Chapter # Query Modulation for Web-based Question Answering (2009)
Dragomir R. Radev, Hong Qi, Zhiping Zheng, Sasha Blair-goldensohn, Zhu Zhang, Weiguo Fan, ...
Abstract: The web is now becoming one of the largest information and knowledge repositories. Many large scale search engines (Google, Fast, Northern Light, etc.) have emerged to help users find...
Sasha Blair-goldensohn, Kathleen R. Mckeown, Andrew Hazen Schlaikjer
Much of the effort in Question Answering (QA) has gone into building short answer QA systems, which answer questions for which the correct answer is a single word or short phrase. However, there are...
Building and Refining Rhetorical-Semantic Relation Models (2008)
Sasha Blair-goldensohn, Google Inc
We report results of experiments which build and refine models of rhetoricalsemantic relations such as Cause and Contrast. We adopt the approach of Marcu and Echihabi (2002), using a small set of...
Sasha Blair-goldensohn, David Evans, Vasileios Hatzivassiloglou, Kathleen Mckeown, Ani Nenkova, Rebecca Passonneau, ...
We describe our participation in tasks 2, 4 and 5 of the DUC 2004 evaluation. For each task, we present the system(s) used, focusing on novel and newly developed aspects. We also analyze the results...
Sasha Blair-goldensohn, David Evans, Vasileios Hatzivassiloglou, Kathleen Mckeown, Ani Nenkova, Rebecca Passonneau, ...
We describe our participation in tasks 2, 4 and 5 of the DUC 2004 evaluation. For each task, we present the system(s) used, focusing on novel and newly developed aspects. We also analyze the results...
Building and Refining Rhetorical-Semantic Relation Models (2008)
Sasha Blair-goldensohn, Google Inc
We report results of experiments which build and refine models of rhetoricalsemantic relations such as Cause and Contrast. We adopt the approach of Marcu and Echihabi (2002), using a small set of...
IBM’s PIQUANT II in TREC2004 (2008)
Jennifer Chu-carroll, Krzysztof Czuba, John Prager, Sasha Blair-goldensohn
PIQUANT II, the system we used for TREC 2004, is a completely reengineered system whose core functionalities for answering factoid and list questions remain largely unchanged from previous years...
Dragomir R. Radev�ý, Sasha Blair-goldensohn, Zhu Zhang, Revathi Sundara Raghavaný
NEWSINESSENCE is a system for finding, visualizing and summarizing a topic-based cluster of news stories. In the generic scenario for NEWSINESSENCE, a user selects a single news story from a news Web...
Dragomir R. Radev�ý, Sasha Blair-goldensohn, Zhu Zhang, Revathi Sundara Raghavaný
NEWSINESSENCE is a system for finding, visualizing and summarizing a topic-based cluster of news stories. In the generic scenario for NEWSINESSENCE, a user selects a single news story from a news Web...
Steven Abney, Michael Collins, Amit Singhal, Answer Extraction In, Sasha Blair-goldensohn, Kathleen R. Mckeown, ...
gov/projects/duc/roadmapping.html.
Dragomir R. Radev, Sasha Blair-goldensohn, Zhu Zhang, Sundara Raghavan
Abstract. In this paper we present NewsInEssence, a fully deployed digital news system. A user selects a current news story of interest which is used as a seed article by NewsInEssence to nd in real...
Dragomir R. Radev, Hong Qi, Zhiping Zheng, Sasha Blair-goldensohn, Weiguo Fan, John Prager
The web is now becoming one of the largest information and knowledge repositories. Many large scale search engines (Google, Fast, Northern Light, etc.) have emerged to help users find information. In...
NewsInEssence: A System For Domain-Independent, (2007)
Sasha Blair-goldensohn, Zhu Zhang
this article and determines it to be related. This article is added to the initial cluster, from which the list of top keywords is drawn
A Hybrid Approach for QA Track Definitional Questions (2006)
Blair-Goldensohn, Sasha, McKeown, Kathleen R., Schlaikjer, Andrew H.
This paper presents an overview of DefScriber, a hybrid goal-driven and data-driven system for definitional questions that was developed at Columbia University. DefScriber combines knowledge-based...
From Definitions to Complex Topics: Columbia University at 2005 (2005)
We describe our work in adapting a system designed to answer definitional and biographical questions (i.e. "What/Who is X?") to the topic-focused summarization task of DUC 2005. We present...
Newsinessence: summarizing online news topics (2005)
Dragomir Radev, Jahna Otterbacher, Adam Winkel, Sasha Blair-goldensohn
These days, Internet users are frequently turning to the Web for news rather than going to traditional sources such as newspapers or television. This trend is likely to continue, according to a...
MEAD - a platform for multidocument multilingual text summarization (2004)
Dragomir Radev, Timothy Allison, Sasha Blair-goldensohn, John Blitzer, Arda Çelebi, Stanko Dimitrov, ...
This paper describes the functionality of MEAD, a comprehensive, public domain, open source, multidocument multilingual summarization environment that has been thus far downloaded by more than 500...
Columbia University at DUC 2004 (2004)
Sasha Blair-Goldensohn, David Evans, Vasileios Hatzivassiloglou, Kathleen Mckeown, Ani Nenkova, Rebecca Passonneau, ...
We describe our participation in tasks 2, 4 and 5 of the DUC 2004 evaluation. For each task, we present the system (s) used, focusing on novel and newly developed aspects. We also analyze the results...
MEAD - a platform for multidocument multilingual text summarization (2004)
Dragomir Radev Timothy, Timothy Allison, Sasha Blair-goldensohn, John Blitzer, Arda Çelebi, Stanko Dimitrov, ...
This paper describes the functionality of MEAD, a comprehensive, public domain, open source, multidocument multilingual summarization environment that has been thus far downloaded by more than 500...
