Papers - HIRATA Kouichi
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Improved Prediction of Yeast-Like Fungi in Gram Srtained Smears Images Reviewed International journal
Tsubasa Tanaka, Kouichi Hirata
Proc. 18th IIAI International Congress on Advanced Applied Informatics (IIAI AAI 2025) 2025.07
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Fast Approximate Nearest Neighbor Search via Double Filtering of Quantized Projections Reviewed International journal
Naoya Higuchi, Yasunobu Imamura, Takeshi Shinohara, Kouichi Hirata, Tetsuji Kuboyama
Proc. 18th IIAI International Congress on Advanced Applied Informatics (IIAI AAI 2025) 2025.07
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Detecting Bacteria in Gram Stained Smears Images by HIC-YOLO and Its Variants Reviewed International journal
Hiroto Tabakotani, Ukyo Kashino, Kouichi Hirata
Proc. 18th IIAI International Congress on Advanced Applied Informatics (IIAI AAI 2025) 2025.07
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Detecting Bacteria in Gram Stained Smears Images by YOLO and SOD-YOLO Reviewed International journal
Hikaru Kobata, Ukyo Kashino, Kouichi Hirata
Proc. 18th IIAI International Congress on Advanced Applied Informatics (IIAI AAI 2025) 2025.07
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Improved Prediction of Geckler Classification in Gram Stained Smears Images for Sputum Reviewed International journal
Kei Goto, Masaki Kono, Kouichi Hirata
Proc. 18th IIAI International Congress on Advanced Applied Informatics (IIAI AAI 2025) 2025.07
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Classifying Rectangle Regions of Bacteria in Gram Stained Smears Images Reviewed International journal
Hiromu Kuroishi, Kouichi Hirata
Proc. 18th IIAI International Congress on Advanced Applied Informatics (IIAI AAI 2025) 2025.07
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Classifying Entire Images of Samples and Bacteria in Gram Stained Smears Images Reviewed International journal
Tadashi Morikawa, Kouichi Hirata
Proc. 18th IIAI International Congress on Advanced Applied Informatics (IIAI AAI 2025) 2025.07
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Predicting Phagocytotic Activity of Leukocytes in Gram Stained Smears Images Reviewed International journal
Kouya Kagemoto, Ryunosuke Nakajo, Kouichi Hirata
Proc. 18th IIAI International Congress on Advanced Applied Informatics (IIAI AAI 2025) 2025.07
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Detecting Bacteria from Gram Stained Smears Images by the Family of YOLOs Reviewed International journal
Ukyo Kashino, Kyosuke Taira, Kouichi Hirata
Proc. 2024 7th International Conference on Digital Medicine and Image Processing (DMIP 2024) 6 - 10 2025.01
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Detecting Phagocytotic Activity of Leukocytes in Gram Stained Smears Images Reviewed International journal
Ryunosuke Nakajo, Kouichi Hirata
Proc. 2024 7th International Conference on Digital Medicine and Image Processing (DMIP 2024) 17 - 21 2025.01
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Predicting Yeast-Like Fungi from Gram Stained Smears Images Reviewed International journal
Tsubasa Tanaka, Kouya Kagemoto, Kouichi Hirata
Proc. 2024 7th International Conference on Digital Medicine and Image Processing (DMIP 2024) 84 - 87 2025.01
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微生物検査領域におけるArtificial Intelligence Invited Reviewed
平田耕一
臨床検査 ( 医学書院 ) 68 ( 12 ) 1460 - 1464 5ページ 2024.12
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Annotation along Arranged Bacteria to Detect Gram Positive Cocci from Gram Stained Smears Images Reviewed International journal
Ukyo Kashino, Mayu Yoshida, Kouichi Hirata
101 - 104 2024.07
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Ancestral-Path Descendant-Labels Histogram Distance for Rooted Labeled Trees Reviewed International journal
Daisuke Abe, Kouichi Hirata
72 - 77 2024.07
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Activation Functions for Detection of Bacteria from Gram Stained Smears Images by YOLOv8 Reviewed International journal
Kouya Kagemoto, Kouichi Hirata
62 - 67 2024.07
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Comparison with Detection of Bacteria from Gram Stained Smears Images by Various Object Detectors Reviewed International journal
Tsubasa Tanaka, Kouichi Hirata
58 - 61 2024.07
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Data Augmentation for Detection of Bacteria from Gram Stained Smears Images by YOLOv8 Reviewed International journal
Ryunosuke Nakajo, Minori Tsutsui, Kouichi Hirata
105 - 108 2024.07
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Subcaterpillar Isomorphism: Subtree Isomorphism for Rooted Labeled Caterpillars Reviewed International journal
Tomoya Miyazaki, Kouichi Hirata
Recent Advances in Computational Optimization, Studies in Computational Intelligence ( Springer ) 1158 110 - 140 2024.03
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Fast Filtering for Similarity Search Using Conjunctive Enumeration of Sketches in Order of Hamming Distance Reviewed International journal
Naoya Higuchi, Yosunobu Imamura, Vladimir Mic, Takeshi Shinohara, Kouichi Hirata, Tetsuji Kuboyama
Proc. 13th International Conference on Pattern Recognition Applications and Methods (ICPRAM2023) 499 - 510 2024.02
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Sufficient Algorithm for Inclusion of Pattern Caterpillar in Text Tree Reviewed International journal
Daisuke Abe, Tomoya Miyazaki, Kouichi Hirata
128 - 131 2023.07
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Predicting Geckler Classification from Gram Stained Smears Images for Sputum: Image Classification versus Object Detection Reviewed International journal
Hitoshi Sugimoto, Ryotaro Funatsu, Kouichi Hirata
122 - 127 2023.07
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Detecting Bacteria Causing Infectious Disease from Gram Stained Smears Images Reviewed International journal
Ukyo Kashino, Syoma Terada, Kouichi Hirata
13 - 18 2023.07
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Distance-Based Analysis of Positions in Amino Acid Sequences for Structural Proteins of SARS-CoV-2 Delta and Omicron Variants Reviewed International journal
Ryota Nagashima, Uran Yamamoto, Kouichi Hirata
39 - 44 2023.07
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When Did the Word “Science" Mean Science in Today in England?
