By Grigoris Antoniou, Antonis Bikakis, Constantinos Papatheodorou (auth.), Barbara Catania, Mirjana Ivanović, Bernhard Thalheim (eds.)
This quantity comprises the easiest papers offered on the 14th East-European C- ference on Advances in Databases and data structures (ADBIS 2010), held in the course of September 20-24, 2010, in Novi unhappy, Serbia. ADBIS 2010 persevered the ADBIS sequence held in St. Petersburg (1997), Poznan (1998), Maribor (1999), Prague (2000), Vilnius (2001), Bratislava (2002), Dresden (2003), Budapest (2004), Tallinn (2005), Thessaloniki (2006), Varna (2007), Pori (2008), and Riga (2009). the most aim of the ADBIS sequence of meetings is to supply a discussion board for the dissemination of analysis acc- plishments and to advertise interplay and collaboration among the database and data structures examine groups from primary and East eu international locations and the remainder of the realm. The ADBIS meetings offer an inter- tional platform for the presentation of study on database concept, improvement of complex DBMS applied sciences, and their complicated purposes. ADBIS 2010 spans a large region of pursuits, masking all significant elements relating to concept and purposes of database expertise and knowledge platforms. di?erent submission strains have been thought of for ADBIS 2010, one in the vintage tune and one other one inside of a different tune agency. ADBIS comprised ?ve tracks: 1. Conceptual Modeling in structures Engineering (CMSE) 2. information Mining and knowledge Extraction (DMIE) three. enterprise procedures in E-Commerce structures (e-commerce) four. own Identi?able details: privateness, Ethics, and safety (PIIPES) 5.
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Extra info for Advances in Databases and Information Systems: 14th East European Conference, ADBIS 2010, Novi Sad, Serbia, September 20-24, 2010. Proceedings
The same predicate is used to state that a set c of measures in p has the same semantics than a set d of measures in q. If knowledge is available about how values of c can be derived from values of d, it can be expressed by two encoding functions f : dom(c) → R and g : dom(d) → R. The semantics of these functions is that, whenever f (c) is asked in a query at p, it can safely be rewritten as g(d) at q. totExamCost > with f (< cost >) = cost g(< totStayCost, totExamCost >) = totStayCost + totExamCost states that measure cost can be derived by summing totStayCost and totExamCost.
1 S. Rizzi Motivating Scenario and Envisioned Architecture Cooperation is seen today by companies as one of the major means for increasing ﬂexibility and innovating so as to survive in today uncertain and changing market. Companies need strategic information about the outer world, for instance about trading partners and related business areas. Indeed, it is estimated that above 80% of waste in inter-company and supply-chain processes is due to a lack of communication between the companies involved.
Users transparently access business information distributed over the network in a pervasive and personalized fashion. Access is secure, depending on the access control and privacy policies adopted by each peer. A typical user interaction in this context is the following. A user formulates an OLAP query q by accessing the local multidimensional schema of her peer, p. She Fig. 1. Envisioned architecture for a collaborative BI network New Frontiers in Business Intelligence: Distribution and Personalization 25 Fig.