{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,19]],"date-time":"2025-06-19T04:33:09Z","timestamp":1750307589754,"version":"3.41.0"},"publisher-location":"New York, NY, USA","reference-count":36,"publisher":"ACM","license":[{"start":{"date-parts":[[2009,11,2]],"date-time":"2009-11-02T00:00:00Z","timestamp":1257120000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2009,11,2]]},"DOI":"10.1145\/1645953.1646125","type":"proceedings-article","created":{"date-parts":[[2009,11,10]],"date-time":"2009-11-10T18:36:45Z","timestamp":1257878205000},"page":"1357-1366","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["ExSearch"],"prefix":"10.1145","author":[{"given":"Lei","family":"Ji","sequence":"first","affiliation":[{"name":"Microsoft Research Asia, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Yan","sequence":"additional","affiliation":[{"name":"Microsoft Research Asia, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ning","family":"Liu","sequence":"additional","affiliation":[{"name":"Microsoft Research Asia, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wen","family":"Zhang","sequence":"additional","affiliation":[{"name":"University of Science & Technology of China, Hefei, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weiguo","family":"Fan","sequence":"additional","affiliation":[{"name":"Virginia Polytechnic Institute and State University, Blacksburg, VA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zheng","family":"Chen","sequence":"additional","affiliation":[{"name":"Microsoft Research Asia, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2009,11,2]]},"reference":[{"key":"e_1_3_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1011994105352"},{"key":"e_1_3_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1145\/345124.345169"},{"key":"e_1_3_2_1_3_1","volume-title":"Proceedings of the International World Wide Web Conference, Chicago IL USA","author":"Pinkerton B.","year":"1994","unstructured":"B. Pinkerton , Finding what people want: Experiences with the WebCrawler , In Proceedings of the International World Wide Web Conference, Chicago IL USA , 1994 . B. Pinkerton, Finding what people want: Experiences with the WebCrawler, In Proceedings of the International World Wide Web Conference, Chicago IL USA, 1994."},{"key":"e_1_3_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.is.2005.02.007"},{"key":"e_1_3_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1145\/356770.356776"},{"key":"e_1_3_2_1_6_1","first-page":"584","volume-title":"Proceedings of National Conference on Artificial Intelligence","author":"Freitag D.","year":"2000","unstructured":"D. Freitag and A. McCallum , Information extraction with HMM structures learned by stochastic optimization , In Proceedings of National Conference on Artificial Intelligence , Austin, TX, USA , pp. 584 -- 589 , 2000 . D. Freitag and A. McCallum, Information extraction with HMM structures learned by stochastic optimization, In Proceedings of National Conference on Artificial Intelligence, Austin, TX, USA, pp. 584--589, 2000."},{"key":"e_1_3_2_1_7_1","first-page":"28","volume-title":"Information Retrieval, Data Structures&Algorithms","author":"Harman D.","year":"1992","unstructured":"D. Harman , and E. Fox , Inverted Files . In W. B. Frakes and R. A. Baesa-Yates, editors, Information Retrieval, Data Structures&Algorithms , pp. 28 -- 43 , Prentice Hall , Englewood Cliffs, NJ , 1992 . D. Harman, and E. Fox, Inverted Files. In W. B. Frakes and R. A. Baesa-Yates, editors, Information Retrieval, Data Structures&Algorithms, pp. 28--43, Prentice Hall, Englewood Cliffs, NJ, 1992."},{"key":"e_1_3_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.3115\/1073083.1073092"},{"key":"e_1_3_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1145\/1031114.1031117"},{"key":"e_1_3_2_1_10_1","volume-title":"An Introduction to Modern Information Retrieval","author":"Salton G.","year":"1993","unstructured":"G. Salton and M. J. McGill , An Introduction to Modern Information Retrieval , McGraw-Hill , New York , 1993 . G. Salton and M. J. McGill, An Introduction to Modern Information Retrieval, McGraw-Hill, New York, 1993."