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相关论文: A Temporal Extension of Latent Dirichlet Allocatio…

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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

A text mining approach is proposed based on latent Dirichlet allocation (LDA) to analyze the Consumer Financial Protection Bureau (CFPB) consumer complaints. The proposed approach aims to extract latent topics in the CFPB complaint…

信息检索 · 计算机科学 2018-07-20 Kaveh Bastani , Hamed Namavari , Jeffry Shaffer

Much of human knowledge sits in large databases of unstructured text. Leveraging this knowledge requires algorithms that extract and record metadata on unstructured text documents. Assigning topics to documents will enable intelligent…

In this paper, we propose guaranteed spectral methods for learning a broad range of topic models, which generalize the popular Latent Dirichlet Allocation (LDA). We overcome the limitation of LDA to incorporate arbitrary topic correlations,…

机器学习 · 计算机科学 2016-11-15 Forough Arabshahi , Animashree Anandkumar

Content-based video retrieval is one of the most challenging tasks in surveillance systems. In this study, Latent Dirichlet Allocation (LDA) topic model is used to annotate surveillance videos in an unsupervised manner. In scene…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Mohammad Kianpisheh

There has been an increasingly popular trend in Universities for curriculum transformation to make teaching more interactive and suitable for online courses. An increase in the popularity of online courses would result in an increase in the…

信息检索 · 计算机科学 2020-11-03 Nikhil Fernandes , Alexandra Gkolia , Nicolas Pizzo , James Davenport , Akshar Nair

We study a parametric family of latent variable models, namely topic models, equipped with a hierarchical structure among the topic variables. Such models may be viewed as a finite mixture of the latent Dirichlet allocation (LDA) induced…

统计理论 · 数学 2024-08-27 Sunrit Chakraborty , Rayleigh Lei , XuanLong Nguyen

Crowdfunding in the realm of the Social Web has received substantial attention, with prior research examining various aspects of campaigns, including project objectives, durations, and influential project categories for successful…

计算与语言 · 计算机科学 2024-01-09 Prathamesh Muzumdar , George Kurian , Ganga Prasad Basyal

The Audio Question Answering (AQA) task includes audio event classification, audio captioning, and open-ended reasoning. Recently, AQA has garnered attention due to the advent of Large Audio Language Models (LALMs). Current literature…

声音 · 计算机科学 2024-12-16 Arvind Krishna Sridhar , Yinyi Guo , Erik Visser

As electronically stored data grow in daily life, obtaining novel and relevant information becomes challenging in text mining. Thus people have sought statistical methods based on term frequency, matrix algebra, or topic modeling for text…

信息检索 · 计算机科学 2019-07-04 Clint P. George , Wei Xia , George Michailidis

Linear Discriminant Analysis (LDA) has been used as a standard post-processing procedure in many state-of-the-art speaker recognition tasks. Through maximizing the inter-speaker difference and minimizing the intra-speaker variation, LDA…

声音 · 计算机科学 2018-05-04 Shuai Wang , Zili Huang , Yanmin Qian , Kai Yu

The question of how to determine the number of independent latent factors (topics) in mixture models such as Latent Dirichlet Allocation (LDA) is of great practical importance. In most applications, the exact number of topics is unknown,…

机器学习 · 统计学 2014-01-23 E. D. Gutiérrez

Topic modeling is admittedly a convenient way to monitor markets trend. Conventionally, Latent Dirichlet Allocation, LDA, is considered a must-do model to gain this type of information. By given the merit of deducing keyword with token…

计算与语言 · 计算机科学 2023-09-19 Ching-Hsun Tseng , Shin-Jye Lee , Po-Wei Cheng , Chien Lee , Chih-Chieh Hung

We investigate the problem of learning a topic model - the well-known Latent Dirichlet Allocation - in a distributed manner, using a cluster of C processors and dividing the corpus to be learned equally among them. We propose a simple…

机器学习 · 计算机科学 2009-09-28 James Petterson , Tiberio Caetano

A conversational system needs to know how to switch between topics to continue the conversation for a more extended period. For this topic detection from dialogue corpus has become an important task for a conversation and accurate…

信息检索 · 计算机科学 2020-06-08 Haider Khalid , Vincent Wade

Modern Text-to-Speech (TTS) systems increasingly leverage Large Language Model (LLM) architectures to achieve scalable, high-fidelity, zero-shot generation. However, these systems typically rely on fixed-frame-rate acoustic tokenization,…

In this paper, we explore Latent Dirichlet Allocation (LDA) and Polylingual Latent Dirichlet Allocation (PolyLDA), as a means to discover trending styles in Overstock from deep visual semantic features transferred from a pretrained…

计算机视觉与模式识别 · 计算机科学 2018-04-25 Murium Iqbal , Adair Kovac , Kamelia Aryafar

A novel Twitter context aided content caching (TAC) framework is proposed for enhancing the caching efficiency by taking advantage of the legibility and massive volume of Twitter data. For the purpose of promoting the caching efficiency,…

信号处理 · 电气工程与系统科学 2021-01-05 Zhong Yang , Yuanwei Liu , Yue Chen , Joey Tianyi Zhou

Probabilistic topic models such as latent Dirichlet allocation (LDA) are popularly used with Bayesian inference methods such as Gibbs sampling to learn posterior distributions over topic model parameters. We derive a novel measure of LDA…

计算与语言 · 计算机科学 2019-09-17 Linzi Xing , Michael J. Paul , Giuseppe Carenini

Multimodal question answering tasks can be used as proxy tasks to study systems that can perceive and reason about the world. Answering questions about different types of input modalities stresses different aspects of reasoning such as…

计算与语言 · 计算机科学 2019-11-22 Haytham M. Fayek , Justin Johnson