نتایج جستجو برای: topic selection

تعداد نتایج: 472724  

Journal: :Interceram - International Ceramic Review 2022

2015
Yi Li Jong-Joo Kim

Inferring the effective population size and the pattern of selection signatures is of interest both from an evolutionary perspective and to improve models for mapping of quantitative trait genes. We used DNA samples of 61 sires and 486 progeny of the Hanwoo, genotyped by the Illumina Bovine SNP50 BeadChip, to analyze the genetic structure. Our study showed a persistent decline in effective popu...

2000
M. Carreras J. Batlle P. Ridao G. N. Roberts

Traditionally, deliberative reasoning methods based on a world model have been used to guide Autonomous Vehicles. Nevertheless, due to serious problems when dealing with complex and changing environments the alternative approach of reactive architectures appeared, directly coupling perception and action without any world representation. This paper describes the characteristics and variants of r...

The global cyberspace networks provide individuals with platforms to can interact, exchange ideas, share information, provide social support, conduct business, create artistic media, play games, engage in political discussions, and many more. The term cyberspace has become a conventional means to describe anything associated with the Internet and the diverse Internet culture. In fact, cyberspac...

2014
Jen-Tzung Chien Ying-Lan Chang

This paper presents a flexible topic model based on the nested Indian buffet process (nIBP). The flexibility is achieved by relaxing three constraints: (1) number of topics is fixed, (2) topics are independent, and (3) topic hierarchy for a document is limited by a single tree path. Bayesian nonparametric learning is conducted to build a tree model where the number of topics and the topic hiera...

Journal: :J. Information Science 2015
Cagri Toraman Fazli Can

Front-page news selection is the task of finding important news articles in news aggregators. In this study, we examine news selection for public front pages using raw text, without any meta-attributes such as click counts. A novel algorithm is introduced by jointly considering the importance and diversity of selected news articles and the length of front pages. We estimate the importance of ne...

Journal: :J. Informetrics 2016
Ludo Waltman

Citation impact indicators nowadays play an important role in research evaluation, and consequently these indicators have received a lot of attention in the bibliometric and scientometric literature. This paper provides an in-depth review of the literature on citation impact indicators. First, an overview is given of the literature on bibliographic databases that can be used to calculate citati...

2017
Tengfei Ma Tetsuya Nasukawa

Topic models have been successfully applied in lexicon extraction. However, most previous methods are limited to document-aligned data. In this paper, we try to address two challenges of applying topic models to lexicon extraction in non-parallel data: 1) hard to model the word relationship and 2) noisy seed dictionary. To solve these two challenges, we propose two new bilingual topic models to...

2004
Kevin Duh

This work explores the use of Support Vector Machines (SVM) for topic classification of conversations. An All-vs-One SVM system is used as the baseline. Several methods in feature weight scaling and feature selection are compared. Results suggest that the conversation domain requires a different set of methods from the written text domain. Finally, a feature selection method based on hierarchic...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید