A data dictionary system with a query compiler is implemented in a symbol manipulation language, separate from the underlying database system. The query compiler (or program generator) generates COBOL programs for database access. These programs are optimized at generation time using information from the data dictionary. The implementation technique makes it possible to combine pilot implementa...

This paper presents the results of our team in the Genomics and Blog tracks in TREC 2007. We used the language model implementation provided by Indri for both tracks. For the BLOG track we explored the use of adjectives with in a post as a way to predict opinion polarity. Our work in the Genomics track explores two approaches to generate queries from the original topics. The first approach perf...

We study the data transformation capabilities associated with schemas that are presented by labeled directed multi-graphs and path equivalence constraints. Unlike most approaches which treat graph-based schemas as abbreviations for relational schemas, we treat graph-based schemas as categories. A morphism M between schemas S and T , which can be generated from a visual mapping between graphs, i...

For many linguistic investigations, the first step is to find examples. In the 21st century, they should all be found, not invented. Thus linguists need flexible tools for finding even quite rare phenomena. To support linguists well, they need to be fast even where corpora are very large and queries are complex. We present extensions to the CQL ’Corpus Query Language’ for intuitive creation of ...

The fact that GML is an XML encoding allows it to be queried. In order to query a GML document we have designed a query language over GML/XML enriched with spatial operators. This query language has an underlying data model and algebra that supplies the semantics of the query language. In this paper, we propose an approach for integrating Geospatial data on the Web, stored in GML documents, usi...

Temporal databases and query languages have been a subject of research for more than 30 years and are a natural fit for expressing queries that involve a temporal dimension. This paper makes an argument for an event query language that incorporates temporal relational operators to provide a higher degree of expressivity for event queries. The proposed event query language is based on relational...