Wingyan Chunga, Hsinchun Chenb, Weiping Changc, Shihchieh Chou (2004). "Fighting cybercrime: a review and the Taiwan experience" Decision Support Systems.

Wingyan Chunga, Hsinchun Chenb, Luis G. Chaboyab, Christopher D. O’Tooleb, Homa Atabakhsh (2004). "Evaluating event visualization: a usability study of COPLINK spatio-temporal visualizer" Int. J. Human-Computer Studies.

Xu, J. and H. Chen (2004). "Fighting organized crime: Using shortest-path algorithms to identify associations in criminal networks." Decision Support Systems 38(3): 473-487.

Gondy Leroy, Hsinchun Chen, "Genescene: An Ontology-enhanced Integration of Linguistic and Co-occurrence based Relations in Biomedical Texts" Forthcoming 2005 - JASIST - Special Issue on Bioinformatics.

B.Marshall, D. McDonald, H. Chen, and Wingyan Chung, "EBizPort: Collecting and Analyzing Business Intelligence Information" Journal of the American Society for Information Science and Technology (JASIST), Special Issue on Document Search Interface Design for Large-scale Collections and Intelligent Access, (2004), Volume 55, Issue 10, (2004), 873-891

W.Chung, Y. Zhang, Z.Huang, G.Wang, T. Ong, and H. Chen "Internet searching and browsing in a multilingual world: An experiment on the Chinese Business Intelligence Portal (CBizPort)" Journal of the American Society for Information Science and Technology (JASIST), Special Issue on Information Seeking, Volume 55, Issue 9, (2004), 818-831

Gang Wang, Hsinchun, and Homa Atabakhsh, " Automatically Detecting Deceptive Criminal Identities" Communications of the ACM, March 2004/Vol. 47, No. 3, Pages 71-76.

Zan Huang, Hsinchun Chen, and Daniel Zeng, " Applying Associative Retrieval Techniques to Alleviate the Sparsity Problem in Collaborative Filtering," ACM Transactions on Information Systems, Vol. 22, No. 1, January 2004, Pages 116–142.

Zan Huang, Winayan Chung, and Hsinchun Chen, " A Graph Model for E-Commerce Recommender Systems," Journal of the Amercian Society for Information Science and Technology, page 260-274, (2004)

Z. Huang, H. Chen, A. Yip, G. Ng, F. Guo, Z.-K. Chen and M. C. Roco, "Longitudinal Patent Analysis for Nanoscale Science and Engineering: Country, Institution and Technology Field," Journal of Nanoparticale Research (JNR), 5, 333-363, (2003).

Hsinchun Chen, Haiyan Fan, Michael Chau, Daniel Zeng “Testing a Cancer Meta Spider,” International Journal of Human-computer Studies, 2003.

G. Leroy, H. Chen, and J.D. Martinez “A Shallow Parser Based on Closed-class Words to Capture Relations in Biomedical Text,” Journal of Biomedical Informatics (JBI), vol. 36, pp 145-158, June 2003.

G. Leroy, A.M. Lally, and H. Chen “The Use of Dynamic Contexts to Improve Casual Internet Searching,” ACM-TOIS, Pages: 229 - 253, Volume 21, Issue 3, July 2003.

M. Chau and H. Chen, “Comparison of Three Vertical Search Spiders,” Computer, pages 56-62, Volume 36, Number 5, May 2003.

H. Chen, “Introduction to the JASIST Special Topic Section on Web Retrieval and Mining: A Machine Learning Perspective,” Journal of the American Society for Information Science and Technology (JASIST), pages 621-624, Volume 54, Issue 7, May 2003.

H. Chen, A. Lally, B. Zhu and M. Chau “HelpfulMed: Intelligent Searching for Medical Information over the Internet,” Journal of the American Society for Information Science and Technology (JASIST), pages 683-694, Volume 54, Issue 7, May 2003.

N. Romano, C. Donovan, H. Chen, and J. Nunamaker “A Methodology for Analyzing Web-Based Qualitative Data,” Journal of Management Information Systems (JMIS), pages 213-246, Volume 19, Number 4, Spring 2003.

H. Chen, “Introduction to the Special Issue: "Web Retrieval and Mining,” Decision Support Systems (DSS), pages 1-5, Volume 35, Number 1, April 2003.

C. Yang, H. Chen and K. Hong “Visualization of large category map for Internet browsing,” Decision Support Systems (DSS), pages 89-102, Volume 35, Number 1, April 2003.