Chine Sonoi, Kouichi Hirata
1 22 - 30 2023.06
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Subcaterpillar Isomorphism between Caterpillars: Subtree Isomorphism Restricted Text and Pattern Trees To Caterpillars Reviewed International journal
Tomoya Miyazaki, Kouichi Hirata
Proc. 12th International Conference on Pattern Recognition Applications and Methods (ICPRAM2023) 89 - 94 2023.02
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Correlated Mutations of Positions among Structural Proteins in Delta and Omicron Variants for SARS-CoV-2 Amino Acid Sequences Reviewed International journal
Yuishi Shimaya, Kouichi Hirata
Proc. 12th International Conference on Pattern Recognition Applications and Methods (ICPRAM2023) 344 - 349 2023.02
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微生物検査領域における人工知能導入の可能性 Invited Reviewed
平田耕一
検査と技術 ( 医学書院 ) 51 ( 1 ) 48 - 50 2023.01
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Subcaterpillar Isomorphism: Subtree Isomorphism Restricted Pattern Trees to Caterpillars Reviewed International journal
Tomoya Miyazaki, Kouichi Hirata
Proc. 17th Conference on Compute Science and Intelligence Systems (FedCSIS 2022) 351 - 356 2022.09
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Segmental Distance between Rooted Labeled Caterpillars Reviewed International journal
Manami Hagihara, Tomoya Miyazaki, Kouichi Hirata
Proceedings - 2022 12th International Congress on Advanced Applied Informatics, IIAI-AAI 2022 107 - 112 2022.07
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Object Detection as Gram Positive Cocci in Gram Stained Smear Images Reviewed International journal
Hitoshi Sugimoto, Kouichi Hirata
Proceedings - 2022 12th International Congress on Advanced Applied Informatics, IIAI-AAI 2022 134 - 137 2022.07
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Classifying Gram Positive Cocci and Gram Negative Bacilli in Gram Stained Smear Images Reviewed International journal
Ibuki Kawano, Eri Kurumida, Syoma Terada, Kouichi Hirata
Proceedings - 2022 12th International Congress on Advanced Applied Informatics, IIAI-AAI 2022 55 - 60 2022.07
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Finding Correlated Mutations of Positions among Structural Proteins in SARS-CoV-2 Amino Acid Sequences Reviewed International journal
Kan Yonashiro, Yuichi Shimaya, Kouichi Hirata
Proceedings - 2022 12th International Congress on Advanced Applied Informatics, IIAI-AAI 2022 61 - 64 2022.07
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Caterpillar Inclusion: Inclusion Problem for Rooted Labeled Caterpillars Reviewed International journal
Tomoya Miyazaki, Manami Hagihara, Kouichi Hirata
Proc. 11th International Conference on Pattern Recognition Applications and Methods (ICPRAM2022) 280 - 287 2022.02
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Computing the Variations of Edit Distance for Rooted Labaled Caterpillars Reviewed International journal
Manami Hagihara, Takuya Yoshino, Kouichi Hirata
Proc. 11th International Conference on Pattern Recognition Applications and Methods (ICPRAM2022) 272 - 279 2022.02
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Object Detection as Campylobacter Bacteria and Phagocytotic Activity of Leukocytes in Gram Stained Smears Images Reviewed International journal
Yoshihara K., Hirata K.
International Conference on Pattern Recognition Applications and Methods 1 534 - 541 2022.02
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Nearest-Neighbor Search from Large Datasets Using Narrow Sketches Reviewed International journal
Naoya Higuchi, Yasunobu Imamura, Vladimir Mic, Takeshi Shinohara, Kouichi Hirata, Tetsuji Kuboyama
Proc. 11th International Conference on Pattern Recognition Applications and Methods (ICPRAM2022) 401 - 410 2022.02
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Detecting Campylobacter Bacteria and Phagocytotic Activity of Leukocytes from Gram Stained Smears Images Reviewed International journal
Yoshihara K., Hirata K.
Proceedings - 2021 10th International Congress on Advanced Applied Informatics, IIAI-AAI 2021 - 10 - 15 2021.07
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Trim Distance between Positions in Nucleotide Sequences for Structural Proteins of SARS-CoV-2 Reviewed International journal
Yonashiro K., Hirata K.
Proceedings - 2021 10th International Congress on Advanced Applied Informatics, IIAI-AAI 2021 - 35 - 40 2021.07
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Leaf-Preserving Distance between Rooted Labeled Caterpillars Reviewed International journal
Hagihara M., Yoshino T., Hirata K.
Proceedings - 2021 10th International Congress on Advanced Applied Informatics, IIAI-AAI 2021 23 - 28 2021.07
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Caterpillar Alignment Distance for Rooted Labeled Caterpillars: Distance Based on Alignments Required to Be Caterpillars Reviewed
Ukita Y., Yoshino T., Hirata K.
Studies in Computational Intelligence 920 111 - 134 2021.01
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Detecting Campylobacter and Phagocytosis of Bacteria by Leukocytes from Gram Stained Smears Images
Kyohei Yoshihara, Kazuki Hashimoto, Kouichi Hirata
7 - 11 2020.11
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Pivot selection for narrow sketches by optimization algorithms Reviewed International journal
Higuchi N., Imamura Y., Mic V., Shinohara T., Hirata K., Kuboyama T.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 12440 33 - 46 2020.09
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Fast Nearest Neighbor Search with Narrow 16-bit Sketch Reviewed
Naoya Higuchi, Yasunobu Imamura, Tetsuji Kuboyama, Kouichi Hirata, Takeshi Shinohara
Transactions on Mathematical Modeling and its Applications ( The Information Processing Society of Japan ) 13 ( 1 ) 13 - 22 2020.03
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Detection System of Gram Types for Bacteria from Gram Stained Smears Images Reviewed International journal
Ryosuke Iida, Kazuki Hashimoto, Kouichi Hirata, Kimiko Matsuoka, Shigeki Yokoyama
Proc. 9th International Conference on Pattern Recognition Applications and Methods (ICPRAM2020) 477 - 484 2020.02
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Heavy Caterpillar Distances for Rooted Labeled Unordered Trees Reviewed International journal
Nozomi Abe, Takuya Yoshino, Kouichi Hirata
Proc. 9th International Conference on Pattern Recognition Applications and Methods (ICPRAM2020) 198 - 204 2020.02
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Detecting Geckler Classification from Gram Stained Smears Images for Sputum Reviewed International journal
Kazuki Hashimoto, Ryosuke Iida, Kouichi Hirata, Kimiko Matsuoka, Shigeki Yokoyama
Proc. 9th International Conference on Pattern Recognition Applications and Methods (ICPRAM2020) 469 - 476 2020.02
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Path Histogram Distance and Complete Subtree Histogram Distance for Rooted Labeled Caterpillars Reviewed International journal
Taiga Kawaguchi, Takuya Yoshino, Kouichi Hirata
