Fujitsu Corporation

Yukari Hakamata

Masahiro Kataoka

Junki Hakamata

Ryosuke Hyogo

Toshihiro Nishimura

Kota Natsume

Tomoyoshi Ohsawa

A non-transitory computer-readable recording medium recording an indexed data generation program causing a computer to execute processing of generating ledger sheet output format data from ledger sheet data including a ledger sheet having a plurality of columns; generating index information for words, characters, or numerical values, the index information including positional information capable of specifying attributes of the plurality of columns and a positional relationship in the ledger sheet data between pieces of data corresponding to the plurality of columns included in the ledger sheet output format data; and outputting an output file including the index information and the ledger sheet output format data.

Recording medium recording indexed data generation program, indexed data generation method and retrieval method

A search apparatus encodes a plurality of elements, each of which is a unit of encoding, stored in a plurality of items, in a file that includes a plurality of records each including the plurality of items separated by delimiters, with use of an encoding dictionary indicating corresponding relationships between the elements and codes. Further, the search apparatus generates an index that associates the elements with positions of the respective elements in the file. Then, the search apparatus generates mask information indicating a range of a specific search target item among the plurality of items, in the file. The search apparatus searches for one or more element strings satisfying a search condition, from among search target elements that are indicated by the index as being within the range of the search target item indicated in the mask information, based on the search condition.

Search method and search apparatus

A non-transitory computer-readable storage medium storing a program to execute a process including acquiring a first data file including a plurality of first records each having a first data value of a first data item and a second data value of a second data item, generating first association information indicating a correspondence between a plurality of first data values and coded data values, encoding the first data file, encrypting the first association information, obtaining a plurality of data values of the second data item in a second data file, specifying the plurality of first data values, in the plurality of first records, corresponding to the plurality of data values in the second data files, specifying a plurality of coded data values, in the encoded first data file, corresponding to the plurality of specified first data values, and merging the second data file and the plurality of specified coded data values.

Non-transitory computer-readable storage medium, data generating method, and data generating apparatus

An encoding unit encodes at least a part of items of a CSV file including a plurality of records having a plurality of items with a unit of items of respective records. A creation unit creates an encrypted dictionary in which an encoded dictionary having been used for the encoding is encrypted with a unit of dictionary. A transmission unit sends, according to a request for a part of records included in the data, encoded data including the encoded part of records and the encrypted dictionary to a requesting source. A requesting unit requests a part of records included in the CSV file. A decryption unit decrypts the encoded data received according to the request by using the encrypted dictionary.

Encryption system, encryption method and encryption device

An encoding program causes a computer to execute a process of inputting thereto a CSV file having a plurality of records each including a plurality of item which are separated by a delimiter. The encoding program causes the computer to execute a process of generating an encoded file having encoded data and an encoded dictionary each in which a specific item included in the records of the input CSV file is encoded by word or numerical value. The encoding program causes the computer to execute a process of generating an encrypted file including an encrypted dictionary in which the encoded dictionary is encrypted, from the generated encoded file.

Encoding method, encoding device, decoding method and decoding device

An index generating apparatus acquires values corresponding to a plurality of respective attributes of a number that appears in a piece of target text data. The index generating apparatus then maps the values corresponding to the respective attributes to value ranges of the respective attributes. The index generating apparatus then generates a bitmap index indicating bitmap data in which a position at which the number appears is mapped to each of a plurality of value ranges.

Computer-readable recording medium, index generating apparatus, index generating method, computer-readable recording medium, retrieving apparatus, and retrieving method

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Yokohama, Japan

Yukari Hakamata