| Resumen |
A method for indexing and retrieval of textual documents is presented. The method allows for a powerful query language with Boolean and proximity expressions (the latter refers to the possibility to search for two or more keywords within the same paragraph or sentence or within a certain distance from each other). Specifically, the method is designed f or search with generalization (by the query mathematics, to find the documents mentioning function, matrix, theorem, etc.) and to control morphological normalization (let the user decide of the query matrix implies matrices). Another advantage of the method is the possibility to mix textual (keywords) and relational (field values) data in one query. The query language is internally translated into SQL. A system implemented by the authors according to the proposed method is described. Advantages and disa d- vantages of the method as compared with the query enrichment method are discussed. |
