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Convolutional neural network (CNN) is a neural network that can make use of the internal structure of data such as the 2D structure of image data. This paper studies CNN on text categorization to exploit the 1D structure (namely, word…

Computation and Language · Computer Science 2015-03-27 Rie Johnson , Tong Zhang

Flood of information is produced in a daily basis through the global Internet usage arising from the on-line interactive communications among users. While this situation contributes significantly to the quality of human life, unfortunately…

Computation and Language · Computer Science 2024-06-04 Spiros V. Georgakopoulos , Sotiris K. Tasoulis , Aristidis G. Vrahatis , Vassilis P. Plagianakos

Assigning a positive or negative score to a word out of context (i.e. a word's prior polarity) is a challenging task for sentiment analysis. In the literature, various approaches based on SentiWordNet have been proposed. In this paper, we…

Computation and Language · Computer Science 2013-09-24 Marco Guerini , Lorenzo Gatti , Marco Turchi

We present a statistical parsing framework for sentence-level sentiment classification in this article. Unlike previous works that employ syntactic parsing results for sentiment analysis, we develop a statistical parser to directly analyze…

Computation and Language · Computer Science 2015-03-06 Li Dong , Furu Wei , Shujie Liu , Ming Zhou , Ke Xu

Sentiment polarity classification is perhaps the most widely studied topic. It classifies an opinionated document as expressing a positive or negative opinion. In this paper, using movie review dataset, we perform a comparative study with…

Computation and Language · Computer Science 2013-11-05 Zitao Liu

Neural networks are one of the most popular approaches for many natural language processing tasks such as sentiment analysis. They often outperform traditional machine learning models and achieve the state-of-art results on most tasks.…

Computation and Language · Computer Science 2017-08-15 Tao Yu , Christopher Hidey , Owen Rambow , Kathleen McKeown

With the social media engagement on the rise, the resulting data can be used as a rich resource for analyzing and understanding different phenomena around us. A sentiment analysis system employs these data to find the attitude of social…

Social and Information Networks · Computer Science 2020-02-18 Morteza Rohanian , Mostafa Salehi , Ali Darzi , Vahid Ranjbar

We present an approach to learn a dense pixel-wise labeling from image-level tags. Each image-level tag imposes constraints on the output labeling of a Convolutional Neural Network (CNN) classifier. We propose Constrained CNN (CCNN), a…

Computer Vision and Pattern Recognition · Computer Science 2015-10-20 Deepak Pathak , Philipp Krähenbühl , Trevor Darrell

Analyzing authors' sentiments in texts as a technique for identifying text polarity can be practical and useful in various fields, including medicine and dentistry. Currently, due to factors such as patients' limited knowledge about their…

Computation and Language · Computer Science 2024-01-25 Sare Mahdavifar , Seyed Mostafa Fakhrahmad , Elham Ansarifard

In this paper, we propose a variational approach to unsupervised sentiment analysis. Instead of using ground truth provided by domain experts, we use target-opinion word pairs as a supervision signal. For example, in a document snippet "the…

Computation and Language · Computer Science 2020-08-24 Ziqian Zeng , Wenxuan Zhou , Xin Liu , Zizheng Lin , Yangqin Song , Michael David Kuo , Wan Hang Keith Chiu

An important part of the information gathering and data analysis is to find out what people think about, either a product or an entity. Twitter is an opinion rich social networking site. The posts or tweets from this data can be used for…

Information Retrieval · Computer Science 2024-09-05 Dwarampudi Mahidhar Reddy , N V Subba Reddy , N V Subba Reddy

We propose a weakly-supervised cell tracking method that can train a convolutional neural network (CNN) by using only the annotation of "cell detection" (i.e., the coordinates of cell positions) without association information, in which…

Computer Vision and Pattern Recognition · Computer Science 2020-07-17 Hiroki Tokunaga , Brian Kenji Iwana , Yuki Teramoto , Akihiko Yoshizawa , Ryoma Bise

Sentiment lexicons are instrumental for sentiment analysis. One can use a set of sentiment words provided in a sentiment lexicon and a lexicon-based classifier to perform sentiment classification. One major issue with this approach is that…

Computation and Language · Computer Science 2020-04-30 Shuai Wang , Guangyi Lv , Sahisnu Mazumder , Bing Liu

Current state of the art methods for generating semantic segmentation rely heavily on a large set of images that have each pixel labeled with a class of interest label or background. Coming up with such labels, especially in domains that…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 R. Austin McEver , B. S. Manjunath

Stress detection and monitoring is an active area of research with important implications for the personal, professional, and social health of an individual. Current approaches for affective state classification use traditional machine…

Machine Learning · Computer Science 2021-07-14 Ramesh Kumar Sah , Hassan Ghasemzadeh

Training convolutional networks for semantic segmentation with strong (per-pixel) and weak (per-bounding-box) supervision requires a large amount of weakly labeled data. We propose two methods for selecting the most relevant data with weak…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Panagiotis Meletis , Rob Romijnders , Gijs Dubbelman

Curriculum Learning (CL) is the idea that learning on a training set sequenced or ordered in a manner where samples range from easy to difficult, results in an increment in performance over otherwise random ordering. The idea parallels…

Computation and Language · Computer Science 2020-07-23 Vijjini Anvesh Rao , Kaveri Anuranjana , Radhika Mamidi

In aspect-level sentiment classification (ASC), it is prevalent to equip dominant neural models with attention mechanisms, for the sake of acquiring the importance of each context word on the given aspect. However, such a mechanism tends to…

Computation and Language · Computer Science 2019-06-07 Jialong Tang , Ziyao Lu , Jinsong Su , Yubin Ge , Linfeng Song , Le Sun , Jiebo Luo

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.…

Computation and Language · Computer Science 2017-04-04 Haixia Liu

This paper addresses the problem of sentence-level sentiment analysis. In recent years, Convolution and Recursive Neural Networks have been proven to be effective network architecture for sentence-level sentiment analysis. Nevertheless,…

Computation and Language · Computer Science 2018-01-30 Vinh D. Van , Thien Thai , Minh-Quoc Nghiem