Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 11 - 20
of
2,014
Effects of Adjective Orientation and Gradability on Sentence Subjectivity
, 2000
"... Subjectivity is a pragmatic, sentence-level feature that has important implications lhr text processing applications such as information extraction and information retrieval. We study the effects of dynamic adjectives, semantically oriented adjectives, and gradable adjectives ou a simple subjectivit ..."
Abstract
-
Cited by 179 (4 self)
- Add to MetaCart
Subjectivity is a pragmatic, sentence-level feature that has important implications lhr text processing applications such as information extraction and information retrieval. We study the effects of dynamic adjectives, semantically oriented adjectives, and gradable adjectives ou a simple
Applying Associative Retrieval Techniques to Alleviate the Sparsity Problem in Collaborative Filtering
- ACM Transactions on Information Systems
, 2004
"... this article, we propose to deal with this sparsity problem by applying an associative retrieval framework and related spreading activation algorithms to explore transitive associations among consumers through their past transactions and feedback. Such transitive associations are a valuable source o ..."
Abstract
-
Cited by 135 (12 self)
- Add to MetaCart
of information to help infer consumer interests and can be explored to deal with the sparsity problem. To evaluate the effectiveness of our approach, we have conducted an experimental study using a data set from an online bookstore. We experimented with three spreading activation algorithms including a
Generalizing GlOSS to Vector-Space Databases and Broker Hierarchies
, 1995
"... As large numbers of text databases have become available on the Internet, it is getting harder to locate the right sources for given queries. In this paper we present gGlOSS, a generalized Glossary-Of-Servers Server, that keeps statistics on the available databases to estimate which databases are t ..."
Abstract
-
Cited by 179 (15 self)
- Add to MetaCart
are the potentially most useful for a given query. gGlOSS extends our previous work [GGMT94a], which focused on databases using the boolean model of document retrieval, to cover databases using the more sophisticated vector-space retrieval model. We evaluate our new techniques using real-user queries and 53 databases
Evaluating Natural Language Processing Systems
, 1993
"... This report presents a detailed analysis and review of NLP evaluation, in principle and in practice. Part 1 examines evaluation concepts and establishes a framework for NLP system evaluation. This makes use of experience in the related area of information retrieval and the analysis also refers to ev ..."
Abstract
-
Cited by 148 (0 self)
- Add to MetaCart
This report presents a detailed analysis and review of NLP evaluation, in principle and in practice. Part 1 examines evaluation concepts and establishes a framework for NLP system evaluation. This makes use of experience in the related area of information retrieval and the analysis also refers
Efficient query evaluation using a two-level retrieval process
- In Proc. of the 12th ACM Conf. on Information and Knowledge Management
, 2003
"... We present an efficient query evaluation method based on a two level approach: at the first level, our method iterates in parallel over query term postings and identifies candidate documents using an approximate evaluation taking into account only partial information on term occurrences and no query ..."
Abstract
-
Cited by 125 (12 self)
- Add to MetaCart
We present an efficient query evaluation method based on a two level approach: at the first level, our method iterates in parallel over query term postings and identifies candidate documents using an approximate evaluation taking into account only partial information on term occurrences
Cross-Language Information Retrieval in a Multilingual Legal Domain
- In Proceedings of the First European Conference on Research and Advanced Technology for Digital Libraries
, 1997
"... . We describe here the application of a cross-language information retrieval technique based on similarity thesauri in the domain of Swiss law. We present the theory of similarity thesauri, which are information structures deerived from corpora, and show how they can be used for cross-language retri ..."
Abstract
-
Cited by 28 (6 self)
- Add to MetaCart
. We describe here the application of a cross-language information retrieval technique based on similarity thesauri in the domain of Swiss law. We present the theory of similarity thesauri, which are information structures deerived from corpora, and show how they can be used for cross
Experiments in Multilingual Information Retrieval using the SPIDER system
- In Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval
, 1996
"... We introduce a new approach to multilingual information retrieval based on the use of thesaurus-based query expansion techniques applied over a collection of comparable multilingual documents. This approach has been built into the SPIDER information retrieval system and has been tested over a large ..."
Abstract
-
Cited by 102 (6 self)
- Add to MetaCart
We introduce a new approach to multilingual information retrieval based on the use of thesaurus-based query expansion techniques applied over a collection of comparable multilingual documents. This approach has been built into the SPIDER information retrieval system and has been tested over a large
Effective Retrieval with Distributed Collections
, 1998
"... This paper evaluates the retrieval effectiveness of distributed information retrieval systems in realistic environments. We find that when a large number of collections are available, the retrieval effectiveness is significantly worse than that of centralized systems, mainly because typical queries ..."
Abstract
-
Cited by 112 (12 self)
- Add to MetaCart
This paper evaluates the retrieval effectiveness of distributed information retrieval systems in realistic environments. We find that when a large number of collections are available, the retrieval effectiveness is significantly worse than that of centralized systems, mainly because typical queries
Exploiting query reformulations for web search result diversification
- In Proceedings of WWW
, 2010
"... When aWeb user’s underlying information need is not clearly specified from the initial query, an effective approach is to di-versify the results retrieved for this query. In this paper, we introduce a novel probabilistic framework for Web search re-sult diversification, which explicitly accounts for ..."
Abstract
-
Cited by 78 (22 self)
- Add to MetaCart
When aWeb user’s underlying information need is not clearly specified from the initial query, an effective approach is to di-versify the results retrieved for this query. In this paper, we introduce a novel probabilistic framework for Web search re-sult diversification, which explicitly accounts
Simple, Proven Approaches to Text Retrieval
, 1997
"... This technical note describes straightforward techniques for document indexing and retrieval that have been solidly established through extensive testing and are easy to apply. They are useful for many different types of text material, are viable for very large files, and have the advantage that the ..."
Abstract
-
Cited by 117 (3 self)
- Add to MetaCart
been rigorous comparative evaluations involving many different approaches to information retrieval. ...
Results 11 - 20
of
2,014