},{"key":"e_1_3_2_1_11_1","first-page":"43","volume-title":"Proceedings of the Conference on Uncertainty in Artifical Intelligence","author":"Breese J.","year":"1998","unstructured":"J. Breese , D. Heckerman , and C. Kadie , Empirical Analysis of Predictive Algorithms for Collaborative Filtering , In Proceedings of the Conference on Uncertainty in Artifical Intelligence , pp. 43 -- 52 , 1998 . J. Breese, D. Heckerman, and C. Kadie, Empirical Analysis of Predictive Algorithms for Collaborative Filtering, In Proceedings of the Conference on Uncertainty in Artifical Intelligence, pp. 43--52, 1998."},{"key":"e_1_3_2_1_12_1","volume-title":"Data Mining: Concepts and Techniques","author":"Han J.","year":"2001","unstructured":"J. Han , and M. Kamber , Data Mining: Concepts and Techniques , Morgan Kaufmann Publishers , San Francisco, CA , 2001 . J. Han, and M. Kamber, Data Mining: Concepts and Techniques, Morgan Kaufmann Publishers, San Francisco, CA, 2001."},{"key":"e_1_3_2_1_13_1","doi-asserted-by":"publisher","DOI":"10.1145\/1390334.1390367"},{"key":"e_1_3_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1145\/312624.312656"},{"key":"e_1_3_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1145\/860435.860486"},{"key":"e_1_3_2_1_16_1","first-page":"115","volume-title":"International Journal on Digital Libraries, 3(2)","author":"Frantzi K.","year":"2000","unstructured":"K. Frantzi , S. Ananiadou and H. Mima , Automatic recognition of multi-word terms: the C-value\/NC-value method , International Journal on Digital Libraries, 3(2) , Springer Berlin , pp. 115 -- 130 , 2000 . K. Frantzi, S. Ananiadou and H. Mima, Automatic recognition of multi-word terms: the C-value\/NC-value method, International Journal on Digital Libraries, 3(2), Springer Berlin, pp.115--130, 2000."},{"key":"e_1_3_2_1_17_1","first-page":"527","volume-title":"Proceedings of the Conference on VLDB","author":"Diligenti M.","year":"2000","unstructured":"M. Diligenti , F. Coetzee , S. Lawrence , etc. , Focused crawling using context graphs , In Proceedings of the Conference on VLDB , Cairo, Egypt , pp 527 -- 534 , 2000 . M. Diligenti, F. Coetzee, S. Lawrence, etc., Focused crawling using context graphs, In Proceedings of the Conference on VLDB, Cairo, Egypt, pp 527--534, 2000."},{"key":"e_1_3_2_1_18_1","first-page":"328","volume-title":"Proceedings of the National Conference on Artificial Intelligence","author":"Califf M. E.","year":"1999","unstructured":"M. E. Califf and R. J. Mooney , Relational learning of pattern-match rules for Information Extraction , In Proceedings of the National Conference on Artificial Intelligence , Orlando, Florida, USA , pp. 328 -- 334 , 1999 . M. E. Califf and R. J. Mooney, Relational learning of pattern-match rules for Information Extraction, In Proceedings of the National Conference on Artificial Intelligence, Orlando, Florida, USA, pp. 328--334, 1999."},{"key":"e_1_3_2_1_19_1","first-page":"538","volume-title":"Proceedings of the Conference on VLDB","author":"Cafarella M. J.","year":"2008","unstructured":"M. J. Cafarella , A. Halevy , Z. Wang , etc., WebTables : Exploring the power of tables on the web , In Proceedings of the Conference on VLDB , Auckland, New Zealand , pp. 538 -- 549 , 2008 M. J. Cafarella, A. Halevy, Z. Wang, etc., WebTables: Exploring the power of tables on the web, In Proceedings of the Conference on VLDB, Auckland, New Zealand, pp. 538--549, 2008"},{"key":"e_1_3_2_1_20_1","doi-asserted-by":"publisher","DOI":"10.5555\/648263.753384"},{"key":"e_1_3_2_1_21_1","volume-title":"Proceedings of the 14th Text Retrieval Conference","author":"Craswell N.","year":"2005","unstructured":"N. Craswell , H. Zaragoza , and S. Robertson , Microsoft Cambridge at TREC-14: Enterprise Track , In Proceedings of the 14th Text Retrieval Conference , 2005 . N. Craswell, H. Zaragoza, and S. Robertson, Microsoft Cambridge at TREC-14: Enterprise Track, In Proceedings of the 14th Text Retrieval Conference, 2005."