Papers in Refereed Journals

  1. 1.X. Lin., M. Khoo, J. Ahn, D. Tudhope, C. Binding, D. Massam, H. Jones. Mapping metadata to DDC classification structures for searching and browsing. International Journal on Digital Libraries, 18(1), 1-15, March 2017.

  2. 2.M. Khoo, J. Ahn, C. Binding, H. Jones, X. Lin, D. Massam, and D. Tudhope. (2015) Augmenting Metadata from Heterogeneous Digital Libraries with DDC Subjects. Journal of Documentation, 71(5), 976-998.

  3. 3.Ahn, J., Plaisant, C., and Shneiderman B. (2014)  A Task Taxonomy of Network Evolution Analysis. IEEE Transactions on Visualization and Computer Graphics (TVCG). 20(3). (March 2014 Spotlight Paper)

  4. 4.Ahn, J., and Brusilovsky, P. (2013) Adaptive Visualization for Exploratory Search.  Information Processing and Management Special Topic on Human-Computer Information Retrieval. 49(5):1139-1164.

  5. 5.Ahn, J., Brusilovsky, P., Grady, J., and He, D. (2010) Semantic Annotation Based Exploratory Search for Information Analysts. Information Processing and Management, Special Issue on Semantic Annotations in Information Retrieval. 46(4):383-402.

  6. 6.Brusilovsky, P., Ahn, J., and Rasmussen, E. (2010). Teaching Information Retrieval with Web-based interactive Visualization. Journal of Education for Library and Information Science (JELIS). 51(3):187.

  7. 7.Ahn, J., and Brusilovsky, P. (2009). Adaptive Visualization of Search Results: Bringing User Models to Visual Analytics. Information Visualization. Special Issue on Human-Centered Information Visualization. 8(3):167-179.

  8. 8.He, D., Brusilovsky, P., Ahn, J., Grady, J., Farzan, R., Peng, Y., Yang, Y., and Rogati, M. (2008). An evaluation of adaptive filtering in the context of realistic task-based information exploration. Information Processing and Management, 44(2):511-533.

  9. 9.Ahn, J., Farzan, R., and Brusilovsky, P. (2006) Social Search in the Context of Social Navigation. Journal of the Korean Society for Information Management 23(2):147-165.

Book Chapters

  1. 1.D, He., P. Brusilovsky, J. Grady, J. Ahn, Y. Yang, M. Rogati. EDIE: An Evaluation Dataset for Task-Based Information Exploration. In: Handbook of Natural Language Processing and Machine Translation: DARPA Global Autonomous Language Exploitation. Springer, New York. ISBN 978-1441977120.

Papers in Refereed Conferences

  1. 1.J. Ahn, P. Watson, M. Chang, S. Sundararajan, T. Ma, N. Mukhi, and S. Prabhu. Wizard’s Apprentice: Cognitive Suggestion Support for Wizard-of-Oz Question Answering. The 18th International Conference on Artificial Intelligence in Education (AIED 2017), 2017(30% acceptance rate)

  2. 2.Ahn, J., Brusilovsky, P, and Han, S. (2015) Personalized Search: Reconsidering the Value of Open User Models. Proceedings of the 20th International Conference on Intelligent User Interfaces (IUI 2015), pp. 202--212. (22.9% acceptance rate)

  3. 3.Lee, J., Ahn, J., Oh, J., and Ryu, H. (2015) Mysterious Influential Users in Political Communication on Twitter: Users' Occupation Information and Its Impact on Retweetability. iConference 2015.

  4. 4.Ahn, J., Soergel, D., Lin, X, Zhang, M., and Ying, W. (2014) Mapping between ARTstor Material Terms and the Getty Art and Architecture Thesaurus (AAT). International Society for Knowledge Organization (ISKO) Conference 2014.

  5. 5.Lin, X., and Ahn, J.. Challenges of knowledge structure visualization. (2013) International UDC Seminar 2013.