M. Chau, D. Zeng, H. Chen, M. Huang and D. Hendriawan “Design and evaluation of a multi-agent collaborative Web mining system,” Decision Support Systems (DSS), pages 167-183, Volume 35, Number 1, April 2003.

H. Chen, “Introduction to the Special Issue "Digital Government: technologies and practices,” Decision Support Systems (DSS), pages 223-227, Volume 34, Number 3, February 2003.

H. Chen, J. Schroeder, R. Hauck, L. Ridgeway, H. Atabakhsh, H. Gupta, C. Boarman, K. Rasmussen and A. Clements, “COPLINK Connect: information and knowledge management for law enforcement,” Decision Support Systems (DSS), Special Issue "Digital Government: technologies and practices", pages 271-285, Volume 34, Number 3, February 2003.

H. Chen, D. Zeng, H. Atabakhsh, W. Wyzga, and J. Schroeder, “COPLINK Managing Law Enforcement Data and Knowledge,” Communications of the ACM, pages 28-34, Volume 46, Number 1, January 2003.

H. Chen, M. Chau, and D. Zeng, “CI Spider: A Tool for Competitive Intelligence on the Web,” Decision Support Systems (DSS), pages 1-17, Volume 34, Number 1, 2002.

R. Hauck, H. Atabakhsh, P. Onguasith, H. Gupta, H. Chen, “Using Coplink to Analyse Criminal-Justice Data,” IEEE Computer, pages 30-37, Volume 35, March 2002.

H. Chen, D. Roussinov, “Information Navigation on the Web by Clustering and Summarizing Query Results,” Information Processing and Management, Volume 37, Number 6, Pages 789-816, 2001.

H. Chen, H. Fan, M. Chau and D. Zeng, “MetaSpider: Meta-Searching and Categorization on the Web,” Journal of the American Society for Information and Science and Technology, Volume 52, Number 13, Pages 1134-1147, 2001.

R. Hauck, R. Sewell, D.T. Ng, H. Chen, “Concept-based searching and browsing: a geoscience experiment ,” Journal of Information Science, Volume 27, Number 4, Pages 199-210, 2001.

G. Leroy and H. Chen, “Meeting Medical Terminology Needs-The Ontology-Enhanced Medical Concept Mapper,” IEEE Transactions on Information Technology in Biomedicine , Volume 5, Number 4, December 2001.

B. Zhu, M. Ramsey and H. Chen, “Creating a Large-scale Content-based Airphoto Image Digital Library,” IEEE Transactions on Image Processing, Special Issue on Image and Video Processing for Digital Libraries, Volume 9, Number 1, Pages 163-167, January, 2000.

K. Tolle and H. Chen, “Comparing Noun Phrasing Techniques for Use with Medical Digital Library Tools,” Journal of the American Society for Information Science, Special Issue on Digital Libraries, Volume 51, Number 4, Pages 352-370, 2000.

B. Zhu and H. Chen, “Validating a Geographic Image Retrieval System,” Journal of the American Society for Information Science, Volume 51, Number 7, Pages 625-634, 2000.

C. Lin, H. Chen and J. F. Nunamaker, “Verifying the Proximity Hypothesis for Self-Organizing Maps,” Journal of Management Information Systems, Volume 16, Number 3, Pages 57-70, 2000.

A.L. Houston, H. Chen, B. R. Schatz, R. R. Sewell, K. M. Tolle, T. E. Doszkocs, S. M. Hubbard and D. T. Ng, “Exploring the Use of Concept Spaces to Improve Medical Information Retrieval,” Decision Support Systems, Special Issue on Decision Support for Health Care in a New Information Age, Volume 30, Number 2, Pages 171-186, 2000.

K. M. Tolle, H. Chen and H. Chow, “Estimating drug/plasma concentration levels by applying neural networks to pharmacokinetic data sets,” Decision Support Systems, Special Issue on Decision Support for Health Care in a New Information Age, Volume 30, Number 2, Pages 139-152, 2000.

G. Leroy, K. M. Tolle and H. Chen, “Customizable and Ontology-Enhanced Medical Information Retrieval Interfaces,” Methods of Information in Medicine, 2000.

C. C. Yang, J. Yen and H. Chen, “Intelligent Internet Searching Engine based on Hybrid Simulated Annealing,” Decision Support Systems, 2000.

