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NTCIR-3 Chinese, Cross Language Retrieval Experiments Using PIRCS
2002
NTCIR Conference on Evaluation of Information Access Technologies
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We participated in the monolingual Chinese, English-Chinese cross language and multilingual retrieval tasks using our PIRCS retrieval system. ...
Two separate retrieval lists were obtained and later combined as final result for some submissions. For cross-lingual and multilingual retrieval, only short-word indexing was used. ...
Acknowledgment This work was partially supported by the Space and Naval Warfare Systems Center San Diego, under grant No. N66001-1-8912. The Third NTCIR Workshop, Sep.2001 -Oct. 2002 ...
dblp:conf/ntcir/Kwok02
fatcat:dtoaohfoffdt5fn3ebnbaovtki
Improving English and Chinese ad-hoc retrieval
1996
Proceedings of a workshop on held at Baltimore, Maryland October 13-15, 1998 -
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We investigated both English and Chinese ad-hoc information retrieval (IR). ...
Part of our objectives is to study the use of term, phrasal and topical concept level evidence, either individually or in combination, to improve retrieval accuracy. ...
Section 4 presents our work for English ad-hoc retrieval employing term, phrasal and topical concept levels of evidence. Section 5 describes various Chinese retrieval experiments. ...
doi:10.3115/1119089.1119113
dblp:conf/tipster/Kwok98
fatcat:if2hd7jfajejnnn4vyod7z76ea
NTCIR-2 Chinese, Cross Language Retrieval Experiments Using PIRCS
2001
NTCIR Conference on Evaluation of Information Access Technologies
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We participated in the monolingual Chinese and English-Chinese cross language retrieval track using our PIRCS retrieval system. ...
Shortword with character representation was used for both documents and queries. ...
Acknowledgments This work was partially supported by the Space and Naval Warfare Systems Center San Diego, under grant No. N66001-1-8912. Norbert Dinstl helped formatting the queries and collections. ...
dblp:conf/ntcir/Kwok01
fatcat:pvnp5qi6ffcfjn4pm5t4trferm
Different Retrieval Models and Hybrid Term Indexing
2002
NTCIR Conference on Evaluation of Information Access Technologies
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Retrieval effectiveness depends on both the retrieval model and how terms are extracted and indexed. For Chinese, Japanese and Korea text, there are no spaces to delimit words. ...
In this evaluation, we found that using the 2-Poisson model with hybrid term indexing can be effective in retrieval. ...
Kwok for commenting our implementation of Pircs, which differs from his system and to Prof. K.F. Wong for making available the TREC data for experimentation. ...
dblp:conf/ntcir/Luk02
fatcat:vloreemywjahtdl55j2x3asqle
Cross-Language Chinese Text Retrieval in NTCIR Workshop
2001
SIGIR Forum
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CHTR tasks fall into two categories: Chinese-Chinese IR (CHIR) and English-Chinese IR (ECIR). ...
This article reports the results of Chinese Text Retrieval (CHTR) tasks in NTCIR Workshop 2 and the future plan of NTCIR workshop. ...
We would like to thank the participants for their contributions and the relevance judges for their hard working. Special thanks are due to Dr. Noriko Kando for her helps. ...
doi:10.1145/511144.511149
fatcat:sg46hp56trfm7likgmsr2thpgi
Testing an Entity Ranking Function for English Factoid QA
2007
Text Retrieval Conference
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This procedure has been used in our English-Chinese CLQA system [4] , and further updated based on questions from TREC 2006. ...
Our TREC-2006 experiments perform similarly to TREC-2007 and blog data does not seem to have much influence on our simple approach. ...
dblp:conf/trec/KwokD07
fatcat:hsbp6jkh2fedvmdlnv6xaefd2m
The TREC-2001 Cross-Language Information Retrieval Track: Searching Arabic Using English, French or Arabic Queries
2001
Text Retrieval Conference
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Ten groups participated in the TREC-2001 cross-language information retrieval track, which focussed on retrieving Arabic language documents based on 25 queries that were originally prepared in English. ...
This was the first year in which a large Arabic test collection was available, so a variety of approaches were tried and a rich set of experiments performed using resources such as machine translation, ...
and insights along the way, and to Kareem Darwish for his comments on an earlier version of this paper. ...
dblp:conf/trec/GeyO01
fatcat:cwkg2mal3zgrpewhdtyo333tea
The Chinese Text Retrieval Tasks of NTCIR Workshop 2
2001
NTCIR Conference on Evaluation of Information Access Technologies
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This paper is a report of Chinese Text Retrieval (CHTR) tasks in NTCIR Workshop 2. CHTR tasks fall into two categories: Chinese-Chinese IR (CHIR) and English-Chinese IR (ECIR). ...
The definitions, schedules, test collection (CIRB010), search results, evaluation, and initial analyses of search results of CHIR and ECIR are discussed in this paper. ...
