Posters and Demonstrations

This is a list of all accepted poster presentations and demonstrations at SIGIR 2007.

Please refer to poster and demo guidelines if you are giving a poster presentation or a demonstration.

Posters

Using Gradient Descent to Optimize Language Modeling Smoothing Parameters
Donald Metzler

Locality Discriminating Indexing for Document Classification
Weihong Deng, Jun Guo, Weiran Xu, Jiani Hu

Management of Keyword Variation with Frequency Based Generation of Word Forms in IR
Kimmo Kettunen

OMES: A New Evaluation Strategy Using Optimal Matching for Document Clustering
Xiaojun Wan

Revisiting the Dependence Language Model for Information Retrieval
Loic Maisonnasse, Eric Gaussier, Jean-Pierre Chevallet

Quantify Query Ambiguity using ODP metadata
Guang Qiu, Kangmiao Liu, Jiajun Bu, Chun Chen, Zhiming Kang

Combining Error-Correcting Output Codes and Model-Refinement for Text Categorization
Songbo Tan, Yuefen Wang

User-Oriented Text Segmentation Evaluation Measure
Martin Franz, J. Scott McCarley, Jian-Ming Xu

Story Segmentation of Broadcast News in Arabic, Chinese and English Using Multi-Window Features
Martin Franz, Jian-Ming Xu

Recommending Citations for Academic Papers
Trevor Strohman, W. Bruce Croft, David Jensen

Exploration of the Tradeoff between Effectiveness and Efficiency for Results Merging in Federated Search
Suleyman Cetintas, Luo Si

Understanding the Relationship of Information Need Specificity to Search Query Length
Nina Phan, Peter Bailey, Ross Wilkinson

An Effective Snippet Generation Method Using the Pseudo Relevance Feedback Technique
Hongkuk An, Jungyun Seo, Youngjoong Ko

Probability Ranking Principle via Optimal Expected Rank
Robert W.P. Luk, K. F. Wong, H. C. Wu

Combining Term-Based and Event-Based Matching for Question Answering
Michael Wiegand, Jochen L. Leidner, Dietrich Klakow

Confluence: Enhancing Contextual Desktop Search
Karl Anders Gyllstrom, Craig Soules, Alistair Veitch

Estimating the Value of Automatic Disambiguation
Paul Thomas, Tom Rowlands

A Generic Framework for Machine Transliteration
A Kumaran, Tobias Kellner

Where to Start Reading a Textual XML Document?
Jaap Kamps, Marijn Koolen, Mounia Lalmas

Novelty Detection Using Local Context Analysis
David E. Losada, Ronald T. Fernandez

Towards Robust Query Expansion: Model Selection In The Language Modeling Framework
Mattan Winaver, Oren Kurland, Carmel Domshlak

Automatic Classification of Web Pages into Bookmark Categories
Chris Staff, Ian Bugeja

What Emotions do News Articles Trigger in Their Readers?
Changhua Yang, Hsin-Hsi Chen, Kevin Hsin-Yih Lin

Evaluating Discourse-based Answer Extraction for Why-Question Answering
Lou Boves, Nelleke Oostdijk, Peter-Arno Coppen, Suzan Verberne

Topic Segmentation Using Weighted Lexical Links (WLL)
Patrice Bellot, Laurianne Sitbon

Lexical Analysis for Modeling Web Query Reformulation
Alessandro Bozzon, Paul - Alexandru Chirita, Claudiu S. Firan, Wolfgang Nejdl

Bridging the digital divide: Understanding information access practices in an Indian village community
Ramnath Bhat, Maxine Frank, David Frohlich, Matt Jones, Mounia Lalmas

BordaConsensus: a New Consensus Function for Soft Cluster Ensembles
Xavier Sevillano, Francesc Alias, Joan Claudi Socoro

A Flexible Retrieval System of Shapes in Binary Images
Gloria Bordogna, Luca Ghilardi, Simone Milesi, Marco Pagani

Semantic Text Classification of Disease Reporting
Bing Liu, Yi Zhang

Evaluating Relevant in Context: Document Retrieval with a Twist
Jaap Kamps, Mounia Lalmas, Jovan Pehcevski

IDF Revisited: A Simple New Derivation within the Robertson-Sparck Jones Probabilistic Model
Lillian Lee

Validity and Power of tTest for Comparing MAP and GMAP
Gordon V. Cormack, Thomas R. Lynam

Model-Averaged Latent Semantic Indexing
Miles Efron

Characterizing the Value of Personalizing Search
Jaime Teevan, Susan T. Dumais, Eric Horvitz

Improving Retrieval Accuracy by Weighting Document Types with Clickthrough Data
Peter C.K. Yeung, Charles L.A. Clarke, Stefan Buettcher

Protecting Source Privacy in Federated Search
Wei Jiang, Luo Si, Jing Li

Applying Ranking SVM in Query Relaxation
Ciya Liao, Thomas Chang

Learning to Rank Collections
Jingfang Xu, Xing Li

VideoReach: An Online Video Recommendation System
Bo Yang, Xian-Sheng Hua, Linjun Yang, Tao Mei, Shi-Qiang Yang, Shipeng Li

