2023

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Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining, WSDM 2023, Singapore, 27 February 2023 - 3 March 2023

Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining, WSDM 2023, Singapore, 27 February 2023 - 3 March 2023

2022

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Relation Extraction as Open-book Examination: Retrieval-enhanced Prompt Tuning
Xiang Chen | Lei Li | Ningyu Zhang | Chuanqi Tan | Fei Huang | Luo Si | Huajun Chen
SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

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Hybrid Transformer with Multi-level Fusion for Multimodal Knowledge Graph Completion
Xiang Chen | Ningyu Zhang | Lei Li | Shumin Deng | Chuanqi Tan | Changliang Xu | Fei Huang | Luo Si | Huajun Chen
SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

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Unified Dialog Model Pre-training for Task-Oriented Dialog Understanding and Generation
Wanwei He | Yinpei Dai | Min Yang | Jian Sun | Fei Huang | Luo Si | Yongbin Li
SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

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KnowPrompt: Knowledge-aware Prompt-tuning with Synergistic Optimization for Relation Extraction
Xiang Chen | Ningyu Zhang | Xin Xie | Shumin Deng | Yunzhi Yao | Chuanqi Tan | Fei Huang | Luo Si | Huajun Chen
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

2021

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Similar Trademark Detection via Semantic, Phonetic and Visual Similarity Information
Yingchi Liu | Quanzhi Li | Changlong Sun | Luo Si
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

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Relational Learning with Gated and Attentive Neighbor Aggregator for Few-Shot Knowledge Graph Completion
Guanglin Niu | Yang Li | Chengguang Tang | Ruiying Geng | Jian Dai | Qiao Liu | Hao Wang | Jian Sun | Fei Huang | Luo Si
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

2019

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Proceedings of the SIGIR 2017 Workshop On eCommerce co-located with the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, eCOM@SIGIR 2017, Tokyo, Japan, August 11, 2017

Proceedings of the SIGIR 2017 Workshop On eCommerce co-located with the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, eCOM@SIGIR 2017, Tokyo, Japan, August 11, 2017

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IDST at TREC 2019 Deep Learning Track: Deep Cascade Ranking with Generation-based Document Expansion and Pre-trained Language Modeling
Ming Yan | Chenliang Li | Chen Wu | Bin Bi | Wei Wang | Jiangnan Xia | Luo Si
Proceedings of the Twenty-Eighth Text REtrieval Conference, TREC 2019, Gaithersburg, Maryland, USA, November 13-15, 2019

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Finding Camouflaged Needle in a Haystack?: Pornographic Products Detection via Berrypicking Tree Model
Guoxiu He | Yangyang Kang | Zhe Gao | Zhuoren Jiang | Changlong Sun | Xiaozhong Liu | Wei Lu | Qiong Zhang | Luo Si
Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2019, Paris, France, July 21-25, 2019

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Legal Intelligence for E-commerce: Multi-task Learning by Leveraging Multiview Dispute Representation
Xin Zhou | Yating Zhang | Xiaozhong Liu | Changlong Sun | Luo Si
Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2019, Paris, France, July 21-25, 2019

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Sexual Harassment Story Classification and Key Information Identification
Yingchi Liu | Quanzhi Li | Xiaozhong Liu | Qiong Zhang | Luo Si
Proceedings of the 28th ACM International Conference on Information and Knowledge Management, CIKM 2019, Beijing, China, November 3-7, 2019

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TweetSenti: Target-dependent Tweet Sentiment Analysis
Quanzhi Li | Qiong Zhang | Luo Si
The World Wide Web Conference, WWW 2019, San Francisco, CA, USA, May 13-17, 2019

2018

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An Adversarial Joint Learning Model for Low-Resource Language Semantic Textual Similarity
Junfeng Tian | Man Lan | Yuanbin Wu | Jingang Wang | Long Qiu | Sheng Li | Jun Lang | Luo Si
Advances in Information Retrieval - 40th European Conference on IR Research, ECIR 2018, Grenoble, France, March 26-29, 2018, Proceedings

2017

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Report on the SIGIR 2017 Workshop on eCommerce (ECOM17)
Jon Degenhardt | Surya Kallumadi | Yiu-Chang Lin | Maarten de Rijke | Luo Si | Andrew Trotman | Sindhuja Venkatesh | Yinghui Xu
2017 Volume 51 Issue 3