N. C. Romano, C. Bauer, H. Chen and J. F. Nunamaker, “Quantifying Qualitative Data for Electronic Commerce Attitude Assessment and Visualization,” Journal of Management Information Systems, 2000.

B. R. Schatz, W. Mischo, T. Cole, A. Bishop, S. Harum, E. Johnson, L. Neumann, H. Chen, D. T. Ng, “Federated Search of Scientific Literature,” IEEE Computer, Special Issue on Digital Libraries, Volume 32, Number 2, Pages 51-59, February 1999.

B. R. Schatz and H. Chen, “Digital Libraries: Technological Advances and Social Impacts,” IEEE Computer, Special Issue on Digital Libraries, Volume 32, Number 2, Pages 45-50, February 1999.

B. Zhu, M. Ramsey, T. D. Ng, H. Chen and B. R. Schatz, “Creating a Large-Scale Digital Library for Georeferenced Information,” D-Lib Magazine, Volume 5, Number 7/8, July/August 1999.

H. Chen, “Semantic Research for Digital Libraries,” D-Lib Magazine, Volume 5, Number 10/11, October/November 1999.

H. Chen and A. Houston, “Digital Libraries: Social Issues and Technological Advances,” in Advances in Computers, Edited by M. Zelkowitz, Volume 48, Pages 257-314, 1999.

M. Ramsey, H. Chen, B. Zhu and B. R. Schatz, “A Collection of Visual Thesauri for Browsing Large Collections of Geographic Images,” Journal of the American Society for Information Science, Volume 50, Number 9, pages 826-834, 1999.

H. Chen, “From Information Retrieval to Knowledge Management: Enabling Technologies and Best Practices,” Decision Support Systems, Volume 27, Number 1-2, Pages 1-4, November 1999.

D. Roussinov and H. Chen, “Document Clustering for Electronic Meetings: An Experimental Comparison of Two Techniques,” Decision Support Systems, Volume 27, Number 1-2, Pages 67-80, November 1999.

M. McQuaid, T. Ong, H. Chen and J. F. Nunamaker, “Multidimensional Scaling for Group Memory Visualization,” Decision Support Systems, Volume 27, Number 1-2, Pages 163-176, November 1999. 

A.L. Houston, H. Chen, S. M. Hubbard, B. R. Schatz, T. D. Ng, R. R. Sewell and K. M. Tolle, “Medical Data Mining on the Internet: Research on a Cancer Information System,” Artificial Intelligence Review, Volume 13, Pages 437-466, 1999.

H. Chen, G. Shankaranarayanan, A. Iyer, and L. She, “A Machine Learning Approach to Inductive Query by Examples: An Experiment Using Relevance Feedback, ID3, Genetic Algorithms, and Simulated Annealing,” Journal of the American Society for Information Science, Volume 49, Number 8, Pages 693-705, June 1998.

H. Chen, J. Martinez, A. Kirchhoff, T. D. Ng, and B. R. Schatz, “Alleviating Search Uncertainty Through Concept Associations: Automatic Indexing, Co-occurrence Analysis, and Parallel Computing,” Journal of the American Society for Information Science, Special Issue on “Management of Imprecision and Uncertainty in Information Retrieval and Database Management Systems,” Volume 49, Number 3, Pages 206-216, 1998.

H. Chen, “Artificial Intelligence Techniques for Emerging Information Systems Applications: Trailblazing Path to Semantic Interoperability,” Journal of the American Society for Information Science, Volume 49, Number 7, Pages 579-581, 1998.

H. Chen, A. L. Houston, R. R. Sewell and B. R. Schatz, “Internet Browsing and Searching: User Evaluation of Category Map and Concept Space Techniques,” Journal of the American Society for Information Science, Special Issue on AI Techniques for Emerging Information Systems Applications, Volume 49, Number 7, Pages 582-603, 1998.

H. Chen, Y. Chung, M. Ramsey, and C. Yang, “A Smart Itsy Bitsy Spider for the Web,” Journal of the American Society for Information Science, Special Issue on AI Techniques for Emerging Information Systems Applications, Volume 49, Number 7, Pages 604-618, 1998.

D. Roussinov and H. Chen, “A Scalable Self-Organizing Map Algorithm for Textual Classification: A Neural Network Approach to Automatic Thesaurus Generation,” Communication and Cognition in Artificial Intelligence Journal (CC-AI), Volume 15, Number 1-2, Pages 81-111, 1998.

