Abstract: A computer processor may extract identity information from a document. The identity information may include at least one custodian identity attribute. After extracting the identity information, the computer processor may determine that the identity information is associated with a specific custodian. The computer processor may then search for the custodian identity attribute in a custodian directory to determine whether the custodian directory contains an entry for the custodian. If the custodian is not in the custodian directory, the computer processor may create a new entry in the custodian directory for the custodian and store the extracted identity information in the new entry.

Abstract: A computer processor may extract identity information from a document. The identity information may include at least one custodian identity attribute. After extracting the identity information, the computer processor may determine that the identity information is associated with a specific custodian. The computer processor may then search for the custodian identity attribute in a custodian directory to determine whether the custodian directory contains an entry for the custodian. If the custodian is not in the custodian directory, the computer processor may create a new entry in the custodian directory for the custodian and store the extracted identity information in the new entry.

Abstract: Providing an encrypted search index for performing searches on encrypted documents, the method comprising: (i) providing a set of documents, the documents comprising a plurality of unencrypted phrases; (ii) providing a master key; (iii) providing, based on the master key, for each phrase a set of encryption keys comprising one or more encryption keys; (iv) selecting, for each phrase, one encryption key of the set of encryption keys; (v) encrypting each phrase with the selected encryption key; and (vi) building an index based on the encrypted phrases, the index comprising information regarding which encrypted phrase is comprised within a certain document.

Abstract: A computer processor may extract identity information from a document. The identity information may include at least one custodian identity attribute. After extracting the identity information, the computer processor may determine that the identity information is associated with a specific custodian. The computer processor may then search for the custodian identity attribute in a custodian directory to determine whether the custodian directory contains an entry for the custodian. If the custodian is not in the custodian directory, the computer processor may create a new entry in the custodian directory for the custodian and store the extracted identity information in the new entry.

Abstract: A computer processor may extract identity information from a document. The identity information may include at least one custodian identity attribute. After extracting the identity information, the computer processor may determine that the identity information is associated with a specific custodian. The computer processor may then search for the custodian identity attribute in a custodian directory to determine whether the custodian directory contains an entry for the custodian. If the custodian is not in the custodian directory, the computer processor may create a new entry in the custodian directory for the custodian and store the extracted identity information in the new entry.

Abstract: A computer-implemented method, carried out by one or more processors, for consolidating an index entry of a dictionary. In an embodiment, the method comprises the steps of receiving, by one or more processors, a set of parameters, wherein the set of parameters indicates at least a length of prefix and a length of hash value; receiving, by one or more processors, a first term for entry into an index; converting, by one or more processors, the first term for entry into the index according to the set of parameters; and responsive to determining the converted first term is not present in the index, storing, by one or more processors, the first converted term into the index.

Abstract: A computer-implemented method, carried out by one or more processors, for consolidating an index entry of a dictionary. In an embodiment, the method comprises the steps of receiving, by one or more processors, a set of parameters, wherein the set of parameters indicates at least a length of prefix and a length of hash value; receiving, by one or more processors, a first term for entry into an index; converting, by one or more processors, the first term for entry into the index according to the set of parameters; and responsive to determining the converted first term is not present in the index, storing, by one or more processors, the first converted term into the index.

Abstract: Providing an encrypted search index for performing searches on encrypted documents, the method comprising: (i) providing a set of documents, the documents comprising a plurality of unencrypted phrases; (ii) providing a master key; (iii) providing, based on the master key, for each phrase a set of encryption keys comprising one or more encryption keys; (iv) selecting, for each phrase, one encryption key of the set of encryption keys; (v) encrypting each phrase with the selected encryption key; and (vi) building an index based on the encrypted phrases, the index comprising information regarding which encrypted phrase is comprised within a certain document.

Abstract: Providing an encrypted search index for performing searches on encrypted documents, the method comprising: (i) providing a set of documents, the documents comprising a plurality of unencrypted phrases; (ii) providing a master key; (iii) providing, based on the master key, for each phrase a set of encryption keys comprising one or more encryption keys; (iv) selecting, for each phrase, one encryption key of the set of encryption keys; (v) encrypting each phrase with the selected encryption key; and (vi) building an index based on the encrypted phrases, the index comprising information regarding which encrypted phrase is comprised within a certain document.

