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Information diffusion prediction is a fundamental task which forecasts how an information item will spread among users. In recent years, deep learning based methods, especially those based on recurrent neural networks (RNNs), have achieved…

社会与信息网络 · 计算机科学 2020-12-17 Haoran Wang , Cheng Yang

We develop a fully discriminative learning approach for supervised Latent Dirichlet Allocation (LDA) model using Back Propagation (i.e., BP-sLDA), which maximizes the posterior probability of the prediction variable given the input…

机器学习 · 计算机科学 2015-11-03 Jianshu Chen , Ji He , Yelong Shen , Lin Xiao , Xiaodong He , Jianfeng Gao , Xinying Song , Li Deng

Word clouds became a standard tool for presenting results of natural language processing methods such as topic modelling. They exhibit most important words, where word size is often chosen proportional to the relevance of words within a…

统计计算 · 统计学 2023-02-14 Peter Winker

Accurate and efficient product classification is significant for E-commerce applications, as it enables various downstream tasks such as recommendation, retrieval, and pricing. Items often contain textual and visual information, and…

人工智能 · 计算机科学 2020-11-25 Varnith Chordia , Vijay Kumar BG

Accurate gross tumor volume segmentation on multi-modal medical data is critical for radiotherapy planning in nasopharyngeal carcinoma and glioblastoma. Recent advances in deep neural networks have brought promising results in medical image…

计算机视觉与模式识别 · 计算机科学 2025-08-29 Jingyun Yang , Guoqing Zhang , Jingge Wang , Yang Li

Topic modeling is used for discovering latent semantic structure, usually referred to as topics, in a large collection of documents. The most widely used methods are Latent Dirichlet Allocation and Probabilistic Latent Semantic Analysis.…

计算与语言 · 计算机科学 2020-08-24 Dimo Angelov

The exponential growth of online social network platforms and applications has led to a staggering volume of user-generated textual content, including comments and reviews. Consequently, users often face difficulties in extracting valuable…

计算与语言 · 计算机科学 2023-08-23 Anusuya Krishnan

Latent Dirichlet allocation (LDA) is a popular topic modeling technique in academia but less so in industry, especially in large-scale applications involving search engine and online advertising systems. A main underlying reason is that the…

信息检索 · 计算机科学 2015-12-08 Yi Wang , Xuemin Zhao , Zhenlong Sun , Hao Yan , Lifeng Wang , Zhihui Jin , Liubin Wang , Yang Gao , Ching Law , Jia Zeng

Multimodal deep learning systems which employ multiple modalities like text, image, audio, video, etc., are showing better performance in comparison with individual modalities (i.e., unimodal) systems. Multimodal machine learning involves…

机器学习 · 计算机科学 2022-01-19 Anil Rahate , Rahee Walambe , Sheela Ramanna , Ketan Kotecha

The tremendous growth of social media content on the Internet has inspired the development of the text analytics to understand and solve real-life problems. Leveraging statistical topic modelling helps researchers and practitioners in…

社会与信息网络 · 计算机科学 2016-08-09 Marina Sokolova , Kanyi Huang , Stan Matwin , Joshua Ramisch , Vera Sazonova , Renee Black , Chris Orwa , Sidney Ochieng , Nanjira Sambuli

Topic modeling is widely used for analytically evaluating large collections of textual data. One of the most popular topic techniques is Latent Dirichlet Allocation (LDA), which is flexible and adaptive, but not optimal for e.g. short texts…

计算与语言 · 计算机科学 2022-12-19 Muriël de Groot , Mohammad Aliannejadi , Marcel R. Haas

Multimodal semantic understanding often has to deal with uncertainty, which means the obtained messages tend to refer to multiple targets. Such uncertainty is problematic for our interpretation, including inter- and intra-modal uncertainty.…

计算机视觉与模式识别 · 计算机科学 2023-07-21 Yatai Ji , Junjie Wang , Yuan Gong , Lin Zhang , Yanru Zhu , Hongfa Wang , Jiaxing Zhang , Tetsuya Sakai , Yujiu Yang

Topic modeling algorithms traditionally model topics as list of weighted terms. These topic models can be used effectively to classify texts or to support text mining tasks such as text summarization or fact extraction. The general…

信息检索 · 计算机科学 2021-04-20 Jamal Al Qundus , Silvio Peikert , Adrian Paschke

Applying traditional collaborative filtering to digital publishing is challenging because user data is very sparse due to the high volume of documents relative to the number of users. Content based approaches, on the other hand, is…

计算与语言 · 计算机科学 2015-01-20 Lars Maaloe , Morten Arngren , Ole Winther

We propose a Topic Compositional Neural Language Model (TCNLM), a novel method designed to simultaneously capture both the global semantic meaning and the local word ordering structure in a document. The TCNLM learns the global semantic…

机器学习 · 计算机科学 2018-02-27 Wenlin Wang , Zhe Gan , Wenqi Wang , Dinghan Shen , Jiaji Huang , Wei Ping , Sanjeev Satheesh , Lawrence Carin

In this study, we focus on automated approaches to detect depression from clinical interviews using multi-modal machine learning (ML). Our approach differentiates from other successful ML methods such as context-aware analysis through…

机器学习 · 计算机科学 2024-12-30 Genevieve Lam , Huang Dongyan , Weisi Lin

This work presents an end-to-end trainable deep bidirectional LSTM (Long-Short Term Memory) model for image captioning. Our model builds on a deep convolutional neural network (CNN) and two separate LSTM networks. It is capable of learning…

计算机视觉与模式识别 · 计算机科学 2016-07-21 Cheng Wang , Haojin Yang , Christian Bartz , Christoph Meinel

Standard LDA model suffers the problem that the topic assignment of each word is independent and word correlation hence is neglected. To address this problem, in this paper, we propose a model called Word Related Latent Dirichlet Allocation…

计算与语言 · 计算机科学 2014-11-11 Xun Wang

This paper proposes a new methodology to study sequential corpora by implementing a two-stage algorithm that learns time-based topics with respect to a scale of document positions and introduces the concept of Topic Scaling which ranks…

信息检索 · 计算机科学 2021-04-05 Sami Diaf , Ulrich Fritsche

In recent years, one of the most popular techniques in the computer vision community has been the deep learning technique. As a data-driven technique, deep model requires enormous amounts of accurately labelled training data, which is often…

计算机视觉与模式识别 · 计算机科学 2022-10-10 Zihan Yang , Richard O. Sinnott , James Bailey , Qiuhong Ke
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