H. Chen, O. Titkova, R. Orwig, and J. F. Nunamaker, “Information Visualization for Collaborative Computing,” IEEE Computer, Volume 31, Number 8, Pages 75-82, August 1998.

H. Chen, Y. Chung, M. Ramsey and C. Yang, “An Intelligent Personal Spider (Agent) for Dynamic Internet/Intranet Searching,” Decision Support Systems, Volume 23, Pages 41-58, 1998.

H. Chen, Y. Zhang and A. Houston, “Semantic Indexing and Searching Using a Hopfield Net,” Journal of Information Science, Volume 24, Number 1, Pages 3-18, 1998.

M. Ramsey, T. Ong and H. Chen, "Multilingual Input System for the Web - an Open Multimedia Approach of Keyboard and Handwritten Recognition for Chinese and Japanese," Proceedings of IEEE Advances in Digital Libraries Conference (ADL '98), Santa Barbara, CA, April 22-24, Pages 188-195, 1998.

H. Chen, J. Martinez, T. D. Ng and B. R. Schatz, “A Concept Space Approach to Addressing the Vocabulary Problem in Scientific Information Retrieval: An Experiment on the Worm Community System,” Journal of the American Society for Information Science, Volume 48, Number 1, Pages 17-31, January 1997.

R. E. Orwig, H. Chen and J. F. Nunamaker, “A Graphical, Self-Organizing Approach to Classifying Electronic Meeting Output,” Journal of the American Society for Information Science, Volume 48, Number 2, Pages 157-170, February 1997.

H. Chow, K. Tolle, D. Roe, V. Elsberry and H. Chen, “Application of Neural Networks to Population Pharmacokinetics Data Analysis,” Journal of Pharmaceutical Sciences, Volume 86, Number 7, Pages 840-845, July 1997.

H. Chen, T. R. Smith, M. L. Larsgaard, L. L. Hill and M. Ramsey, “A Geographic Knowledge Representation System (GKRS) for Multimedia Geospatial Retrieval and Analysis,” International Journal of Digital Libraries, Volume 1, Number 2, Pages 132-152, September 1997.

C. Lin and H. Chen, “An Automatic Indexing and Neural Network Approach to Concept Retrieval and Classification of Multilingual (Chinese-English) Documents,” IEEE Transactions on Systems, Man, and Cybernetics, Volume 26, Number 1, Pages 1-14, February 1996.

H. Chen, C. Schuffels and R. Orwig, “Internet Categorization and Search: A Self- Organizing Approach,” Journal of Visual Communication and Image Representation, Special Issue on Digital Libraries, Volume 7, Number 1, Pages 88-102, 1996.

B. Schatz and H. Chen, “Building Large-Scale Digital Libraries,” IEEE Computer, Special Issue on “Building Large-scale Digital Libraries,” Volume 29, Number 5, Pages 22-27, May 1996.

B. Schatz, W. Mischo, T. Cole, J. Hardin, A. Bishop and H. Chen, “Federating Diverse Collections of Scientific Literature,” IEEE Computer, Special Issue on “Building Large-scale Digital Libraries,” Volume 29, Number 5, Pages 28-36, May 1996.

H. Chen, A. Houston, J. Yen and J. F. Nunamaker, “Toward Intelligent Meeting Agents,” IEEE Computer, Volume 29, Number 8, Pages 62-70, August 1996.

H. Chen, B. Schatz, T. Ng, J. Martinez, A. Kirchhoff and C. Lin, “A Parallel Computing Approach to Creating Engineering Concept Spaces for Retrieval: The Illinois Digital Library Initiative Project,” IEEE Transactions on Pattern Analysis and Machine Intelligence, Special Section on Digital Libraries: Representation and Retrieval, Volume 18, Number 8, Pages 771-782, August 1996.

R. Orwig, H. Chen, D. Vogel and J. F. Nunamaker, “A Multi-Agent View of Strategic Planning Using Group Support Systems and Artificial Intelligence,” Group Decision and Negotiation, Volume 5, Pages 37-59, 1996.

H. Chen, B. Schatz, T. Yim, and D. Fye, “Automatic Thesaurus Generation for an Electronic Community System,” Journal of the American Society for Information Science, Volume 46, Number 3, Pages 175-193, April 1995.

H. Chen, “Machine Learning for Information Retrieval: Neural Networks, Symbolic Learning, and Genetic Algorithms,” Journal of the American Society for Information Science, Volume 46, Number 3, Pages 194-216, April 1995.

