Abstract: Disclosed are systems, methods, and machine readable storage media that cause a storage computer and a client computer to perform a method of providing access to one or more resources on the storage computer for the client computer. The storage computer is operable for initiation of a network connection between the client computer and the storage computer. Initiation of the network connection between the client computer and the storage computer by the storage computer is enabled, and initiation of the network connection between the client computer and the storage computer by the client computer is disabled. The client computer and the storage computer are operable for maintaining the network connection between the client computer and the storage computer.

Abstract: A computer-implemented method, system, and/or computer program product optimizes an order of execution of column join operations. A first partitioning of the first data column splits the first data column into first subsets of rows. A second partitioning of the second data column splits the second data column into a second subsets of rows. Cardinalities of sub-tables derived by a respective joining of the subsets of rows of the first and second data columns are estimated, based on the first and second value frequency information. An order of execution of multiple join operations is then optimized based on the estimated cardinalities of the sub-tables.

Abstract: Disclosed are systems, methods, and machine readable storage media that cause a storage computer and a client computer to perform a method of providing access to one or more resources on the storage computer for the client computer. The storage computer is operable for initiation of a network connection between the client computer and the storage computer. Initiation of the network connection between the client computer and the storage computer by the storage computer is enabled, and initiation of the network connection between the client computer and the storage computer by the client computer is disabled. The client computer and the storage computer are operable for maintaining the network connection between the client computer and the storage computer.

Abstract: Disclosed are systems, methods, and machine readable storage media that cause a storage computer and a client computer to perform a method of providing access to one or more resources on the storage computer for the client computer. The storage computer is operable for initiation of a network connection between the client computer and the storage computer. Initiation of the network connection between the client computer and the storage computer by the storage computer is enabled, and initiation of the network connection between the client computer and the storage computer by the client computer is disabled. The client computer and the storage computer are operable for maintaining the network connection between the client computer and the storage computer.

Abstract: A computer-implemented method, system, and/or computer program product optimizes an order of execution of column join operations. A first partitioning of the first data column splits the first data column into first subsets of rows. A second partitioning of the second data column splits the second data column into a second subsets of rows. Cardinalities of sub-tables derived by a respective joining of the subsets of rows of the first and second data columns are estimated, based on the first and second value frequency information. An order of execution of multiple join operations is then optimized based on the estimated cardinalities of the sub-tables.

Abstract: A computer-implemented method, system, and/or computer program product optimizes an order of execution of column join operations. A first partitioning of the first data column splits the first data column into first subsets of rows. A second partitioning of the second data column splits the second data column into a second subsets of rows. A first value frequency information indicates a frequency of attribute values within a subset of rows of the first data column processed. A second value frequency information indicates a frequency of attribute values within a subset of rows of the second data column. Cardinalities of sub-tables derived by a respective joining of the subsets of rows of the first and second data columns are estimated, based on the first and second value frequency information. An order of execution of multiple join operations is then optimized based on the estimated cardinalities of the sub-tables.

Abstract: Disclosed are systems, methods, and machine readable storage media that cause a storage computer and a client computer to perform a method of providing access to one or more resources on the storage computer for the client computer. The storage computer is operable for initiation of a network connection between the client computer and the storage computer. Initiation of the network connection between the client computer and the storage computer by the storage computer is enabled, and initiation of the network connection between the client computer and the storage computer by the client computer is disabled. The client computer and the storage computer are operable for maintaining the network connection between the client computer and the storage computer.

Abstract: A method, system and computer program product for developing a semantic network are disclosed. The system includes a server and a client computer, and the method involves: creating a semantic network containing at least one root concept; performing a set of instructions associated with the semantic network, the set of instructions comprising: transmitting information about the semantic network from the client computer to a server; providing information about at least one resource to the server, the at least one resource containing concepts and relations associated with the at least one root concept; receiving information about a modified semantic network from the server; presenting the information about the modified semantic network to a user; receiving a response from the user; based on the response, further modifying the semantic network. The system interactively modifies semantic networks in response to user feedback, and produces personal semantic networks and document use histories.

Abstract: A computer-implemented method, system, and/or computer program product optimizes an order of execution of column join operations. A first partitioning of the first data column splits the first data column into first subsets of rows. A second partitioning of the second data column splits the second data column into a second subsets of rows. A first value frequency information indicates a frequency of attribute values within a subset of rows of the first data column processed. A second value frequency information indicates a frequency of attribute values within a subset of rows of the second data column. Cardinalities of sub-tables derived by a respective joining of the subsets of rows of the first and second data columns are estimated, based on the first and second value frequency information. An order of execution of multiple join operations is then optimized based on the estimated cardinalities of the sub-tables.

Abstract: A method, system and computer program product for developing a semantic network are disclosed. The system includes a server and a client computer, and the method involves: creating a semantic network containing at least one root concept; performing a set of instructions associated with the semantic network, the set of instructions comprising: transmitting information about the semantic network from the client computer to a server; providing information about at least one resource to the server, the at least one resource containing concepts and relations associated with the at least one root concept; receiving information about a modified semantic network from the server; presenting the information about the modified semantic network to a user; receiving a response from the user; based on the response, further modifying the semantic network. The system interactively modifies semantic networks in response to user feedback, and produces personal semantic networks and document use histories.

Abstract: A method, system and computer program product for generating a document representation are disclosed. The system includes a server and a client computer, and the method involves: receiving into memory a resource containing at least one sentence of text; producing a tree comprising tree elements indicating parts-of-speech and grammatical relations between the tree elements; producing semantic structures each having three tree elements to represent a simple clause (subject-predicate-object); and storing a semantic network of semantic structures and connections therebetween. The semantic network may be created from a user provided root concept. Output representations include concept maps, facts listings, text summaries, tag clouds, indices; and an annotated text. The system interactively modifies semantic networks in response to user feedback, and produces personal semantic networks and document use histories.

Abstract: A method, system and computer program product for generating a document representation are disclosed. The system includes a server and a client computer, and the method involves: receiving into memory a resource containing at least one sentence of text; producing a tree comprising tree elements indicating parts-of-speech and grammatical relations between the tree elements; producing semantic structures each having three tree elements to represent a simple clause (subject-predicate-object); and storing a semantic network of semantic structures and connections therebetween. The semantic network may be created from a user provided root concept. Output representations include concept maps, facts listings, text summaries, tag clouds, indices; and an annotated text. The system interactively modifies semantic networks in response to user feedback, and produces personal semantic networks and document use histories.