講座題目:Developing Information Granules for Intelligent Data Analysis and Decision-Making Processes
講座人:Witold Pedrycz 加拿大皇家科學(xué)院院士
講座時(shí)間:15:00
講座日期:2016-11-7
地點(diǎn):長(zhǎng)安校區(qū) 圖書(shū)館西附樓學(xué)術(shù)報(bào)告廳
主辦單位:計(jì)算機(jī)科學(xué)學(xué)院、圖書(shū)館
講座內(nèi)容:Information granules play a pivotal role in acquiring, representing, processing, and communicating knowledge at a suitable level of abstraction. Designing information granules is central to all pursuits of Granular Computing.
The presentation offers a comprehensive and systematically structured overview of methodologies and algorithms of designing information granules along with a suite of representative applications in data analysis and decision-making. The taxonomy embraces two main categories of data-driven and knowledge-oriented approaches. We introduce and discuss a principle of justifiable granularity, which serves as a key design vehicle facilitating a formation of information granules completed on a basis of available experimental evidence. Recent advances of the principle are discussed including (i) a collaborative version of the principle supporting data analysis carried out in the presence of distributed data, (ii) context-based version of the principle incorporating auxiliary sources of knowledge, and (iii) its hierarchical version facilitating handling experimental evidence being available at several levels of specificity (abstraction). A collection of design scenarios supporting a formation of hierarchies of information granules of higher type and higher order is presented.
In the realm of data analysis, we discuss a collaborative mode of discovery of relationships and a granular summarization of findings quantified in the language of information granules. We advocate the role of information granules ingroup decision-making highlighting a mechanism of calibration of individual decision-making models augmented by a granular knowledge transfer. We discuss matching mechanisms realized through information granules.