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In the domain of online advertising, our aim is to serve the best ad to a user who visits a certain webpage, to maximize the chance of a desired action to be performed by this user after seeing the ad. While it is possible to generate a…

人工智能 · 计算机科学 2015-02-25 Sahin Cem Geyik , Ali Dasdan , Kuang-Chih Lee

Discovering new intents is a crucial task in dialogue systems. Most existing methods are limited in transferring the prior knowledge from known intents to new intents. They also have difficulties in providing high-quality supervised signals…

计算与语言 · 计算机科学 2023-04-24 Hanlei Zhang , Hua Xu , Ting-En Lin , Rui Lyu

Originally designed to model text, topic modeling has become a powerful tool for uncovering latent structure in domains including medicine, finance, and vision. The goals for the model vary depending on the application: in some cases, the…

机器学习 · 统计学 2014-11-24 Finale Doshi-Velez , Byron Wallace , Ryan Adams

Matching identical products present in multiple product feeds constitutes a crucial element of many tasks of e-commerce, such as comparing product offerings, dynamic price optimization, and selecting the assortment personalized for the…

数据库 · 计算机科学 2024-02-16 Alicja Martinek , Szymon Łukasik , Amir H. Gandomi

Social scientists use surveys to probe the opinions and beliefs of populations, but these methods are slow, costly, and prone to biases. Recent advances in large language models (LLMs) enable the creating of computational representations or…

计算与语言 · 计算机科学 2024-10-23 Zihao He , Minh Duc Chu , Rebecca Dorn , Siyi Guo , Kristina Lerman

Latent Dirichlet Allocation (LDA) is a foundational model for discovering latent thematic structure in discrete data, but its Dirichlet prior cannot represent the rich correlations and hierarchical relationships often present among topics.…

机器学习 · 计算机科学 2026-02-24 Zheng Wang , Nizar Bouguila

We propose a novel clustering pipeline to detect and characterize influence campaigns from documents. This approach clusters parts of document, detects clusters that likely reflect an influence campaign, and then identifies documents linked…

计算与语言 · 计算机科学 2024-04-30 Zhengxiang Wang , Owen Rambow

Cluster analysis often serves as the initial step in the process of data classification. In this paper, the problem of clustering different length input data is considered. The edit distance as the minimum number of elementary edit…

信息检索 · 计算机科学 2007-05-23 Slobodan Petrovic , Gonzalo Alvarez

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

Clustering scientific publications can reveal underlying research structures within bibliographic databases. Graph-based clustering methods, such as spectral, Louvain, and Leiden algorithms, are frequently utilized due to their capacity to…

数字图书馆 · 计算机科学 2025-05-27 Vu Thi Huong , Thorsten Koch

We present {\em generative clustering} (GC) for clustering a set of documents, $\mathrm{X}$, by using texts $\mathrm{Y}$ generated by large language models (LLMs) instead of by clustering the original documents $\mathrm{X}$. Because LLMs…

机器学习 · 计算机科学 2024-12-19 Xin Du , Kumiko Tanaka-Ishii

In this paper we demonstrate the applicability of latent Dirichlet allocation (LDA) for classifying large Web document collections. One of our main results is a novel influence model that gives a fully generative model of the document…

信息检索 · 计算机科学 2010-06-28 István Bíró , Jácint Szabó

The Latent Dirichlet Allocation (LDA) model is a popular method for creating mixed-membership clusters. Despite having been originally developed for text analysis, LDA has been used for a wide range of other applications. We propose a new…

信息检索 · 计算机科学 2022-02-24 Gilson Shimizu , Rafael Izbicki , Denis Valle

Deep clustering is an essential task in modern artificial intelligence, aiming to partition a set of data samples into a given number of homogeneous groups (i.e., clusters). Recent studies have proposed increasingly advanced deep neural…

机器学习 · 计算机科学 2025-11-18 Tianyu Cheng , Qun Chen

Distributional text clustering delivers semantically informative representations and captures the relevance between each word and semantic clustering centroids. We extend the neural text clustering approach to text classification tasks by…

计算与语言 · 计算机科学 2020-11-25 Yekun Chai , Haidong Zhang , Shuo Jin

Inference in clustering is paramount to uncovering inherent group structure in data. Clustering methods which assess statistical significance have recently drawn attention owing to their importance for the identification of patterns in high…

统计方法学 · 统计学 2021-06-18 Debora Zava Bello , Marcio Valk , Gabriela Bettella Cybis

The goal of cluster analysis in survival data is to identify clusters that are decidedly associated with the survival outcome. Previous research has explored this problem primarily in the medical domain with relatively small datasets, but…

社会与信息网络 · 计算机科学 2017-03-10 S Chandra Mouli , Abhishek Naik , Bruno Ribeiro , Jennifer Neville

This paper is a comparison study in the context of Topic Detection on COVID-19 data. There are various approaches for Topic Detection, among which the Clustering approach is selected in this paper. Clustering requires distance and…

计算与语言 · 计算机科学 2021-11-17 Elnaz Zafarani-Moattar , Mohammad Reza Kangavari , Amir Masoud Rahmani

Latent Dirichlet Allocation (LDA) is a three-level hierarchical Bayesian model for topic inference. In spite of its great success, inferring the latent topic distribution with LDA is time-consuming. Motivated by the transfer learning…

机器学习 · 计算机科学 2015-08-06 Dongxu Zhang , Tianyi Luo , Dong Wang , Rong Liu

Latent Dirichlet Allocation (LDA) is a popular topic modeling technique for exploring document collections. Because of the increasing prevalence of large datasets, there is a need to improve the scalability of inference of LDA. In this…

人工智能 · 计算机科学 2011-07-20 Ke Zhai , Jordan Boyd-Graber , Nima Asadi