SIGMOD

Descriptions of new indexing techniques are a common outcome of database research, but these descriptions are sometimes marred by poor methodology and a lack of comparison to other schemes. In this paper we describe a framework for presentation and ...

In a 'shared-nothing' parallel computer, each processor has its own memory and disks and processors communicate by passing messages through an interconnect. Many academic researchers, and some vendors, assert that shared-nothingness is the 'consensus' ...

Clustering is one of the most effective means to enhance the performance of object base applications. Consequently, many proposals exist for algorithms computing good object placements depending on the application profile. However, in an effective ...

We provide an overview of query processing in parallel database systems and discuss several open issues in the optimization of queries for parallel machines.

In this paper, we present an original and complete methodology for supervising relational query processing in shared nothing systems. A new control mechanism is introduced which allows the detection and the correction of optimizer estimation errors and ...

Active database systems have been a hot research topic for quite some years now. However, while “active functionality” has been claimed for many systems, and notions such as “active objects” or “events” are used in many research areas (even beyond ...

BeSS is a high performance, memory-mapped object storage manager offering distributed transaction management facilities and extensible support for persistence. In this paper, we present an overview of the peer-to-peer architecture of BeSS, and we ...

Middle East Technical University (METU) is the leading technical university in Turkey. The Software Research and Development Center was established by the Scientific and Technical Research Council of Turkey (TUBITAK) at the Department of Computer ...

Object-Relational DBMSs have been receiving a great deal of attention from industry analysts and press as the next generation of database management systems. The motivation for a next generation DBMS is driven by the reality of shortened business ...

Once again, scientists were called upon to take greater role in the political process. And this time, they did! We report on the continuous debate on the nation's R&D policy. We also cover funding opportunities from DoD and NSF.