  6. 6.Dudas, P., Ahn, J., Jongh, M, and Brusilovsky, P. (2013) Visualizing Overlapping Latent Communities Using POI-Based Visualizations. iConference 2013.

  7. 7.Khoo, M., Tudhope, D, Binding, C., Jones H., Orrego, I., and Ahn, J.. (2013) MASHing metadata: Legacy issues
    in OAI harvesting from three digital libraries
    , iConference 2013.

  8. 8.Ahn, J., Hammock, J., Parr, C., Preece J., Shneiderman, B., Shultz, K., Hansen, D., Rotman, D., and He, Y. (2012) Visual Visually Exploring Social Participation in Encyclopedia of Life, 2012 ASE International Conference on Social Informatics. (11.5% acceptance rate)

  9. 9.Rey, P.J., Sopan, A., Ahn, J., Kang, J., Plaisant, C., and Shneiderman, B. (2012) The Influence of Leadership on Activity Levels in an Online Crime Watch Community, American Sociology Association Annual Meeting, 2012.

  10. 10.Ahn, J., Maimon, M., Sopan S., Plaisant C., and Shneiderman B. (2011) Temporal Visualization of Social Network Dynamics: Prototypes for Nation of Neighbors. 2011 International Conference on Social Computing, Behavioral-Cultural Modeling, & Prediction (SBP11).

  11. 11.Khurana, U., Nguyen, V., Cheng, H., Ahn, J., Chen, X., Shneiderman, B. (2011) Visual Analysis of Temporal Trends in Social Networks using Edge Color Coding and Metric Timelines. The Third IEEE International Conference on Social Computing (SocialCom 2011).

  12. 12.Ahn, J., and Brusilovsky, P. (2010) Can Concept-based User Modeling Improve Adaptive Visualization? In: Proceedings of 18th International Conference on User Modeling, Adaptation, and Personalization (UMAP 2010), June 22-24, Springer, pp. 4-15. (23% acceptance rate)

  13. 13.Ahn, J., and Amatriain, X. (2010) Towards Fully Distributed and Privacy-preserving Recommendations via Expert Collaborative Filtering and RESTful Linked Data. In Proceedings of the IEEE/WIC/ACM International Conference on Web Intelligence, Toronto, Canada. (16.6% acceptance rate)

  14. 14.Lin, Y., Ahn, J., Brusilovsky, P., He, D., and Real, W. (2010) Exploratory Search of Museum Archives with Named Entity-Based Faceted Browsing. In Proceedings of ASIS&T 2010 Annual Meeting, Pittsburgh, PA, USA. (29.7% acceptance rate)

  15. 15.Ahn, J., Brusilovsky, P., He, D., Grady, J., and Li, Q. (2008) Personalized Web Exploration with Task Models. In: Proceedings of the 17th international conference on World Wide Web, WWW '08, Beijing, China, April 21-25, 2008. (15% acceptance rate)

  16. 16.Ahn, J., Brusilovsky, P., Grady, J., He, D., and Syn, S. Y. (2007) Open user profiles for adaptive news systems: help or harm? In: Proceedings of the 16th international conference on World Wide Web, WWW '07, Banff, Canada, May 8-12, 2007, ACM Press, pp. 11-20. (under 12% acceptance rate)

  17. 17.Ahn, J. and Brusilovsky, P. (2007) From user query to user model and back: Adaptive relevance-based visualization for information foraging. In: T. Y. Lin, et al. (eds.) Proceedings of the 2007 international conference on Web Intelligence, WI '07, Silicon Valley, CA, USA, November 2-5, 2007, IEEE, pp. 706-712. (16% acceptance rate)

  18. 18.He, D., Brusilovsky, P., Grady, J., Li, Q., and Ahn, J. (2007) How Up-to-date should it be? The Value of Instant Profiling and Adaptation in Information Filtering. In: T. Y. Lin, et al. (eds.) Proceedings of the 2007 international conference on Web Intelligence, WI '07, Silicon Valley, CA, USA, November 2-5, 2007, IEEE, pp. 699-705.

