Abstract: A method, system and computer program product implementing the method are provided to process a text search query in a collection of documents. A full posting index is generated for the documents in the collection. The full posting index comprises one or more first index terms and a full posting list for each first index term, enumerating the occurrences of the first index term in the documents. In addition to the full posting index, at least one additional posting index is generated for the documents. The additional posting index is related to a defined document part and comprises one or more second index terms and a restricted posting list for each second index term, enumerating all occurrences of the second index term in the document part of the documents of the collection. The text search query is performed using the additional posting index.

Abstract: According to the present invention a method and an infrastructure are provided for processing a text search query in a collection of documents (100). Therefore, a full posting index (200) is generated, stored and updated for each document added to the collection (100). Said full posting index (200) comprising a set of index terms and a full posting list for each index term of said set, enumerating all occurrences of said index term in all documents of the collection (100). In addition to said full posting index (200) at least one additional posting index (400, 500, 600) is generated, stored and updated for each document added to the collection (100). Said additional posting index (400, 500, 600) is related to a defined document part and comprises a set of index terms and a restricted posting list for each index term of said set, enumerating all occurrences of said index term in said document part of all documents of the collection (100).

Abstract: A method, system and computer program product implementing the method are provided to process a text search query in a collection of documents. A full posting index is generated for the documents in the collection. The full posting index comprises one or more first index terms and a full posting list for each first index term, enumerating the occurrences of the first index term in the documents. In addition to the full posting index, at least one additional posting index is generated for the documents. The additional posting index is related to a defined document part and comprises one or more second index terms and a restricted posting list for each second index term, enumerating all occurrences of the second index term in the document part of the documents of the collection. The text search query is performed using the additional posting index.

Abstract: Techniques are provided for electronic Information Retrieval (IR) applied for an electronic search in a search environment. At indexing time, a searched document is mapped to at least one element of an organizational structure of an enterprise associated with the search environment. At query time, a querying user is associated with at least one element of the organizational structure of the enterprise. The organizational information of the searched document and that of the querying user are compared. A higher rank is provided to the searched document when the searched document has a closer organizational relation to the querying user compared to other searched documents with a less close relation to the querying user based on the compared organizational information.

Abstract: A method, system and computer program product implementing the method are provided to process a text search query in a collection of documents. A full posting index is generated for the documents in the collection. The full posting index comprises one or more first index terms and a full posting list for each first index term, enumerating the occurrences of the first index term in the documents. In addition to the full posting index, at least one additional posting index is generated for the documents. The additional posting index is related to a defined document part and comprises one or more second index terms and a restricted posting list for each second index term, enumerating all occurrences of the second index term in the document part of the documents of the collection. The text search query is performed using the additional posting index.