We propose in this paper two new models for modeling topic and word-topic dependencies between consecutive documents in document streams. The first model is a direct extension of Latent Dirichlet Allocation model (LDA) and makes use of a Dirichlet distribution to balance the influence of the LDA prior parameters wrt to topic and word-topic distribution
Hesam Amoualian +3 more
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Development of a Computer-Assisted Personal Interviewing (CAPI) Methodology to Assist the Photovoltaic Design Process [PDF]
Computer-Assisted Personal Interviewing (CAPI) is a well-known methodology in the development of social surveys. In this work, CAPI is used to guide the flow of a questionnaire aiming for the acquisition of data and information fundamental to optimise a ...
Roberto Moraes Samuel +10 more
doaj +1 more source
Knowledge and Skill Sets for Big Data Professions: Analysis of Recruitment Information Based on The Latent Dirichlet Allocation Model [PDF]
Universities, enterprises, and students are the key subjects in the talent training system of Big Data. This study used text mining, interviews, questionnaires, and other methods to analyze the characteristics and deficiencies of Chinese universities ...
Aiting Xu +4 more
doaj +1 more source
Mapping groundwater availability and adequacy in the Lower Zambezi River basin [PDF]
Groundwater plays an important role as a source of water for various socio-economic uses and environmental requirements in the lower Zambezi basin in Mozambique.
B. Pérez-Lapeña +3 more
doaj +1 more source
A Novel S-LDA Features for Automatic Emotion Recognition from Speech using 1-D CNN [PDF]
Emotions are explicit and serious mental activities, which find expression in speech, body gestures and facial features, etc. Speech is a fast, effective and the most convenient mode of human communication.
Pradeep Tiwari, A. D. Darji
doaj +1 more source
Systematic Mapping Study: Research Opportunities on Capacity Planning
The central idea of the research is to improve the efficiency and sustainability of data centers by implementing accurate capacity planning, which will also improve their performance and availability.
Yuggo Afrianto +3 more
doaj +1 more source
Do unbalanced data have a negative effect on LDA? [PDF]
For two-class discrimination, Xie and Qiu [The effect of imbalanced data sets on LDA: a theoretical and empirical analysis, Pattern Recognition 40 (2) (2007) 557–562] claimed that, when covariance matrices of the two classes were unequal, a (class ...
Anderson +12 more
core +1 more source
Why direct LDA is not equivalent to LDA [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gao, Hui, Davis, James W.
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Algorithm for Classification of Patient Groups Based on the LDA Method
Introduction. The article is devoted to the development of the algorithm of classification of several groups of patients using the LDA method at certain stages of its work. The algorithm allows achieve high discrimination value, to work with a variety of
Vitalii Budnyk, Mykola Budnyk
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Real Time Face Recognition in Video Using Linear Discriminate Analysis and Local Binary Patterns [PDF]
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
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