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Retrieval Efficiency of Normalized Query Expansion
[chapter]
2005
Lecture Notes in Computer Science
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In this paper we experimentally study the impact of normalized query expansion on Web Information Retrieval. ...
Experimental results demonstrate that for certain query types our module has a potential in giving improved search results in terms of relevance, compared to the results retrieved for the same queries ...
The query expansion module we introduce explores the semantic information encoded in WordNet and determines which terms are the most suitable to be used for enriching a given query. ...
doi:10.1007/978-3-540-30586-6_64
fatcat:oq45cm2mo5brlpjrlbist2uxqa
Multi Word Term Queries for Focused Information Retrieval
[chapter]
2010
Lecture Notes in Computer Science
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In this paper, we address both standard and focused retrieval tasks based on comprehensible language models and interactive query expansion (IQE). ...
We also combined the initial set of MWTs obtained in an IQE process with automatic query expansion (AQE) using language models and smoothing mechanism. ...
show that multiword term query representation and interactive query expansion are a promising combination for both standard document and focused retrieval. ...
doi:10.1007/978-3-642-12116-6_50
fatcat:adqlskqsi5ap7gpywojbhgy7ti
Combining Language Models with NLP and Interactive Query Expansion
[chapter]
2010
Lecture Notes in Computer Science
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Query topics are expanded using an initial set of Multiword Terms (MWTs) selected from top n ranked documents. ...
Following our previous participation in INEX 2008 Ad-hoc track, we continue to address both standard and focused retrieval tasks based on comprehensible language models and interactive query expansion ...
In the 2008 edition, we explored the effectiveness of NLP, in particular that of multiword terms (MWTs) combined with query expansion mechanisms -Automatic Query Expansion (AQE) and Interactive Query Expansion ...
doi:10.1007/978-3-642-14556-8_14
fatcat:wtnvcoqi6zc7vlc4av6w57roj4
Noun phrases in interactive query expansion and document ranking
2006
Information retrieval (Boston)
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A combined syntactico-statistical method was used for the selection of phrases for query expansion. Several statistical measures of phrase selection were evaluated. ...
The paper presents several techniques for selecting noun phrases for interactive query expansion following pseudo-relevance feedback and a new phrase-based document ranking method. ...
Use of phrases in interactive query expansion Phrases can play a useful role in interactive query expansion by helping users to formulate their information need, in particular when the information need ...
doi:10.1007/s10791-006-6390-8
fatcat:pllm63nqhjfipmlu2yrcdi5bpe
A layered approach to NLP-based information retrieval
1998
Proceedings of the 36th annual meeting on Association for Computational Linguistics -
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A layered approach to information retrieval permits the inclusion of multiple search engines as well as multiple databases, with a natural language layer to convert English queries for use by the various ...
The NLP layer incorporates morphological analysis, noun phrase syntax, and semantic expansion based on Word-Net. ...
A part-of-speech tagger then makes use of linguistic and statistical information to tag the parts of speech of incoming query portions. ...
doi:10.3115/980845.980913
dblp:conf/acl/Flank98
fatcat:fdxbvyftkzbctcd6ke3qigpzle
Essie: A Concept-based Search Engine for Structured Biomedical Text
2007
JAMIA Journal of the American Medical Informatics Association
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Essie shows that a judicious combination of exploiting document structure, phrase searching, and concept based query expansion is a useful approach for information retrieval in the biomedical domain. ...
Essie is a phrase-based search engine with term and concept query expansion and probabilistic relevancy ranking. ...
For levels of expansion from no expan-sion to concept expansion, the query is treated as if it consists of a single multiword term, such as "non-hodgkin's lymphoma." ...
doi:10.1197/jamia.m2233
pmid:17329729
pmcid:PMC2244877
fatcat:l3dg4ofxtnakbdhijktzci4p5i
The Role of Multi-word Units in Interactive Information Retrieval
[chapter]
2005
Lecture Notes in Computer Science
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The paper presents several techniques for selecting noun phrases for interactive query expansion following pseudo-relevance feedback and a new phrase search method. ...
First, noun phrases were selected using a part-ofspeech tagger and a noun-phrase chunker, and secondly, different statistical measures were applied to select phrases for query expansion. ...
