Dennis Groth Dennis maintains an interest in martial arts as well as informatics. Assistant Professor of Informatics Email:    dgroth@indiana.edu Phone:    (812) 855-5886 Office:    Informatics Building 301 Research Interests Database visualization, data mining, and human computer interaction Education Ph.D. in computer science from Indiana University in 2002 Current Research Interests Information visualization for databases Database query formulation and processing Human Computer Interaction Data Mining Technology Education Information modeling Projects Query Structure Visualization - This project develops visualizations of the structure of queries - not the data returned by the queries. Through this work we seek to develop a better understanding of data through the questions that are asked of the data. Mobile Visualization of Data - Annotation Project Information This project couples the generation of visualizations with mobile devices that enable groups of users to collaborate.  We are developing a framework for group annotation of visualizations using new interaction mechanisms with, in particular, tablet PC's.  Supporting the determination of fair-use of copyrighted material The focus of this project is to explore copyright law and fair-use while observing the methods taken by researchers to determine if their work is in accordance with fair-use.- Fair-Use Project Information Publications The documents distributed here have been provided as a means to ensure timely dissemination of scholarly and technical work on a noncommercial basis (see Open Access Initiative). Copyright and all rights therein are maintained by the publishers and/or the authors, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. Many electronic versions are draft preprints of published papers; the published versions should be considered definitive. Journals and Edited Collections Paul W. Purdom, Dirk Van Gucht and Dennis P. Groth, Average Case Performance of the Apriori Algorithm, SIAM Journal of Computing, Volume 33, Number 5, 2004. Dennis P. Groth, Edward L. Robertson: Discovering Frequent Itemsets in the Presence of Highly Frequent Items, Web-Knowledge Management and Decision Support - Selected Papers from the 14th International Conference on Applications of Prolog, Edited by Bartenstein, Geske, Hannebauer and Yoshie, Springer Verlag, Lecture Notes in Artificial Intelligence, No. 2543, 2003. PDF Refereed Conference and Workshop Papers Dennis P. Groth: Information Provenance and the Knowledge Rediscovery Problem, The 8th International Conference on Information Visualization, London, England, July, 2004. Sean E. Ellis and Dennis P. Groth: A Collaborative Annotation System for Data Visualization, ACM Conference on Advanced Visual Interfaces, Gallipoli, Italy, May, 2004. Dennis P. Groth: An Evaluation of a Rule-Based Language for Classification Queries, The 15th International Conference on Applications of Declarative Programming, Berlin, Germany, March, 2004. Dennis P. Groth: Visual Representation of Database Queries using Structural Similarity, The Seventh International Conference on Information Visualization, London, England, July, 2003. PDF Dennis P. Groth: Visualizing Query Structure, Proceedings of the 18th ISCA International Conference on Computers and Their Applications (CATA), Honolulu, HI, March, 2003. PDF Dennis P. Groth, Edward L. Robertson: An Integrated System for Database Visualization, The Sixth International Conference on Information Visualization, London, England, July, 2002. PDF Chris M. Giannella, Mehmet M. Dalkilic, Dennis P. Groth, Edward L. Robertson: Improving Query Evaluation with Approximate Functional Dependency Based Decompositions, Proceedings of the 19th British National Conference on Databases (BNCOD2002), July, 2002.  PDF Dennis P. Groth, Edward L. Robertson: An Entropy-Based Approach to Visualizing Database Structure, The Sixth IFIP Working Conference on Visual Database Systems (VDB6), May, 2002. PDF Dennis P. Groth, Edward L. Robertson: Discovering Frequent Itemsets in the Presence of Highly Frequent Items, Rule Based Data Mining 2001. PDF Dennis P. Groth, Edward L. Robertson: It's All About Process: Project-Oriented Teaching of Software Engineering, 14th Conference on Software Engineering Education and Training (CSEE&T), February, 2001. PDF Dennis P. Groth, Edward L. Robertson: Architectural Support for Database Visualization, New Paradigms for Information Visualization and Manipulation, November, 1998. PDF Short Papers/Posters Dennis P. Groth and Benjamin W. Murphy: Tracking User Interactions Within Visualizations, IEEE Symposium on Information Visualization, Austin, Texas, October, 2004. PDF Leah Sandvoss and Dennis P. Groth: Report Generator and Analysis Tool for Reciprocal Net Crystallographers, 226th American Chemical Society National Meeting, New York, NY, September, 2003. Leah Sandvoss and Dennis P. Groth: An Informatics Tool for Crystallography Administrators, 15th International Conference on Scientific and Statistical Databases (SSDBM), Cambridge, MA, July, 2003. PDF Dennis P. Groth, Edward L. Robertson: An Integrated Approach to Database Visualization, Advanced Visual Interfaces 2002, May, 2002. PDF Technical Reports Paul W. Purdom, Dirk Van Gucht and Dennis P. Groth: Average Case Analysis of the Apriori Algorithm, Indiana University Computer Science, Technical Report 529, February, 2003. PDF Dennis P. Groth: Architectural Support for Database Visualization, Indiana University Computer Science, Technical Report 561, May, 2002. [Ph.D. Thesis] PDF Chris M. Giannella, Mehmet M. Dalkilic, Dennis P. Groth, Edward L. Robertson: Using Horizontal-Vertical Decompositions to Improve Query Evaluation, Indiana University Computer Science, Technical Report 558, February, 2002. PDF Dennis P. Groth, Edward L. Robertson: It's All About Process: Project-Oriented Teaching of Software Engineering, Indiana University Computer Science, Technical Report 532, November, 1999. PDF Miscellaneous Dennis P. Groth, Arijit Sengupta: Introduction to Database Applications: A problem-solving approach, McGraw-Hill, 1998.