全部文献期刊会议图书|学者科研项目
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作者:Konstantinos Sechidis , Matthew Sperrin ...
来源:[J].International Journal of Approximate Reasoning(IF 1.729), 2017, Vol.85, pp.159-177
摘要:Abstract(#br)Under-reporting occurs in survey data when there is a reason for participants to give a false negative response to a question, e.g. maternal smoking in epidemiological studies. Failing to correct this misreporting introduces biases and it may lead to misinformed deci...
作者:Konstantinos Sechidis , Noelia Sánchez-Maroño ...
来源:[J].Information Sciences(IF 3.643), 2019, Vol.496, pp.378-398
摘要:Abstract(#br)In an era in which the volume and complexity of datasets is continuously growing, feature selection techniques have become indispensable to extract useful information from huge amounts of data. However, existing algorithms may not scale well when dealing with huge da...
作者:Konstantinos Sechidis , Laura Azzimonti ...
来源:[J].Machine Learning(IF 1.467), 2019, Vol.108 (8-9), pp.1261-1286
摘要:Abstract(#br)Information theoretic feature selection methods quantify the importance of each feature by estimating mutual information terms to capture: the relevancy, the redundancy and the complementarity. These terms are commonly estimated by maximum likelihood, while an under-...
作者:Konstantinos Sechidis , Eleftherios Spyromitros-Xioufis , Ioannis Vlahavas
来源:[J].Entropy(IF 1.347), 2019, Vol.21 (9)
摘要:A key challenge in information theoretic feature selection is to estimate mutual information expressions that capture three desirable terms—the relevancy of a feature with the output, the redundancy and the complementarity between groups of features. The challenge becomes mo...
作者:Paraskevi Golia , Stella Kassidou , Konstantinos Sechidis
来源:[J].Procedia - Social and Behavioral Sciences, 2010, Vol.2 (2), pp.4523-4527
摘要:Abstract(#br)Even though the term “race” is of a questionable value, its importance comes from the fact that it is a social construction, which means it has some “objective” substance. The concept of “racial relations” is often determined not only through a procedu...
作者:Konstantinos Sechidis , Emily Turner ...
来源:[J].Studies in Health Technology and Informatics, 2017, Vol.235
摘要:We study information theoretic methods for ranking biomarkers. In clinical trials, there are two, closely related, types of biomarkers: predictive and prognostic, and disentangling them is a key challenge. Our first step is to phrase biomarker ranking in terms of optimizing an in...

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