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Detecting temporal patterns of user queries
Pengjie Ren | Zhumin Chen | Jun Ma | Zhiwei Zhang | Luo Si | Shuaiqiang Wang
2017 Volume 68 Issue 1

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SIGIR 2017 Workshop on eCommerce (ECOM17)
Jon Degenhardt | Surya Kallumadi | Maarten de Rijke | Luo Si | Andrew Trotman | Yinghui Xu
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

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Recommending Complementary Products in E-Commerce Push Notifications with a Mixture Model Approach
Huasha Zhao | Luo Si | Xiaogang Li | Qiong Zhang
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

2016

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Learning for Efficient Supervised Query Expansion via Two-stage Feature Selection
Zhiwei Zhang | Qifan Wang | Luo Si | Jianfeng Gao
Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016

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Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016

Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016

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Supervised Local Contexts Aggregation for Effective Session Search
Zhiwei Zhang | Jingang Wang | Tao Wu | Pengjie Ren | Zhumin Chen | Luo Si
Advances in Information Retrieval - 38th European Conference on IR Research, ECIR 2016, Padua, Italy, March 20-23, 2016. Proceedings

2015

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Related entity finding by unified probabilistic models
Yi Fang | Luo Si
2015 Volume 18 Issue 3

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Latent Discriminative Models for Social Emotion Detection with Emotional Dependency
Xiaojun Quan | Qifan Wang | Ying Zhang | Luo Si | Wenyin Liu
2015 Volume 34 Issue 1

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An Entity Class-Dependent Discriminative Mixture Model for Cumulative Citation Recommendation
Jingang Wang | Dandan Song | Qifan Wang | Zhiwei Zhang | Luo Si | Lejian Liao | Chin-Yew Lin
Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, Santiago, Chile, August 9-13, 2015

2014

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PIR 2014 The First International Workshop on Privacy-Preserving IR: When Information Retrieval Meets Privacy and Security
Luo Si | Hui Yang
2014 Volume 48 Issue 2

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User Comment Analysis for Android apps and CSPI Detection with Comment Expansion
Lei Cen | Luo Si | Ninghui Li | Hongxia Jin
Proceeding of the 1st International Workshop on Privacy-Preserving IR: When Information Retrieval Meets Privacy and Security co-located with 37th Annual International ACM SIGIR conference, PIR@SIGIR 2014, Gold Coast, Australia, July 11, 2014

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Proceeding of the 1st International Workshop on Privacy-Preserving IR: When Information Retrieval Meets Privacy and Security co-located with 37th Annual International ACM SIGIR conference, PIR@SIGIR 2014, Gold Coast, Australia, July 11, 2014

Proceeding of the 1st International Workshop on Privacy-Preserving IR: When Information Retrieval Meets Privacy and Security co-located with 37th Annual International ACM SIGIR conference, PIR@SIGIR 2014, Gold Coast, Australia, July 11, 2014

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BIT and Purdue at TREC-KBA-CCR Track 2014
Jingang Wang | Ning Zhang | Zhiwei Zhang | Dandan Song | Luo Si | Lejian Liao
Proceedings of The Twenty-Third Text REtrieval Conference, TREC 2014, Gaithersburg, Maryland, USA, November 19-21, 2014

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Privacy-preserving IR: when information retrieval meets privacy and security
Luo Si | Hui Yang
The 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR '14, Gold Coast , QLD, Australia - July 06 - 11, 2014

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Cross-domain and cross-category emotion tagging for comments of online news
Ying Zhang | Ning Zhang | Luo Si | Yanshan Lu | Qifan Wang | Xiaojie Yuan
The 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR '14, Gold Coast , QLD, Australia - July 06 - 11, 2014

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Active hashing with joint data example and tag selection
Qifan Wang | Luo Si | Zhiwei Zhang | Ning Zhang
The 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR '14, Gold Coast , QLD, Australia - July 06 - 11, 2014

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Preference preserving hashing for efficient recommendation
Zhiwei Zhang | Qifan Wang | Lingyun Ruan | Luo Si
The 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR '14, Gold Coast , QLD, Australia - July 06 - 11, 2014