MEAD - a platform for multidocument multilingual text summarization (2004)
Dragomir Radev, Timothy Allison, Sasha Blair-goldensohn, John Blitzer, Arda Çelebi, Stanko Dimitrov, ...
This paper describes the functionality of MEAD, a comprehensive, public domain, open source, multidocument multilingual summarization environment that has been thus far downloaded by more than 500...
MEAD - a platform for multidocument multilingual text summarization (2004)
Dragomir Radev, Timothy Allison, Sasha Blair-goldensohn, John Blitzer, Arda Çelebi, Stanko Dimitrov, ...
This paper describes the functionality of MEAD, a comprehensive, public domain, open source, multidocument multilingual summarization environment that has been thus far downloaded by more than 500...
A Hybrid Approach for Answering Definitional Questions (2003)
Blair-Goldensohn, Sasha, McKeown, Kathleen R., Schlaikjer, Andrew Hazen
We present DefScriber, a fully implemented system that combines knowledge-based and statistical methods in forming multi-sentence answers to open-ended definitional questions of the form, ``What is...
Columbia at the document understanding conference 2003 (2003)
Ani Nenkova, Barry Schiffman, Andrew Schlaiker, Sasha Blair-goldensohn, Regina Barzilay, Sergey Sigelman, ...
based on the multi-document summarization system that we developed for DUC 2002 (McKeown et al., 2002). It uses different summarization strategies depending on the
A Hybrid Approach for Answering Definitional Questions (2003)
Sasha Blair-goldensohn, Kathleen R. Mckeown, Andrew Hazen Schlaikjer
We present DefScriber, a fully implemented system that combines knowledgebased and statistical methods in forming multi-sentence answers to open-ended definitional questions of the form,...
Columbia at the Document Understanding Conference 2003 (2003)
Ani Nenkova Barry, Barry Schiffman, Andrew Schlaiker, Sasha Blair-goldensohn, Regina Barzilay, Sergey Sigelman, ...
Introduction The Columbia Summarizer for DUC 2003, Task 2, is based on the multi-document summarization system that we developed for DUC 2002 (McKeown et al., 2002). It uses different summarization...
A Hybrid Approach for Answering Definitional Questions (2003)
Sasha Blair-goldensohn, Kathleen R. Mckeown, Andrew Hazen Schlaikjer
We present DefScriber, a fully implemented system that combines knowledgebased and statistical methods in forming multi-sentence answers to open-ended definitional questions of the form, “What is...
A Hybrid Approach for QA Track Definitional Questions (2003)
Sasha Blair-goldensohn, Kathleen R. Mckeown, Andrew Hazen Schlaikjer
We present an overview of DefScriber, a system developed at Columbia University that combines knowledge-based and statistical methods to answer definitional questions of the form, “What is X? ”...
A Hybrid Approach for Answering Definitional Questions (2003)
Sasha Blair-goldensohn, Kathleen R. Mckeown, Andrew Hazen Schlaikjer
We present DefScriber, a fully implemented system that combines knowledgebased and statistical methods in forming multi-sentence answers to open-ended definitional questions of the form, “What is...
Towards CST-Enhanced Summarization (2002)
Zhu Zhang, Sasha Blair-Goldensohn, Dragomir R. Radev
In this paper, we propose to enhance the process of automatic extractive multi-document text summarization by taking into account cross-document structural relationships as posited in Cross-document...
Mining the web for answers to natural language questions (2001)
Dragomir R. Radev, Hong Qi, Zhiping Zheng, Sasha Blair-goldensohn, Weiguo Fan, John Prager
The web is now becoming one of the largest information and knowledge repositories. Many large scale search engines (Google, Fast, Northern Light, etc.) have emerged to help users find information. In...
Mining the web for answers to natural language questions (2001)
Dragomir R. Radev, Hong Qi, Zhiping Zheng, Sasha Blair-goldensohn, Weiguo Fan, John Prager
The web is now becoming one of the largest information and knowledge repositories. Many large scale search engines (Google, Fast, Northern Light, etc.) have emerged to help users find information. In...
Dragomir R. Radev, Sasha Blair-goldensohn, Zhu Zhang, Revathi Sundara Raghavan
NEWSINESSENCE is a system for finding, visualizing and summarizing a topic-based cluster of news stories. In the generic scenario for NEWSINESSENCE, a user selects a single news story from a news Web...
Dragomir R. Radev, Sasha Blair-goldensohn, Zhu Zhang, Revathi Sundara Raghavan
School of Information y
Experiments in single and multidocument summarization using MEAD (2001)
Dragomir R. Radev, Sasha Blair-goldensohn, Zhu Zhang
In this paper, we describe four experiments in text summarization. The first experiment involves the automatic creation of 120 multi-document summaries and 308 single-document summaries from a set of...
Mining the web for answers to natural language questions (2001)
Dragomir R. Radev, Hong Qi, Zhiping Zheng, Sasha Blair-goldensohn, Weiguo Fan, John Prager
The web is now becoming one of the largest information and knowledge repositories. Many large scale search engines (Google, Fast, Northern Light, etc.) have emerged to help users find information. In...
Dragomir R. Radev, Sasha Blair-goldensohn, Zhu Zhang, Sundara Raghavan
Abstract. In this paper we present NewsInEssence, a fully deployed digital news system. A user selects a current news story of interest which is used as a seed article by NewsInEssence to find in...
Mining the web for answers to natural language questions (2001)
Dragomir R. Radev, Hong Qi, Zhiping Zheng, Sasha Blair-goldensohn, Weiguo Fan, John Prager
The web is now becoming one of the largest information and knowledge repositories. Many large scale search engines (Google, Fast, Northern Light, etc.) have emerged to help users find information. In...