Abstract: Providing an encrypted search index for performing searches on encrypted documents, the method comprising: (i) providing a set of documents, the documents comprising a plurality of unencrypted phrases; (ii) providing a master key; (iii) providing, based on the master key, for each phrase a set of encryption keys comprising one or more encryption keys; (iv) selecting, for each phrase, one encryption key of the set of encryption keys; (v) encrypting each phrase with the selected encryption key; and (vi) building an index based on the encrypted phrases, the index comprising information regarding which encrypted phrase is comprised within a certain document.

Abstract: A computer processor may extract identity information from a document. The identity information may include at least one custodian identity attribute. After extracting the identity information, the computer processor may determine that the identity information is associated with a specific custodian. The computer processor may then search for the custodian identity attribute in a custodian directory to determine whether the custodian directory contains an entry for the custodian. If the custodian is not in the custodian directory, the computer processor may create a new entry in the custodian directory for the custodian and store the extracted identity information in the new entry.

Abstract: A computer processor may extract identity information from a document. The identity information may include at least one custodian identity attribute. After extracting the identity information, the computer processor may determine that the identity information is associated with a specific custodian. The computer processor may then search for the custodian identity attribute in a custodian directory to determine whether the custodian directory contains an entry for the custodian. If the custodian is not in the custodian directory, the computer processor may create a new entry in the custodian directory for the custodian and store the extracted identity information in the new entry.

Abstract: A computer-implemented method, carried out by one or more processors, for consolidating an index entry of a dictionary. In an embodiment, the method comprises the steps of receiving, by one or more processors, a set of parameters, wherein the set of parameters indicates at least a length of prefix and a length of hash value; receiving, by one or more processors, a first term for entry into an index; converting, by one or more processors, the first term for entry into the index according to the set of parameters; and responsive to determining the converted first term is not present in the index, storing, by one or more processors, the first converted term into the index.

Abstract: A computer-implemented method, carried out by one or more processors, for consolidating an index entry of a dictionary. In an embodiment, the method comprises the steps of receiving, by one or more processors, a set of parameters, wherein the set of parameters indicates at least a length of prefix and a length of hash value; receiving, by one or more processors, a first term for entry into an index; converting, by one or more processors, the first term for entry into the index according to the set of parameters; and responsive to determining the converted first term is not present in the index, storing, by one or more processors, the first converted term into the index.

Abstract: System and computer program product for processing a text search query in a collection of documents. A full posting index is generated that has first index terms and a full posting list for each first index term, enumerating occurrences of the first index terms in the documents of the collection. A text search query includes search conditions search terms. The search conditions are translated into conditions on the first index terms to provide translated conditions. At least one short posting index is generated, which includes second index terms and a short posting list for each second index term, enumerating documents in which the second index terms occur. Filter conditions and complementary conditions are generated to represent the translated conditions. The filter conditions approximate the translated conditions, and are processed using the short posting index. The complementary conditions are processed using the full posting index to provide a query result.

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: System and computer program product for processing a text search query in a collection of documents. A full posting index is generated that has first index terms and a full posting list for each first index term, enumerating occurrences of the first index terms in the documents of the collection. A text search query includes search conditions search terms. The search conditions are translated into conditions on the first index terms to provide translated conditions. At least one short posting index is generated, which includes second index terms and a short posting list for each second index term, enumerating documents in which the second index terms occur. Filter conditions and complementary conditions are generated to represent the translated conditions. The filter conditions approximate the translated conditions, and are processed using the short posting index. The complementary conditions are processed using the full posting index to provide a query result.

Abstract: A method, system, and computer program product are provided for processing a text search query in a collection of documents. A full posting index is generated. The full posting index comprises one or more first index terms and a full posting list for each first index term, enumerating occurrences of the first index term in the documents of the collection. A text search query comprises search conditions on search terms. These search conditions are translated into conditions on the search terms to provide translated conditions. At least one short posting index is generated. The short posting index comprises one or more second index terms and a short posting list for each second index term, enumerating the documents in which the second index term occurs. Filter conditions and complementary conditions to represent the full content of the translated conditions are generated, wherein the filter conditions approximate the translated conditions.

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.