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These transactions publish research in computer-based methods of computational collective intelligence (CCI) and their applications in a wide range of fields such as the semantic web, social networks, and multi-agent systems. TCCI strives to cover new methodological, theoretical and practical aspects of CCI understood as the form of intelligence that emerges from the collaboration and competition of many individuals (artificial and/or natural). The application of multiple computational intelligence technologies, such as fuzzy systems, evolutionary computation, neural systems, consensus theory, etc., aims to support human and other collective intelligence and to create new forms of CCI in natural and/or artificial systems. This thirtieth issue is a regular issue with 12 selected papers.

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Analyzing the Effects of Alternative Decisions in a Multiagent System with Stigmergy-Based Interactions.- Modelling of Emotional Contagion in Soccer Fans.- An approach for Web Service selection and dynamic composition based on Linked Open Data.- Linguistic rules for ontology population from customer request.- Evolutionary Harmony Search Algorithm for sport scheduling problem.- Performance Analysis of Different Learning Algorithms of Feed Forward Neural Network Regarding Fetal Abnormality Detection.- DWIaaS: Data Warehouse Infrastructure as a Service for Big Data Analytics.- Hybrid Soft Computing for Atmospheric Pollution-Climate Change Data Mining.- Hiring Expert Consultants in E-Healthcare: An Analytics-Based Two Sided Matching Approach.- A fuzzy logic-based anticipation car-following model.- Fault-Tolerance in XJAF Agent Middleware.

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