ABNORMALITY DETECTION APPARATUS, ABNORMALITY DETECTION METHOD, AND COMPUTER PROGRAM
To improve accuracy in detection of abnormality of newly acquired data by using a variable data group excluding pretended correlation between the variable data groups if there exists a variable data group having a unit root.SOLUTION: An abnormality detection apparatus according to the present invent...
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| creator | NORITAKE SHIGETOSHI YUNOKI TAKAHIRO YOGO YASUHIRO WADA KENSUKE MIYAZAKI IZURU IWATA TAKAMICHI |
| description | To improve accuracy in detection of abnormality of newly acquired data by using a variable data group excluding pretended correlation between the variable data groups if there exists a variable data group having a unit root.SOLUTION: An abnormality detection apparatus according to the present invention has a data acquiring unit for acquiring a data set including a variable data group for a plurality of variables which is a variable data group that is a group of a plurality of data for a predetermined variable, a data processing unit for calculating a correlation coefficient for a plurality of variable data groups, and a determining unit for determining abnormality of data depending on a newly acquired variable using the correlation coefficient. The data processing unit, when there is a unit root in at least one of the plurality of variable data groups, carries out preprocessing for the variable data group having a unit root before calculation of the correlation coefficient.SELECTED DRAWING: Figure 1
【課題】単位根が存在する変数データ群が存在する場合に、変数データ群間の見せかけの相関を排除した変数データ群を用いて、新たに取得されるデータの異常検出の精度を向上させる。【解決手段】異常検出装置は、所定の変数についての複数のデータの集合である変数データ群であって、複数の変数についての変数データ群を含むデータセットを取得するデータ取得部と、複数の変数データ群間における相関係数を算出するデータ処理部と、相関係数を用いて、新たに取得された変数に依存するデータの異常判定を行う判定部と、を備え、データ処理部は、複数の変数データ群の内の少なくとも１つに単位根が存在する場合に、相関係数の算出に先立ち、少なくとも単位根が存在する変数データ群に対して前処理を行う。【選択図】図１ |
| format | Patent |
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【課題】単位根が存在する変数データ群が存在する場合に、変数データ群間の見せかけの相関を排除した変数データ群を用いて、新たに取得されるデータの異常検出の精度を向上させる。【解決手段】異常検出装置は、所定の変数についての複数のデータの集合である変数データ群であって、複数の変数についての変数データ群を含むデータセットを取得するデータ取得部と、複数の変数データ群間における相関係数を算出するデータ処理部と、相関係数を用いて、新たに取得された変数に依存するデータの異常判定を行う判定部と、を備え、データ処理部は、複数の変数データ群の内の少なくとも１つに単位根が存在する場合に、相関係数の算出に先立ち、少なくとも単位根が存在する変数データ群に対して前処理を行う。【選択図】図１</description><language>eng ; jpn</language><subject>CALCULATING ; COMPUTING ; CONTROL OR REGULATING SYSTEMS IN GENERAL ; CONTROLLING ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS ; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS ; PHYSICS ; REGULATING</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201105&DB=EPODOC&CC=JP&NR=2020181443A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201105&DB=EPODOC&CC=JP&NR=2020181443A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NORITAKE SHIGETOSHI</creatorcontrib><creatorcontrib>YUNOKI TAKAHIRO</creatorcontrib><creatorcontrib>YOGO YASUHIRO</creatorcontrib><creatorcontrib>WADA KENSUKE</creatorcontrib><creatorcontrib>MIYAZAKI IZURU</creatorcontrib><creatorcontrib>IWATA TAKAMICHI</creatorcontrib><title>ABNORMALITY DETECTION APPARATUS, ABNORMALITY DETECTION METHOD, AND COMPUTER PROGRAM</title><description>To improve accuracy in detection of abnormality of newly acquired data by using a variable data group excluding pretended correlation between the variable data groups if there exists a variable data group having a unit root.SOLUTION: An abnormality detection apparatus