Results 11 to 20 of about 7,298 (159)

Topic Classification of Central Bank Monetary Policy Statements: Evidence from Latent Dirichlet Allocation in Lesotho

open access: yesActa Universitatis Sapientiae: Economics and Business, 2022
This article develops a baseline on how to analyse the statements of monetary policy from Lesotho’s Central Bank using a method of topic classification that utilizes a machine learning algorithm known as Latent Dirichlet Allocation.
Damane Moeti
doaj   +1 more source

Pengamatan Tren Ulasan Hotel Menggunakan Pemodelan Topik Berbasis Latent Dirichlet Allocation

open access: yesJournal of Applied Informatics and Computing, 2022
Ketepatan dalam mengekstrak dan meringkas ribuan ulasan ke dalam beberapa topik menjadi kunci dalam pelaksanaan pengolahan data dan informasi lebih lanjut.
Suparyati Suparyati   +2 more
doaj   +1 more source

Text Categorization Based on Topic Model [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2009
In the text literature, many topic models were proposed to represent documents and words as topics or latent topics in order to process text effectively and accurately.
Shibin Zhou, Kan Li, Yushu Liu
doaj   +1 more source

Semantic N-Gram Topic Modeling [PDF]

open access: yesEAI Endorsed Transactions on Scalable Information Systems, 2020
In this paper a novel approach for effective topic modeling is presented. The approach is different fromtraditional vector space model-based topic modeling, where the Bag of Words (BOW) approach is followed.The novelty of our approach is that in phrase ...
Pooja Kherwa, Poonam Bansal
doaj   +1 more source

Discovering Tonal Profiles with Latent Dirichlet Allocation

open access: yesMusic & Science, 2021
Music analysis, in particular harmonic analysis, is concerned with the way pitches are organized in pieces of music, and a range of empirical applications have been developed, for example, for chord recognition or key finding. Naturally, these approaches
Fabian C. Moss, Martin Rohrmeier
doaj   +1 more source

Teacher professional learning community and interdisciplinary collaborative teaching path under the informationization basic education model [PDF]

open access: yesYugoslav Journal of Operations Research
The construction of a learning community cannot be separated from the participation of information technology. The current teacher learning community has problems of low interaction efficiency and insufficient enthusiasm for group cooperative teaching ...
Li Gen, Jamil Hazri Bin
doaj   +1 more source

Two-stage topic modelling of scientific publications: A case study of University of Nairobi, Kenya.

open access: yesPLoS ONE, 2021
Unsupervised statistical analysis of unstructured data has gained wide acceptance especially in natural language processing and text mining domains. Topic modelling with Latent Dirichlet Allocation is one such statistical tool that has been successfully ...
Leacky Muchene, Wende Safari
doaj   +1 more source

Latent Dirichlet Allocation for Uncovering Fraud Cases on Twitter

open access: yesJurnal Riset Informatika, 2023
Fraud is a phenomenon that continues to exist in society with a modus operandi that continues to evolve with the times. The mode of operation of fraud is continually evolving with technological advancements, globalization, and consumer behavior shifts ...
Sallu Muharomah   +1 more
doaj   +1 more source

Crowd labeling latent Dirichlet allocation [PDF]

open access: yesKnowledge and Information Systems, 2017
Large, unlabeled datasets are abundant nowadays, but getting labels for those datasets can be expensive and time-consuming. Crowd labeling is a crowdsourcing approach for gathering such labels from workers whose suggestions are not always accurate.
Luca Pion-Tonachini   +2 more
openaire   +2 more sources

Sequential latent Dirichlet allocation

open access: yesKnowledge and Information Systems, 2011
Understanding how topics within a document evolve over the structure of the document is an interesting and potentially important problem in exploratory and predictive text analytics. In this article, we address this problem by presenting a novel variant of latent Dirichlet allocation (LDA): Sequential LDA (SeqLDA).
Lan Du 0002   +3 more
openaire   +2 more sources

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