a b s t r a c t a r t i c l e i n f oThis paper describes a methodology of OLAP cube navigation to identify interesting surprises by using a skewness based approach. Three different measures of interestingness of navigation rules are proposed. The navigation rules are examined for their interestingness in terms of their expectedness of skewness from neighborhood rules. A novel Axis Shift Theory (AST) to determine interesting navigation paths is presented along with an attribute influence approach for generalization of rules, which measures the interestingness of dimensional attributes and their relative influence on navigation paths. Detailed examples and extensive experiments demonstrate the effectiveness of interestingness of navigation rules.Published by Elsevier B.V.
The amount of healthcare data continues to exponentially grow everyday. The complexity of this data further limits the analytical capabilities of traditional healthcare systems. With value-based care, it is far more imminent for healthcare organizations to control the costs and to improve the quality of care in order to sustain their business. The purpose of the chapter is to gain insights into complexities and challenges that exist in current healthcare systems and how big data analytics and IoT can play a pivotal role to positively influence the quality of care and patient outcomes. The chapter also provides solutions and strategies for building cloud-based data asset that can deliver rich data analytics to both the healthcare systems and the patients.
Community Question Answering (CQA) systems is an emerging web-based information service. CQA enables web users to get precise answers to questions from experts of the specific domain.CQA is used in wide areas such as biomedicine, information technology, tourism, etc. This paper focused on finding experts in community question answering system using unsupervised machine learning technique. Our Proposed system consists of three phases namely i) Clustering tags ii) Determining Experts for the unanswered questions iii) Finding experts for the given Question. By doing the tag analysis process, identified similar tags in a particular domain, and formed a cluster. By doing question analysis, we found the unanswered questions in each domain and identified the experts. For the given question, suggest the expert by doing pattern matching technique. The results section proves that our system predicts the experts for the given question with good accuracy.
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