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    • 2. 发明专利
    • DATA ANALYSIS SUPPORT SYSTEM
    • JPH08161287A
    • 1996-06-21
    • JP30585294
    • 1994-12-09
    • HITACHI LTD
    • KAWASHIMA KAZUHIROTANIGUCHI YOJIMASUDA KAZUYOSHIHAMAGUCHI TSUYOSHIISHIBASHI AKINORI
    • G06F19/00G06F17/00G06F17/30G06Q40/00G06Q40/02G06Q50/00
    • PURPOSE: To shorten the working time for a data analysis by squeezing down many items of a data base on an analysis item, selecting a rule for analysis to be used for an analysis and outputting the rule. CONSTITUTION: An analysis item convergence part 112 calculates the dispersion and correlation coefficient of inputted object data and displays them through the screen of an analysis item selection part 131. A rule generation part 113 combines conditions in the range of a maximum condition number and performs a calculation by defining the rate of 'reactive' data contained in the data compatible to a rule as density. A rule evaluation part 114 performs the calculation by defining the rate of 'reactive' data compatible to the rules in a rule output order as a cumulative covering ratio and displays the transition graphs of the cumulative convering ratio and the density on the screen of a rule selection part 133. When the display range of the rule is inputted, the discrimination ratio of each condition of the rules, the predictive values of the density by the integrated value of the discrimination ratio of each condition are comapred, the rule in which the integrated value is large is emphatically displayed and the conditions are displayed in the higher discrimination ratio order of each condition.
    • 3. 发明专利
    • EXAMINATION JOB SUPPORT SYSTEM
    • JPH08147381A
    • 1996-06-07
    • JP28330794
    • 1994-11-17
    • HITACHI LTD
    • KAWASHIMA KAZUHIROFUJII SHIGEHARUHAMAGUCHI TSUYOSHITANAKA ATSUSHISAKASHITA MASAHIRO
    • G06F17/30G06F19/00G06Q10/10G06Q40/00G06Q40/02G06Q50/00G06F17/60
    • PURPOSE: To enable exact examinations and approvals by displaying update information from the preparation of a document to examination and approval and checking the update information by examiners and approvers. CONSTITUTION: As for a financing process of obtaining the sanction to a plan by circulating the draft prepared by a person in charge job, a document preparing person refers to the information required for the preparation of a document from a data base system 101 on a computer 111 at first, prepares the process document and stores it in a document data base 105. An examiner examines the contents of the process document on a computer 121. If the examination result is a 'rejection', the document is returned to its original state. If the result is 'OK', an approver inputs the examined process document on a computer 131 and approves the contents of the process document. The history information on only the information referred to at the time of preparing the process document is stored in an update history data base 104. Thus, because the data quantity of the update history data base 104 is reduced as compared with the case where all the update information is stored in the update history data base, the retrieval time for update information is shortened, response time is shortened and the working efficiency of examination and approval works is improved.
    • 4. 发明专利
    • DISTRIBUTED CONTROL METHOD OF PROCESS
    • JPH07191703A
    • 1995-07-28
    • JP33050893
    • 1993-12-27
    • HITACHI LTD
    • SEKOZAWA TERUJIKAWASHIMA KAZUHIROKURISU HIROMITSU
    • G05B13/02
    • PURPOSE:To improve control characteristic by preventing the deterioration of identification precesion even when a signal is made into a fixed value and excitation becomes unsatisfactory at an identification part in the adaptive control of a distributed controller. CONSTITUTION:The dimension of an estimated parameter is reduced or magnified corresponding to the strength of the excitation of the signal and at the dimension magnified or reduced, the estimated parameter is operated. An adaptive gain is calculated (121) from an input/output signal to a plant 11 to estimate excitation to decide (122) the dimension of the estimated parameter so as to estimate (123) the parameter of the decided dimension. The parameter of a control system is W (13) from the estimated parameter so as to execute control (143). Concerning the decision (122) of the dimension of the parameter, when the trace value of the adaptive gain is magnified, an estimated dimension is reduced bat when the trace value is reduced, the estimated dimension is magnified.
    • 6. 发明专利
    • DATA ANALYSIS METHOD
    • JPH08272825A
    • 1996-10-18
    • JP10002795
    • 1995-03-31
    • HITACHI LTD
    • TANIGUCHI YOJIKAWASHIMA KAZUHIROISHIBASHI AKINORIYAJIMA TAKASHI
    • G06F9/44G06F17/30G06N5/04
    • PURPOSE: To provide a data analysis method capable of classifying plural rules generated by the instruction of a user from the data of a data base into the highly common rule groups of suitable data. CONSTITUTION: The rules for extracting the appearing area of a record provided with a predetermined feature from the records of the data base are generated and displayed for number given by the instruction of a user together with the adaptation of the rules in a rule form composed of a condition part provided with more than one record items and a conclusion part provided with one record item based on the instruction of the user (11). The degree of the similarity of the rule between the specified rule specified by the user and the other rules is obtained (20), the specified rule and the other rule provided with the degree of the similarity of the rule higher than the lowest degree of the similarity are displayed in a pair and registered based on the instruction of the user (30). Further, the rule is selected from the registered rules or a new rule is generated, the degree of the similarity between the respective pairs of the rules in the rules is obtained and displayed and the inclusion relation of a pair of the rules specified by the user is obtained and displayed (40).