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Related papers: TAN-NTM: Topic Attention Networks for Neural Topic…

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Learning meaningful topic models with massive document collections which contain millions of documents and billions of tokens is challenging because of two reasons: First, one needs to deal with a large number of topics (typically in the…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-12-17 Hsiang-Fu Yu , Cho-Jui Hsieh , Hyokun Yun , S. V. N Vishwanathan , Inderjit S. Dhillon

Attention mechanisms have attracted considerable interest in image captioning because of its powerful performance. Existing attention-based models use feedback information from the caption generator as guidance to determine which of the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-11 Zhihao Zhu , Zhan Xue , Zejian Yuan

A popular approach to topic modeling involves extracting co-occurring n-grams of a corpus into semantic themes. The set of n-grams in a theme represents an underlying topic, but most topic modeling approaches are not able to label these…

Computation and Language · Computer Science 2017-05-19 Justin Wood , Patrick Tan , Wei Wang , Corey Arnold

The topical stance detection problem addresses detecting the stance of the text content with respect to a given topic: whether the sentiment of the given text content is in FAVOR of (positive), is AGAINST (negative), or is NONE (neutral)…

Computation and Language · Computer Science 2018-01-10 Kuntal Dey , Ritvik Shrivastava , Saroj Kaushik

Topic models are valuable for understanding extensive document collections, but they don't always identify the most relevant topics. Classical probabilistic and anchor-based topic models offer interactive versions that allow users to guide…

Machine Learning · Computer Science 2024-02-08 Kyle Seelman , Mozhi Zhang , Jordan Boyd-Graber

This work combines algorithms based on word embeddings, dimensionality reduction, and clustering. The objective is to obtain topics from a set of unclassified texts. The algorithm to obtain the word embeddings is the BERT model, a neural…

Computation and Language · Computer Science 2023-12-08 Diego Saldaña Ulloa

Topic modeling is widely studied for the dimension reduction and analysis of documents. However, it is formulated as a difficult optimization problem. Current approximate solutions also suffer from inaccurate model- or data-assumptions. To…

Machine Learning · Computer Science 2019-10-25 Jianyu Wang , Xiao-Lei Zhang

We consider incorporating topic information into message-response matching to boost responses with rich content in retrieval-based chatbots. To this end, we propose a topic-aware convolutional neural tensor network (TACNTN). In TACNTN,…

Computation and Language · Computer Science 2016-09-23 Yu Wu , Wei Wu , Zhoujun Li , Ming Zhou

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

Spectral topic modeling algorithms operate on matrices/tensors of word co-occurrence statistics to learn topic-specific word distributions. This approach removes the dependence on the original documents and produces substantial gains in…

Computation and Language · Computer Science 2017-11-21 Moontae Lee , David Bindel , David Mimno

Existing document-level neural machine translation (NMT) models have sufficiently explored different context settings to provide guidance for target generation. However, little attention is paid to inaugurate more diverse context for…

Computation and Language · Computer Science 2022-01-06 Xu Zhang , Jian Yang , Haoyang Huang , Shuming Ma , Dongdong Zhang , Jinlong Li , Furu Wei

Data mining and knowledge discovery are essential aspects of extracting valuable insights from vast datasets. Neural topic models (NTMs) have emerged as a valuable unsupervised tool in this field. However, the predominant objective in NTMs,…

Artificial Intelligence · Computer Science 2024-12-24 Xin Gao , Yang Lin , Ruiqing Li , Yasha Wang , Xu Chu , Xinyu Ma , Hailong Yu

Aspect-level sentiment classification (ASC) aims to detect the sentiment polarity of a given opinion target in a sentence. In neural network-based methods for ASC, most works employ the attention mechanism to capture the corresponding…

Computation and Language · Computer Science 2020-10-26 Fei Zhao , Zhen Wu , Xinyu Dai

The amount of electronic documents in the Internet grows very quickly. How to effectively identify subjects for documents becomes an important issue. In past, the researches focus on the behavior of nouns in documents. Although subjects are…

Digital Libraries · Computer Science 2007-05-23 Kuang-hua Chen

Aspect-based opinion mining is widely applied to review data to aggregate or summarize opinions of a product, and the current state-of-the-art is achieved with Latent Dirichlet Allocation (LDA)-based model. Although social media data like…

Computation and Language · Computer Science 2016-09-22 Kar Wai Lim , Wray Buntine

Attention-based models have recently shown great performance on a range of tasks, such as speech recognition, machine translation, and image captioning due to their ability to summarize relevant information that expands through the entire…

Audio and Speech Processing · Electrical Eng. & Systems 2018-02-02 F A Rezaur Rahman Chowdhury , Quan Wang , Ignacio Lopez Moreno , Li Wan

In text-to-image generation tasks, the advancements of diffusion models have facilitated the fidelity of generated results. However, these models encounter challenges when processing text prompts containing multiple entities and attributes.…

Computation and Language · Computer Science 2024-04-23 Yihang Wu , Xiao Cao , Kaixin Li , Zitan Chen , Haonan Wang , Lei Meng , Zhiyong Huang

Recently, large pre-trained neural language models have attained remarkable performance on many downstream natural language processing (NLP) applications via fine-tuning. In this paper, we target at how to further improve the token…

Artificial Intelligence · Computer Science 2021-09-08 Mengyuan Zhou , Jian Ma , Haiqin Yang , Lianxin Jiang , Yang Mo

One of the challenges for text analysis in medical domains is analyzing large-scale medical documents. As a consequence, finding relevant documents has become more difficult. One of the popular methods to retrieve information based on…

Information Retrieval · Computer Science 2019-11-26 Amir Karami , Aryya Gangopadhyay , Bin Zhou , Hadi Kharrazi

A topic model is often formulated as a generative model that explains how each word of a document is generated given a set of topics and document-specific topic proportions. It is focused on capturing the word co-occurrences in a document…

Machine Learning · Computer Science 2022-03-16 Dongsheng Wang , Dandan Guo , He Zhao , Huangjie Zheng , Korawat Tanwisuth , Bo Chen , Mingyuan Zhou
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