Publications


Recent Papers:
Luo Si, Rong Jin, Steven C.H. Hoi (2006). "Collaborative Image Retrieval via Regularized Metric Learning"  ACM Multimedia Systems Journal, Special issue on Machine Learning Approaches to Multimedia Information Retrieval. (ACM Multimedia Systems Journal)(In Press) (PDF).

Thi T. Avrahami, Lawrence Yao, Luo Si and Jamie Callan. (2006). "The FedLemur project: Federated search in the real world" In Journal of the American Society for Information Science and Technology. (JASIST) 57(3) (pp. 347-358).

Rong Jin, Luo Si, ChengXiang Zhai. (2006) "A study of Mixture Models for Collaborative Filtering" Journal of Information Retrieval. (Journal of Information Retrieval) (In Press) (PDF).

Luo Si and Jamie Callan. (2005). "Modeling Search Engine Effectiveness for Federated Search" In Proceedings of the Twenty Seventh Annual International ACM SIGIR Conference on Research and Development in Information Retrieval. Toronto, Canada: ACM. (SIGIR) (PDF)

Rong Jin, Joyce Y. Chai and Luo Si. (2005). "Learn to Weight Terms in Information Retrieval Using Category Information" In Proceedings of the 22th International Conference on Machine Learning. Bonn, Germany.  (ICML). (PDF)
 
Luo Si and Jamie Callan. (2005). “CLEF2005: Multilingual Retrieval by Combining Multiple Multilingual Ranked Lists” In C. Peters(Ed.), Results of the CLEF2005 cross-language evaluation forum (CLEF). (PDF)
(No.1 in 2005 Cross-lingual Evaluation Formul (CLEF) Multilingual Retrieval Task by European Comission) 
(No.1 in 2005 Cross-lingual Evaluation Formul (CLEF) Results Merging Task by European Commision)

Luo Si, Tapas Kanungo and Xiangji Huang. (2005). "Boosting Performance of Bio-Entity Recognition by Combining Results from Multiple Systems" WorkShop on Data Mining in Bioinformatics (BioKDD). (PDF)

Luo Si and Tapas Kanungo (2005). “On the Use of Hierarch Information in Mapping Patents to Biomedical Ontologies” Technique Report, IBM (RJ10365) (PDF)

Jimmy Huang, Ming Zhuo and Luo Si. (2005). “York University at TREC 2005: Genomic Track” In Proceedings of the 2005 Text REtrieval Conference (TREC). (PDF)
(No.1 in 2005 TREC Genomics Adhoc Retrieval Task by NIST) 
Luo Si and Tapas Kanungo. (2005). “Thresholding Strategies for Text Classifiers: TREC-2005 Biomedical Triage Task Experiments” In Proceedings of the 2005 Text REtrieval Conference (TREC) (PDF)
(2 No.2 in 2005 TREC Genomics Triage Tasks by NIST)
 
Luo Si and Rong Jin. (2005). "Adjusting Mixture Weights of Gaussian Mixture Model via Regularized Probabilistic Latent Semantic Analysis" In Proceedings of the Ninth Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD) . (PDF)
2004
Luo Si and Jamie Callan. (2004). "Unified Utility Maximization Framework for Resource Selection" In Proceedings of the 13th International Conference on Information and Knowledge Management. (CIKM) ACM. (PDF)

Luo Si and Rong Jin. (2004). "Unified Filtering by Combining Collaborative Filtering and Content-Based Filtering via Mixture Model and Exponential Model" In Proceedings of the 13th International Conference on Information and Knowledge Management. (CIKM) ACM. (PDF)

Rong Jin, Joyce Chai and Luo Si. (2004). "Effective Automatic Image Annotation via a Coherent Language Model and Active Learning" In Proceedings of the Twentieth Annual ACM International Conference on Multimedia. (ACM Multimedia) (PDF)

Rong Jin and Luo Si. (2004). "A Bayesian Approach toward Active Learning for Collaborative Filtering" In Proceedings of the Twentieth Conference on Uncertainty in Artificial Intelligence. Banff, Alberta. (UAI) (PDF)

Luo Si and Jamie Callan. (2004). Chapter: "The Effect of Database Size Distribution on Resource Selection Algorithms" In Distributed Multimedia Information Retrieval , LNCS 2924, Springer (An extension of the SIGIR 2003 workshop paper) (LNCS)

Rong Jin, Joyce Zhai and Luo Si (2004)  "An Automated Weighting Scheme for Collaborative Filtering" In Proceedings of the Twenty Sixth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval. Sheffield, UK: ACM. (SIGIR) (PDF)

Jesse Montgomery, Luo Si, Jamie Callan and David A. Evans. (2004). "Effect of Varying Number of Documents in Blind Feedback" In Proceedings of the Twenty Sixth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval. Sheffield, UK: ACM. (SIGIR) (PDF)

Rong Jin and Luo Si (2004)  "A Study of Methods for Normalizing User Ratings in Collaborative Filtering" In Proceedings of the Twenty Sixth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval. Sheffield, UK: ACM. (SIGIR) (PDF)

