{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T17:08:21Z","timestamp":1778605701421,"version":"3.51.4"},"reference-count":10,"publisher":"IEEE","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,6]]},"DOI":"10.1109\/gscit.2014.6970125","type":"proceedings-article","created":{"date-parts":[[2014,12,8]],"date-time":"2014-12-08T22:26:43Z","timestamp":1418077603000},"page":"1-4","source":"Crossref","is-referenced-by-count":2,"title":["Extracting product features from online reviews based on two-level HHMM"],"prefix":"10.1109","author":[{"given":"Xiaoli","family":"Wang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhang","family":"Lu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"263","reference":[{"key":"ref4","article-title":"Learning hidden Markov model structure for information extraction","author":"seymore","year":"1999","journal-title":"AAAI-99 Workshop on Machine Learning for Information Extraction"},{"key":"ref3","author":"leek","year":"1997","journal-title":"Information Extraction Using Hidden Markov Models"},{"key":"ref10","author":"toutanova","year":"2000","journal-title":"Stanford Log-linear Part-Of-Speech Tagger"},{"key":"ref6","first-page":"584","article-title":"Information extraction with HMM structures learned by stochastic optimization","author":"freitag","year":"2000","journal-title":"AAAI\/IAAI 2000"},{"key":"ref5","article-title":"Information extraction with HMMs and shrinkage","author":"freitag","year":"1999","journal-title":"Proceedings of the AAAI-99 Workshop on Machine Learning for Information Extraction"},{"key":"ref8","author":"mccallum","year":"2000","journal-title":"Maximum Entropy Markov Models for Information Extraction and Segmentation"},{"key":"ref7","article-title":"Representing sentence structure in hidden Markov models for information extraction","author":"ray","year":"2001","journal-title":"International Joint Conference on Artificial Intelligence"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.3115\/1118771.1118778"},{"key":"ref9","article-title":"Hierarchical hidden markov models for information extraction","author":"skounakis","year":"2003","journal-title":"IJCAI"},{"key":"ref1","author":"hu","year":"2004","journal-title":"Mining Opinion Features in Customer Reviews"}],"event":{"name":"2014 Global Summit on Computer & Information Technology (GSCIT)","location":"Sousse, Tunisia","start":{"date-parts":[[2014,6,14]]},"end":{"date-parts":[[2014,6,16]]}},"container-title":["2014 Global Summit on Computer & Information Technology (GSCIT)"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/6962872\/6970090\/06970125.pdf?arnumber=6970125","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,3,24]],"date-time":"2017-03-24T05:42:57Z","timestamp":1490334177000},"score":1,"resource":{"primary":{"URL":"http:\/\/ieeexplore.ieee.org\/document\/6970125\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,6]]},"references-count":10,"URL":"https:\/\/doi.org\/10.1109\/gscit.2014.6970125","relation":{},"subject":[],"published":{"date-parts":[[2014,6]]}}}