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Detecting conversation threads contained in email corpora can be beneficial for both humans to digest the content of discussions and automatic methods to extract useful information from the conversations. This research explores two new feature-enriched learning approaches, LExLinC and LExTreC, to reconstruct linear structure and tree structure of conversation threads in email data. In this work, some simplifying assumptions considered in previous methods for extracting conversation threads are relaxed, which makes the proposed methods more powerful in detecting real conversations. Additionally, the supervised nature of the proposed methods makes them adaptable to new environments by automatically adjusting the features and their weights. Experimental results show that the proposed methods are highly effective in detecting conversation threads and outperform the existing methods.<\/jats:p>","DOI":"10.1177\/0165551513494638","type":"journal-article","created":{"date-parts":[[2013,7,29]],"date-time":"2013-07-29T20:27:48Z","timestamp":1375129668000},"page":"846-863","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["A learning approach for email conversation thread reconstruction"],"prefix":"10.1177","volume":"39","author":[{"given":"Mostafa","family":"Dehghani","sequence":"first","affiliation":[{"name":"School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Azadeh","family":"Shakery","sequence":"additional","affiliation":[{"name":"School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Iran and School of Computer Science, Institute for Research in Fundamental Sciences (IPM), Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masoud","family":"Asadpour","sequence":"additional","affiliation":[{"name":"School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Iran and School of Computer Science, Institute for Research in Fundamental Sciences (IPM), Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arash","family":"Koushkestani","sequence":"additional","affiliation":[{"name":"School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2013,7,29]]},"reference":[{"key":"bibr1-0165551513494638","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-540-78646-7_48"},{"key":"bibr2-0165551513494638","doi-asserted-by":"publisher","DOI":"10.1007\/s10791-011-9166-8"},{"key":"bibr3-0165551513494638","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-20161-5_35"},{"key":"bibr4-0165551513494638","doi-asserted-by":"publisher","DOI":"10.1145\/1277741.1277956"},{"key":"bibr5-0165551513494638","first-page":"1300","volume-title":"Proceedings of the 24th Association for the Advancement of Artificial Intelligence (AAAI) conference","author":"Bhatia S","year":"2010"},{"issue":"3","key":"bibr6-0165551513494638","first-page":"354","volume":"15","author":"Magnani M","year":"2011","journal-title":"Information Retrieval"},{"key":"bibr7-0165551513494638","first-page":"388","volume-title":"Proceedings of the 2010 conference on empirical methods in natural language processing (EMNLP\u201910), Association for Computational Linguistics","author":"Joty S","year":"2010"},{"key":"bibr8-0165551513494638","first-page":"353","volume-title":"Proceedings of Association for Computational Linguistics: Human language technologies (ACL: HTL)","author":"Carenini G","year":"2008"},{"key":"bibr9-0165551513494638","first-page":"542","volume-title":"Proceedings of the 8th international conference on computational linguistics and intelligent text processing (CICLing\u201907)","author":"Mckeown K","year":"2009"},{"key":"bibr10-0165551513494638","doi-asserted-by":"publisher","DOI":"10.1002\/asi.21702"},{"key":"bibr11-0165551513494638","volume":"418","author":"Bekkerman R","year":"2004","journal-title":"Center for Intelligent Information Retrieval, Technical Report IR-"},{"key":"bibr12-0165551513494638","first-page":"710","author":"Ding S","year":"2008","journal-title":"Proceedings of Association for Computational Linguistics (ACL)"},{"key":"bibr13-0165551513494638","doi-asserted-by":"publisher","DOI":"10.1145\/1571941.1571973"},{"key":"bibr14-0165551513494638","doi-asserted-by":"publisher","DOI":"10.1145\/1321440.1321575"},{"key":"bibr15-0165551513494638","doi-asserted-by":"crossref","unstructured":"Zhang J, Ackerman M, Adamic L. 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