2003

Luo Si and Jamie Callan. (2003). "A Semi-Supervised Learning Method to Merge Search Engine Results" In ACM Transactions on Information Systems , 24(4) (pp. 457-491). ACM (TOIS) (PDF)

Rong Jin, Luo Si, ChengXiang Zhai and Jamie Callan. (2003). "Collaborative Filtering with Decoupled Models for Preferences and Ratings" In Proceedings of the 12th International Conference on Information and Knowledge Management. (CIKM) ACM. (PDF)

Luo Si and Rong Jin. (2003). "Flexible Mixture Model for Collaborative Filtering" In Proceedings of the Twentieth International Conference on Machine Learning. Washington, DC USA. (ICML) (PDF)

Rong Jin, Yan Liu, Luo Si, Jamie Carbonell and Alex Hauptmann. (2003). "A New Boosting Algorithm Using Input-Dependent Regularizer" In Proceedings of the Twentieth International Conference on Machine Learning. Washington, DC USA. (ICML)  (PDF)

Rong Jin, Luo Si and ChengXiang Chai. (2003). "Preference-based Graphic Models for Collaborative Filtering" In Proceedings of the Nineteenth Conference on Uncertainty in Artificial Intelligence. Acapulco, Mexico. (UAI) (PS) (PDF)

Luo Si and Jamie Callan. (2003). "Relevant Document Distribution Estimation Method for Resource Selection" In Proceedings of the Twenty Fifth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval. Toronto, Canada: ACM. (SIGIR) (PDF)

Luo Si and Jamie Callan. (2003). "The effect of database size distribution on resource selection algorithms." In SIGIR 2003 Workshop on Distributed Information Retrieval . Toronto, Canada: ACM. (SIGIR Workshop on Distributed Information Retrieval) (PS) (PDF)

Luo Si, Jie Lu and Jamie Callan. (2003). "Distributed Information Retrieval With Skewed Database Size Distributions" In Proceedings of the8:36 PM 10/8/2003 NSF's National Conference on Digital Government Research (dg.o2003) (Dg.O) (PS) (PDF)

2002:

Luo Si, Rong Jin, Jamie Callan and Paul Ogilvie. (2002). "A Language Model Framework for Resource Selection and Results Merging" In Proceedings of the 11th International Conference on Information and Knowledge Management. (CIKM) ACM. (PS) (PDF)

Luo Si and Jamie Callan. (2002). "Using Sampled Data and Regression to Merger Search Engine Results" In Proceedings of the Twenty Fourth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval. Tampere. Finland: ACM. (SIGIR) (PS)

Rong Jin, Luo Si, Alex G. Hauptmann, Jamie Callan. (2002). "Language Model for IR Using Collection Information" In Proceedings of the Twenty Fourth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval. Tampere. Finland: ACM. (SIGIR) (PS)

2001:

Luo Si and Jamie Callan. (2001).  "A statistical model for scientific readability." In Proceedings of the 10th International Conference on Information and Knowledge Management. (CIKM) ACM. (PS)

Luo Si and Jamie Callan. (2001).  "Named Entity Recognition"  Technical Report  Language Technology Institute, School of Computer Science, Carnegie Mellon University.

2000 and Before:

Luo Si and Qixiu Hu. (2000).  "Two-Stage Speaker Identification System Based On VQ and NBDGMM" ICSLP 2000. (6th International Conference on Spoken Language Processing)  (ICSLP)

Luo Si, Qixiu Hu, Qin Jin. (1999)  "Speaker Identification via FVC" ISSPIS’99 (1999 International Symposium on Signal Processing and Intelligent System)(ISSPIS)

Luo Si, Qixiu Hu, Qin Jin. (1999)  "A Desirable Features Combination Method"  ISSPIS’99 (1999 International Symposium on Signal Processing and Intelligent System)(ISSPIS)

Jin Qin, Si Luo, Hu Qixiu. (1998)  "A High-Performance Text-Independent Speaker Identification System Based On BCDM" ICSLP’1998. (5th International Conference on Spoken Language Processing) (ICSLP)

Luo Si, Qixiu Hu, Qin Jin. (1999)  "An Unsupervised Speaker Segmentation Method During Dialogue" Signal Processing, Vol.15, pp238-241. (Chinese)

Luo Si, Qixiu Hu, Qin Jin. (1999) "A New Distance Estimation and Codebook Training Algorithm for Speaker Recognition" NCMT’1999. (8th National Conference on Multimedia Technology) (Chinese)

Jin Qin, Hu Qixiu Si Luo. (1999) "A New Set of Feathers Based on Non-All-Pole Model" Ncmmsc’1998 (5th National Conference on Man-Machine Speech Communication) (Chinese)

Luo Si, Qixiu Hu, Qin Jin. (1999) "Different Algorithms of BCDM for Speaker Identification" Ncmmsc’1998 (5th National Conference on Man-Machine Speech Communication) (Chinese)

Hu Qixiu and Si Luo. (1997) "A New Noise Reduction Algorithm" NCCIIIA’1997 (3rd National Conference of Intelligent Interface and Intelligent Application). (Chinese)