},{"key":"e_1_3_2_1_22_1","doi-asserted-by":"publisher","DOI":"10.5555\/1597148.1597213"},{"key":"e_1_3_2_1_23_1","doi-asserted-by":"publisher","DOI":"10.1145\/988672.988687"},{"key":"e_1_3_2_1_24_1","first-page":"454","volume-title":"A Small Approximately Min-Wise Independent Family of Hash Functions. In Proceedings of the Symposium on Discrete Algorithms","author":"Indyk P.","year":"1999","unstructured":"P. Indyk , A Small Approximately Min-Wise Independent Family of Hash Functions. In Proceedings of the Symposium on Discrete Algorithms , Baltimore, Maryland, USA , pp. 454 -- 456 , 1999 . P. Indyk, A Small Approximately Min-Wise Independent Family of Hash Functions. In Proceedings of the Symposium on Discrete Algorithms, Baltimore, Maryland, USA, pp. 454--456, 1999."},{"key":"e_1_3_2_1_25_1","doi-asserted-by":"publisher","DOI":"10.1145\/192844.192905"},{"key":"e_1_3_2_1_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1389-1286(99)00052-3"},{"key":"e_1_3_2_1_27_1","volume-title":"Advances in Neural Information Processing Systems","author":"Sarawagi S.","year":"2005","unstructured":"S. Sarawagi and W. W. Cohen , Semi-markov conditional random fields for information extraction , In Advances in Neural Information Processing Systems , Vancouver, Canada , 2005 . S. Sarawagi and W. W. Cohen, Semi-markov conditional random fields for information extraction, In Advances in Neural Information Processing Systems, Vancouver, Canada, 2005."},{"key":"e_1_3_2_1_28_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1007562322031"},{"key":"e_1_3_2_1_29_1","doi-asserted-by":"publisher","DOI":"10.1007\/11559887_19"},{"key":"e_1_3_2_1_30_1","unstructured":"http:\/\/www.barter.net\/  http:\/\/www.barter.net\/"},{"key":"e_1_3_2_1_31_1","unstructured":"http:\/\/www.bartercard.com\/  http:\/\/www.bartercard.com\/"},{"key":"e_1_3_2_1_32_1","unstructured":"http:\/\/www.barterswitch.com\/  http:\/\/www.barterswitch.com\/"},{"key":"e_1_3_2_1_33_1","unstructured":"http:\/\/www.craigslist.org\/about\/sites  http:\/\/www.craigslist.org\/about\/sites"},{"key":"e_1_3_2_1_34_1","unstructured":"http:\/\/www.ims.uni-stuttgart.de\/projekte\/corplex\/TreeTagger\/  http:\/\/www.ims.uni-stuttgart.de\/projekte\/corplex\/TreeTagger\/"},{"key":"e_1_3_2_1_35_1","unstructured":"http:\/\/www.reexchange.com\/  http:\/\/www.reexchange.com\/"},{"key":"e_1_3_2_1_36_1","unstructured":"http:\/\/www.tradeaway.com\/  http:\/\/www.tradeaway.com\/"}],"event":{"name":"CIKM '09: Conference on Information and Knowledge Management","sponsor":["SIGWEB ACM Special Interest Group on Hypertext, Hypermedia, and Web","SIGIR ACM Special Interest Group on Information Retrieval"],"location":"Hong Kong China","acronym":"CIKM '09"},"container-title":["Proceedings of the 18th ACM conference on Information and knowledge management"],"original-title":[],"link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/1645953.1646125","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/1645953.1646125","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T12:41:28Z","timestamp":1750250488000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/1645953.1646125"}},"subtitle":["a novel vertical search engine for online barter business"],"short-title":[],"issued":{"date-parts":[[2009,11,2]]},"references-count":36,"alternative-id":["10.1145\/1645953.1646125","10.1145\/1645953"],"URL":"https:\/\/doi.org\/10.1145\/1645953.1646125","relation":{},"subject":[],"published":{"date-parts":[[2009,11,2]]},"assertion":[{"value":"2009-11-02","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}