Journal of Information and Telecommunication 4 ( 2 ) 199 - 212 2020.01
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Annealing by Increasing Resampling Reviewed International journal
Naoya Higuchi, Yasunobu Imamura, Takeshi Shinohara, Kouichi Hirata, Tetsuji Kuboyama
Lecture Notes in Computer Science 11996 71 - 92 2020.01
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Fast Filtering for Nearest Neighbor Search by Sketch Enumeration without Using Matching Reviewed International journal
Naoya Higuchi, Yasunobu Imamura, Tetsuji Kuboyama, Kouichi Hirata, Takeshi Shinohara
Proc. 32nd Australian Joint Conference on Advances in Artificial Intelligence, Lecture Notes in Artificial Intelligence 11919 240 - 252 2019.12
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Alignment for Rooted Labeled Caterpillars Reviewed
Yoshiyuki Ukita, Takuya Yoshino, Kouichi Hirata
Preprints of Position Papers of the 2019 Federated Conference on Computer Science and Information Systems 12 - 25 2019.09
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Iterative Consistency-Based Feature Selection and Its Application to Nucleotide Sequences of Influenza A Viruses Reviewed
Sho Shimamura, Kouichi Hirata
Information Engineering Express 5 ( 1 ) 86 - 96 2019.05
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Introducing Fluctuation into Increasing Order of Symmetric Uncertainty for Consistency-Based Feature Selection Reviewed
Sho Shimamura, Kouichi Hirata
Proc. 15th Annual Conference on Theory and Applications of Models of Computation, Lecture Notes in Computer Science 11436 550 - 565 2019.04
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The Reselection of Adjacent Sets by Consistency-Based Feature Selection Algorithm Reviewed
Sho Shimamura, Kouichi Hirata
Proc. 2nd International Conference on Information Science and System 4 pages 2019.03
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Classfication System of Staining and Shapes for Bacteria from Gram Stain Images
Kazuki Hashimoto, Ryosuke Iida, Kouichi Hirata
99 - 104 2019.03
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Annealing by Increasing Resampling in the Unified View of Simulated Annealing Reviewed
Yasunobu Imamura, Naoya Higuchi, Takeshi Shinohara, Kouichi Hirata, Tetsuji Kuboyama
Proc. 8th International Conference on Pattern Recognition Applications and Methods 173 - 180 2019.02
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Vertical and Horizontal Distances to Approximate Edit Distance for Rooted Labeled Caterpillars Reviewed
Kohei Muraka, Takuya Yoshino, Kouichi Hirata
Proc. 8th International Conference on Pattern Recognition Applications and Methods 590 - 597 2019.02
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Bipartite Edge Correlation Clustering: Finding an Edge Biclique Partition from a Bipartite Graph with Minimum Disagreement Reviewed
Mikio Mizukami, Tetsuji Kuboyama, Kouichi Hirata
Proc. 8th International Conference on Pattern Recognition Applications and Methods 699 - 706 2019.02
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Fast Nearest Neighbor Search with Narrow 16-Bit Sketch Reviewed
Naoya Higuchi, Yasunobu Imamura, Tetsuji Kuboyama, Kouichi Hirata, Takeshi Shinohara
Proc. 8th International Conference on Pattern Recognition Applications and Methods 540 - 547 2019.02
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Earth Mover's Distance Between Rooted Labeled Unordered Trees Formulated from Complete Subtrees Reviewed
Taiga Kawaguchi, Takuya Yoshino, Kouichi Hirata
ICPRAM2018: Proc. International Conference on Pattern Recognition Applications and Methods, Lecture Notes in Artificial Intelligence 11351 65 - 88 2019.01
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LCA Histogram Distance for Rooted Labeled Caterpillars Reviewed
Takuya Yoshino, Kohei Muraka, Kouichi Hirata
Proc. 10th International Conference on Knowledge Discovery and Information Retrieval (KDIR 2018) 2018.09
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Computing Edit Distance between Rooted Labeled Caterpillars Reviewed International journal
Kohei Muraka, Takuya Yoshino, Kouichi Hirata
Proc. Federated Conference on Computer Science and Information Systems (FedGCSIS 2018) 245 - 252 2018.09
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Computing Edit Distance for Rooted Labeled Caterpillars
Kohei Muraka, Takuya Yoshino, Kouichi Hirata
14 - 19 2018.08
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Bipartite Edge Correlation Clustering and Its Randomized Algorithm
Mikio Mizukami, Kouichi Hirata
26 - 31 2018.08
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Implementation for Linear-Time Algorithms of Recognizing Outerplanar Graphs
Yoshiyuki Ukita, Kouichi Hirata
20 - 25 2018.08
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Path Histogram Distance for Rooted Labeled Caterpillars Reviewed
Taiga Kawaguchi, Takuya Yoshino, Kouichi Hirata
Proc. 10th Asian Conference on Intelligent Information and Database Systems (ACIIDS 2018), Lecture Notes in Artificial Intelligence 10751 10751 276 - 286 2018.03
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Path Histogram Distance for Rooted Labeled Caterpillars
Taiga Kawaguchi, Takuya Yoshino, Kouichi Hirata
27 - 32 2018.01
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Earth Mover's Distance for Rooted Labeled Unordered Trees based on Tai Mapping Hierarchy Reviewed
Taiga Kawaguchi, Kouichi Hirata
Proc. 7th International Conference on Pattern Recognition Applications and Methods 159 - 168 2018.01
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Nearest Neighbor Search using Sketches as Quantized Images of Dimension Reduction Reviewed
Naoya Higuchi, Yasunobu Imamura, Tetsuji Kuboyama, Kouichi Hirata, Takeshi Shinohara
Proc. 7th International Conference on Pattern Recognition Applications and Methods 356 - 363 2018.01
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Extacting Mutually Dependent Multisets Reviewed
Natsuki Kiyota, Sho Shimamura, Kouichi Hirata
Proc. 20th International Conference on Discovery Science (DS 2017), Lecture Notes in Artificial Intelligence 10558 267 - 280 2017.10
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Pivot Selection for Dimension Reduction using Annealing by Increasing Resampling Reviewed
Yasunobu Imamura, Naoya Higuchi, Tetsuji Kuboyama, Kouichi Hirata, Takeshi Shinohara
Proc. Learn. Wissen. Daten, Analysen. (LWDA 2017) 15 - 24 2017.09
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On the Earth Mover's Distances Based on Complete Subtrees for Rooted Labeled Trees Reviewed
Taiga Kawaguchi, Kouichi Hirata
Proc. 2017 International Workshop on Smart Info-Media Systems in Asia (SISA 2017) 225 - 228 2017.09
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On the Applications of Iterative Consistency-Based Feature Selection to Nucleotide Sequences for Influenza A Viruses Reviewed
Sho Shimamura, Kouichi Hirata
Proc. 2017 International Workshop on Smart Info-Media Systems in Asia (SISA 2017) 234 - 237 2017.09
