Journal Papers

  1. Alexandre Termier, Marie-Christine Rousset, Mich?le Sebag, Kouzou Ohara, Takashi Washio, and Hiroshi Motoda: "DryadeParent, an Efficient and Robust Closed Attribute Tree Mining Algorithm", IEEE transactions on Knowledge and Data Engineering, Vol.20, No.3, pp.300-320 (2008-03).

  2. Noboru Babaguchi, Kouzou Ohara and Tekehiro Ogura: "Learning Personal Preference from Viewer's Operations for Browsing and its Application to Baseball Video Retrieval and Summarization", IEEE transactions on Multimedia, Vol.9, No.5, pp.1016-1025 (2007-08).

  3. Warodom Geamsakul, Tetsuya Yoshida, Kouzou Ohara, Hiroshi Motoda, Hideto Yokoi and Katsuhiko Takabayashi: "Constructing a Decision Tree for Graph-Structured Data and its Applications", Fundamenta Informaticae, IOS Press Vol.66, No.1-2, pp.131--160(2005).

  4. Kouichi Katsurada, Makoto, Koyama, Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi, "Modification of Document Classification Rules based on Misclassification", Transactions of Information Processing Society of Japan, Vol.43, No.6, pp.1880-1889(2002). (in Japanese)

  5. Kouzou Ohara, Hideyuki Taka, Noboru Babaguchi and Tadahiro Kitahashi, "Learning System for Default Rules Capable of Dynamically Determining Generality of Target Concept in a Class Hierarchy", Transactions of Japanese Society for Artificial Intelligence, Vol.17, No.2, pp.153-161(2002). (in Japanese)

  6. Yu Morinaka, Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi, "Acquiring Relations between Two Classes Based on Dissimilarity between Instances", Transactions of Information Processing Society of Japan, Vol.41, No.11, pp.3193-3196(2000). (in Japanese)

  7. Yu Morinaka, Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi, "Knowledge Acquisition in Databases by Generating Negative Instances Based on Similarity between Instances in Database", Journal of Japanese Society for Artificial Intelligence, Vol.15, No.5, pp.862-870(2000). (in Japanese)

  8. Kouichi Katsurada, Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi, "Knowledge-Base Reconstruction by Means of Changing the Viewpoint of Exceptions within Incomplete Knowledge", Journal of Japanese Society for Artificial Intelligence, Vol.14, No.3, pp.485-494(1999). (in Japanese)

  9. Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi: "Relational Algebraic Representation for Query Procedure in Advanced Logical DataBase Handling Incomplete Knowledge", Transactions of Information Processing Society of Japan, Vol.36, No.6, pp.1433-1440(1995). (in Japanese)

International Conference/Workshop (Reviewed)

  1. Kiyoto Takabayashi, Phu Chien Nguyen, Kouzou Ohara, Hiroshi Motoda and Takashi Washio: "Mining Discriminative Patterns from Graph Structured Data with Constrained Search", Proceedings of Mining and Learning with Graphs (MLG 2006), Workshop held in conjunction with the 17th European Conference on Machine Learning and the 10th European Conference on Principles and Practice of Knowledge Discovery in Databases (ECML/PKDD 2006), Berlin, Germany, pp.205--212 (2006-9).

  2. Kiyoto Takabayashi, Phu Chien Nguyen, Kouzou Ohara, Hiroshi Motoda and Takashi Washio: "Extracting Discriminative Patterns from Graph Structured Data using Constrained Search", Proceedings of the 2006 Pacific Rim Knowledge Acquisition Workshop (PKAW 2006) , Workshop held in conjunction with the 9th Pacific Rim International Conference on Artificial Intelligence (PRICAI 2006), Guilin, China, pp.62--72 (2006-8).

  3. Phu Chien Nguyen, Kouzou Ohara, Akira Mogi, Hiroshi Motoda and Takashi Washio: "Constructing Decision Trees for Graph-Structured Data by Chunkingless Graph-Based Induction", Proceedings of the 10th Pacific-Asia Conference on Advances in Knowledge Discovery and Data Mining (PAKDD 2006), Singapore, pp.390--399 (2006).

  4. Alexandre Termier, Marie-Christine Rousset, Michele Sebag, Kouzou Ohara, Takashi Washio and Hiroshi Motoda: "Efficient Mining of High Branching Factor Attribute Trees", Proceedings of the 5th IEEE International Conference on Data Mining (ICDM '05), Houston, U.S.A, pp.785--788 (2005).

