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Identification of fine-grained location mentions in crisis tweets is central in transforming situational awareness information extracted from social media into actionable information. Most prior works have focused on identifying generic…

Computation and Language · Computer Science 2021-11-12 Sarthak Khanal , Maria Traskowsky , Doina Caragea

Nearly all previous work on geo-locating latent states and activities from social media confounds general discussions about activities, self-reports of users participating in those activities at times in the past or future, and self-reports…

Artificial Intelligence · Computer Science 2016-03-11 Nabil Hossain , Tianran Hu , Roghayeh Feizi , Ann Marie White , Jiebo Luo , Henry Kautz

Twitter is a useful resource to analyze peoples' opinions on various topics. Often these topics are correlated or associated with locations from where these Tweet posts are made. For example, restaurant owners may need to know where their…

Machine Learning · Computer Science 2021-06-28 Florina Dutt , Subhajit Das

Real-time tweets can provide useful information on evolving events and situations. Geotagged tweets are especially useful, as they indicate the location of origin and provide geographic context. However, only a small portion of tweets are…

Social and Information Networks · Computer Science 2019-10-08 Luke S. Snyder , Morteza Karimzadeh , Ray Chen , David S. Ebert

Users' locations are important for many applications such as personalized search and localized content delivery. In this paper, we study the problem of profiling Twitter users' locations with their following network and tweets. We propose a…

Databases · Computer Science 2012-08-02 Rui Li , Shengjie Wang , Kevin Chen-Chuan Chang

Predicting the geographical location of users of social media like Twitter has found several applications in health surveillance, emergency monitoring, content personalization, and social studies in general. In this work we contribute to…

Social and Information Networks · Computer Science 2021-12-15 Federico M. Funes , José Ignacio Alvarez-Hamelin , Mariano G. Beiró

Social media have become a significant venue for information sharing of live updates. Users of social media are producing and sharing large amount of personal data as a part of the live updates. A significant percentage of this data…

Computers and Society · Computer Science 2015-12-03 Davut Deniz Yavuz , Osman Abul

Online social networks being extended to geographical space has resulted in large amount of user check-in data. Understanding check-ins can help to build appealing applications, such as location recommendation. In this paper, we propose…

Social and Information Networks · Computer Science 2016-10-13 Jun Pang , Yang Zhang

Twitter is recently being used during crises to communicate with officials and provide rescue and relief operation in real time. The geographical location information of the event, as well as users, are vitally important in such scenarios.…

Machine Learning · Computer Science 2019-01-25 Abhinav Kumar , Jyoti Prakash Singh

We present a new algorithm for inferring the home location of Twitter users at different granularities, including city, state, time zone or geographic region, using the content of users tweets and their tweeting behavior. Unlike existing…

Social and Information Networks · Computer Science 2014-03-11 Jalal Mahmud , Jeffrey Nichols , Clemens Drews

In many Twitter studies, it is important to know where a tweet came from in order to use the tweet content to study regional user behavior. However, researchers using Twitter to understand user behavior often lack sufficient geo-tagged…

Social and Information Networks · Computer Science 2017-11-21 Binxuan Huang , Kathleen M. Carley

The increasing popularity of the social networking service, Twitter, has made it more involved in day-to-day communications, strengthening social relationships and information dissemination. Conversations on Twitter are now being explored…

Social and Information Networks · Computer Science 2017-01-16 Oluwaseun Ajao , Jun Hong , Weiru Liu

Nowadays, geographic information related to Twitter is crucially important for fine-grained applications. However, the amount of geographic information avail- able on Twitter is low, which makes the pursuit of many applications challenging.…

Computation and Language · Computer Science 2017-05-09 Hayate Iso , Shoko Wakamiya , Eiji Aramaki

Everyday place descriptions often contain place names of fine-grained features, such as buildings or businesses, that are more difficult to disambiguate than names referring to larger places, for example cities or natural geographic…

Information Retrieval · Computer Science 2018-08-21 Hao Chen , Maria Vasardani , Stephan Winter

Associating type to locations can be used to enrich maps and can serve a plethora of geospatial applications. An automatic method to do so could make the process less expensive in terms of human labor, and faster to react to changes. In…

Computation and Language · Computer Science 2020-09-21 Elad Kravi , Benny Kimelfeld , Yaron Kanza , Roi Reichart

Location based services, already popular with end users, are now inevitably becoming part of new wireless infrastructures and emerging business processes. The increasingly popular Deep Learning (DL) artificial intelligence methods perform…

Machine Learning · Computer Science 2022-01-25 Anže Pirnat , Blaž Bertalanič , Gregor Cerar , Mihael Mohorčič , Marko Meža , Carolina Fortuna

Accurate estimation of user location is important for many online services. Previous neural network based methods largely ignore the hierarchical structure among locations. In this paper, we propose a hierarchical location prediction neural…

Social and Information Networks · Computer Science 2019-10-30 Binxuan Huang , Kathleen M. Carley

Inferring locations from user texts on social media platforms is a non-trivial and challenging problem relating to public safety. We propose a novel non-uniform grid-based approach for location inference from Twitter messages using Quadtree…

Information Retrieval · Computer Science 2024-01-17 Oluwaseun Ajao , Deepayan Bhowmik , Shahrzad Zargari

The tremendous popularity gained by Online Social Networks (OSNs) raises natural concerns about user privacy in social media platforms. Though users in OSNs can tune their privacy by deliberately deciding what to share, the interaction with…

Social and Information Networks · Computer Science 2019-03-28 Luca Luceri , Davide Andreoletti , Silvia Giordano

Accurate localization of proteins from fluorescence microscopy images is challenging due to the inter-class similarities and intra-class disparities introducing grave concerns in addressing multi-class classification problems. Conventional…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Muhammad Tahir , Saeed Anwar , Ajmal Mian , Abdul Wahab Muzaffar
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