Large search engines process thousands of queries per second over billions of documents, making query processing a major performance bottleneck. An important class of optimization...
Abstract. "Why does the build fail currently?" - This and similar questions arise on a daily basis in software development processes (SDP). There is no easy way to answer...
Iceberg queries are a special case of SQL queries involving GROUP BY and HAVING clauses, wherein the answer set is small relative to the database size. We present here a performanc...
Krishna P. Leela, Pankaj M. Tolani, Jayant R. Hari...
User queries to search engines are observed to predominantly contain inflected content words but lack stopwords and capitalization. Thus, they often resemble natural language que...
BPQL is a novel query language for querying business process specifications, introduced recently in [5, 6]. It is based on an intuitive business processes as rewriting systems, an...