+
+
-
+
-
+
-
+
-
+
-
+
-
- |
-
+
+
+
+ |
+
+
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:
+
+
+ - The basic Caml package for MathQL-1 (mathql)
+ provides a HELM independent Caml
+representation of queries and query results, plus some functions to convert
+this representation in text and XML and viceversa.
+
+
+
+
+ - The MathQL-1 interpreter (mathql_interpreter)
+ is HELM dependent just in the implementation of the property operator,
+ which still relies on the architecture of the relational database holding
+ HELM metadata. The HELM team is planning to remove this drawback in the
+near future.
+
+
+
+
+ - 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.
+
+ will appear as research report of Laboratoire D'Informatique de Paris 6
+
+
+
+
+ - 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.
+
|