H. Chen and T. Ng, “An Algorithmic Approach to Concept Exploration in a Large Knowledge Network (Automatic Thesaurus Consultation): Symbolic Branch-and-bound Search vs. Connectionist Hopfield Net Activation,” Journal of the American Society for Information Science, Volume 46, Number 5, Pages 348-369, June 1995.

H. Chow, H. Chen, T. Ng, P. Myrdal and S. H. Yalkowsky, “Using Backpropagation Networks for the Estimation of Aqueous Activity Coefficients of Aromatic Organic Compounds,” Journal of Chemical Information and Computer Sciences, American Chemical Society, Volume 35, Number 4, Pages 723-728, July/August 1995.

H. Chen, “Collaborative Systems: Solving the Vocabulary Problem,” IEEE COMPUTER, Special Issue on Computer-Supported Cooperative Work, Volume 27, Number 5, Pages 58-66, May 1994.

H. Chen, A. K. Danowitz, K. J. Lynch, S. E. Goodman and W. K. McHenry, “Explaining and Alleviating Information Management Indeterminism: A Knowledge-Based Framework,” Information Processing and Management, Volume 30, Number 4, Pages 557-577, July-August 1994.

H. Chen, P. Hsu, R. Orwig, L. Hoopes and J. Nunamaker, “Automatic Concept Classification of Text from Electronic Meetings,” Communications of the ACM, Volume 37, Number 10, Pages 56-73, October 1994.

H. Chen, P. Buntin, L. She, S. Sutjahjo, C. Sommer and D. Neely, “Expert Prediction, Symbolic Learning, and Neural Networks: An Experiment on Greyhound Racing,” IEEE EXPERT, Volume 9, Number 6, Pages 21-27, December 1994.

H. Chen and J. Kim, “GANNET: A Machine Learning Approach to Document Retrieval,” Journal of Management Information Systems, Volume 11, Number 3, Pages 9-43, Winter 1994/95.

H. Chen, K. J. Lynch, K. Basu and T. Ng, “Generating, Integrating, and Activating Thesauri for Concept-Based Document Retrieval,” IEEE Expert, Special Series on Artificial Intelligence in Text-Based Information Systems, Volume 8, Number 2, Pages 25-34, April 1993.

H. Chen, K. J. Lynch, A. K. Himler and S. E. Goodman, “Information Management in Research Collaboration,” International Journal of Man-Machine Studies, Volume 36, Number 3, Pages 419-445, March 1992.

H. Chen, “Knowledge-Based Document Retrieval: Framework and Design,” Journal of Information Science: Principles & Practice, Volume 18, Number 3, Pages 293-314, June 1992.

H. Chen and K. J. Lynch, “Automatic Construction of Networks of Concepts Characterizing Document Databases,” IEEE Transactions on Systems, Man, and Cybernetics, Volume 22, Number 5, Pages 885-902, 1992.

E. Carmel, S. F. Crawford and H. Chen, ”Browsing in Hypertext: A Cognitive Study,” IEEE Transactions on Systems, Man, and Cybernetics, Volume 22, Number 5, Pages 865-884, 1992.

E. M. Roche, S. E. Goodman and H. Chen, “The Landscape of International Computing,” Advances in Computers, Edited by M. C. Yovits, Volume 35, Pages 326-371, 1992.

H. Chen and V. Dhar, “Cognitive Process as a Basis for Intelligent Retrieval Systems Design,” Information Processing and Management, Volume 27, Number 5, Pages 405-432, 1991.

H. Chen and V. Dhar, “User Misconceptions of Information Retrieval Systems,” International Journal of Man-Machine Studies, Volume 32, Number 6, Pages 673-692, 1990.

Book Chapters

B. Zhu and H. Chen, "Information Visualization," Editor: Blaise Cronin, in Annual Review of Information Science and Technology, volume 39, Information Today, Medford, NJ, 2005.

A.Houston and H. Chen, “Electronic Commerce and Digital Libraries,” Editors: M. Shaw, B. Blanning, T. Strader, and A. Whinston, in Handbook on Electronic Commerce, Springer, Berlin, Germany, Pages 339-363, 2000.

K. Tolle and H. Chen, “Intelligence Software Agents for Electronic Commerce,“ Editors: M. Shaw, B. Blanning, T. Strader, and A. Whinston, in Handbook on Electronic Commerce, Springer, Berlin, Germany, Pages 365-382, 2000.

