Results 11 to 20 of about 116,535 (291)

Ranking social bookmarks using topic models [PDF]

open access: yes, 2010
Ranking of resources in social tagging systems is a difficult problem due to the inherent sparsity of the data and the vo- cabulary problems introduced by having a completely unre- stricted lexicon.
Harvey, M., Carman, M., Ruthven, I.
core   +6 more sources

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   +7 more sources

Automatic topic detection strategy for information retrieval in spoken document [PDF]

open access: yes, 2009
This paper suggests an alternative solution for the task of spoken document retrieval (SDR). The proposed system runs retrieval on multi-level transcriptions (word and phone) produced by word and phone recognizers respectively, and their outputs are ...
Misra, H.   +3 more
core   +9 more sources

lisja/LDA-H305: sentiment_analysis_of_wall_inscriptions_of_CDNDA v.1.0

open access: yes, 2023
<p>The final project of the course Computational Literacy (LDA-H305), autumn 2023</p ...
lisja
core   +1 more source

Image Feature Extraction Using 2D Mel-Cepstrum [PDF]

open access: yes, 2010
In this paper, a feature extraction method based on two-dimensional (2D) mel-cepstrum is introduced. Feature matrices resulting from the 2D mel-cepstrum, Fourier LDA approach and original image matrices are individually applied to the Common Matrix ...
Çakır, Serdar   +5 more
core   +1 more source

Solo pregado em suporte de escavações

open access: yesGeotecnia, 1986
Apresenta-se uma técnica de suporte de escavações baseada no conceito de solo reforçado. Descreve-se o mecanismo de rotura de dupla cunha e propõe-se um modelo de cálculo de estabilidade global em que é considerada a segurança ao deslizamento da cunha ...
José Veloso, Júlio Magro
doaj   +1 more source

K-means Weibo topic discovery model based on feature fusion

open access: yesDianzi Jishu Yingyong, 2020
Aiming at the shortcomings of high-dimensional sparseness in the short text of Weibo on traditional topic detection methods, a K-means Weibo topic discovery model based on feature fusion was proposed.
Li Hailei   +4 more
doaj   +1 more source

Real Time Face Recognition in Video Using Linear Discriminate Analysis and Local Binary Patterns [PDF]

open access: yesEngineering and Technology Journal, 2015
The need for robust recognition system in applications of surveillance and biometrics is increasing with the advancements in technology. The conventional method of passwords and pin numbers can be easily hacked,a so these are being rapidly replaced by ...
Yossra Hussain Ali   +1 more
doaj   +1 more source

Mel-cepstral Methods For Image Feature Extraction [PDF]

open access: yes, 2010
A feature extraction method based on two-dimensional (2D) mel-cepstrum is introduced. The concept of one-dimensional (1D) mel-cepstrum which is widely used in speech recognition is extended to 2D in this article.
Çakır, Serdar   +4 more
core   +1 more source

Strategies to enhance the competitiveness of semi-intensive aquaculture systems in costal earth ponds: the organic aquaculture approach

open access: yesFrontiers in Marine Science, 2014
Earthen ponds are the main production system for European seabass (Dicentrarchus labrax) and gilthead seabream (Sparus aurata) in Portugal and in Southern Spain.
Manuel Sardinha   +2 more
doaj   +1 more source

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