MathQL-1

A query language for RDF metadata



  • Implementation
Implementation


The MathQL-1 Suite for HELM is implemented in Caml and is currently available through the HELM CVS repository. The Suite provides the following  software components: 

  1. The basic Caml package for MathQL-1 (mathql) provides a HELM independent Caml representation of queries and query results, plus some general purpose utilities.
  1. The MathQL-1 interpreter (mathql_interpreter) provides the proper search engine and is now HELM independent.
  1. The HELM query generator (mathql_generator) allows to build specific kinds of MathQL-1 queries, which are meaningful in the context of HELM, starting from a high-level description of the wanted results. These queries are described at an abstract level in the following paper:
  • F. Guidi and C. Sacerdoti Coen: Querying Distributed Digital Libraries of Mathematics. In Proc. of the 11th Symposium on the Integration of Symbolic Computation and Mechanized Reasoning (Calculemus 2003). Rome, Italy, September 2003. pages 17-30, Aracne. 2003.
  1. The testing software for the MathQL-1 Suite (mathql_test) provides three textual interfaces (one for the basic package, one for the interpreter and one for the query generator) with specific features meant for testing.
The current version of the Suite, realized entirely by F. Guidi, implements MathQL-1 version 3 (i.e. MathQL-1.3). The newly implemented features, which are not included in the official documentation yet, are reported in the What's new section.

The latest HELM query engine (enter here if you are behind a restrictive firewall), powered by MathQL-1.3, allows to issue both user-defined queries and the specific queries produced by the HELM query generator.