H. Chen, “Semantic Issues for Digital Libraries,” in Annual Clinic on Library Applications of Data Processing, GSLIS, UIUC, Pages 51-60, 2000.

B. R. Schatz, W. Mischo, T. Cole, A. Bishop, S. Harum, E. Johnson, L. Neumann, H. Chen, and D. Ng, “Federated Search of Scientific Literatures: A Retrospective On the Illinois Digital Library Project,” in Successes and Failures of Digital Libraries, 35th Annual Clinic on Library Applications of Data Processing, Editors: S. Harum and M. Twindale, GSLIS, UIUC, Pages 41-57, 2000.

H. Chen, “Semantic Issues for Digital Libraries,” in Successes and Failures of Digital Libraries, 35th Annual Clinic on Library Applications of Data Processing, Editors: S. Harum and M. Twindale, GSLIS, UIUC, Pages 70-79, 2000. Editors: M. Shaw, B. Blanning, T. Strader, and A. Whinston, in Handbook on Electronic Commerce, Springer, Berlin, Germany, Pages 339-363, 2000.

H. Chen, M. Ramsey, and P. Li, “The Java Search Agent Workshop,” Editors: P. Gabriella and F. Crestani, in Soft Computing in Information Retrieval, Physica-Verlag, Pages 122-140, 2000.

A.Houston and H. Chen, “A Path to Concept-based Information Access: From National Collaboratories to Digital Libraries,” Editors: G. M. Olson, T. W. Malone, and J. B. Smith, in Coordination Theory and Collaboration Technology, Lawrence Erlbaum Associates, Mahwah, NJ, 2000, forthcoming.

B.Marshall, T. Madhusudan "Element Matching in Concept Maps", Proceedings of the fourth ACM and IEEE Joint Conference on Digital Libraries (JCDL-2004), June 7-11, Tucson, AZ

C.Q. Yin, L.D. Nickels, C.Z. Chen, T. G. Ng, and H. Chen " DGPort: A Web Portal for Digital Government " Presented at dg.o2003, Digital Government Conference, May 18-21, 2003, Boston, MA

G. Leroy H. Chen, J. D. Martinez, S. Eggers, R. R. Falsey, K. L. Kislin, Z. Huang, J. Li, J. Xu, D. M. McDonald, and G. Ng "Genescene: Biomedical Text and Data Mining", Presented at the Third ACM and IEEE Joint Conference on Digital Libraries (JCDL-2003), Houston, May 2003.

B. Marshall, Y. Zhang, H. Chen, A. Lally, R. Shen, E. Fox and L. Cassel "Convergence of Knowledge Management and E-Learning: the GetSmart Experience," Presented at the Third ACM and IEEE Joint Conference on Digital Libraries (JCDL-2003), Houston, May 2003.

Z. Huang, W. Chung, T.-H. Ong and H. Chen, A Graph-Based Recommender System for Digital Library, in: Proceedings of the Second ACM/IEEE-CS Joint Conference on Digital Libraries (JCDL'02), Portland, Oregon, July 14-18, 65-73, (2002).

G. Leroy and H. Chen, "MedTextus: An Ontology-enhanced Medical Portal," presented at the Workshop on Information Technology and Systems (WITS), Barcelona, December 2002.

Michael Chau, H. Chen, Jialun Qin, Yilu Zhou, Yi Qin, Wai-Ki Sung, Daniel McDonald, "Comparison of Two Approaches to Building a Vertical Search Tool: A Case Study in the Nanotechnology Domain," Proceedings of the Second ACM/IEEE-CS Joint Conference on Digital Libraries (JCDL'02), Portland, Oregon, July 14-18, 2002.

G. Leroy and H. Chen, "Filling Preposition-based Templates to Capture Information from Medical Abstracts," presented at the Pacific Symposium on Biocomputing, Kaua’i, pp 350-361, January, 2002.

Michael Chau, H. Chen, Jialun Qin, Yilu Zhou, Wai-Ki Sung, Mark Chen, Yi Qin, Daniel McDonald, Ann Lally, Matthew Landon, "NanoPort: A Web Portal for Nanoscale Science and Technology," Proceedings of the Second ACM/IEEE-CS Joint Conference on Digital Libraries (JCDL'02), Portland, Oregon, July 14-18, 2002.