Use of Phrases in Interactive Query Expansion Phrases can play a useful role in interactive query expansion by helping the users to formulate their information need, in particular when the information ...
doi:10.1007/978-3-540-31865-1_29
fatcat:cbuihcp6hbe53awu3w4xrvzxd4
Machine learning in a multimedia document retrieval framework
2002
IBM Systems Journal
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One ap- proach’ relies on query expansion, a second ap- proach* employs a variety of string distance meth- ods, and a third approach’ uses global information about probable phoneme confusions in the form ...
For multiword queries, the score for a doc- ument was determined by multiplying the single term scores for the document. This process corresponds to an “AND” operation over all query words. ...
doi:10.1147/sj.413.0494
fatcat:egp4a3gh4bdsxpw7pip7ulwqua
Experiments on Chinese-English Cross-language Retrieval at NTCIR-4
2004
NTCIR Conference on Evaluation of Information Access Technologies
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Aiming at a practical retrieval system, our applied a dictionarybased approach incorporated with phrasal translation, co-occurrence disambiguation and query expansion techniques. ...
The AI Lab group participated in the crosslanguage retrieval task at NTCIR-4. ...
Chen, "Highperformance Digital Library Systems: From Information Retrieval to Knowledge Management," IIS-9817473, April 1999-March 2002. ...
dblp:conf/ntcir/ZhouQCC04
fatcat:3ks26akuffatblnul7scisbub4
TREC-8 Automatic Ad-Hoc Experiments at Fondazione Ugo Bordoni
1999
Text Retrieval Conference
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We present further evidence suggesting the feasibilty of using information theoretic query expansion for improving the retrieval effectiveness of automatic document ranking . ...
We also investigate the use of term variance to refine the weighting schemes employed by our system to weight documents and queries. ...
Acknowledgments This work has been carried out within the framework of an agreement between the Italian PT Administration and the Fondazione Ugo Bordoni. ...
dblp:conf/trec/CarpinetoR99
fatcat:kkt36pojcje45kt23nzmuegi7u
Cross-language multimedia information retrieval
2000
Proceedings of the sixth conference on Applied natural language processing -
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Image retrieval is one of those applications, with results ranging from 68% of human translator performance for German, to 100% for French. ...
Simple measures can achieve high-accuracy cross-language retrieval in carefully chosen applications. ...
In conclusion, it appears that simple on-line translation of queries can support effective cross-language information retrieval, for certain applications. ...
doi:10.3115/974147.974150
dblp:conf/anlp/Flank00
fatcat:ewp3t7yr5naoxfgvf3k6d6gqoy
Query Refinement by Multi Word Term expansions and semantic synonymy
[article]
2008
arXiv
pre-print
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In this paper we explore its ability in integrating the most promising aspects of the studies on query refinement: choice of meaningful text units to cluster (domain terms), choice of tight semantic relations ...
with which to cluster terms, structuring of terms in a network enabling abetter perception of domain concepts. ...
Query refinement (QR) aims to improve retrieval performance by adding similar terms to the original user's query. ...
arXiv:0811.0603v1
fatcat:7h6k7si7dfdh3o2l5slmnktnrq
Experiments in multilingual information retrieval using the SPIDER system
1996
Proceedings of the 19th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '96
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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 SPI-DER information retrieval system and has been tested over a large collection of Italian documents. ...
Agentur (SDA) for making large quantities of their news available to us. ...
doi:10.1145/243199.243213
dblp:conf/sigir/SheridanB96
fatcat:n7jr43ggpnaoleljsmmnajaure
Justsystem-Clairvoyance CLIR Experiments at NTCIR-4 Workshop
2004
NTCIR Conference on Evaluation of Information Access Technologies
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query terms and expansion terms. ...
For Chinese-English
weighting and the Rocchio method for query retrieval, we used a part-of-speech tagger to get the
expansion. ...
dblp:conf/ntcir/QuGHEINUNAFM04
fatcat:epshc6ro3jacbiqkl4e4sfnuey
Exploiting noisy visual concept detection to improve spoken content based video retrieval
2010
Proceedings of the international conference on Multimedia - MM '10
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We deploy these vectors to improve spokencontent-based video retrieval using Query Expansion Selection (QES). ...
The approach is data driven, does not require prior training and relies solely on the analysis of the collection being queried and the results lists produced for the given query text. ...
RELATED WORK Query Expansion is widely used in information retrieval to enrich the original query (i.e., add query terms) so as to provide a better match with documents in the target collection. ...
doi:10.1145/1873951.1874063
dblp:conf/mm/RudinacLH10
fatcat:6oubdtvuaja6ne7r2thpgsgf2m
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