  19. 19.Ahn, J., Brusilovsky, P., and Sosnovsky, S. (2006) QuizVIBE: Accessing Educational Objects with Adaptive Relevance-Based Visualization. In: Proceedings of World Conference on E-Learning, E-Learn 2006, Honolulu, Hawaii, October 13-17, 2006, AACE, pp. 2707-2714.

  20. 20.Brusilovsky, P., Ahn, J., Dumitriu, T., and Yudelson, M. (2006) Adaptive knowledge-based visualization for accessing educational examples. In: B. Ebad, et al. (eds.) Proceedings of Information Visualization, London, UK, July 5-7, 2006, IEEE, pp. 142-147.

  21. 21.Brusilovsky, P., Farzan, R., and Ahn, J. (2005) Comprehensive personalized information access in an educational digital library. In: Proceedings of The 5th ACM/IEEE-CS Joint Conference on Digital Libraries, Denver, CO, June 7-11, 2005, ACM Press, pp. 9-18. (31% acceptance rate)

Papers in Non-Refereed International Conferences

  1. 1.He, D., and Ahn, J. (2005) Pitt at CLEF05: Data Fusion for Spoken Document Retrieval. In Proceedings of Cross-Language Evaluation Forum 2005.

  2. 2.He, D., and Ahn, J. (2005) Pitt at TREC 2005: HARD and Enterprise. In Proceedings of Text REtrieval Conference (TREC) 2005 pp 896-908.

Papers in Refereed Workshops

  1. 1.Ahn, J., Wongsuphasawat, K., and Brusilovsky, P. Analyzing User Behavior Patterns in Adaptive Exploratory Search Systems with LifeFlow. In Fifth Workshop on Human-Computer Interaction and Information Retrieval (HCIR 2011), Mountain View, CA, USA, Oct 2011.

  2. 2.Ahn, J., and Brusilovsky, P. (2009) Visual Interaction for Personalized Information Retrieval. Third Workshop on Human-Computer Interaction and Information Retrieval (HCIR 2009).

  3. 3.Koshman, S., and Ahn, J. (2009) Adapting an Information Visualization Tool for Mobile Information Retrieval. Third Workshop on Human-Computer Interaction and Information Retrieval (HCIR 2009).

  4. 4.Brusilovsky, P., Ahn, J., and Farzan, R. (2007) Accessing Educational Digital Libraries through Adaptive Information Visualization. In: Proceedings of 10th DELOS Workshop on Personalized Access, Profile Management, and Context Awareness in Digital Libraries, PersDL 2007, Corfu, Greece, June 29-30, 2007.

  5. 5.Ahn, J., Farzan, R., and Brusilovsky, P. (2006) A two-level adaptive visualization for information access to open-corpus educational resources. In: P. Brusilovsky, J. Dron and J. Kurhila (eds.) Proceedings of Workshop on the Social Navigation and Community-Based Adaptation Technologies at the 4th International Conference on Adaptive Hypermedia and Adaptive Web-Based Systems, Dublin, Ireland, June 20th, 2006, pp. 497-505.

  6. 6.Brusilovsky, P., Farzan, R., and Ahn, J. (2006) Layered Evaluation of Adaptive Search. In: Proceedings of Workshop on Evaluating Exploratory Search Systems at the 29th Annual International ACM SIGIR Conference on Research & Development on Information Retrieval, Seattle 2006, pp. 11-13.

  7. 7.Ahn, J., Brusilovsky, P., and Farzan, R. (2005) Investigating Users' Needs and Behavior for Social Search. In: P. Brusilovsky, C. Callaway and A. N.rnberger (eds.) Proceedings of Workshop on New Technologies for Personalized Information Access at 10th International User Modeling Conference, UM 2005, Edinburgh, July 24-25, 2005, pp. 1-12.