  5. Phu Chien Nguyen, Kouzou Ohara, Akira Mogi, Hiroshi Motoda and Takashi Washio: "Decision Tree Construction by Chunkingless Graph-Based Induction for Graph-Structured Data", Proceedings of the First International Workshop on Mining Complex Data (MCD '05), Workshop in conjunction with the 5th IEEE International Conference on Data Mining (ICDM '05), Houston, U.S.A, pp.65--72 (2005).

  6. Alexandre Termier, Marie-Christine Rousset, Michele Sebag, Kouzou Ohara, Takashi Washio and Hiroshi Motoda: "Computation-time efficient and robust attribute tree mining with DryadeParent", Proceedings of the 3rd International Workshop on Mining Graphs, Trees and Sequences (MGTS2005), Workshop held in conjunction with the 16th European Conference on Machine Learning and the 9th European Conference on Principles and Practice of Knowledge Discovery in Databases (ECML/PKDD 2005), Porto, Portugal, pp.63--76 (2005-10).

  7. Phu Chien Nguyen, Kouzou Ohara, Hiroshi Motoda and Takashi Washio: "Cl-GBI: A Novel Approach for Extracting Typical Patterns from Graph-Structured Data", Proceedings of the 9th Pacific-Asia Conference on Advances in Knowledge Discovery and Data Mining (PAKDD 2005), Hanoi, Vietnam, Lecture Notes in Artificial Intelligence, Vol. 3518, Springer-Verlag, pp.639--649 (2005-5).

  8. Kouzou Ohara, Yukio Onishi, Noboru Babaguchi and Hiroshi Motoda: "Constructive Inductive Learning based on Meta-Attributes", Proceedings of the 7th International Conference on Discovery Science (DS2004), Padova, Italy, pp.142-154 (2004-10).

  9. Phu Chien Nguyen, Takashi Washio, Kouzou Ohara and Hiroshi Motoda: "Using a Hash-based Method for Apriori-based Graph Mining", Proceedings of the 8th European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD 2005), Pisa, pp.349-361 (2004-9).

  10. Kouzou Ohara, Tetsuya Yoshida, Warodom Geamsakul, Hiroshi Motoda, Takashi Washio, Hideto Yokoi and Katsuhiko Takabayashi: "Analysis of Hepatitis Dataset by Decision Tree Graph-Based Induction", Proceedings of Discovery Challenge, Workshop held in conjunction with the 15th European Conference on Machine Learning and and the 8th European Conference on Principles and Practice of Knowledge Discovery in Databases (ECML/PKDD 2004) , Pisa, pp.173-184 (2004-9).

  11. Hiroshi Motoda, Tetsuya Yoshida, Kouzou Ohara, Warodom Geamsakul, Takashi Washio, Hideto Yokoi and Katsuhiko Takabayashi: "Application of DT-GBI to Promoter and Hepatitis Datasets", Proceedings of the Knowledge Discovery in BioMedicine (KDbM-04), Auckland, pp.10-40 (2004-8).

  12. Tetsuya Yoshida, Warodom Geamsakul, Akira Mogi, Kouzou Ohara, Hiroshi Motoda, Takashi Washio, Hideto Yokoi and Katsuhiko Takabayashi: "Preliminary Analysis of Interferon Therapy by Graph-Based Induction", Proceedings of the Third International Workshop on Active Mining (AM-2004), Kanazawa, Japan, pp.31-40 (2004-6).

  13. Noboru Babaguchi, Kouzou Ohara, and Takehiro Ogura: "Effect of Personalization on Retrieval and Summarization of Sports Video", Proceedings of Fourth International Conference on Information, Communications & Signal Processing/Fourth IEEE Pacific-Rim Conference On Multimedia (ICICS-PCM03), Singapore, pp.15-18(2004-12).

  14. Warodom Geamsakul, Tetsuya Yoshida, Kouzou Ohara, Hiroshi Motoda, and Takashi Washio: "Extracting Diagnostic Knowledge from Hepatitis Dataset by Decision Tree Graph-Based Induction", Working notes of the 2nd International Workshop on Active Mining (AM2003), pp.106-117(2003-11).

  15. Kouzou Ohara, Takehiro Ogura, and Noboru Babaguchi: On Personalizing Video Portal System with Metadata, Proceedings of 7th International Conference on Knowledge-Based Intelligent Information and Engineering Systems (KES2003), Oxford, UK, pp.1062-1069(2003-9).

