{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,5]],"date-time":"2025-10-05T19:51:44Z","timestamp":1759693904218,"version":"3.41.0"},"reference-count":50,"publisher":"Association for Computing Machinery (ACM)","issue":"3","license":[{"start":{"date-parts":[[2018,2,2]],"date-time":"2018-02-02T00:00:00Z","timestamp":1517529600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"funder":[{"DOI":"10.13039\/100006199","name":"LARC","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100006199","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":["ACM Trans. Inf. Syst."],"published-print":{"date-parts":[[2018,7,31]]},"abstract":"<jats:p>Which venue is a tweet posted from? We call this a fine-grained geolocation problem. Given an observed tweet, the task is to infer its discrete posting venue, e.g., a specific restaurant. This recovers the venue context and differs from prior work, which geolocats tweets to location coordinates or cities\/neighborhoods.<\/jats:p>\n          <jats:p>\n            First, we conduct empirical analysis to uncover venue and user characteristics for improving geolocation. For venues, we observe\n            <jats:italic>spatial homophily<\/jats:italic>\n            , in which venues near each other have more similar tweet content (i.e., text representations) compared to venues further apart. For users, we observe that they are\n            <jats:italic>spatially focused<\/jats:italic>\n            and more likely to visit venues near their previous visits. We also find that a substantial proportion of users post one or more geocoded tweet(s), thus providing their location history data. We then propose geolocation models that exploit spatial homophily and spatial focus characteristics plus posting time information. Our models rank candidate venues of test tweets such that the actual posting venue is ranked high. To better tune model parameters, we introduce a learning-to-rank framework. Our best model significantly outperforms state-of-the-art baselines. Furthermore, we show that tweets without any location-indicative words can be geolocated meaningfully as well.\n          <\/jats:p>","DOI":"10.1145\/3156667","type":"journal-article","created":{"date-parts":[[2018,2,6]],"date-time":"2018-02-06T18:13:28Z","timestamp":1517940808000},"page":"1-34","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":15,"title":["Exploiting User and Venue Characteristics for Fine-Grained Tweet Geolocation"],"prefix":"10.1145","volume":"36","author":[{"given":"Wen-Haw","family":"Chong","sequence":"first","affiliation":[{"name":"Singapore Management University, Stamford Road, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ee-Peng","family":"Lim","sequence":"additional","affiliation":[{"name":"Singapore Management University, Stamford Road, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2018,2,2]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1145\/2488388.2488392"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/BigData.2015.7363808"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/ASONAM.2012.29"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1145\/1871437.1871535"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1145\/2020408.2020579"},{"key":"e_1_2_1_6_1","volume-title":"Bing Tian Dai, and Ee-Peng Lim","author":"Chong Wen-Haw","year":"2015","unstructured":"Wen-Haw Chong , Bing Tian Dai, and Ee-Peng Lim . 2015 . Prediction of venues in Foursquare using flipped topic models. In Advances in Information Retrieval (ECIR\u201915). Lecture Notes in Computer Science, Springer , Berlin. Wen-Haw Chong, Bing Tian Dai, and Ee-Peng Lim. 2015. Prediction of venues in Foursquare using flipped topic models. In Advances in Information Retrieval (ECIR\u201915). Lecture Notes in Computer Science, Springer, Berlin."},{"key":"e_1_2_1_7_1","volume-title":"11th International AAAI Conference on Web and Social Media (ICWSM\u201917)","author":"Chong Wen-Haw","year":"2017","unstructured":"Wen-Haw Chong and Ee-Peng Lim . 2017 . Exploiting contextual information for fine-grained tweet geolocation . In 11th International AAAI Conference on Web and Social Media (ICWSM\u201917) . Wen-Haw Chong and Ee-Peng Lim. 2017. Exploiting contextual information for fine-grained tweet geolocation. 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