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Anchored Alignment Distance between Rooted Labeled Unordered Trees Reviewed
Takuya Yoshino, Yuma Ishizaka, Kouichi Hirata
Proc. Federated Conference on Computer Science and Information Systems (FedGCSIS 2017) 439 - 446 2017.09
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Taiマッピング階層に基づく根付きラベル付き無順序木の地均し距離
川口泰雅, 平田耕一
第104回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B507 2017.08
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Iterative Feature Selection Based on Binary Consistency Reviewed
Sho Shimamura, Kouichi Hirata
Proc. 8th International Conference on E-Service and Knowledge Management (ESKM 2017) 396 - 399 2017.07
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Tai Mapping Hierarchy for Rooted Labeled Trees through Common Subforest Reviewed
Takuya Yoshino, Kouichi Hirata
Theory of Computing Systems 60 ( 4 ) 759 - 783 2017.05
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Edit Distance Computable in Polynomial Time between Unrooted Labeled Trees
Takuya Yoshino, Kouichi Hirata
73 - 77 2017.03
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Extracting Mutually Dependent Multisets from Antibiograms
Natsuki Kiyota, Kouichi Hirata
95 - 100 2017.03
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On the Earth Mover's Distances for Rooted Labeled Trees
Taiga Kawaguchi, Kouichi Hirata
84 - 88 2017.03
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On the Popularity of Evolutionary Through in the Nineteenth Century English and American Society after the Publication of The Origin of Spieces
( 64 ) 2017.02
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On Iterative Consistency-Based Feature Selection for Nuecleotide Sequences
Sho Shimamura, Kouichi Hirata
1 - 4 2016.12
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Fast Hilbert Sort Algorithm without Using Hilbert Indices Reviewed
Yasunobu Imamura, Takeshi Shinohara, Kouichi Hirata, Tetsuji Kuboyama
Proc. 9th International Conference on Similarity Search and Applications (SISAP 2016), Lecture Notes in Artificial Intelligence 9939 259 - 267 2016.10
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On Temporal and Regional Analysis for Nucleotide Sequences of Influenza A (H1N1) Viruses Based on Feature Selection Reviewed
Sho Shimamura, Kouichi Hirata
Proc. 2016 International Workshop on Smart Info-Media Systems in Asia (SISA 2016) 38 - 42 2016.09
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Enhanced Tai Mapping for Unrooted Trees Reviewed
Takuya Yoshino, Kouichi Hirata
Proc. 2016 International Workshop on Smart Info-Media Systems in Asia (SISA 2016) 6 - 12 2016.09
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特徴選択に基づくA型H1N1亜型インフルエンザウイルス塩基配列の時間性および地域性の解析
嶋村翔, 平田耕一
第101回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B504 68 - 72 2016.08
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根付きラベル付き無順序木のアンカーアライメント距離
芳野拓也, 石坂悠眞, 平田耕一
第101回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B504 1 - 6 2016.08
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Extracting Propagation Patterns from Bacterial Culture Data in Medical Facility Reviewed
Kazuki Nagayama, Kouichi Hirata, Shigeki Yokoyama, Kimiko Matsuoka
New Frontiers in Artificial Intelligence, Lecture Notes in Artificial Intelligence 10091 409 - 417 2016.07
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Enhanced Tai Mapping Hierarchy to Unrooted Trees
Takuya Yoshino, Kouichi Hirata
55 - 60 2016.01
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On Computing Anchored Alignment Distance for Rooted Trees
Yuma Ishizaka, Takuya Yoshino, Kouichi Hirata
39 - 44 2016.01
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Tai Mapping Hierarchy for Rooted Labeled Trees Relevant to Common Subforest
Takuya Yoshino, Kouichi Hirata
1 - 6 2015.08
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Finding Maximal Kissing Hairpins through RNA Segments in Influenza A Viruses
Sho Shimamura, Kouichi Hirata
36 - 41 2015.08
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Mapping Kernels Between Rooted Labeled Trees Beyond Ordered Trees Reviewed
Kouichi Hirata, Tetsuji Kuboyama, Takuya Yoshino
New Frontiers in Artificial Intelligence, Lecture Notes in Artificial Intelligence 9067 317 - 330 2015.04
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Central Point Selection for Dimension Reduction Projection Simple-Map Using Binary Quantization Reviewed
Quming Jin, Masaya Nakashima, Takeshi Shinohara, Kouichi Hirata, Tetsuji Kuboyama
New Frontiers in Artificial Intelligence, Lecture Notes in Artificial Intelligence 9067 310 - 316 2015.04
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Anchored Alignment Problem for Rooted Labeled Trees Reviewed
Yuma Ishizaka, Takuya Yoshino, Kouichi Hirata
New Frontiers in Artificial Intelligence, Lecture Notes in Artificial Intelligence 9067 296 - 309 2015.04
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根付き木のアンカーアライメント問題
石坂悠眞, 芳野拓也, 平田耕一
第95回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B402 14 - 19 2014.10
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巡回的順序木のアライメント
芳野拓也, 平田耕一
第94回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B401 29 - 34 2014.07
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Tractable and Intractable Variations of Unordered Tree Edit Distance Reviewed International journal
Yoshiyuki Yamamoto, Kouichi Hirata, Tetsuji Kuboyama
International Journal of Foundations of Computer Science 25 ( 3 ) 307 - 330 2014.07
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Segmental Mapping and Distance between Rooted Labeled Ordered Trees Reviewed
Tomohiro Kan, Shoichi Higuchi, Kouichi Hirata
Fundamenta Informaticae 132 1 - 23 2014.04
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Agreement Subtree Mapping Kernel for Phylogenetic Trees Reviewed
Issei Hamada, Takaharu Shimada, Daiki Nakata, Kouichi Hirata, Tetsuji Kuboyama
New Frontier in Artificial Intellligence, JSAI-isAI 2013 Workshops, Lecture Notes in Artificial Intelligence 8417 321 - 336 2014.04
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Polynomial Delay and Space Discovery of Connected and Acyclic Sub-Hypergraphs in a Hypergraph Reviewed
Kunihiro Wasa, Takeaki Uno, Kouichi Hirata, Hiroki Arimura
Proc. 16th International Conference on Discovery Science (DS2013), Lecture Notes in Artificial Intelligence 8140 308 - 323 2013.10
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Faster Algorithm for Tree Similarity Based on Compressed Enumeration of Bounded-Sized Ordered Subtrees Reviewed
Kunihiro Wasa, Kouichi Hirata, Takeaki Uno, Hiroki Arimura
Proc. 6th International Conference on Similarity Search and Applications (SISAP2013), Lecture Notes in Artificial Intelligence 8199 73 - 84 2013.10
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根付きラベル付き木の断片マッピングの階層
平田耕一
第90回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B301 19 - 24 2013.07
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バズマーケッティングサイトからのコミュニティマッピングの抽出
樋口鐘一, 橋本隆子, 久保山哲二, 平田耕一
第88回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B203 133 - 138 2013.01
