Finding Concepts with Unexpected Multi-Label Objects Based on Shared Subspace Method - Hongjie Zhai; Makoto Haraguchi; Yoshiaki Okubo; HeYu Liu (Proceedings of the Fourteenth International Conference on Concept Lattices and Their Applications, CLA 2018, Olomouc, Czech Republic, June 12-14, 2018, 2018)

Finding Concepts of Music Objects with Unexpected Multi-labels Based on Shared Subspace Method - Makoto Haraguchi; Yoshiaki Okubo (7th International Congress on Advanced Applied Informatics, IIAI-AAI 2018, Yonago, Japan, July 8-13, 2018, 2018)

Mining Frequent Closed Set Distinguishing One Dataset from Another from a Viewpoint of Structural Index - Yoshiaki Okubo; Makoto Haraguchi (Machine Learning and Data Mining in Pattern Recognition - 13th International Conference, MLDM 2017, New York, NY, USA, July 15-20, 2017, Proceedings, 2017)

A fast and complete algorithm for enumerating pseudo-cliques in large graphs - Hongjie Zhai; Makoto Haraguchi; Yoshiaki Okubo; Etsuji Tomita (Int. J. Data Sci. Anal., 2016)

Enumerating Maximal Isolated Cliques Based on Vertex-Dependent Connection Lower Bound - Yoshiaki Okubo; Makoto Haraguchi; Etsuji Tomita (Machine Learning and Data Mining in Pattern Recognition - 12th International Conference, MLDM 2016, New York, NY, USA, July 16-21, 2016, Proceedings, 2016)

A Fast and Complete Enumeration of Pseudo-Cliques for Large Graphs - Hongjie Zhai; Makoto Haraguchi; Yoshiaki Okubo; Etsuji Tomita (Advances in Knowledge Discovery and Data Mining - 20th Pacific-Asia Conference, PAKDD 2016, Auckland, New Zealand, April 19-22, 2016, Proceedings, Part I, 2016)

Enumerating Maximal Clique Sets with Pseudo-Clique Constraint - Hongjie Zhai; Makoto Haraguchi; Yoshiaki Okubo; Etsuji Tomita (Discovery Science - 18th International Conference, DS 2015, Banff, AB, Canada, October 4-6, 2015, Proceedings, 2015)

Detecting Maximum k-Plex with Iterative Proper \(l\)-Plex Search - Yoshiaki Okubo; Masanobu Matsudaira; Makoto Haraguchi (Discovery Science - 17th International Conference, DS 2014, Bled, Slovenia, October 8-10, 2014. Proceedings, 2014)

Relational Change Pattern Mining Based on Modularity Difference - Yoshiaki Okubo; Makoto Haraguchi; Etsuji Tomita (Multi-disciplinary Trends in Artificial Intelligence - 7th International Workshop, MIWAI 2013, Krabi, Thailand, December 9-11, 2013. Proceedings, 2013)

Shifting Concepts to Their Associative Concepts via Bridges - Hongjie Zhai; Makoto Haraguchi; Yoshiaki Okubo; Kiyota Hashimoto; Sachio Hirokawa (Machine Learning and Data Mining in Pattern Recognition - 9th International Conference, MLDM 2013, New York, NY, USA, July 19-25, 2013. Proceedings, 2013)

Contrasting Correlations by an Efficient Double-Clique Condition - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo (Trans. Mach. Learn. Data Min., 2012)

Structural Change Pattern Mining Based on Constrained Maximal k-Plex Search - Yoshiaki Okubo; Makoto Haraguchi; Etsuji Tomita (Discovery Science - 15th International Conference, DS 2012, Lyon, France, October 29-31, 2012. Proceedings, 2012)

Finding Top-N Colossal Patterns Based on Clique Search with Dynamic Update of Graph - Yoshiaki Okubo; Makoto Haraguchi (Formal Concept Analysis - 10th International Conference, ICFCA 2012, Leuven, Belgium, May 7-10, 2012. Proceedings, 2012)

Finding What Changes for Two Graphs Constructed from Different Time Intervals - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo; Etsuji Tomita (IIAI International Conference on Advanced Applied Informatics, IIAI-AAI 2012, Fukuoka, Japan, September 20-22, 2012, 2012)

