Results 41 to 50 of about 13,047 (256)

Review of Latent Dirichlet Allocation Methods Usable in Voice of Customer Analysis

open access: yes, 2018
The aim of the article is to detect and review existing topic modelling methods of Latent Dirichlet Allocation and their modifications usable in Voice of Customer analysis.
Lucie Sperkova
core   +1 more source

Analisis Topik Tagar Covidindonesia pada Instagram Menggunakan Latent Dirichlet Allocation

open access: yesJISKA (Jurnal Informatika Sunan Kalijaga), 2022
In this era, technology is increasingly sophisticated, this is evidenced by the number of people using the internet via cell phones, laptops, and other communication tools.
Kevin Rafi Adjie Putra Santoso   +3 more
doaj   +1 more source

Modeling Topic and Role Information in Meetings using the Hierarchical Dirichlet Process

open access: yes, 2008
In this paper, we address the modeling of topic and role information in multiparty meetings, via a nonparametric Bayesian model called the hierarchical Dirichlet process.
Renals, Steve, Huang, Songfang
core   +1 more source

Renormalization Analysis of Topic Models

open access: yesEntropy, 2020
In practice, to build a machine learning model of big data, one needs to tune model parameters. The process of parameter tuning involves extremely time-consuming and computationally expensive grid search.
Sergei Koltcov, Vera Ignatenko
doaj   +1 more source

Determinants of Knowledge and Usage of Generative Artificial Intelligence in Agricultural Extension: Evidence From Tennessee Extension Personnel

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper examines the determinants of generative AI (GenAI) knowledge and usage among agricultural extension professionals. Drawing on survey data from agricultural extension personnel in Tennessee, we employ regression analyses and latent Dirichlet allocation (LDA) for topic modeling of open‐ended responses to study the knowledge and usage ...
Abdelaziz Lawani   +3 more
wiley   +1 more source

High performance latent dirichlet allocation for text mining [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Latent Dirichlet Allocation (LDA), a total probability generative model, is a three-tier Bayesian model. LDA computes the latent topic structure of the data
Liu, Zelong
core  

Similarity Measures Based on Latent Dirichlet Allocation

open access: yes, 2013
We present in this paper the results of our investigation on semantic similarity measures at word- and sentence-level based on two fully-automated approaches to deriving meaning from large corpora: Latent Dirichlet Allocation, a probabilistic approach ...
Rajendra Banjade   +5 more
core   +1 more source

Estimating News Coverage Patterns using Latent Dirichlet Allocation (LDA)

open access: yesSukkur IBA Journal of Emerging Technologies, 2018
The growing rate of unstructured textual data has made an open challenge for the knowledge discovery, which aims extracting desired information from large collection of data.
Naeem Ahmed Mahoto
doaj   +1 more source

Partial Membership Latent Dirichlet Allocation

open access: yesCoRR, 2016
Topic models (e.g., pLSA, LDA, sLDA) have been widely used for segmenting imagery. However, these models are confined to crisp segmentation, forcing a visual word (i.e., an image patch) to belong to one and only one topic. Yet, there are many images in which some regions cannot be assigned a crisp categorical label (e.g., transition regions between a ...
Chao Chen 0040   +5 more
openaire   +2 more sources

Context‐centric proactive information delivery for Knowledge Work support: Opportunities, challenges, and directions. An Annual Review of Information Science and Technology (ARIST)

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract Context‐centric proactive information delivery (PID) is a relatively underexplored domain within recommender systems (RS) aimed at enhancing Knowledge Workers' productivity by proactively providing relevant information during digital tasks.
Mahta Bakhshizadeh   +4 more
wiley   +1 more source

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