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Sparse Semantic Hashing for Efficient Large Scale Similarity Search
Qifan Wang | Bin Shen | Zhiwei Zhang | Luo Si
Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, CIKM 2014, Shanghai, China, November 3-7, 2014

2013

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Forecasting user visits for online display advertising
Suleyman Cetintas | Datong Chen | Luo Si
2013 Volume 16 Issue 3

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Author disambiguation by hierarchical agglomerative clustering with adaptive stopping criterion
Lei Cen | Eduard C. Dragut | Luo Si | Mourad Ouzzani
The 36th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '13, Dublin, Ireland - July 28 - August 01, 2013

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Search result diversification in resource selection for federated search
Dzung Hong | Luo Si
The 36th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '13, Dublin, Ireland - July 28 - August 01, 2013

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Semantic hashing using tags and topic modeling
Qifan Wang | Dan Zhang | Luo Si
The 36th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '13, Dublin, Ireland - July 28 - August 01, 2013

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Learning compact hashing codes for efficient tag completion and prediction
Qifan Wang | Lingyun Ruan | Zhiwei Zhang | Luo Si
22nd ACM International Conference on Information and Knowledge Management, CIKM'13, San Francisco, CA, USA, October 27 - November 1, 2013

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Probabilistic latent class models for predicting student performance
Suleyman Cetintas | Luo Si | Yan Ping Xin | Ron Tzur
22nd ACM International Conference on Information and Knowledge Management, CIKM'13, San Francisco, CA, USA, October 27 - November 1, 2013

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Weighted hashing for fast large scale similarity search
Qifan Wang | Dan Zhang | Luo Si
22nd ACM International Conference on Information and Knowledge Management, CIKM'13, San Francisco, CA, USA, October 27 - November 1, 2013

2012

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Sentiment detection with auxiliary data
Dan Zhang | Luo Si | Vernon Rego
2012 Volume 15 Issue 3-4

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Expertise Retrieval
Krisztian Balog | Yi Fang | Maarten de Rijke | Pavel Serdyukov | Luo Si
2012 Volume 6 Issue 2-3

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Effective query generation and postprocessing strategies for prior art patent search
Suleyman Cetintas | Luo Si
2012 Volume 63 Issue 3

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Mining contrastive opinions on political texts using cross-perspective topic model
Yi Fang | Luo Si | Naveen Somasundaram | Zhengtao Yu
Proceedings of the Fifth International Conference on Web Search and Web Data Mining, WSDM 2012, Seattle, WA, USA, February 8-12, 2012

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Emotion tagging for comments of online news by meta classification with heterogeneous information sources
Ying Zhang | Yi Fang | Xiaojun Quan | Lin Dai | Luo Si | Xiaojie Yuan
The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012

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Mixture model with multiple centralized retrieval algorithms for result merging in federated search
Dzung Hong | Luo Si
The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012

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A latent pairwise preference learning approach for recommendation from implicit feedback
Yi Fang | Luo Si
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

2011

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Discriminative probabilistic models for expert search in heterogeneous information sources
Yi Fang | Luo Si | Aditya P. Mathur
2011 Volume 14 Issue 2

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Federated Search
Milad Shokouhi | Luo Si
2011 Volume 5 Issue 1

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Query Expansion and Message-Passing Algorithms for TREC Microblog Track
Dzung Hong | Qifan Wang | Dan Zhang | Luo Si
Proceedings of The Twentieth Text REtrieval Conference, TREC 2011, Gaithersburg, Maryland, USA, November 15-18, 2011

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Machine learning for information retrieval
Luo Si | Rong Jin
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Forecasting counts of user visits for online display advertising with probabilistic latent class models
Suleyman Cetintas | Datong Chen | Luo Si | Bin Shen | Zhanibek Datbayev
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Identifying similar people in professional social networks with discriminative probabilistic models
Suleyman Cetintas | Monica Rogati | Luo Si | Yi Fang
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Analysis of an expert search query log
Yi Fang | Naveen Somasundaram | Luo Si | Jeongwoo Ko | Aditya P. Mathur
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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A weighted curve fitting method for result merging in federated search
Chuan He | Dzung Hong | Luo Si
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Document clustering with universum
Dan Zhang | Jingdong Wang | Luo Si
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Composite hashing with multiple information sources
Dan Zhang | Fei Wang | Luo Si
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