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超グラフに含まれる非巡回部分超グラフの効率よい列挙
和佐州洋, 有村博紀, 宇野毅明, 平田耕一
第88回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B203 85 - 90 2013.01
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劣制限マッピングの新たな特徴付けとアライメント距離に関するマッピングの階層
平田耕一
第88回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-B203 51 - 56 2013.01
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An Isolated-Subtree Inclusion for Unordered Trees Reviewed
2012.09
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Translating XML Documents through Dyck-Typed Regular Translation Elementary Formal Systems Reviewed
2012.09
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On Computing Tractable Variations of Unordered Tree Edit Distance with Network Algorithms Reviewed
Yoshiyuki Yamamoto, Kouichi Hirata, Tetsuji Kuboyama
New Frontiers in Artificial Intelligence: Joint JSAI-isAI 2011 Workshops 215 - 223 2012.07
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An A* Algorithm for Computing Edit Distance between Rooted Labeled Unordered Trees Reviewed
Shoichi Higuchi, Tomohiro Kan, Yoshiyuki Yamamoto, Kouichi Hirata
New Frontiers in Artificial Intelligence: Joint JSAI-isAI 2011 Workshops 186 - 196 2012.07
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On Computing Tractable Variations of Unordered Tree Edit Distance with Network Algorithms Reviewed
Yoshiyuki Yamamoto, Kouichi Hirata, Tetsuji Kuboyama
Pre-Proc. Second Workshop on Algorithms for Large-Scale Information Processing in Knowledge Discovery (ALSIP 2011) 6 2011.12
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An A* Algorithm for Computing Edit Distance between Rooted Labeled Unordered Trees Reviewed
Shoichi Higuchi, Tomohiro Kan, Yoshiyuki Yamamoto, Kouichi Hirata
Pre-Proc. Second Workshop on Algorithms for Large-Scale Information Processing in Knowledge Discovery (ALSIP 2011) 6 2011.12
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Improved MAX SNP-Hard Results for Finding an Edit Distances between Unordered Trees Reviewed
Kouichi Hirata,Yoshiyuki Yamamoto,Tetsuji Kuboyama
Proc. 22nd Annual Symposium on Combinatorial Pattern Matching (CPM2011) 2011.06
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A Bottom-Up Edit Distance between Rooted Labeled Trees Reviewed
Yoshiyuki Yamamoto,Kouichi Hirata,Tetsuji Kuboyama
Proc. 7th Workshop on Learning with Logics and Logics for Learning 26 - 33 2011.03
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Broom Distance between Rooted Labeled Trees Reviewed
Tetsuji Kuboyama,Kouichi Hirata
Proc. 7th Workshop on Learning with Logics and Logics for Learning 34 - 41 2011.03
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On Learning Dyck-Typed Regular Translation Elementary Formal Systems with Tag Operations between XML Documents Reviewed
Noriko Sugimoto,Kouichi Hirata
Proc. 7th Workshop on Learning with Logics and Logics for Learning 4 - 10 2011.03
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Discovering Global Propagation for Influenza A Viruses Based on Robinson-Foulds Distance between Phylogenetic Trees Reviewed
Kazuya Sata,Kouichi Hirata,Kimihito Ito,Tetsuji Kuboyama
Annual International Conference on BioInformatics and Computational Biology (BICB 2011) 2011.03
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Predicting Mutation Trend of Influenza A Virus through Dimensionality Reduction in Hamming Metric on HA Amino Acid Sequences Reviewed
Tetsuji Kuboyama,Kimihito Ito,Kouichi Hirata,Hiroshi Sakamoto
Annual International Conference on BioInformatics and Computational Biology (BICB 2011) 2011.03
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Aligned Bipartite Episodes between the Genera of Bacteria Reviewed
Takashi Katoh,Kouichi Hirata,Hiroki Arimura,Shigeki Yokoyama,Kimiko Matsuoka
Proc. 2010 IEEE/ICME International Conference on Complex Medical Engineering (CME2010) 193 - 197 2010.07
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Temporal Interrelations of Bacteria Based on the Occurrence Time Reviewed
Kouichi Hirata,Kenishiro Motoyama,Shigeki Yokoyama,Kimiko Matsuoka
Proc. 2010 IEEE/ICME International Conference on Complex Medical Engineering (CME2010) 188 - 192 2010.07
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Approximating Tree Edit Distance through String Edit Distance for Binary Tree Codes Reviewed
Taku Aratsu,Kouichi Hirata,Tetsuji Kuboyama
Fundamenta Informaticae 101 ( 1 ) 1 - 15 2010.04
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An Efficient Depth-First Search Algorithm for Extracting Frequent Diamond Episodes from Event Sequences Reviewed
Takashi Katoh,Hiroki Arimura,Kouichi Hirata
2 ( 4 ) 1 - 12 2009.12
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Mining Frequent Bipartite Episode from Event Sequences Reviewed
Takashi Katoh,Hiroki Arimura,Kouichi Hirata
Proc. 12th International Conference on Discovery ScienceLecture Notes in Artificial Intelligence 5808 136 - 151 2009.10
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Discovering Networks for Global Propagation of Influenza A (H3N2) Viruses by Clustering Reviewed
Kazuya Sata,Kouichi Hirata,Kimihito Ito,Tetsuji Kuboyama
Proc. 13th International Conference on Knowledge-Based and Intelligent Information and Engineering Systems (KES 2009)Lecture Notes in Artificial Intelligence 5712 490 - 497 2009.09
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Mining Frequent k-Partite Episodes from Event Sequences Reviewed
Takashi Katoh,Hiroki Arimura,Kouichi Hirata
Proc. 6th Workshop on Learning with Logics and Logics for Learning 43 - 50 2009.07
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Mining Frequent k-Partite Episodes from Event Sequences Reviewed
Takashi Katoh,Hiroki Arimura,Kouichi Hirata
New Frontiers in Artificial Intelligence: Joint JSAI-isAI 2009 Workshops,Lecture Notes in Artificial Intelligence 6284 331 - 344 2009.07
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Local Frequency Distances for Rooted Ordered Trees Reviewed
Taku Aratsu,Kouichi Hirata,Tetsuji Kuboyama
Proc. 6th Workshop on Learning with Logics and Logics for Learning 11 - 18 2009.07
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A Polynomial-Delay Polynomial-Space Algorithm for Extracting Frequent Diamond Episodes from Event Sequences Reviewed
Takashi Katoh,Hiroki Arimura,Kouichi Hirata
Proc. 13th Pacific-Asia Conference on Knowledge Discovery and Data MiningLecture Notes in Artificial Intelligence 5476 172 - 183 2009.04
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Extracting Sequential Episodes Representing Replacements of Bacteria from Bacterial Culture Data Reviewed
Takashi Katoh,Kouichi Hirata,Hiroki Arimura,Shigeki Yokoyama,Kimiko Matsuoka
Proc. 2009 IEEE/ICME International Conference on Complex Medical Engineering (CME2009) 2009.04
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Approximating Tree Edit Distance through String Edit Distance for Binary Tree Code Reviewed
Taku Aratsu,Kouichi Hirata,Tetsuji Kuboyama
Proc. 35th International Conference on Current Trends in Theory and Practice of Computer Science,Lecture Notes in Computer Science 5404 93 - 104 2009.01