We would like to thank the participants for their contributions and the relevance judges for their hard working. Special thanks are due to Dr. Noriko Kando for her substantial help. ...
dblp:conf/ntcir/ChenC01
fatcat:zfo5vftrpfd7xo7fxqarzhabvy
Comparing representations in Chinese information retrieval
1997
Proceedings of the 20th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '97
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The retrieval collection is the approximately 170 MB TREC-5 Chinese corpus of news articles, and 28 queries that are long and rich in wordings. ...
Three representation methods are empirically investigated for Chinese information retrieval: 1-gram (single character), bigram (two contiguous overlapping characters), and short-word indexing based on ...
Conclusion Within the TREC-5 Chinese retrieval environment using our PIRCS engine and where the queries are long and rich, bigram indexing is effective and performs as well as short-word indexing. ...
doi:10.1145/258525.258531
dblp:conf/sigir/Kwok97
fatcat:g44yl7qpz5hphjpwalrnthquxm
Comparing representations in Chinese information retrieval
1997
SIGIR Forum
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The retrieval collection is the approximately 170 MB TREC-5 Chinese corpus of news articles, and 28 queries that are long and rich in wordings. ...
Three representation methods are empirically investigated for Chinese information retrieval: 1-gram (single character), bigram (two contiguous overlapping characters), and short-word indexing based on ...
Conclusion Within the TREC-5 Chinese retrieval environment using our PIRCS engine and where the queries are long and rich, bigram indexing is effective and performs as well as short-word indexing. ...
doi:10.1145/278459.258531
fatcat:nn4ykcejbnbnxcl42mqubwqzfu
Probability-Based Chinese Text Processing and Retrieval
2000
Computational intelligence
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We discuss the use of probability-based natural language processing for Chinese text retrieval. We focus on comparing different text extraction methods and probabilistic weighting methods. ...
Several document processing methods and probabilistic weighting functions are presented. A number of experiments have been conducted on large standard text collections. ...
We also would like to thank University of Waterloo and University of Regina for providing computer facilities for conducting the experiments reported in the paper. ...
doi:10.1111/0824-7935.00126
fatcat:mja2yidr3velzipwmfkauy57oy
Overview of CLIR Task at the Fifth NTCIR Workshop
2005
NTCIR Conference on Evaluation of Information Access Technologies
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The purpose of this paper is to overview research efforts at the NTCIR-5 CLIR task, which is a project of large-scale retrieval experiments on cross-lingual information retrieval (CLIR) of Chinese, Japanese ...
, Korean, and English. ...
NTCIR-5 Chinese, English, Korean cross language information retrieval experiments using PIRCS In Proceedings of the Fifth NTCIR Workshop. [12] Yang Lingpeng and Ji Donghong. I2R at NTCIR5. ...
dblp:conf/ntcir/KishidaCLKKCM05
fatcat:h6wk76opi5bsxamfqpvsohvvyu
NTCIR-6 Monolingual Chinese and English-Chinese Cross-Lingual Question Answering Experiments using PIRCS
2007
NTCIR Conference on Evaluation of Information Access Technologies
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In monolingual Chinese QA, questions are classified based on cue-word and meta-keyword usage patterns. Retrieval is done using sentence units, and indexing is based on bigrams and characters. ...
English-Chinese CLQA starts with English question classification also based on an approach similar to Chinese. Three paths of translation render the question into Chinese strings. ...
Conclusion We performed monolingual Chinese factoid QA experiments using only entity extraction software with our PIRCS retrieval and ad hoc answer ranking formulae and parameters. ...
dblp:conf/ntcir/KwokDD07
fatcat:teycgoaoqnbnbjpqwlsdzx4huy
Overview of CLIR Task at the Third NTCIR Workshop
2002
NTCIR Conference on Evaluation of Information Access Technologies
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That is to say, we will have retrieval task of Chinese queries against Chinese and Japanese documents, but we could not provide retrieval task of Chinese queries against Chinese and Korean documents. ...
Basically, 4 languages will involve in the CLIR task: Chinese, English, Japanese, and Korean. The test collection used in CLIR Task is composed of news articles in the aforementioned 4 languages. ...
We are grateful to CLEF and TREC for their helps in creating topics. We would like to thank the participants for their contributions and the assessors for their hard working in relevance judgment. ...
dblp:conf/ntcir/ChenCKKLMKEK02
fatcat:hmnp436xczgmrgoqkabgwlp2mm
The Text REtrieval Conferences (TRECs)
1996
Proceedings of a workshop on held at Vienna, Virginia May 6-8, 1996 -
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Thanks also go to the TREC program committee and the staff at NIST. The TREC tracks could not happen without the efforts of the track coordinators; our special thanks to them. ...
Acknowledgments The authors gratefully acknowledge the continued support of the TREC conferences by the Intelligent Systems Office of the Defense Advanced Research Projects Agency. ...
Table 3 .1 shows the statistics for all the English document collections used in TREC. TREC-5 used disks 2 and 4 for the ad hoc testing, while TRECs 6 and 7 used disks 4 and 5 for ad hoc testing. ...
doi:10.3115/1119018.1119026
dblp:conf/tipster/Harman96
fatcat:wjklhj3nwnenfkfxben2756yla
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