2010

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Probabilistic models for answer-ranking in multilingual question-answering
Jeongwoo Ko | Luo Si | Eric Nyberg | Teruko Mitamura
2010 Volume 28 Issue 3

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Discriminative graphical models for faculty homepage discovery
Yi Fang | Luo Si | Aditya P. Mathur
2010 Volume 13 Issue 6

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Combining evidence with a probabilistic framework for answer ranking and answer merging in question answering
Jeongwoo Ko | Luo Si | Eric Nyberg
2010 Volume 46 Issue 5

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Purdue at TREC 2010 Entity Track: A Probabilistic Framework for Matching Types Between Candidate and Target Entities
Yi Fang | Luo Si | Naveen Somasundaram | Salman Al-Ansari | Zhengtao Yu | Yantuan Xian
Proceedings of The Nineteenth Text REtrieval Conference, TREC 2010, Gaithersburg, Maryland, USA, November 16-19, 2010

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Discriminative models of integrating document evidence and document-candidate associations for expert search
Yi Fang | Luo Si | Aditya P. Mathur
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

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A joint probabilistic classification model for resource selection
Dzung Hong | Luo Si | Paul J. Bracke | Michael Witt | Tim Juchcinski
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

2009

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Strategies for Effective Chemical Information Retrieval
Suleyman Cetintas | Luo Si
Proceedings of The Eighteenth Text REtrieval Conference, TREC 2009, Gaithersburg, Maryland, USA, November 17-20, 2009

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Entity Retrieval with Hierarchical Relevance Model, Exploiting the Structure of Tables and Learning Homepage Classifiers
Yi Fang | Luo Si | Zhengtao Yu | Yantuan Xian | Yangbo Xu
Proceedings of The Eighteenth Text REtrieval Conference, TREC 2009, Gaithersburg, Maryland, USA, November 17-20, 2009

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Modeling search response time
Dan Zhang | Luo Si
Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2009, Boston, MA, USA, July 19-23, 2009

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Learning from past queries for resource selection
Suleyman Cetintas | Luo Si | Hao Yuan
Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009

2008

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An effective and efficient results merging strategy for multilingual information retrieval in federated search environments
Luo Si | Jamie Callan | Suleyman Cetintas | Hao Yuan
2008 Volume 11 Issue 1

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Combining gene sequence similarity and textual information for gene function annotation in the literature
Luo Si | Danni Yu | Daisuke Kihara | Yi Fang
2008 Volume 11 Issue 5

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Discriminative probabilistic models for passage based retrieval
Mengqiu Wang | Luo Si
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008

2007

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Federated search of text search engines in uncooperative environments
Luo Si
2007 Volume 41 Issue 1

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Protecting source privacy in federated search
Wei Jiang | Luo Si | Jing Li
SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007

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Exploration of the tradeoff between effectiveness and efficiency for results merging in federated search
Suleyman Cetintas | Luo Si
SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007

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A probabilistic graphical model for joint answer ranking in question answering
Jeongwoo Ko | Eric Nyberg | Luo Si
SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007

2006

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A study of mixture models for collaborative filtering
Rong Jin | Luo Si | Chengxiang Zhai
2006 Volume 9 Issue 3

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The FedLemur project: Federated search in the real world
Thi Truong Avrahami | Lawrence Yau | Luo Si | James P. Callan
2006 Volume 57 Issue 3

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Knowledge Transfer and Opinion Detection in the TREC 2006 Blog Track
Hui Yang | Jamie Callan | Luo Si
Proceedings of the Fifteenth Text REtrieval Conference, TREC 2006, Gaithersburg, Maryland, USA, November 14-17, 2006

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Combining Multiple Resources, Evidences and Criteria for Genomic Information Retrieval
Luo Si | Jie Lu | Jamie Callan
Proceedings of the Fifteenth Text REtrieval Conference, TREC 2006, Gaithersburg, Maryland, USA, November 14-17, 2006

