evel of abstraction, we can represent a workflow as a directed graph with operators (or tasks) at the vertices (see Figure 1). Each operator takes inputs from data sources or from ...
Analyzing and controlling large distributed services under a wide range of conditions is difficult. Yet these capabilities are essential to a number of important development and o...
David L. Oppenheimer, Vitaliy Vatkovskiy, Hakim We...
This paper describes the design and implementation of SWORD, a scalable resource discovery service for widearea distributed systems. In contrast to previous systems, SWORD allows ...
David L. Oppenheimer, Jeannie R. Albrecht, David A...
Conventional OLTP systems assign each transaction to a worker thread and that thread accesses data, depending on what the transaction dictates. This thread-to-transaction work ass...
This paper presents SPEX, a streamed and progressive evaluation of regular path expressions with XPath-like qualifiers against XML streams. SPEX proceeds as follows. An expression...