Modelling Epistemic Uncertainty in IR Evaluation
Murat Yakici, Mark Baillie, Ian Ruthven, Fabio Crestani

On the Importance of Preserving the Part-Order in Shape Retrieval
Bjorn Gottfried, Ole Osterhagen, Otthein Herzog, Arne Schuldt

The Relationship between IR Effectiveness Measures and User Satisfaction
Mark Sanderson, Paul Clough, Azzah Al-Maskari

A Multi-Criteria Content-based Filtering System
Gabriella Pasi, Gloria Bordogna, Robert Villa

Boosting Static Pruning of Inverted Files
Roi Blanco, Alvaro Barreiro

Resource Monitoring in Information Extraction
Jochen L. Leidner

The DILIGENT Framework for Distributed Information Retrieval
Fabio Crestani, Ralf Bierig, Fabio Simeoni

Varying Approaches to Topical Web Query Classification
Steven M Beitzel, Eric C Jensen, Abdur Chowdhury, Ophir Frieder

A Comparison of Pooled and Sampled Relevance Judgments
Ian Soboroff

Clustering Short Texts using Wikipedia
Somnath Banerjee, Krishnan Ramanathan, Ajay Gupta

Estimating Collection size with logistic regression
Sheng Wu, Xing Li, Jingfang Xu

Selection and Ranking of Text from Highly Imperfect Transcripts for Retrieval of Video Content
Alexander Haubold

Enhancing Patent Retrieval by Citation Analysis
Atsushi Fujii

MRF based Approach for Sentence Retrieval
Chun Chen, Kangmiao Liu, Jiajun Bu, Peng Huang, Keke Cai

Improving Weak Ad-Hoc Queries using Wikipedia as External Corpus
Wing Pong Robert Luk, Kei Shiu Edward Ho, Fu Lai Korris Chung, Yinghao Li

Fine-Grained Named Entity Recognition and Relation Extraction for Question Answering
Changki Lee, Yi-Gyu Hwang, Myung-Gil Jang

World Knowledge in Broad-Coverage Information Filtering
Bennett A. Hagedorn, Massimiliano Ciaramita, Jordi Atserias

The Influence of Basic Tokenization on Biomedical Document Retrieval
Wessel Kraaij, Franciska de Jong, Dolf Trieschnigg

Using Clustering to Enhance Text Classification
Theodore Kalamboukis, Antonia Kyriakopoulou

A Fact/Opinion Classifier for News Articles
Vibhu Mittal, Adam Stepinski, Adam Stepinski

Matching Resumes and Jobs Based on Relevance Models
Xing Yi, James Allan, W. Bruce Croft

The Utility of Linguistic Rules in Opinion Mining
Xiaowen Ding, Bing Liu

A Comparison of Sentence Retrieval Techniques
Niranjan Balasubramanian, James Allan, Bruce W. Croft

High-Dimensional Visual Vocabularies for Image Retrieval
Stefan Rueger, Joao Magalhaes

A Web Page Topic Segmentation Algorithm Based on Visual Criteria and Content Layout
Bich-Lien Doan, Idir Chibane

Document Clustering - an Optimization Problem
Ao Feng

Finding Similar Experts
Krisztian Balog, Maarten de Rijke

Active Learning for Class Imbalance Problem
Seyda Ertekin, Jian Huang, C. Lee Giles

Strategies for Retrieving Plagiarized Documents
Benno Stein, Sven Meyer zu Eissen, Martin Potthast

Generative Modeling of Persons and Documents for Expert Search
Pavel Serdyukov, Djoerd Hiemstra, Maarten Fokkinga, Peter M.G. Apers

Random Walk Term Weighting for Information Retrieval
Christina Lioma, Roi Blanco

Comparing Query Logs and Pseudo-Relevance Feedbackfor Web-Search Query Refinement
Ryen W White, Charles L. A. Clarke, Silviu Cucerzan

Automatic Extension of Non-English WordNets
Katja Hofmann, Erik Tjong Kim Sang

First Experiments Searching Spontaneous Czech Speech
Pavel Ircing, Douglas W. Oard, Jan Hoidekr

Power and Bias of Subset Pooling Strategies
Gordon V. Cormack, Thomas R. Lynam

Problems with Kendall's Tau
Ian Soboroff, Mark Sanderson

Opinion Holder Extraction from Author and Authority Viewpoints
Yohei Seki

Incorporating Term Dependency in the DFR Framework
Craig Macdonald, Ben He, Vassilis Plachouras, Iadh Ounis, Jie Peng

HITS on Question Answer Portals: Exploration of Link Analysis for Author Ranking
Pawel Jurczyk, Eugene Agichtein

Heads and Tails: Studies of Web Search with Common and Rare Queries
Doug Downey, Susan Dumais, Eric Horvitz

Dimensionality Reduction for Dimension-specific Search
Hengtao Shen, Xiaofang Zhou, Dawei Song, Stefan Rueger, Zi Huang

