The LNCS Journal on Data Semantics is devoted to the presentation of notable work that, in one way or another, addresses research and development on issues related to data semantics. Based on the highly visible publication platform Lecture Notes in Computer Science, this new journal is widely disseminated and available worldwide.

The scope of the journal ranges from theories supporting the formal definition of semantic content to innovative domain-specific applications of semantic knowledge. The journal addresses researchers and advanced practitioners working on the semantic web, interoperability, mobile information services, data warehousing, knowledge representation and reasoning, conceptual database modeling, ontologies, and artificial intelligence.

The LNCS Journal on Data Semantics is devoted to the presentation of notable work that, in one way or another, addresses research and development on issues related to data semantics. The scope of the journal ranges from theories supporting the formal definition of semantic content to innovative domain-specific applications of semantic knowledge.

This book constitutes the thoroughly refereed post proceedings of two international workshops on special aspects of digital libraries, namely the First International Workshop on Natural Language Processing for Digital Libraries, NLP4DL 2009, held in Viareggio, Italy in June 2009 and the CACAO Project Workshop Advanced Technologies for Digital Libraries, AT4DL 2009, held in Trento, Italy in September 2009. A new open call was sent after the workshops. The revised full papers presented at the workshops and the newly submitted ones went through two rounds of reviewing and revision. The 10 papers selected address various aspects of NLP in digital libraries, search, classification, and digital document processing.