2005

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CLEF 2005: Multilingual Retrieval by Combining Multiple Multilingual Ranked Lists
Luo Si | Jamie Callan
Working Notes for CLEF 2005 Workshop co-located with the 9th European Conference on Digital Libraries (ECDL 2005), Wien, Austria, September 21-22, 2005

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CLEF 2005: Multilingual Retrieval by Combining Multiple Multilingual Ranked Lists
Luo Si | Jamie Callan
Accessing Multilingual Information Repositories, 6th Workshop of the Cross-Language Evalution Forum, CLEF 2005, Vienna, Austria, 21-23 September, 2005, Revised Selected Papers

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York University at TREC 2005: Genomics Track
Xiangji Huang | Ming Zhong | Luo Si
Proceedings of the Fourteenth Text REtrieval Conference, TREC 2005, Gaithersburg, Maryland, USA, November 15-18, 2005

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Thresholding Strategies for Text Classifiers: TREC 2005 Biomedical Triage Task Experiments
Luo Si | Tapas Kanungo
Proceedings of the Fourteenth Text REtrieval Conference, TREC 2005, Gaithersburg, Maryland, USA, November 15-18, 2005

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Modeling search engine effectiveness for federated search
Luo Si | Jamie Callan
SIGIR 2005: Proceedings of the 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Salvador, Brazil, August 15-19, 2005

2004

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A study of methods for normalizing user ratings in collaborative filtering
Rong Jin | Luo Si
SIGIR 2004: Proceedings of the 27th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Sheffield, UK, July 25-29, 2004

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Effect of varying number of documents in blind feedback: analysis of the 2003 NRRC RIA workshop "bf_numdocs" experiment suite
Jesse Montgomery | Luo Si | Jamie Callan | David A. Evans
SIGIR 2004: Proceedings of the 27th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Sheffield, UK, July 25-29, 2004

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An automatic weighting scheme for collaborative filtering
Rong Jin | Joyce Y. Chai | Luo Si
SIGIR 2004: Proceedings of the 27th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Sheffield, UK, July 25-29, 2004

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Unified filtering by combining collaborative filtering and content-based filtering via mixture model and exponential model
Luo Si | Rong Jin
Proceedings of the 2004 ACM CIKM International Conference on Information and Knowledge Management, Washington, DC, USA, November 8-13, 2004

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Unified utility maximization framework for resource selection
Luo Si | James P. Callan
Proceedings of the 2004 ACM CIKM International Conference on Information and Knowledge Management, Washington, DC, USA, November 8-13, 2004

2003

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A semisupervised learning method to merge search engine results
Luo Si | Jamie Callan
2003 Volume 21 Issue 4

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The Effect of Database Size Distribution on Resource Selection Algorithms
Luo Si | Jamie Callan
Distributed Multimedia Information Retrieval, SIGIR 2003 Workshop on Distributed Information Retrieval, Toronto, Canada, August 1, 2003, Revised Selected and Invited Papers

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Relevant document distribution estimation method for resource selection
Luo Si | James P. Callan
SIGIR 2003: Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, July 28 - August 1, 2003, Toronto, Canada

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Collaborative filtering with decoupled models for preferences and ratings
Rong Jin | Luo Si | ChengXiang Zhai | James P. Callan
Proceedings of the 2003 ACM CIKM International Conference on Information and Knowledge Management, New Orleans, Louisiana, USA, November 2-8, 2003

2002

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Language model for IR using collection information
Rong Jin | Luo Si | Alexander G. Hauptmann | James P. Callan
SIGIR 2002: Proceedings of the 25th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, August 11-15, 2002, Tampere, Finland

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Using sampled data and regression to merge search engine results
Luo Si | James P. Callan
SIGIR 2002: Proceedings of the 25th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, August 11-15, 2002, Tampere, Finland

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A language modeling framework for resource selection and results merging
Luo Si | Rong Jin | James P. Callan | Paul Ogilvie
Proceedings of the 2002 ACM CIKM International Conference on Information and Knowledge Management, McLean, VA, USA, November 4-9, 2002

2001

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A Statistical Model for Scientific Readability
Luo Si | James P. Callan
Proceedings of the 2001 ACM CIKM International Conference on Information and Knowledge Management, Atlanta, Georgia, USA, November 5-10, 2001