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Microblogging

About: Microblogging is a research topic. Over the lifetime, 4186 publications have been published within this topic receiving 137030 citations. The topic is also known as: microblog.


Papers
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Journal ArticleDOI
TL;DR: Wang et al. as mentioned in this paper empirically examined the spread of police microblogs in Chinese municipal police departments from the perspective of organizational innovation diffusion, and found that government size, internet penetration rate, regional diffusion effects and upper-tier pressure are positively and significantly associated with the adoption and earliness of microblogs, whereas fiscal revenue, economic development and openness, E-government and public safety have no significant effects.
Abstract: Governments across many countries are adopting new social media (e.g. twitter), and police departments are engaging in the bandwagon too. We empirically examine the spread of police microblogging in Chinese municipal police departments from the perspective of organizational innovation diffusion. The results show that government size, internet penetration rate, regional diffusion effects and upper-tier pressure are positively and significantly associated with the adoption and earliness of police microblogging, whereas fiscal revenue, economic development and openness, E-government and public safety have no significant effects. We also find that police microblogging diffusion is contingent on different variables at different phases.

83 citations

28 Mar 2018
TL;DR: This paper proposes to use the linked users across social networking sites and e-commerce websites as a bridge to map users’ social networking features to another feature representation for product recommendation, and develops a feature-based matrix factorization approach which can leverage the learnt user embeddings for cold-start product recommendation.
Abstract: In recent years, the boundaries between ecommerce and social networking have become increasingly blurred. Many e-commerce websites support the mechanism of social login where users can sign on the websites using their social network identities such as their Facebook or Twitter accounts. Users can also post their newly purchased products on microblogs with links to the e-commerce product web pages. In this paper we propose a novel solution for cross-site coldstart product recommendation which aims to recommend products from e-commerce websites to users at social networking sites in “cold-start” situations, a problem which has rarely been explored before. A major challenge is how to leverage knowledge extracted from social networking sites for cross-site cold-start product We propose to use the linked users across social networking sites and e-commerce websites (users who have social networking accounts and have made purchases on e-commerce websites) as a bridge to map users’ social networking features to another feature representation for product recommendation. In specific, we propose learning both users’ and products’ feature representations (called user embeddings and product embeddings, respectively) from data collected from ecommerce websites using recurrent neural networks and then apply a modified gradient boosting trees method to transform users’ social networking features into user embeddings. We then develop a feature-based matrix factorization approach which can leverage the learnt user embeddings for cold-start product recommendation. Experimental results on a large dataset constructed from the largest Chinese microblogging service SINA WEIBO and the largest Chinese B2C e-commerce website JINGDONG have shown the effectiveness of our proposed framework.

83 citations

Journal ArticleDOI
Shigang Liu1, Yu Wang1, Jun Zhang1, Chao Chen1, Yang Xiang1 
TL;DR: FOS, a fuzzy- based oversampling method that generates synthetic data samples from limited observed samples based on the idea of fuzzy-based information decomposition, is proposed and an ensemble learning approach that learns more accurate classifiers from imbalanced data in three steps is developed.

82 citations

Journal ArticleDOI
30 Jun 2021-Elements
TL;DR: sentiment analysis and topic modeling found an increase in tweets about COVID-19 during key periods such as the circuit breaker and found that the overall sentiment polarity was dominantly positive, however, emotion analysis revealed that there were changes in the prevalence of fear and joy emotions over time, due to real-life COVID
Abstract: Microblogging has become one of the most useful tools for sharing everyday life events and news and for expressing opinions about those events. As Twitter posts are short and constantly being generated, they are a great source for providing public sentiment towards events that occurred throughout the COVID-19 period in Singapore. In this project, we perform sentiment analysis and topic modeling on the tweets about COVID-19 in Singapore, from 1 February 2020 to 31 August 2020. We accomplished this by collecting tweets discussing about COVID-19 and geolocated as ‘Singapore’, using the Python library ‘SNSCRAPE’. We used the sentiments returned from the VADER lexicon-based classifier and emotions from pre-trained recurrent neural networks to find correlations between real-life events and sentiment changes throughout the whole period. From our analysis, we discovered an increase in tweets about COVID-19 during key periods such as the circuit breaker and found that the overall sentiment polarity was dominantly positive. However, emotion analysis revealed that there were changes in the prevalence of fear and joy emotions over time, due to real-life COVID-19 developments in Singapore. Additionally, sentiment polarity was found to differ from topic to topic.

82 citations

Book ChapterDOI
18 Dec 2011
TL;DR: This paper focuses on sentiment analysis for Twitter messages (tweets) by the analysis of emotion tokens, including emotion symbols, irregular forms of words and combined punctuations, which become a useful signal for sentiment analysis on multilingual tweets.
Abstract: Twitter is a microblogging service where worldwide users publish their feelings. However, sentiment analysis for Twitter messages (tweets) is regarded as a challenging problem because tweets are short and informal. In this paper, we focus on this problem by the analysis of emotion tokens, including emotion symbols (e.g. emoticons), irregular forms of words and combined punctuations. According to our observation on five million tweets, these emotion tokens are commonly used (0.47 emotion tokens per tweet). They directly express one's emotion regardless of his language; hence become a useful signal for sentiment analysis on multilingual tweets. Firstly, emotion tokens are extracted automatically from tweets. Secondly, a graph propagation algorithm is proposed to label the tokens' polarities. Finally, a multilingual sentiment analysis algorithm is introduced. Comparative evaluations are conducted among semantic lexicon based approach and some state-of-the-art Twitter sentiment analysis Web services, both on English and non-English tweets. Experimental results show effectiveness of the proposed algorithms.

81 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023202
2022551
2021153
2020238
2019226
2018282