For documents with complex or atypical annotations, multihierarchical structures play the role of the document tree in traditional XML documents. We define a model of overlapping...
Abstract. We propose a conceptual model for semantic search and implement it in security access control. The model provides security access control to extend the search capabilitie...
Named Entity Recognition (NER) plays a relevant role in several Natural Language Processing tasks. Question-Answering (QA) is an example of such, since answers are frequently name...
In this paper we want to point out some issues arising when a natural language processing task involves several languages (like multilingual, multidocument summarization and the m...
The field of opinion mining has emerged in recent years as an exciting challenge for computational linguistics: investigating how humans express subjective judgments through lingu...