Contact Information
 

Office	Pfahler 101J
Email	akontostathis@ursinus.edu
Phone Number	610-409-3650

Schedule - Fall 2010
 

CS-010 Computational Problem Solving	Mon 3:00-5:30	Pfahler 001
CS-173 Intro to CS	Tues/Thurs 10-11:15	Pfahler 210
CS-173L Intro to CS Lab	Mon 1:30-2:20	Pfahler 001
CS-476 Computer Graphics	Tues/Thurs 12:00-1:15	Pfahler 107
CS-375 Object Oriented Design and Software Engineering	Tues/Thurs 1:30-2:45	Pfahler 107

Office Hours - Fall 2010
 

Mon 10-12

Tues/Thurs 9-10

By Appointment

Blogs

Angela Berardinelli (class of 2010), Double Major Math and Computer Science, Blog from her first year in graduate school in mathematics

Justin Garavel (class of 2011), double major CS and Business, Video Blog from his study abroad experience in Japan

Ali Nolan (class of 2011), double major CS and Math, Blog from her study abroad experience in Italy

Jen Bayzick (class of 2011) and India McGhee (class of 2010), also known as Jendia, on a trip to a conference to present a paper in Seville, Spain - Nov 2009

Vacation with extended family - Summer 2008

Background

For more information, check out my C.V., Research Statement and Teaching Statement.

Education
 

2004	PhD in Computer Science	Lehigh University
1986	Master of Arts in Mathematics	Duke University
1984	Bachelor of Arts in Mathematics	Bloomsburg University

Projects
 

TextMOLE: Text Mining Operations Library and Environment

Student Honors and Distinguished Honors papers
 

Improving Search and Retrieval Performance through Shortening Documents, Detecting Garbage, and Throwing Out Jargon	Scott Kulp	Dec 2007
The Development of Text-Mining Tools and Algorithms	Daniel Waegel	May 2006
Experiments in Emerging Trend Detection and First Story Detection	Indro De	May 2005

Publications

2010

Kontostathis, April, Erin Moulding and Raymond J. Spiteri. (2010). EDLSI with PSVD Updating. In Proc. Text Mining Workshop 2010 held in conjunction with the Tenth SIAM International Conference on Data Mining (SDM 2010). Columbus, OH. May 2010.

Moulding, Erin, April Kontostathis and Raymond J. Spiteri. (2010). Sparse Matrix Factorization: Applications to Latent Semantic Indexing Proceedings of the Eighteenth Text REtrieval Conference (TREC2009). NIST Special Publication 500-xxx. February 2010.

2009

Kontostathis, April, Andrew Lilly and Raymond J. Spiteri. (2009). Distributed EDLSI, BM25, and Power Norm at TREC 2008. Proceedings of the Seventeenth Text REtrieval Conference (TREC2008). NIST Special Publication 500-277. February 2009.

Kontostathis, April, Lynne Edwards, and Amanda Leatherman. (2009). ChatCoder: Toward the Tracking and Categorization of Internet Predators. In Proc. Text Mining Workshop 2009 held in conjunction with the Ninth SIAM International Conference on Data Mining (SDM 2009). Sparks, NV. May 2009.

D. Yin, Z. Xue, L. Hong, B. D. Davison, A. Kontostathis, and L. Edwards, Detection of Harassment on Web 2.0 in CAW 2.0 ‘09: Proceedings of the 1st Content Analysis in Web 2.0 Workshop, Madrid, Spain, 2009.

Kontostathis, April, Lynne Edwards, and Amanda Leatherman. (2009). Text Mining and Cybercrime In Text Mining: Application and Theory. Michael W. Berry and Jacob Kogan, Eds., John Wiley & Sons, Ltd. 2009.

Kontostathis, April, Lynne Edwards, Jen Bayzick, India McGhee, Amanda Leatherman and Kristina Moore. (2009). Comparison of Rule-based to Human Analysis of Chat Logs. 1st International Workshop on Mining Social Media (MSM09). Seville, Spain. Nov 2009.

