MOD

We design a novel online analytical processing system for sequence data analysis (the S-OLAP system). The biggest distinction of S-OLAP from traditional OLAP is that a sequence can be characterized not only by the attributes' values of its constituting ...

Explosion of the amount of digital information has made Personal Information Management(PIM) become a hot topic. Personal data is always distributed, rough-and-tumble, personalized, heterogenous and evolutionary, which brings much challenge to to ...

With proliferation of published Web services, the task of finding relevant ones for the developers of service oriented application becomes more and more difficult. Several existing tools or mechanisms allow this discovery; however, those approaches ...

Blogging becomes a popular way for a Web user to publish information on the Web. Bloggers write blog posts, share likes and dislikes, voice opinions, provide suggestions, and report news. In this work we study influential bloggers in both community as ...

Both relational databases and logic programs adopt some form of nonmonotonic reasoning in order to infer negative information. Relational databases adopt the Closed World Assumption (CWA) of Reiter. It can be easily seen that much greater expressivity ...

Data represent today a valuable asset for companies and organizations and must be protected. Most of an organization's sensitive and proprietary data resides in a Database Management System (DBMS). The focus of this thesis is to develop advanced ...

We present efficient protocols for the 1-out-of-n single-server Computationally-Private Information Retrieval (CPIR) problem for l-bit strings. In particular, our results achieve simultaneously polylogarithmic extra storage, communication, and Client ...