  16. Kouzou Ohara, Hideyuki Taka, Noboru Babaguchi and Tadahiro Kitahashi: Determination of General Concept in Learning Default Rules, Proceedings of Sixth Pacific Rim International Conference on Artificial Intelligence (PRICAI 2000), Melbourne, pp.104-114(2000-08).

  17. Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi: An Efficient Hypothesis Search Algorithm based on Best-Bound Strategy, Work-in-Progress Reports of 10th International Conference on Inductive Logic Programming(ILP2000), London, pp.212-225(2000-07)D(Poster Session)

  18. Kouichi Katsurada, Kouzou Ohara, Noboru Babaguchi, and Tadahiro Kitahashi: On Operations for Reconstructing the Complete/Incomplete Knowledge, Proc. of The 10th European-Japanese Conference on Information Modeling and Knowledge Bases, pp.41--51(2000).

  19. Kouichi Katsurada, Makoto Koyama, Kouzou Ohara, Noboru Babaguchi, and Tadahiro Kitahashi: Converting Ordinary Rules into Default Rules Based on Contradiction of Knowledge Base, Proc. of The 10th European-Japanese Conference on Information Modeling and Knowledge Bases, pp.248--258(2000).

  20. Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi: Non-monotonic Inference System Handling Knowledge Allowing Classified Exceptions, Proc. of IEEE ICSMC'98, pp.1558--1563(1998).

  21. Kouichi Katsurada, Makoto Koyama, Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi: Solving Contradiction in Knowledge-Base without Interaction, Proc. of IEEE ICSMC'98, pp.1546--1551(1998).

  22. Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi: On Formation of Exception Hierarchy, Proc. of PRICAI'96, pp.534--545(1996).

  23. Kouzou Ohara, Noboru Babaguchi and Tadahiro Kitahashi: A Query Procedure for Allowing Exceptions in Advanced Logical Database, Proc. of IEA/AIE-96, pp.127-132(1996).

Book Chapter

  1. Warodom Geamsakul, Takashi Matsuda, Tetsuya Yoshida, Kouzou Ohara, Hiroshi Motoda, Takashi Washio, Hideto Yokoi, and Katsuhiko Takabayashi: "Analysis of Hepatitis Dataset by Decision Tree Based on Graph-Based Induction", New Frontiers in Artificial Intelligence, JSAI 2003 and JSAI 2004 Conferences and Workshops, Niigata, Japan, June 23-27, 2003 and Kanazawa, Japan, May 31 - June 4, 2004, Revised Selected Papers, LNAI 3609, Springer-Verlag, pp.5-28(2007-04)

  2. Kiyoto Takabayashi, Phu Chien Nguyen, Kouzou Ohara, Hiroshi Motoda and Takashi Washio: "Extracting Discriminative Patterns from Graph Structured Data using Constrained Search", Advances in Knowledge Acquisition and Management, Pacific Rim Knowledge Acquisition Workshop, PKAW 2006, Guilin, China, Augsut 2006, Revised Selected Papers, LNAI 4303, Springer, pp.64--74 (2007-1).

  3. Kouzou Ohara, Phu Chien Nguyen, Akira Mogi, Hiroshi Motoda and Takashi Washio: "Constructing Decision Trees Based On Chunkingless Graph-Based Induction", L. B. Holder and D. J. Cook, (Eds.), Mining Graph Data, Wiley-Interscience, pp.203--226(2006-12).

  4. Warodom Geamsakul, Tetsuya Yoshida, Kouzou Ohara, Hiroshi Motoda, Takashi Washio, Hideto Yokoi and Katsuhiko Takabayashi:"Extracting Diagnostic Knowledge from Hepatitis Dataset by Decision Tree Graph-Based Induction", S. Tsumoto, T. Yamaguchi, M. Numao and H. Motoda (Ed.), Active Mining: Second International Workshop, AM 2003, Maebashi, Japan, October 2003. Revised Selected Papers, Lecture Notes in Computer Science, Volume 3430, Springer-Verlag, pp.126-151 (2005-05)

  5. Warodom Geamsakul, Tetsuya Yoshida, Kouzou Ohara, Hiroshi Motoda, Hideto Yokoi and Katsuhiko Takabayashi: "Constructing a Decision Tree for Graph-Structured Data and its Applications", T. Washio, L. De Raedt and J. N. Knok (Eds.), Advances in Mining Graphs, Trees and Sequences, IOS Press., pp.131-160 (2005).