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On Generating Maximal Acyclic Subhypergraphs with Polynomial Delay Reviewed
Taishin Daigo,Kouichi Hirata
Proc. 35th International Conference on Current Trends in Theory and Practice of Computer Science,Lecture Notes in Computer Science 5404 181 - 192 2009.01
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二分木符号の文字列編集距離による木の編集距離の近似
荒津拓,平田耕一,久保山哲二
第71回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A802 57 - 62 2008.09
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極大非巡回部分超グラフの多項式遅延列挙アルゴリズム
大梧諦真,平田耕一
第70回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A801 1 - 8 2008.07
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An Efficient Unordered Tree Kernel and Its Application to Glycan Classification Reviewed
Tetsuji Kuboyama,Kouichi Hirata,Kiyoko F. Kinoshita
Proc. 12th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD2008), Lecture Notes in Artificial Intelligence 5012 184 - 195 2008.05
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A Simple Characterization on Serially Constructible Episodes Reviewed
Takashi Katoh,Kouichi Hirata
Proc. 12th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD2008), Lecture Notes in Artificial Intelligence 5012 600 - 607 2008.05
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A Tree Distance Function Based on Multi-sets Reviewed
Arnoldo Jose Muller Molina,Kouichi Hirata,Takeshi Shinohara
Proc. ALSIP'08, Working Notes of PAKDD Workshops 90 - 100 2008.05
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A Tree Distance Function Based on Multi-sets Reviewed
Arnoldo Jose Muller Molina,Kouichi Hirata,Takeshi Shinohara
JSAI PAKDD 2008 Post-Workshop ProceedingsLecture Notes in Artificial Intelligence 5433 87 - 98 2008.05
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Sibling Distance for Rooted Labeled Trees Reviewed
Taku Aratsu,Kouichi Hirata,Tetsuji Kuboyama
JSAI PAKDD 2008 Post-Workshop ProceedingsLecture Notes in Artificial Intelligence 5433 99 - 110 2008.05
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Sibling Distance for Rooted Labeled Trees Reviewed
Taku Aratsu,Kouichi Hirata,Tetsuji Kuboyama
Proc. ALSIP'08, Working Notes of PAKDD Workshops 101 - 112 2008.05
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極大非巡回部分超グラフの列挙アルゴリズム
大梧諦真,平田耕一
第68回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A703 49 - 52 2008.01
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単純で高速な根付きラベル付き木の類似度
荒津拓,平田耕一
第68回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A703 53 - 58 2008.01
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Mining Frequent Diamond Episodes from Event Sequences Reviewed
Takashi Katoh,Kouichi Hirata,Masateru Harao
Proc. 4th International Conference on Modeling Decisions for Artificial Intelligence (MDAI2007), Lecture Notes in Artificial Intelligence 4617 477 - 488 2007.08
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Inspection of the Effect of Route Information in Traffic Control by Multiagent Simulation Reviewed
Ken Harada,Masateru Harao,Kouichi Hirata
CD-ROM Proc. 4th International Conference on Modeling Decisions for Artificial Intelligence (MDAI2007) 60 - 67 2007.08
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直列エピソードから構成可能なエピソードのグラフ理論的性質
河東孝,平田耕一
第66回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A701 47 - 52 2007.07
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帰納的実数値関数の帰納的枚挙可能集合の学習可能性
廣渡栄寿,平田耕一,宮原哲浩
第66回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A701 7 - 12 2007.07
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Learnability of Recursively Enumerable Sets of Recursive Real-Valued Functions Reviewed
Eiju Hirowatari,Kouichi Hirata,Tetsuhiro Miyahara
Proc. CiE2007(Computability in Europe), University of Siena, Technical Report 487 186 - 193 2007.06
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Mining Frequent Elliptic Episodes from Event Sequences Reviewed
Takashi Katoh,Kouichi Hirata
Proc. 5th Workshop on Learning with Logics and Logics for Learning (LLLL2007) 46 - 52 2007.06
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A Minimal Acyclic Generalization with Tractable Removal of Redundancy Reviewed
Megumi Kuwabara,Kouichi Hirata,Masateru Harao
Proc. 5th Workshop on Learning with Logics and Logics for Learning (LLLL2007) 25 - 31 2007.06
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Extraction of Sectorial Episodes Representing Changes for Drug Resistance and Replacements of Bacteria Reviewed
Takashi Katoh,Kouichi Hirata,Masateru Harao,Shigeki Yokoyama,Kimiko Matsuoka
Proc. IEEE/ICME International Conference on Complex Medical Engineering (CME2007) 304 - 309 2007.05
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Efficient Schema Matching Algorithm Based on Pre-checking Reviewed
Kengo Kubo,Keizo Yamada,Kouichi Hirata,Masateru Harao
Systems and Computers in Japan 38 ( 4 ) 143 - 151 2007.04
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A Spectrum Tree Kernel Reviewed
Tetsuji Kuboyama,Kouichi Hirata,Hisashi Kashima,Kiyoko F. Aoki-Kinoshita,Hiroshi Yasuda
Journal of JSAI 22 ( 2 ) 140 - 147 2007.01
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A Gram Distribution Kernel Applied to Glycan Classification and Motif Extraction Reviewed
Tetsuji Kuboyama,Kouichi Hirata,Kiyoko F. Aoki-Kinoshita,Hisashi Kashima,Hiroshi Yasuda
Proc. 17th International Conference on Genome Informatics (GIW2006) 25 - 34 2006.12
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Mining Sectorial Episodes from Event Sequences Reviewed
Takashi Katoh,Kouichi Hirata,Masateru Harao
Proc. 9th International Conference on Discovery Science (DS2006), Lecture Notes in Artificial Intelligence 4265 137 - 148 2006.10
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根付き無順序木のフィルタリング
大倉暢仁,平田耕一,久保山哲二,原尾政輝
第63回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A601 19 - 24 2006.09
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イベント列からの扇状エピソード抽出
河東孝,平田耕一,原尾政輝
第63回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A601 39 - 44 2006.09
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幅限定節の最小汎化
桑原恵,平田耕一,原尾政輝
第63回人工知能学会基本問題研究会, 人工知能学会研究会資料 SIG-FPAI-A601 89 - 94 2006.09
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Finite Prediction of Recursive Real-Valued Functions Reviewed
Eiju Hirowatari,Kouichi Hirata,Tetsuhiro Miyahara
Proc. Computability in Europe 2006 (University of Wales Swansea, Computer Science Report Series, Report # CSR 7-2006) 140 - 149 2006.07
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The Gram Distribution for Rooted Ordered Trees Reviewed
Nobuhito Ohkura,Kouichi Hirata,Tetsuji Kuboyama,Masateru Harao,Shin-Ichi Nakano
Proc. 4th Workshop on Learning with Logics and Logics for Learning (LLLL2006) 69 - 77 2006.06
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Extraction of Frequent Causal Episodes from Bacterial Culture Data Reviewed
Takashi Katoh,Kouichi Hirata,Masateru Harao
Proc. 4th Workshop on Learning with Logics and Logics for Learning (LLLL2006) 53 - 60 2006.06