Top-N Minimization Approach for Indicative Correlation Change Mining - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo (Machine Learning and Data Mining in Pattern Recognition - 8th International Conference, MLDM 2012, Berlin, Germany, July 13-20, 2012. Proceedings, 2012)

Finding Top-N Chance Patterns with KeyGraph ^{\tiny \textregistered} -Based Importance - Yoshiaki Okubo; Makoto Haraguchi; Sachio Hirokawa (Knowlege-Based and Intelligent Information and Engineering Systems - 15th International Conference, KES 2011, Kaiserslautern, Germany, September 12-14, 2011, Proceedings, Part II, 2011)

Contrasting Correlations by an Efficient Double-Clique Condition - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo (Machine Learning and Data Mining in Pattern Recognition - 7th International Conference, MLDM 2011, New York, NY, USA, August 30 - September 3, 2011. Proceedings, 2011)

Finding Rare Patterns with Weak Correlation Constraint - Yoshiaki Okubo; Makoto Haraguchi; Takeshi Nakajima (ICDMW 2010, The 10th IEEE International Conference on Data Mining Workshops, Sydney, Australia, 13 December 2010, 2010)

An Algorithm for Extracting Rare Concepts with Concise Intents - Yoshiaki Okubo; Makoto Haraguchi (Formal Concept Analysis, 8th International Conference, ICFCA 2010, Agadir, Morocco, March 15-18, 2010. Proceedings, 2010)

Finding Top-N Pseudo Formal Concepts with Core Intents - Yoshiaki Okubo; Makoto Haraguchi (Machine Learning and Data Mining in Pattern Recognition, 6th International Conference, MLDM 2009, Leipzig, Germany, July 23-25, 2009. Proceedings, 2009)

Implicit Groups of Web Pages as Constrained Top N Concepts - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo (Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and International Conference on Intelligent Agent Technology - Workshops, 9-12 December 2008, Sydney, NSW, Australia, 2008)

Data Mining of Time-Series Medical Data by Formal Concept Analysis - Kenji Sato; Yoshiaki Okubo; Makoto Haraguchi; Susumu Kunifuji (Knowledge-Based Intelligent Information and Engineering Systems, 11th International Conference, KES 2007, XVII Italian Workshop on Neural Networks, Vietri sul Mare, Italy, September 12-14, 2007. Proceedings, Part II, 2007)

An Extended Branch and Bound Search Algorithm for Finding Top- N Formal Concepts of Documents - Makoto Haraguchi; Yoshiaki Okubo (New Frontiers in Artificial Intelligence, JSAI 2006 Conference and Workshops, Tokyo, Japan, June 5-9 2006, Revised Selected Papers, 2006)

Finding Conceptual Document Clusters with Improved Top-N Formal Concept Search - Yoshiaki Okubo; Makoto Haraguchi (2006 IEEE / WIC / ACM International Conference on Web Intelligence (WI 2006), 18-22 December 2006, Hong Kong, China, 2006)

A Method for Pinpoint Clustering of Web Pages with Pseudo-Clique Search - Makoto Haraguchi; Yoshiaki Okubo (Federation over the Web - International Workshop, Dagstuhl Castle, Germany, May 1-6, 2005. Revised Selected Papers, 2005)

Finding Significant Web Pages with Lower Ranks by Pseudo-Clique Search - Yoshiaki Okubo; Makoto Haraguchi; Bin Shi (Discovery Science, 8th International Conference, DS 2005, Singapore, October 8-11, 2005, Proceedings, 2005)

Discovery of Hidden Correlations in a Local Transaction Database Based on Differences of Correlations - Tsuyoshi Taniguchi; Makoto Haraguchi; Yoshiaki Okubo (Machine Learning and Data Mining in Pattern Recognition, 4th International Conference, MLDM 2005, Leipzig, Germany, July 9-11, 2005, Proceedings, 2005)

Data abstractions for decision tree induction - Yoshimitsu Kudoh; Makoto Haraguchi; Yoshiaki Okubo (Theor. Comput. Sci., 2003)

Creating Abstract Concepts for Classification by Finding Top- N Maximal Weighted Cliques - Yoshiaki Okubo; Makoto Haraguchi (Discovery Science, 6th International Conference, DS 2003, Sapporo, Japan, October 17-19,2003, Proceedings, 2003)