2008

Kulp, Scott and April Kontostathis. (2008). On Retrieving Legal Files: Shortening Documents and Weeding Out Garbage. Proceedings of the Sixteenth Text REtrieval Conference (TREC2007). NIST Special Publication 500-274. February 2008.

Kontostathis, April and Scott Kulp. (2008). The Effect of Normalization When Recall Really Matters. Proceedings of the 2008 International Conference on Information and Knowledge Engineering. Las Vegas, NV. July 2008.

2007

Kontostathis, April. (2007). Essential Dimensions of Latent Semantic Indexing (EDLSI). Proceedings of the 40th Annual Hawaii International Conference on System Sciences (CD-ROM). January 2007. Computer Society Press.

2006

Kontostathis, April and William M. Pottenger. (2006). A framework for understanding LSI performance. Information Processing and Management. Volume 42, number 1, pages 56-73.

Waegel, Daniel B, and April Kontostathis. (2006). Using Query History to Prune Query Results. In Proceedings of Text Mining 2006 Workshop held in conjunction with SIAM Data Mining 2006. Bethesda, MD.

Waegel, Daniel B, and April Kontostathis. (2006). TextMOLE: Text Mining Operations Library and Environment. In Proceedings of the 2006 Technical Symposium on Computer Science Education. Houston, TX.
TextMOLE Home Page

2005

Kontostathis, April, William M. Pottenger, and Brian D. Davison. (2005). Identification of critical values in Latent Semantic Indexing (LSI). In T.Y. Lin, S. Ohsuga, C. Liau, X. Hu and S. Tsumoto, editors, Foundations of Data Mining and Knowledge Discovery, pages 333-346. Springer-Verlag.

Indro De (April Kontostathis, Faculty Advisor). (2005) Experiments in First Story Detection. Proceedings of The National Conference On Undergraduate Research (NCUR) 2005.

2004

Holzman, L.E., Fisher, T.A., Galitsky, L. M., Kontostathis, A., and Pottenger, W. M. (2004). A Software Infrastructure for Research in Textual Data Mining. The International Journal on Artificial Intelligence Tools. (Preprint). Volume 14, number 4, pages 829-849.

Kontostathis, April, William M. Pottenger, and Brian D. Davison. (2004). Assessing the impact of sparsification on LSI Performance. Proceedings of the 2004 Grace Hopper Celebration of Women in Computing Conference. Oct 6-9, 2004. Chicago, IL.

Mill, William and April Kontostathis. (2004). Analysis of the values in the LSI term-term matrix . Technical Report.

Kontostathis, A., and Sliner, L. (2004). Use of Visualization to Assist the User with Term Selection for Query Expansion. Technical Report.

Kontostathis, April, Indro De, Lars E. Holzman and William M. Pottenger.  (2004).  Use of Term Clusters for Emerging Trend Detection.  Technical Report.

Kontostathis, April, Leon Galitsky, Soma Roy, William M. Pottenger and Daniel Phelps.  (2003).  An overview of Emerging Trends Detection (ETD) in Textual Data Mining., In A Comprehensive Survey of Text Mining, Michael Berry, Ed., Springer-Verlag. 2003.

Kontostathis, April and William M. Pottenger.  (2003).  A framework for understanding LSI Performance.  Proceedings of ACM SIGIR Workshop on Mathematical/Formal Methods in Information Retrieval-ACMSIGIR MF/IR '03.

Holzman, L., T.A. Fisher, L.M. Galitsky, A. Kontostathis, and W.M. Pottenger. (2003). A Software Infrastructure for Research in Textual Data Mining. Proceedings of the fifteenth annual IEEE International Conference on Tools with Artificial Intelligence. Available on the WWW at http://hddi.cse.lehigh.edu.

2002

Kontostathis, April and William M. Pottenger.  (2002).  Detecting Patterns in the LSI Term-Term Matrix .  IEEE ICDM02 Workshop Proceedings, The Foundation of Data Mining and Knowledge Discovery (FDM02). pp. 243-248. Maebashi, Japan. December 2002.

Personal

Yes, the name is Greek for those who are wondering. My husband was born and raised in Athens, Greece. My maiden name was Edwards! We two sons Kirie and AJ.