M. G. J. van den Brand, H. A. de Jong, P. Klint, and P. A. Olivier. Efficient Annotated Terms. Software - Practice & Experience, 30:259-291, 2000.

Abstract

How do distributed applications exchange tree-like data structures? We introduce the abstract data type of Annotated Terms (ATerms) and discuss their design, implementation and application. A comprehensive procedural interface enables creation and manipulation of ATerms in C or Java. The ATerm implementation is based on maximal subterm sharing and automatic garbage collection. A binary exchange format for the concise representation of ATerms (sharing preserved) allows the fast exchange of ATerms between applications. In a typical application--parse trees which contain considerable redundant information--less than 2 bytes are needed to represent a node in memory, and less than 2 bits are needed to represent it in binary format. The implementation of ATerms scales up to the manipulation of ATerms in the giga-byte range.

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Revision: r1.3 - 29 Apr 2002 - 07:43 - EelcoVisser
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