Designing a compiler of proposed source language Using LEX and BISON

This paper proposes an approach for compiler construction of a proposed source language consisting of all computational and logical operations control statements loops declarations and assignment operations. This study is based on many steps starting from lexical analysis (Scanner) depending on LEX environment; after that, the syntax analysis step is done to obtain the syntax analyzer (Parser) which defines the grammar rules. The final step is compiling the parser using Turbo C++ to get the final output. The designed compiler has been tested on 100 source files, and the results show that the designed program compiles all these source files correctly .In addition it defines the error’s locations through them.

Improving Arabic Information Retrieval Results Semantically Using Ontology

This research proposes a new way to improve the search outcome of Arabic semantics by abstractly summarizing the Arabic texts (Abstractive Summary) using natural language processing algorithms(NLP),Word Sense Disambiguation (WSD) and techniques of measuring Semantic Similarity in Arabic WordNet Ontology.