Abstract: The molecular information providing system of the invention has the terminal units to including molecular structure input/output means, and a molecular information providing apparatus connected via a network to the terminal units and including a database storing a molecular structure, an intermediate representation generated from the molecular structure, and a characteristic decided depending on the molecular structure. The molecular information providing apparatus comprises a coordinate system transforming part for calculating the principal axes of inertia from an atomic arrangement notation specifying the molecular structure, and registering in the database an intermediate representation that is a coordinate transformation of the atomic coordinates into a coordinate system in the directions of the principal axes of inertia, and a retrieval executing part for retrieving the molecular structure stored in the database, employing the intermediate representation.

Abstract: The molecular information providing system of the invention has the terminal units to including molecular structure input/output means, and a molecular information providing apparatus connected via a network to the terminal units and including a database storing a molecular structure, an intermediate representation generated from the molecular structure, and a characteristic decided depending on the molecular structure. The molecular information providing apparatus comprises a coordinate system transforming part for calculating the principal axes of inertia from an atomic arrangement notation specifying the molecular structure, and registering in the database an intermediate representation that is a coordinate transformation of the atomic coordinates into a coordinate system in the directions of the principal axes of inertia, and a retrieval executing part for retrieving the molecular structure stored in the database, employing the intermediate representation.

Abstract: To provide a molecular information providing system that allows the molecular information to be shared by providing high precision information without depending on the format of atomic arrangement notation from a terminal unit. The molecular information providing system of the invention has the terminal units to including molecular structure input/output means, and a molecular information providing apparatus connected via a network to the terminal units and including a database storing a molecular structure, an intermediate representation generated from the molecular structure, and a characteristic decided depending on the molecular structure.

Abstract: To provide a molecular information providing system that allows the molecular information to be shared by providing high precision information without depending on the format of atomic arrangement notation from a terminal unit. The molecular information providing system of the invention has the terminal units to including molecular structure input/output means, and a molecular information providing apparatus connected via a network to the terminal units and including a database storing a molecular structure, an intermediate representation generated from the molecular structure, and a characteristic decided depending on the molecular structure.

Abstract: To provide an information retrieval system, a method for information retrieval, a program for executing the information retrieval, and a storage medium comprising the program for executing the information retrieval The information retrieval system according to the present invention comprises: means for generating and storing a predetermined type matrix from said document-attribute matrix, means for generating said document-attribute submatrix from documents being added to said database during a specific time period, means for updating said predetermined type matrix using knowledge with respect to said document-attribute submatrix and for executing the singular value decomposition on updated said predetermined type matrix to execute dimension reduction of all document-attribute matrices stored within said database, and means for retrieving information with respect to a user input query using said dimension reduced document-attribute matrix.

Abstract: The present invention discloses a method, a computer system, a computer readable medium and a sever. The method of the present invention comprises steps of; creating said document matrix from said documents using at least one attribute; creating a scaled residual matrix based on said document matrix using a predetermined function; executing singular value decomposition to obtain a basis vector corresponding to the largest singular value; re-constructing said residual matrix and scaling dynamically said re-constructed residual matrix to obtain another basis vector; repeating said singular value decomposition step to said re-constructing step to create a predetermined set of basis vector; and executing reduction of said document matrix to perform detection, retrieval and identification of said documents in said database.

Abstract: To provide a molecular information providing system that allows the molecular information to be shared by providing high precision information without depending on the format of atomic arrangement notation from a terminal unit.

Abstract: The present invention discloses a method, a computer system, a computer readable medium and a sever. The method of the present invention comprises steps of; creating said document matrix from said documents using at least one attribute; creating a scaled residual matrix based on said document matrix using a predetermined function; executing singular value decomposition to obtain a basis vector corresponding to the largest singular value; re-constructing said residual matrix and scaling dynamically said re-constructed residual matrix to obtain another basis vector; repeating said singular value decomposition step to said re-constructing step to create a predetermined set of basis vector; and executing reduction of said document matrix to perform detection, retrieval and identification of said documents in said database.

Abstract: A method, a computer system, and a program product for retrieving and/or ranking documents in a database.

Abstract: [Objective] To provide an information retrieval system, a method for information retrieval, a program for executing the information retrieval, and a storage medium comprising the program for executing the information retrieval

Abstract: A method, a computer system, and a program product for retrieving and/or ranking documents in a database.