Data Abstractions for Numerical Attributes in Data Mining - Masaaki Narita; Makoto Haraguchi; Yoshiaki Okubo (Intelligent Data Engineering and Automated Learning - IDEAL 2002, Third International Conference, Manchester, UK, August 12-14, Proceedings, 2002)

Learning Semi-Lattice Codebooks for Image Compression - Yoshiaki Okubo; Xiaobo Li (Abstraction, Reformulation and Approximation, 5th International Symposium, SARA 2002, Kananaskis, Alberta, Canada, August 2-4, 2002, Proceedings, 2002)

Constructing Approximate Informative Basis of Association Rules - Kouta Kanda; Makoto Haraguchi; Yoshiaki Okubo (Discovery Science, 4th International Conference, DS 2001, Washington, DC, USA, November 25-28, 2001, Proceedings, 2001)

Constructing Appropriate Data Abstractions for Mining Classification Knowledge - Yoshiaki Okubo; Yoshimitsu Kudoh; Makoto Haraguchi (Proceedings of the 14th International Conference on Applications of Prolog, INAP 2001, University of Tokyo, Tokyo, Japan, October 20-22, 2001, 2001)

Constructing Appropriate Data Abstractions for Mining Classification Knowledge - Yoshiaki Okubo; Yoshimitsu Kudoh; Makoto Haraguchi (Web Knowledge Management and Decision Support, 14th International Conference on Applications of Prolog, INAP 2001, Tokyo, Japan, October 20-22, 2001, Revised Papers, 2001)

A Logical Foundation of Metaphoric Search Based on Abstraction Approach - Makoto Haraguchi; Yoshiaki Okubo; Tokuyasu Kakuta (Electron. Trans. Artif. Intell., 2000)

A Method for Finding Consistent Hypotheses Using Abstraction - Yoshiaki Okubo; Makoto Haraguchi; Yan Fang Zheng (Abstraction, Reformulation, and Approximation, 4th International Symposium, SARA 2000, Horseshoe Bay, Texas, USA, July 26-29, 2000, Proceedings, 2000)

A Method of Similarity-Driven Knowledge Revision for Type Specializations - Nobuhiro Morita; Makoto Haraguchi; Yoshiaki Okubo (Algorithmic Learning Theory, 10th International Conference, ALT '99, Tokyo, Japan, December 6-8, 1999, Proceedings, 1999)

Constructing Predicate Mappings for Goal-Dependent Abstraction - Yoshiaki Okubo; Makoto Haraguchi (Ann. Math. Artif. Intell., 1998)

A Goal-Dependent Abstraction for Legal Reasoning by Analogy - Tokuyasu Kakuta; Makoto Haraguchi; Yoshiaki Okubo (Artif. Intell. Law, 1997)

Attacking Legal Argument by Pointing Out the Incoherence of Interpretation of Statute - Yoshiaki Okubo; Makoto Haraguchi (J. Adv. Comput. Intell. Intell. Informatics, 1997)

Attacking Legal Argument by Examining Stability of Case Citation with Goal-Dependent Abstraction - Yoshiaki Okubo; Makoto Haraguchi (Proceedings of the Sixth International Conference on Artificial Intelligence and Law, ICAIL '97, Melbourne, Vicoria, Australia, June 30 - July 3, 1997, 1997)

Planning with Abstraction Based on Partial Predicate Mappings - Yoshiaki Okubo; Makoto Haraguchi (New Gener. Comput., 1994)

Constructing Predicate Mappings for Goal-Dependent Abstraction - Yoshiaki Okubo; Makoto Haraguchi (Algorithmic Learning Theory, 4th International Workshop on Analogical and Inductive Inference, AII '94, 5th International Workshop on Algorithmic Learning Theory, ALT '94, Reinhardsbrunn Castle, Germany, October 10-15, 1994, Proceedings, 1994)

Planning with Abstraction Based on Partial Predicate Mappings - Yoshiaki Okubo; Makoto Haraguchi (Algorithmic Learning Theory, Third Workshop, ALT '92, Tokyo, Japan, October 20-22, 1992, Proceedings, 1992)