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With the constant growth of the World Wide Web and the number of documents in different languages accordingly, the need for reliable language detection tools has increased as well. Platforms such as Twitter with predominantly short texts…

Computation and Language · Computer Science 2016-08-31 Ivana Balazevic , Mikio Braun , Klaus-Robert Müller

We can extract useful information from social media data by adding the user's home location. However, since the user's home location is generally not publicly available, many researchers have been attempting to develop a more accurate home…

Social and Information Networks · Computer Science 2019-04-05 Yuki Kondo , Masatsugu Hangyo , Mitsuo Yoshida , Kyoji Umemura

Research on automatically geolocating social media users has conventionally been based on the text content of posts from a given user or the social network of the user, with very little crossover between the two, and no bench-marking of the…

Computation and Language · Computer Science 2015-06-17 Afshin Rahimi , Duy Vu , Trevor Cohn , Timothy Baldwin

Existing semantic segmentation works mainly focus on learning the contextual information in high-level semantic features with CNNs. In order to maintain a precise boundary, low-level texture features are directly skip-connected into the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Lanyun Zhu , Deyi Ji , Shiping Zhu , Weihao Gan , Wei Wu , Junjie Yan

We present a neural network model - based on CNNs, RNNs and a novel attention mechanism - which achieves 84.2% accuracy on the challenging French Street Name Signs (FSNS) dataset, significantly outperforming the previous state of the art…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Zbigniew Wojna , Alex Gorban , Dar-Shyang Lee , Kevin Murphy , Qian Yu , Yeqing Li , Julian Ibarz

Speaker extraction aims to extract the target speaker's voice from a multi-talker speech mixture given an auxiliary reference utterance. Recent studies show that speaker extraction benefits from the location or direction of the target…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-22 Meng Ge , Chenglin Xu , Longbiao Wang , Eng Siong Chng , Jianwu Dang , Haizhou Li

Named entity recognition, and other information extraction tasks, frequently use linguistic features such as part of speech tags or chunkings. For languages where word boundaries are not readily identified in text, word segmentation is a…

Computation and Language · Computer Science 2017-03-30 Nanyun Peng , Mark Dredze

Toponym Resolution, the task of assigning a location mention in a document to a geographic referent (i.e., latitude/longitude), plays a pivotal role in analyzing location-aware content. However, the ambiguities of natural language and a…

Information Retrieval · Computer Science 2018-05-10 Ehsan Kamalloo , Davood Rafiei

Modeling topics effectively in short texts, such as tweets and news snippets, is crucial to capturing rapidly evolving social trends. Existing topic models often struggle to accurately capture the underlying semantic patterns of short…

Computation and Language · Computer Science 2025-02-18 Shuyu Chang , Rui Wang , Peng Ren , Qi Wang , Haiping Huang

Do users from Carnegie Mellon University form social communities on Facebook? Do signal processing researchers from tightly collaborate with each other? Do Chinese restaurants in Manhattan cluster together? These seemingly different…

Social and Information Networks · Computer Science 2017-04-05 Siheng Chen , Yaoqing Yang , Shi Zong , Aarti Singh , Jelena Kovačević

Cities have been a thriving place for citizens over the centuries due to their complex infrastructure. The emergence of the Cyber-Physical-Social Systems (CPSS) and context-aware technologies boost a growing interest in analysing,…

Social and Information Networks · Computer Science 2017-05-30 Nazli Farajidavar , Sefki Kolozali , Payam Barnaghi

Events detected from social media streams often include early signs of accidents, crimes or disasters. Therefore, they can be used by related parties for timely and efficient response. Although significant progress has been made on event…

Social and Information Networks · Computer Science 2020-02-12 Yi Han , Shanika Karunasekera , Christopher Leckie

The problem of predicting the location of users on large social networks like Twitter has emerged from real-life applications such as social unrest detection and online marketing. Twitter user geolocation is a difficult and active research…

Machine Learning · Computer Science 2017-12-22 Tien Huu Do , Duc Minh Nguyen , Evaggelia Tsiligianni , Bruno Cornelis , Nikos Deligiannis

Stance detection entails ascertaining the position of a user towards a target, such as an entity, topic, or claim. Recent work that employs unsupervised classification has shown that performing stance detection on vocal Twitter users, who…

Social and Information Networks · Computer Science 2020-04-08 Younes Samih , Kareem Darwish

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

Micro-blogging services can track users' geo-locations when users check-in their places or use geo-tagging which implicitly reveals locations. This "geo tracking" can help to find topics triggered by some events in certain regions. However,…

Information Retrieval · Computer Science 2016-07-21 Siwei Qiang , Yongkun Wang , Yaohui Jin

For a news content distribution platform like Dailyhunt, Named Entity Recognition is a pivotal task for building better user recommendation and notification algorithms. Apart from identifying names, locations, organisations from the news…

Computation and Language · Computer Science 2020-03-02 Swapnil Ashok Jadhav

Through anonymisation and accessibility, social media platforms have facilitated the proliferation of hate speech, prompting increased research in developing automatic methods to identify these texts. This paper explores the classification…

Computation and Language · Computer Science 2021-11-08 Amikul Kalra , Arkaitz Zubiaga

Extracting topics from text has become an essential task, especially with the rapid growth of unstructured textual data. Most existing works rely on highly computational methods to address this challenge. In this paper, we argue that…

Computation and Language · Computer Science 2025-11-07 Salma Mekaoui , Hiba Sofyan , Imane Amaaz , Imane Benchrif , Arsalane Zarghili , Ilham Chaker , Nikola S. Nikolov

Social Internet content plays an increasingly critical role in many domains, including public health, disaster management, and politics. However, its utility is limited by missing geographic information; for example, fewer than 1.6% of…

Social and Information Networks · Computer Science 2013-11-19 Reid Priedhorsky , Aron Culotta , Sara Y. Del Valle