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TREC-8 Ad-Hoc, Query and Filtering Track Experiments using PIRCS

K. L. Kwok, Laszlo Grunfeld, M. Chan
1999 Text Retrieval Conference  
In TREC-8, we participated in automatic ad-hoc retrieval as well as the query and filtering tracks.  ...  For filtering track, experiments for adaptive, batch filtering, and routing were performed.  ...  Batch Filtering and Routing Retrieval 6.1 Pircs and genetic algorithms The TREC8 filtering and routing tasks were used as a testbed for our research in applying genetic algorithms learning [Gold89,Holl75  ... 
dblp:conf/trec/KwokGC99 fatcat:zjy6ffuj2vd4jatjbixmwaymja

The Text REtrieval Conferences (TRECs)

Donna Harman
1996 Proceedings of a workshop on held at Vienna, Virginia May 6-8, 1996 -  
the data needed, and completing and reviewing the collection of information.  ...  Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining  ...  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.  ... 
doi:10.3115/1119018.1119026 dblp:conf/tipster/Harman96 fatcat:wjklhj3nwnenfkfxben2756yla

The Text REtrieval Conferences (TRECs)

Donna Harman
1996 Proceedings of a workshop on held at Vienna, Virginia May 6-8, 1996 -  
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:10.3115/1119018.1119070 dblp:conf/tipster/Harman96a fatcat:bxx2gy23cbeenn5ryxedzg3ixe

The text retrieval conferences (TRECS)

Ellen M. Voorhees, Donna Harman
1996 Proceedings of a workshop on held at Baltimore, Maryland October 13-15, 1998 -  
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:10.3115/1119089.1119127 dblp:conf/tipster/VoorheesH98 fatcat:yo3fnbp2tffqzfjhndiwd4zsre

Improving two-stage ad-hoc retrieval for short queries

K. L. Kwok, M. Chan
1998 Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '98  
Short queries in an ad-hoc retrieval environment are difftcult but unavoidable.  ...  Experiments were performed using the TREC 5 and 6 environment. It is found that together these methods perform well for the difftcult TRECS topics, and also works for the TREC-6 very short topics.  ...  Dinstl who contributed in extending the PIRCS system for this project.  ... 
doi:10.1145/290941.291003 dblp:conf/sigir/KwokC98 fatcat:hpkqnt4adfdunmpoxsjreifyoy

Overview of the first TREC conference

Donna Harman
1993 Proceedings of the 16th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '93  
The first Text REtrieval Conference (TREC-1) was held in early November 1992 and was attended by about 100 people working in the 25 participating groups.  ...  There was a large variety of retieval techniques reported oz including methods using automatic thesattrii, sophisticated term weighting, natural language techniques, relevance feedback and advanced pattern  ...  Two types of retrieval are being examined --retrieval using an "ad-hoc" query such as a researcher might use in a library environment, and retrieval using a "routing" query such as a profile to filter  ... 
doi:10.1145/160688.160692 dblp:conf/sigir/Harman93 fatcat:urwm3q3wgra6nnvo22nkrpaq3i

Comparing representations in Chinese information retrieval

K. L. Kwok
1997 Proceedings of the 20th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '97  
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

K. L. Kwok
1997 SIGIR Forum  
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

NTCIR-6 Monolingual Chinese and English-Chinese Cross-Lingual Question Answering Experiments using PIRCS

Kui-Lam Kwok, Peter Deng, Norbert Dinstl
2007 NTCIR Conference on Evaluation of Information Access Technologies  
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.  ...  Entities extracted from retrieved sentences form a pool of answer candidates which are ranked using five evidence factors.  ...  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