... between political agents (politicians, political associations and political institutions) over time. Social systems Natural language Semantic web Politics Ontology Philosophy The intensive use of the web as a media channel and the democratisation of publishing tools are leading...

... --> Information representation Information retrieval Natural language Heting Chu's second edition of Information Representation and Retrieval in the Digital Age is a book that covers several aspects of the fast‐changing field of information retrieval, providing useful insights into related issues...