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Subsumption Algorithm for Chordal Clauses Reviewed
Megumi Kuwabara,Kouichi Hirata,Masateru Harao
Proc. 4th Workshop on Learning with Logics and Logics for Learning (LLLL2006) 23 - 30 2006.06
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A q-Grams Based Distance Measure for Ordered Labeled Trees Reviewed
Tetsuji Kuboyama,Kouichi Hirata,Nobuhito Ohkura,Masateru Harao
Proc. 4th Workshop on Learning with Logics and Logics for Learning (LLLL2006) 77 - 83 2006.06
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Prediction-Hardness of Acyclic Conjunctive Queries Reviewed
Theoretical Computer Science 348 ( 1 ) 84 - 94 2005.12
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帰納的実数値関数の有限予測と無矛盾推論
廣渡栄寿,平田耕一,宮原哲浩
第61回人工知能学会基本問題研究会 人工知能学会研究会資料 SIG-FPAI-A503 81 - 86 2005.11
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Chordal Clause の包摂アルゴリズムについて
桑原恵,平田耕一,原尾政輝
第61回人工知能学会基本問題研究会 人工知能学会研究会資料 SIG-FPAI-A503 63 - 68 2005.11
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根付き順序木のグラム分散
大倉暢仁,平田耕一,久保山哲二,中野眞一
第61回人工知能学会基本問題研究会 人工知能学会研究会資料 SIG-FPAI-A503 51 - 56 2005.11
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The q-Gram Distance for Ordered Unlabeled Trees Reviewed
Nobuhito Ohkura,Kouichi Hirata,Tetsuji Kuboyama,Masateru Harao
Proc. 8th International Conference on Discovery Science (DS2005), Lecture Notes in Artificial Intelligence 3735 189 - 202 2005.10
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ラベル無し順序木のqグラム距離
大倉暢仁,平田耕一,久保山哲二,原尾政輝
コンピュテーション研究会, 信学技法 COMP2005-31 105 25 - 29 2005.09
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On Finding Acyclic Subhypergrahs Reviewed
Megumi Kuwabara,Kouichi Hirata,Masateru Harao
Proc. 15th International Symposium on Fundamentals of Computation Theory (FCT2005), Lecture Notes in Computer Science 3623 491 - 503 2005.08
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Performance Support System for Beginners Reviewed
Shogo Ozaki,Masateru Harao,Kouichi Hirata
Proc. 3rd International Conference on Information Technology and Applications (ICITA'2005) 2 415 - 418 2005.07
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Multi-Agent Based Modeling and Simulation of Consensus Formations in Arguments Reviewed
Kosuke Ono,Masateru Harao,Kouichi Hirata
Proc. 3rd International Conference on Information Technology and Applications (ICITA'2005) 1 264 - 267 2005.07
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スキーマ誘導方式を用いたシークェント形式汎用定理自動証明器の開発
尹淑萍,山田敬三,原尾政輝,平田耕一
夏のLAシンポジウム2005 2005.07
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Prediction of Real-Valued Functions from Finite Examples Reviewed
Eiju Hirowatari,Kouichi Hirata,Tetsuhiro Miyahara
New Frontiers in Artificial Intelligence (Joint JSAI 2005 Workshop Post-Proceedings), Lecture Notes in Artificial Intelligence 4012 224 - 234 2005.06
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On Generalization and Subsumption for Ordered Clauses Reviewed
Megumi Kuwabara,Takeshi Ogawa,Kouichi Hirata,Masateru Harao
New Frontiers in Artificial Intelligence (Joint JSAI 2005 Workshop Post-Proceedings) Lecture Notes in Artificial Intelligence 4012 212 - 223 2005.06
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Prediction of Real-Valued Functions from Finite Examples Reviewed
Eiju Hirowatari,Kouichi Hirata,Tetsuhiro Miyahara
Proc. Workshop on Learning with Logics and Logics for Learning (LLLL) 81 - 88 2005.06
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Analogy Based Generic Automatic Theorem Prover Reviewed
Keizo Yamada,Shuping Yin,Masateru Harao,Kouichi Hirata
Proc. Workshop on Learning with Logics and Logics for Learning (LLLL) 28 - 33 2005.06
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Frequent Few-Overlapped Monotone DNF Formulas Reviewed
Yoshikazu Shima,Kouichi Hirata,Masateru Harao
Proc. Workshop on Learning with Logics and Logics for Learning (LLLL) 9 - 15 2005.06
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On Generalization and Subsumption for Ordered Clauses Reviewed
Megumi Kuwabara,Takeshi Ogawa,Kouichi Hirata,Masateru Harao
Proc. Workshop on Learning with Logics and Logics for Learning (LLLL) 21 - 27 2005.06
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Development of a Multi-Agent Based Generic Traffic Simulator Reviewed
Kosuke Ono,Takashi Hata,Toyofumi Maetani,Masateru Harao,Kouichi Hirata
Proc. Agent Network Dynamics and Intelligence (ANDI) 83 - 89 2005.06
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Development of a Multi-Agent Based Generic Traffic Simulator Reviewed
Kosuke Ono,Takashi Hata,Toyofumi Maetani,Masateru Harao,Kouichi Hirata
New Frontiers in Artificial Intelligence (Joint JSAI 2005 Workshop Post-Proceedings) Lecture Note in Artificial Intelligence 4012 249 - 260 2005.06
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On the Prediction of Recursive Real-Valued Functions Reviewed
Eiju Hirowatari,Kouichi Hirata,Tetsuhiro Miyahara,Setsuo Arikawa
The First CiE (Computability in Europe) Conference (CiE2005), ILLC Publication 93 - 103 2005.06
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Extraction of Frequent Few-Overlapped Monotone DNF Formulas with Depth-First Prunning Reviewed
Yoshikazu Shima,Kouichi Hirata,Masateru Harao
Proceedings of the 9th Pacific-Aisa Conference on Knowledge Discovery and Data Mining (PAKDD2005), Lecture Notes in Artificial Intelligence 3518 50 - 60 2005.05
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Disjunctive Rules Extracted from MRSA Data with Verification Reviewed
Kouichi Hirata,Yoshikazu Shima,Masateru Harao,Shigeki Yokoyama,Kimiko Matsuoka,Taeko Izumi
Proc. 1st International Conference on Complex Medical Engineering (CME2005) 326 - 330 2005.05
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Risk Management System for Hospital-Acquired Infection Based on Bacterial Culture Database Reviewed
Yuichi Ikenaga,Kouichi Hirata,Masateru Harao,Shigeki Yokoyama,Kimiko Matusoka
Proc. 1st International Conference on Complex Medical Engineering (CME2005) 423 - 427 2005.05
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Attribute Selection Measures with Possibility and Their Application to Classifying MRSA from MSSA Reviewed
Kouichi Hirata,Masateru Harao,Minoru Wada,Shigeki Yokoyama,Kimiko Matusoka
Proc. 1st International Conference on Complex Medical Engineering (CME2005) 418 - 422 2005.05
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Extracting Disjunctive Closed Rules from MRSA Data Reviewed
Yoshikazu Shima,Kouichi Hirata,Masateru Harao,Shigeki Yokoyama,Kimiko Matsuoka,Taeko Izumi
Proc. 1st International Conference on Complex Medical Engineering (CME2005) 315 - 321 2005.05
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Efficiently Computable Classes of Second Order Predicate Schema Matching Problems Reviewed
Masateru Harao,Shuping Yin,Keizo Yamada,Kouichi Hirata
Proc. 19th International Workshop on Unification (UNIF 05) 121 - 134 2005.04
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Efficient Second-Order Predicate Schema Matching Based on Projection Position Indexing Reviewed
