Description logics (DLs) and logic programs (LPs) are important representation languages for the Semantic Web. In this paper, we address an emerging problem in such languages, namely, the problem of evaluating ranked top-k queries. Specifically, we show how to compute the top-k answers in a datacomplexity tractable combination of DLs and LPs under vagueness.

mation-processing and communications; (ii) that the national information infrastructure will determine the pace of progress in that overall process; and (iii), that these developments in the digitization and NII arenas will form multimedia as the 'break-through industry'. Around 1992, America witnessed an emerging consensus on three specific points: namely, (i) that digitization is powering a t...

The proposed research defines a novel technique which applies an advanced Information Retrieval (IR) method to leverage textual information embedded in software artifacts in order to capture coupling between classes. More specifically, here we propose the use of new emerging IR techniques based on topic modeling, namely Relational Topic Model (RTM), to define a coupling metric useful for impact...

This report presents research activities carried out during the first year of doctorate. It describes the area of Computer Science I have focused on and the key problems I have addressed, namely reliability and performance issues for emerging Web based applications and infrastructures. Original results already achieved are shortly presented and possible directions of future research work are fi...

POST is a decentralized messaging infrastructure that supports a wide range of collaborative applications, including electronic mail, instant messaging, chat, news, shared calendars and whiteboards. POST is highly resilient, secure, scalable and does not rely on dedicated servers. Instead, POST is built upon a peer-to-peer (p2p) overlay network, consisting of participants’ desktop computers. PO...

• Emerging post-Arctic tourism results from Anthropocene and climate change impacts. Post-Arctic takes place in a post-apocalyptic Arctic. In tourism, opportunities to see glaciers iconic wildlife are gone. products will be the result of how Arctic is portrayed today.

Abstract In this article, we examine secondary mathematics teachers’ work with resources using the Documentational Approach to Didactics lens. Specifically, look at and a teacher’s scheme of use (aims, rules actions, operational invariants, inferences) these across set lessons (macro-level analysis) that aim towards students’ preparation for examinations how emerges in three on same topic (micr...