Michael Chau, Jennifer J. Xu, H. Chen, "Extracting Meaningful Entities from Police Narrative Reports," Proceedings of the National Conference for Digital Government Research (dg.o 2002), Los Angeles, California, May 19-22, 2002.

Michael Chau, Daniel Zeng, and H. Chen, "Personalized Spiders for Web Search and Analysis," Proceedings of the First ACM/IEEE-CS Joint Conference on Digital Libraries (JCDL'01), Roanoke, Virginia, pp. 79-87, June 24-28, 2001.

Homa Atabakhsh, Jennifer Schroeder,H. Chen, Michael Chau, Jennifer Xu, Jing Zhang, and Haidong Bi , “COPLINK Knowledge Management for Law Enforcement: Text Analysis, Visualization and Collaboration," Proceedings of the National Conference for Digital Government Research (dg.o 2001), Los Angeles, California, May 21-23, 2001.

Michael Chau, Homa Atabakhsh, Daniel Zeng, and H. Chen, “Building an Infrastructure for Law Enforcement Information Sharing and Collaboration: Design Issues and Challenges,” Proceedings of the National Conference for Digital Government Research (dg.o 2001), Los Angeles, California, May 21-23, 2001.

H. Chen, “Medical Mining: A DLI-Status Report,” Proceedings of the 4th International Conference of Asian Digital Libraries (ICADL 2001), Bangalore, India, December 10-12, 2001.

H. Chen, “Knowledge Management Systems: A Text Mining Perspective,” Invited Tutorial for The 4th International Conference of Asian Digitial Libaries (ICADL 2001), Bangalore, India, December 10-12, 2001.

B. Zhu and H. Chen, “Social Visualization for Computer-Mediated Communication: A Knowledge Management Perspective,” Proceedings of WITS'01, Conference, New Orleans, Louisana, December 15-16, 2001.

H. Chen, “COPLINK: Knowledge Management for Law Enforcement,” Proceedings of the National Conference on Digital Government Research, Los Angeles, CA, May 21-23, 2001.

H. Chen, “A Case of Information Categorization in NSF DLI Research,” Proceedings of The Second International Roundtable on Terminology, Seoul, Korea, December 10, 2000.

H. Chen, “High-Performance Digital Library Classification Systems: An Experiment in Medical Informatics,” Editors: G. M. Olson, T. W. Malone, and J. B. Smith, Proceedings of the Third International Asian Digital Library Conference, Seoul, Korea, December 6-9, 2000.

H. Chen, “UMLS and Linguistics Enhanced Medical Information Retrieval,” Proceedings of NHRI (National Health Research Institute) Research Resources 2000, Taipei, Taiwan, April 27, 2000.

N. C. Romano, C. Baur, H. Chen, “The MindMine Comment Analysis Tool for Collaborative Attitude Solicitation, Analysis, Sense-making and Visualization,” Proceedings of the 33th Annual Hawaii International Conference on System Sciences (HICSS-33), Maui, Hawaii, January 7-10, 2000.

T. Ong and H. Chen, “Updateable PAT-Tree Approach to Chinese Key Phrase Extraction Using Mutual Information: A Linguistic Foundation for Knowledge Management,” Proceedings of the Second Asian Digital Library Conference , Taipei, Taiwan, November 8-9, 1999.

G. Leroy, K Tolle, and H. Chen, “Customizable and Ontology-Enhanced Medical Information Retrieval Interfaces,” Proceedings of International Medical Informatics Association Working Group 6 on Medical Concept Representation, Phoenix, Arizona, December 16-19, 1999.

B. Zhu, M. Ramsey, H. Chen, R. V. Hauck, T. D. Ng and B. R. Schatz, “Support Concept-based Multimedia Information Retrieval: A Knowledge Management Approach,” Proceedings of the ICIS Conference, Charlotte, North Carolina, December 12-15, 1999.

R. V. Hauck and H. Chen, “COPLINK: A Case of Intelligent Analysis and Knowledge Management,” Proceedings of the ICIS Conference , Charlotte, North Carolina, December 12-15, 1999.

N. C. Romano, D. Roussonov, J. F. Nunamaker, and H. Chen, “Collaborative Information Retrieval Environment: Integration of Information Retrieval with Group Support Systems,” Proceedings of the 32th Annual Hawaii International Conference on System Sciences (HICSS-32) , Maui, Hawaii, January 7-10, 1999.

