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Financial analyses of stock markets rely heavily on quantitative approaches in an attempt to predict subsequent or market movements based on historical prices and other measurable metrics. These quantitative analyses might have missed out…

计算与语言 · 计算机科学 2020-08-04 Shaan Aryaman , Nguwi Yok Yen

We propose a topic-dependent attention model for sentiment classification and topic extraction. Our model assumes that a global topic embedding is shared across documents and employs an attention mechanism to derive local topic embedding…

计算与语言 · 计算机科学 2019-08-20 Gabriele Pergola , Lin Gui , Yulan He

Moderation of reader comments is a significant problem for online news platforms. Here, we experiment with models for automatic moderation, using a dataset of comments from a popular Croatian newspaper. Our analysis shows that while…

计算与语言 · 计算机科学 2021-09-22 Elaine Zosa , Ravi Shekhar , Mladen Karan , Matthew Purver

This paper aims to show how some popular topics on social networks can be used to predict online newspaper views, related to the topics. Newspapers site and many social networks, become a good source of data to analyse and explain complex…

Computational methods to model political bias in social media involve several challenges due to heterogeneity, high-dimensional, multiple modalities, and the scale of the data. Political bias in social media has been studied in multiple…

计算机与社会 · 计算机科学 2021-09-21 Prasad hajare , Sadia Kamal , Siddharth Krishnan , Arunkumar Bagavathi

Conversational systems have become increasingly popular as a way for humans to interact with computers. To be able to provide intelligent responses, conversational systems must correctly model the structure and semantics of a conversation.…

计算与语言 · 计算机科学 2018-06-19 Svitlana Vakulenko , Maarten de Rijke , Michael Cochez , Vadim Savenkov , Axel Polleres

Citation sentiment analysis is an important task in scientific paper analysis. Existing machine learning techniques for citation sentiment analysis are focusing on labor-intensive feature engineering, which requires large annotated corpus.…

计算与语言 · 计算机科学 2017-04-04 Haixia Liu

Our day-to-day life has always been influenced by what people think. Ideas and opinions of others have always affected our own opinions. The explosion of Web 2.0 has led to increased activity in Podcasting, Blogging, Tagging, Contributing…

计算与语言 · 计算机科学 2013-04-17 Subhabrata Mukherjee , Pushpak Bhattacharyya

Social networks form a valuable source of world knowledge, where influential entities correspond to popular accounts. Unlike factual knowledge bases (KBs), which maintain a semantic ontology, structured semantic information is not available…

计算与语言 · 计算机科学 2024-09-24 Ogen Schlachet Drukerman , Einat Minkov

Semantic sentence embeddings are usually supervisedly built minimizing distances between pairs of embeddings of sentences labelled as semantically similar by annotators. Since big labelled datasets are rare, in particular for non-English…

计算与语言 · 计算机科学 2021-10-06 Marco Di Giovanni , Marco Brambilla

Identifying user stance related to a political event has several applications, like determination of individual stance, shaping of public opinion, identifying popularity of government measures and many others. The huge volume of political…

社会与信息网络 · 计算机科学 2022-01-20 Roshni Chakraborty , Maitry Bhavsar , Sourav Kumar Dandapat , Joydeep Chandra

The problem of ideology detection is to study the latent (political) placement for people, which is traditionally studied on politicians according to their voting behaviors. Recently, more and more studies begin to address the ideology…

社会与信息网络 · 计算机科学 2016-12-28 Yupeng Gu , Ting Chen , Yizhou Sun , Bingyu Wang

We provide an NLP framework to uncover four linguistic dimensions of political polarization in social media: topic choice, framing, affect and illocutionary force. We quantify these aspects with existing lexical methods, and propose…

计算与语言 · 计算机科学 2019-04-05 Dorottya Demszky , Nikhil Garg , Rob Voigt , James Zou , Matthew Gentzkow , Jesse Shapiro , Dan Jurafsky

With the rapid growth of online social media, people become increasingly overwhelmed by the volume and the content of the information present in the environment. The threshold model is currently one of the most common methods to capture the…

社会与信息网络 · 计算机科学 2020-03-27 Ece C. Mutlu , Ivan Garibay

Public opinion is shaped by the information news media provide, and that information in turn may be shaped by the ideological preferences of media outlets. But while much attention has been devoted to media bias via overt ideological…

计算与语言 · 计算机科学 2023-10-31 Yujian Liu , Xinliang Frederick Zhang , Kaijian Zou , Ruihong Huang , Nick Beauchamp , Lu Wang

Understanding how political attention is divided and over what subjects is crucial for research on areas such as agenda setting, framing, and political rhetoric. Existing methods for measuring attention, such as manual labeling according to…

社会与信息网络 · 计算机科学 2019-09-19 Libby Hemphill , Angela M. Schöpke-Gonzalez

Understanding semantic similarity among images is the core of a wide range of computer vision applications. An important step towards this goal is to collect and learn human perceptions. Interestingly, the semantic context of images is…

计算机视觉与模式识别 · 计算机科学 2017-09-19 Qiong Zeng , Baoquan Chen , Yanir Kleiman , Daniel Cohen-Or , Yangyan Li

Blogs-Online digital diary like application on web 2.0 has opened new and easy way to voice opinion, thoughts, and like-dislike of every Internet user to the World. Blogosphere has no doubt the largest user-generated content repository full…

人工智能 · 计算机科学 2012-01-11 Mehwish Aziz , Muhammad Rafi

Word embeddings capture semantic relationships based on contextual information and are the basis for a wide variety of natural language processing applications. Notably these relationships are solely learned from the data and subsequently…

计算与语言 · 计算机科学 2020-01-15 Stephanie Brandl , David Lassner , Maximilian Alber

With the current shift in the mass media landscape from journalistic rigor to social media, personalized social media is becoming the new norm. Although the digitalization progress of the media brings many advantages, it also increases the…

计算与语言 · 计算机科学 2023-04-18 Ciprian-Octavian Truică , Elena-Simona Apostol