Part I: Knowledge Engineering and Semantic Web.- A Three-stage Consensus-based Method for Collective Knowledge Determination.- Fuzzy Ontology Modeling by Utilizing Fuzzy Set and Fuzzy Description Logic.- An Approach for Recommending Group Experts on Question and Answering Sites.- A method for uncertainty elicitation of experts using belief function.- Storing Hypergraph-based Data Models in Non-hypergraph Data Storage.- Part II: Natural Language Processing and Text Mining.- A Fuzzy Logic Approach to Predict the Popularity of a Presidential Candidate.- DNA Sequences Representation Derived from Discrete Wavelet Transformation for Text Similarity Recognition.- Tweet integration by finding the shortest paths on a word graph.- Event detection in Twitter: Methodological Evaluation and Structural Analysis of the Bibliometric Data.- Combination of inner approach and context-based approach for extracting feature of medical record data.- A Novel Method to Predict Type for DBpedia Entity.- Context-Based Personalized Predictors of the Length of Written Responses to Open-ended Questions of Elementary School Students.- Part III: Machine Learning and Data Mining.- Robust Scale-Invariant Normalization and Similarity Measurement for Time Series Data.