Masateru Harao,Shuping Yin,Keizo Yamada,Kouichi Hirata
Proc. 5th International Workshop on the Implementation of Logics (IWIL2004) 31 - 42 2005.03
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Development of an Analogy-Based Generic Sequent Style Automatic Theorem Prover Amalgamated with Intractive Proving Reviewed
Keizo Yamada,Shuping Yin,Masateru Harao,Kouichi Hirat
Proc. 5th International Workshop on the Implementation of Logics (IWIL2004) 78 - 86 2005.03
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Refutability and Reliability for Inductive Inference of Recursive Real-Valued Functions Reviewed
Eiju Hirowatari,Kouichi Hirata,Tetsuhiro Miyahara,Setsuo Arikawa
IPSJ Transactions on Mathematical Modeling and Its Application 46 ( SIG2(TOM11) ) 1 - 11 2005.01
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Extracting Minimal and Closed Monotone DNF Formulas Reviewed
Yoshikazu Shima,Shinji Mitsuishi,Kouichi Hirata,Masateru Harao
Proceedings of the 7th International Conference on Discovery Science, Lecture Notes in Artificial Intelligence 3245 298 - 305 2004.10
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Generalization Algorithms for Second-Order Terms Reviewed
Kouichi Hirata,Takeshi Ogawa,Masateru Harao
Proceedings of the 14th International Conference on Inductive Logic Programming, Lecture Notes in Artificial Intelligence 3194 147 - 163 2004.09
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Tractable and Intractable Second-Order Matching Problems Reviewed
Kouichi Hirata,Keizo Yamada,Masateru Harao
Journal of Symbolic Computation 37 ( 5 ) 611 - 628 2004.05
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Extraction of Coverings as Monotone DNF Formulas Reviewed
Kouichi Hirata,Ryosuke Nagazumi,Masateru Harao
Proceedings of the 6th International Conference on Discovery Science (Lecture Notes in Artificial Intelligence 2843) 165 - 178 2003.10
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On Condensation of a Clause Reviewed
Proceedings of the 13th International Conference on Inductive Logic Programming (Lecture Notes in Artificial Intelligence 2845) 164 - 179 2003.10
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Learning Elementary Formal Systems with Queries Reviewed
Hiroshi Sakamoto,Kouichi Hirata,Hiroki Arimura
Theoretical Computer Science 298 ( 1 ) 21 - 50 2003.04
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Criteria for Inductive Inference with Mind Changes and Anomalies of Recursive Real-Valued Functions Reviewed
Eiju Hirowatari,Kouichi Hirata,Tetsuhiro Miyahara,Setsuo Arikawa
The Transactions of IEICE E86-D ( 2 ) 219 - 227 2003.02
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Pre-Checkingに基づく効率的スキーママッチングアルゴリズム Reviewed
久保憲吾,山田敬三,平田耕一,原尾政輝
電子情報通信学会論文誌 J85-D-I ( 2 ) 143 - 151 2002.02
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Prediction-Preserving Reducibility with Membership Queries on Formal Languages Reviewed
Kouichi HIRATA,Hiroshi SAKAMOTO (Kyushu Univ.)
Proceedings of the 13th International Symposium on Fundamentals of Computation Theory (Lecture Notes in Computer Science 2138) 172 - 183 2001.08
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Second-Order Schema Matching Based on Projection Point Labeling Reviewed
Keizo YAMADA,Koichi HIRATA,Masateru HARAO
Proceedings of the 15th International Workshop on Unification 49 - 53 2001.06
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On the Hardness of Learning Acyclic Conjunctive Queries Reviewed
Proceedings of the 11th International Conference on Algorithmic Learning Theory (Lecture Notes in Artificial Intelligence 1968) 238 - 251 2000.12
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A Constructive Learning of Context-Free Languages with a Subpansive Tree Reviewed
Noriko Sugimoto,Takashi Toyoshima,Shinichi Shimozono,Kouichi Hirata
Proc. 5th International Colloquium on Grammatical Inference (Lecture Notes in Artificial Intelligence 1891) 270 - 283 2000.09
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Flattening and Implication Reviewed
Proceedings of the 10th International Conference on Algorithmic Learning Theory (Lecture Notes in Artificial Intelligence 1720) 157 - 168 1999.12
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Tractable and Intractable Second-Order Matching Problems Reviewed
Kouichi Hirata,Keizo Yamada,Masateru Harao
Proceedings of the 5th Annual International Computing and Combinatorics Conference (Lecture Notes in Computer Science 1627) 432 - 441 1999.07
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Efficient Second-Order Predicate Schema Matching Algorithm Reviewed
Masateru Harao,Keizo Yamada,Kouichi Hirata
Proc. Korea-Japan Joint Workshop on Algorithms and Computation 31 - 39 1999.07
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一階論理式の学習と帰納論理プログラミング Reviewed
有村博紀,平田耕一
人工知能学会誌 14 ( 5 ) 790 - 799 1999.04
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スキーママッチングとその計算量 Reviewed
山田敬三,平田耕一,原尾政輝
電子情報通信学会論文誌 J82-D-I ( 11 ) 1307 - 1316 1999.04
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On the Hardness of Approximating the Minimum Consistent Acyclic DFA and Decision Diagram Reviewed
Shinichi Shimozono,Kouichi Hirata,Ayumi Shinohara
Information Processing Letters 66 ( 4 ) 165 - 170 1998.05
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Constructing Simply Recursive Programs from a Finite Set of Good Examples Reviewed
Information Processing Letters 64 225 - 230 1997.12
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型付ラムダ計算における証明文法 Reviewed
山田敬三,平田耕一,原尾政輝
電子情報通信学会論文誌 J80-D-I ( 11 ) 866 - 879 1997.04
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Constructive Learning of Translations Based on Dictionaries Reviewed
Noriko Sugimoto,Kouichi Hirata,Hiroki Ishizaka
Proc. 7th International Workshop on Algorithmic Learning Theory (ALT'96), Lecture Notes in Artificial Intelligence 1160 1996.10
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On the Hardness of Approximating the Minimum Consistent OBDD Problems Reviewed
Kouichi Hirata,Shinichi Shimozono,Ayumi Shinohara
Proc. 5th Scandinavian Workshop on Algorithm Theory (SWAT'96), Lecture Notes in Computer Science 1097 1996.08
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Rule-Generating Abduction for Recursive Prolog Reviewed
Informatica 20 ( 1 ) 43 - 55 1996.04
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A Classification of Abduction: Abduction for Logic Programming Reviewed
Machine Intelligence 14 297 - 424 1995.04
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Rule-Generating Abduction for Recursive Prolog Reviewed
Proc. 4th Internaitonal Workshop on Analogical and Inductive Inference (AII'94), Lecture Notes in Artificial Intelligence 872 1994.10
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Stable Model Semantics of Circumscription Reviewed
Bulletin of Informatics and Cybernetics 26 ( 1-2 ) 1994.04
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On Russian Propositions Reviewed
Bulletin of Informatics and Cybernetics 25 ( 1-2 ) 1992.04