10,918 research outputs found
Location Type Classification Using Tweet Content
Abstract—Location context in social media plays an impor-tant role in many applications. In addition to explicit location sharing via popular “check in ” service, user-posted content could also implicitly reveals users ’ location context. Identifying such a location context based on content is an interesting problem because it is not only important in inferring social ties between people, but also vital for applications such as user profiling and targeted advertising. In this paper, we study the problem of location type classification using tweet content. We extend probabilistic text classification models to incorporate temporal features and user history information in terms of probabilistic priors. Experimental results show that our extensions can boost classification accuracy effectively. Keywords-classification; location detection; social media; I
A Survey of Location Prediction on Twitter
Locations, e.g., countries, states, cities, and point-of-interests, are
central to news, emergency events, and people's daily lives. Automatic
identification of locations associated with or mentioned in documents has been
explored for decades. As one of the most popular online social network
platforms, Twitter has attracted a large number of users who send millions of
tweets on daily basis. Due to the world-wide coverage of its users and
real-time freshness of tweets, location prediction on Twitter has gained
significant attention in recent years. Research efforts are spent on dealing
with new challenges and opportunities brought by the noisy, short, and
context-rich nature of tweets. In this survey, we aim at offering an overall
picture of location prediction on Twitter. Specifically, we concentrate on the
prediction of user home locations, tweet locations, and mentioned locations. We
first define the three tasks and review the evaluation metrics. By summarizing
Twitter network, tweet content, and tweet context as potential inputs, we then
structurally highlight how the problems depend on these inputs. Each dependency
is illustrated by a comprehensive review of the corresponding strategies
adopted in state-of-the-art approaches. In addition, we also briefly review two
related problems, i.e., semantic location prediction and point-of-interest
recommendation. Finally, we list future research directions.Comment: Accepted to TKDE. 30 pages, 1 figur
Determine the User Country of a Tweet
In the widely used message platform Twitter, about 2% of the tweets contains
the geographical location through exact GPS coordinates (latitude and
longitude). Knowing the location of a tweet is useful for many data analytics
questions. This research is looking at the determination of a location for
tweets that do not contain GPS coordinates. An accuracy of 82% was achieved
using a Naive Bayes model trained on features such as the users' timezone, the
user's language, and the parsed user location. The classifier performs well on
active Twitter countries such as the Netherlands and United Kingdom. An
analysis of errors made by the classifier shows that mistakes were made due to
limited information and shared properties between countries such as shared
timezone. A feature analysis was performed in order to see the effect of
different features. The features timezone and parsed user location were the
most informative features.Comment: CTIT Technical Report, University of Twent
Using Twitter to learn about the autism community
Considering the raising socio-economic burden of autism spectrum disorder
(ASD), timely and evidence-driven public policy decision making and
communication of the latest guidelines pertaining to the treatment and
management of the disorder is crucial. Yet evidence suggests that policy makers
and medical practitioners do not always have a good understanding of the
practices and relevant beliefs of ASD-afflicted individuals' carers who often
follow questionable recommendations and adopt advice poorly supported by
scientific data. The key goal of the present work is to explore the idea that
Twitter, as a highly popular platform for information exchange, could be used
as a data-mining source to learn about the population affected by ASD -- their
behaviour, concerns, needs etc. To this end, using a large data set of over 11
million harvested tweets as the basis for our investigation, we describe a
series of experiments which examine a range of linguistic and semantic aspects
of messages posted by individuals interested in ASD. Our findings, the first of
their nature in the published scientific literature, strongly motivate
additional research on this topic and present a methodological basis for
further work.Comment: Social Network Analysis and Mining, 201
Traffic event detection framework using social media
This is an accepted manuscript of an article published by IEEE in 2017 IEEE International Conference on Smart Grid and Smart Cities (ICSGSC) on 18/09/2017, available online: https://ieeexplore.ieee.org/document/8038595
The accepted version of the publication may differ from the final published version.© 2017 IEEE. Traffic incidents are one of the leading causes of non-recurrent traffic congestions. By detecting these incidents on time, traffic management agencies can activate strategies to ease congestion and travelers can plan their trip by taking into consideration these factors. In recent years, there has been an increasing interest in Twitter because of the real-time nature of its data. Twitter has been used as a way of predicting revenues, accidents, natural disasters, and traffic. This paper proposes a framework for the real-time detection of traffic events using Twitter data. The methodology consists of a text classification algorithm to identify traffic related tweets. These traffic messages are then geolocated and further classified into positive, negative, or neutral class using sentiment analysis. In addition, stress and relaxation strength detection is performed, with the purpose of further analyzing user emotions within the tweet. Future work will be carried out to implement the proposed framework in the West Midlands area, United Kingdom.Published versio
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