Semantics in Adaptive and Personalised Systems: Methods, Tools and Applications

Description

This monograph gives a complete overview of the techniques and the methods for semantics-aware content representation and shows how to apply such techniques in various use cases, such as recommender systems, user profiling and social media analysis. Throughout the book, the authors provide an extensive analysis of the techniques currently proposed in the literature and cover all the available tools and libraries to implement and exploit such methodologies in real-world scenarios. The book first introduces the problem of information overload and the reasons why content-based information needs to be taken into account. Next, the basics of Natural Language Processing are provided, by describing operations such as tokenization, stopword removal, lemmatization, stemming, part-of-speech tagging, along with the main problems and issues. Finally, the book describes the different approaches for semantics-aware content representation: such approaches are split into ‘exogenous’ and ‘endogenous’ ones, depending on whether external knowledge sources as DBpedia or geometrical models and distributional semantics are used, respectively. To conclude, several successful use cases and an extensive list of available tools and resources to implement the approaches are shown. Semantics in Adaptive and Personalised Systems definitely fills the gap between the extensive literature on content-based recommender systems, natural language processing, and the different types of semantics-aware representations. Front Matter ....Pages i-xviii Introduction (Pasquale Lops, Cataldo Musto, Fedelucio Narducci, Giovanni Semeraro)....Pages 1-20 Basics of Content Representation (Pasquale Lops, Cataldo Musto, Fedelucio Narducci, Giovanni Semeraro)....Pages 21-42 Encoding Endogenous Semantics (Pasquale Lops, Cataldo Musto, Fedelucio Narducci, Giovanni Semeraro)....Pages 43-69 Encoding Exogenous Semantics (Pasquale Lops, Cataldo Musto, Fedelucio Narducci, Giovanni Semeraro)....Pages 71-104 Adaptive and Personalized Systems Based on Semantics (Pasquale Lops, Cataldo Musto, Fedelucio Narducci, Giovanni Semeraro)....Pages 105-168 Conclusions and Future Challenges (Pasquale Lops, Cataldo Musto, Fedelucio Narducci, Giovanni Semeraro)....Pages 169-171 Back Matter ....Pages 173-186