An Effective Method for Finding Best Entry Points in Semi-Structured Documents
Pierre-Francois Marteau, Gildas Menier, Eugen Popovici

Query Rewriting using Active Learning for Sponsored Search
Xiaofei He, Benjamin Rey, Wei Vivian Zhang, Rosie Jones

An Analysis of Peer-to-Peer File-Sharing System Queries
Linh Thai Nguyen, Dongmei Jia, Wai Gen Yee, Ophir Frieder

Investigating the Relevance of Sponsored Results for Web Ecommerce Queries
Bernard J. Jansen

Viewing Online Searching Within a Learning Paradigm
Brian Smith, Danielle L. Booth, Bernard J. Jansen

More Efficient Parallel Computation of PageRank
John R. Wicks, Amy Greenwald

Using Similarity Links as Shortcuts to Relevant Web Pages
Mark D. Smucker, James Allan

Fast Exact Maximum Likelihood Estimation for Mixture of Language Models
Yi Zhang, Wei Xu

TimedTextRank: Adding the Temporal Dimension to Multi-Document Summarization
Xiaojun Wan

Winnowing Wheat from the Chaff - Propagating Trust to Sift Spam from the Web
Lan Nie, Baoning Wu, Brian D. Davison

Feature Engineering for Mobile (SMS) Spam Filtering
Gordon V Cormack, Jose Maria Gomez Hidalgo, Enrique Puertas Sanz

Ranking by Community Relevance
Lan Nie, Brian D. Davison, Baoning Wu

Query Suggestion based on User Landing Pages
Silviu Cucerzan, Ryen W. White

Making Mind and Machine Meet - A Study of Combining Cognitive and Algorithmic Relevance Feedback
Chirag Shah, Diane Kelly, Xin Fu

Using Collaborative Queries to Improve Retrieval for Difficult Topics
Xin Fu, Diane Kelly, Chirag Shah

Retrieval of Discussions from Enterprise Mailing Lists
Maheedhar Kolla, Olga Vechtomova

Effects of Highly Agreed Documents in Relevancy Prediction
Andres R. Masegosa, Hideo Joho, Joemon M. Jose

Detecting Word Substitutions: PMI vs. HMM
SzeWang Fong, David Skillicorn, Dmitri Roussinov

Workload Sampling for Enterprise Search Evaluation
David Hawking, Ramesh Sankaranarayana, Tom Rowlands

Document Layout and Color Driven Image Retrieval
Pere Obrador

Large-Scale Cluster-Based Retrieval Experiments on Turkish Texts
Ismail Sengor Altingovde, Rifat Ozcan, Huseyin Cagdas Ocalan, Fazli Can, Ozgur Ulusoy

Improving Active Learning Recall via Disjunctive Boolean Constraints
Emre Velipasaoglu, Hinrich Schuetze, Jan O. Pedersen

Creativity Support: Information Discovery and Exploratory Search
Eunyee Koh, Andruid Kerne, Rodney Hill

Demonstrations

MQX: Multi-Query Engine for Compressed XML Data
Aoying Zhou, Juzhen He, Wilfred Ng, Xiaoling Wang

ISKODOR: Unified User Modeling for Integrated Searching
Melanie Gnasa, Armin B. Cremers, Douglas W. Oard

Babel: A Machine Transliteration Workbench
A Kumaran, Tobias Kellner

X-Site: A Workplace Search Tool for Software Engineers
Peter C.K. Yeung, Luanne Freund, Charles L.A. Clarke

The Wild Thing Goes Local
Kenneth Ward Church, Bo Thiesson

DiscoverInfo: A Tool for Discovering Information with Relevance and Novelty
Chirag Shah, Gary Marchionini

Radio Oranje: Searching the Queen's Speech(es)
Laurens van der Werff, Roeland Ordelman, Arjan van Hessen, Franciska de Jong, Willemijn Heeren

Mobile Interface of the MEMORIA Project
Rui Jesus, Rute Frias, Nuno Correia, Ricardo Dias

A Full-Text Retrieval Toolkit for Mobile Desktop Search
Wei Chen, Jiajun Bu, Kangmiao Liu, Chun Chen, Chen Zhang

EXPOSE: Searching the Web for Expertise
Holger Schwarz, Mihaly Jakob, Fabian Kaiser

Text Categorization for Streams
D.L. Thomas, W.J. Teahan

Search Results using Timeline Visualizations
Michael Gertz, Ricardo Baeza-Yates, Omar Alonso

Wikipedia in the Pocket
Martin Potthast

Nexus: A Real Time QA System
Kisuh Ahn, Bonnie Webber

Geographic Ranking for a Local Search Engine
Tony Abou-Assaleh, Weizheng Gao

Focused Ranking in a Vertical Search Engine
Philip O'Brien, Tony Abou-Assaleh

A "Do-It-Yourself" Evaluation Service for Music Information Retrieval Systems
M Cameron Jones, Mert Bay, J Stephen Downie, Andreas F. Ehmann

IR-Toolbox: an experiential learning tool for teaching IR
Efthimis N. Efthimiadis, Nathan G. Freier