Graph Information Retrieval Language; Programming Manual for FORTRAN Complement
Berkowitz, Sidney · Defense Technical Information Center (DTIC) · 1973
GIRL (Graph Information Retrieval Language) is a programming language designed to conveniently manipulate information in graph structures. As such, the language will plan a key role in the construction of the organizational schemes found, for example, in information retrieval, pattern recognition problems, linguistic analysis, and process scheduling systems. The language is written to complement an algebraic language, in the sense that GIRL statements are distinguished from the statements of the algebraic language and the statements may be interleaved. The primary advantage of separating symbolic and numeric statements is that the programmer is afforded a linear, one-one trace of graph operations in the code description.