H. Chen, “The Illinois Digital Library Initiative Project: Federating Repositories and Semantic Research,” Proceedings of The First Asia Digital Library Workshop '98, Hong Kong, August 6-7, 1998.

M. Ramsey, T. Ong, and H. Chen, “Multilingual Input System on the Web - an Open Multimedia Approach of Handwriting and Keyboard Recognition for Chinese and Japanese,” Proceedings of IEEE Advances in Digital Libraries Conferences (ADL '98), Santa Barbara, CA, Pages 188-195, April 22-24, 1998.

H. Chen, Y. Chung, M. Ramsey, C. Yang, P. Ma, and J. Yen , “Intelligent Agents on the Internet,” Proceedings of the 30th Annual Hawaii International Conference on System Sciences (HICSS-30), Maui, Hawaii, January 7-10, 1997.

B. Schatz, E. Johnson, P. Cochrane, and H. Chen, “Interactive Term for Users of Digital Libraries: Using Subject Thesauri and Co-occurrences Lists for Information Retrieval,” ACM Digital Library Conference, Pages 126-133, 1996.

H. Chen, B. R. Schatz, C. Lin , “Concept Classification and Search on Internet Using Machine Learning and Parallel Computing Techniques,” World Wide Web 4 Conference, Boston, MA, Pages 58-59, Poster Proceedings, December 11-14, 1995.

J. Yen, H. Chen, P. Ma, and T. Bui , “An Issue Identifier for Online Financial Databases,” Proceedings of International Society for Decision Support Systems Third International Conference ISDSS'95, Hong Kong, June 22-23, 1995.

H. Chen and B. Schatz , “Semantic Retrieval for the NCSA Mosaic,” Proceedings of the Second International World Wide Web Conferences '94, Chicago, Illinois, October 17-20, 1994.

J Martinez and H. Chen, “Cognitive Studies on the Use of Automatic Thesauri for Information Retrieval in Biological Domains,” AzLA Annual Conference, November, 1994.

H. Chen and L. She, “Inductive Query By Examples (IQBE): A Machine Learning Approach,” Proceedings of the 27th Annual Hawaii International Conference on System Sciences (HICSS-27), Maui, Hawaii, January 4-7, 1994.

H. Chen, “An Algorithmic Approach to Building Organizational Memory for a Scientific Community,” Proceedings of the 27th Annual Hawaii International Conference on System Sciences (HICSS-27), Maui, Hawaii, January 4-7, 1994.

H. Chen, “A Machine Learning Approach to Document Retrieval: An Overview and an Experiment,” Proceedings of the 27th Annual Hawaii International Conference on System Sciences (HICSS-27), Maui, Hawaii, January 4-7, 1994.

H. Chen , “ Approach on the Vocabulary Problem in Collaboration,” Proceedings in the National Science Foundation Coordination Theory and Collaboration Technology Workshop (NSFCTCT), Arlington, VA, July 8-10, 1993.

B. Schatz, E. Grossman, T. Friedman, K. Powell, J. Calley, H. Chen, L. Star, S. Hudson, S. Ward, “The Worm Community System, Release 2,” 1993 Meeting on C. elegans, University of Wisconsin, Madison, Wisconsin, June 2-6, 1993.

K. J, Lynch and H. Chen, “Knowledge Discovery from Historical Data: An Algorithmic Approach,” Proceedings in the 25th Annual Hawaii International Conference on System Sciences (HICSS-25), Kaui, Hawaii, Pages 70-79, January 7-10, 1992.

H. Chen and V. Dahr, “Online Query Refinement on Information Retrieval Systems: A Process Model of Searcher/System Interactions,” Proceedings in the 13th International Conference on Research and Development in Information Retrieval (SIGIR-90), Brussels, Belgium, 1990.

H. Chen and V. Dahr, “A Knowledge-Based Approach to the Design of Document-Based Retrieval Systems,” Proceedings in the 5th Conference on Office Information Systems (COIS-90), Boston, Massachusetts, 1990.

H. Chen, “A Knowledge-Based Design for Hypertext-Based Document Retrieval Systems,” Proceedings in the International Conference on Data Base and Expert Systems Applications (DEXA-90), Vienna, Austria, 1990.

H. Chen and V. Dahr, “Reducing Indeterminism in Consultation: A Cognitive Model of User/Librarian Interactions,”Proceedings of the 6th National Conference on Artificial Intellegence (AAAI-87), Seattle, Washington, 1987.