according to the present invention has a data acquiring unit for acquiring a data set including a variable data group for a plurality of variables which is a variable data group that is a group of a plurality of data for a predetermined variable, a data processing unit for calculating a correlation coefficient for a plurality of variable data groups, and a determining unit for determining abnormality of data depending on a newly acquired variable using the correlation coefficient. The data processing unit, when there is a unit root in at least one of the plurality of variable data groups, carries out preprocessing for the variable data group having a unit root before calculation of the correlation coefficient.SELECTED DRAWING: Figure 1
【課題】単位根が存在する変数データ群が存在する場合に、変数データ群間の見せかけの相関を排除した変数データ群を用いて、新たに取得されるデータの異常検出の精度を向上させる。【解決手段】異常検出装置は、所定の変数についての複数のデータの集合である変数データ群であって、複数の変数についての変数データ群を含むデータセットを取得するデータ取得部と、複数の変数データ群間における相関係数を算出するデータ処理部と、相関係数を用いて、新たに取得された変数に依存するデータの異常判定を行う判定部と、を備え、データ処理部は、複数の変数データ群の内の少なくとも１つに単位根が存在する場合に、相関係数の算出に先立ち、少なくとも単位根が存在する変数データ群に対して前処理を行う。【選択図】図１</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>CONTROL OR REGULATING SYSTEMS IN GENERAL</subject><subject>CONTROLLING</subject><subject>COUNTING</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</subject><subject>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</subject><subject>PHYSICS</subject><subject>REGULATING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAh2dPLzD_J19PEMiVRwcQ1xdQ7x9PdTcAwIcAxyDAkN1lHArsDXNcTD3wUo6-ei4OzvGxAa4hqkEBDk7x7k6MvDwJqWmFOcyguluRmU3FxDnD10Uwvy41OLCxKTU_NSS-K9AowMjAwMLQxNTIwdjYlSBACFoDCG</recordid><startdate>20201105</startdate><enddate>20201105</enddate><creator>NORITAKE SHIGETOSHI</creator><creator>YUNOKI TAKAHIRO</creator><creator>YOGO YASUHIRO</creator><creator>WADA KENSUKE</creator><creator>MIYAZAKI IZURU</creator><creator>IWATA TAKAMICHI</creator><scope>EVB</scope></search><sort><creationdate>20201105</creationdate><title>ABNORMALITY DETECTION APPARATUS, ABNORMALITY DETECTION METHOD, AND COMPUTER PROGRAM</title><author>NORITAKE SHIGETOSHI ; YUNOKI TAKAHIRO ; YOGO YASUHIRO ; WADA KENSUKE ; MIYAZAKI IZURU ; IWATA TAKAMICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2020181443A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2020</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>CONTROL OR REGULATING SYSTEMS IN GENERAL</topic><topic>CONTROLLING</topic><topic>COUNTING</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</topic><topic>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</topic><topic>PHYSICS</topic><topic>REGULATING</topic><toplevel>online_resources</toplevel><creatorcontrib>NORITAKE SHIGETOSHI</creatorcontrib><creatorcontrib>YUNOKI TAKAHIRO</creatorcontrib><creatorcontrib>YOGO YASUHIRO</creatorcontrib><creatorcontrib>WADA KENSUKE</creatorcontrib><creatorcontrib>MIYAZAKI IZURU</creatorcontrib><creatorcontrib>IWATA TAKAMICHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NORITAKE SHIGETOSHI</au><au>YUNOKI TAKAHIRO</au><au>YOGO YASUHIRO</au><au>WADA KENSUKE</au><au>MIYAZAKI IZURU</au><au>IWATA TAKAMICHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ABNORMALITY DETECTION APPARATUS, ABNORMALITY DETECTION METHOD, AND COMPUTER PROGRAM</title><date>2020-11-05</date><risdate>2020</risdate><abstract>To improve accuracy in detection of abnormality of newly acquired data by using a variable data group excluding pretended correlation between the variable data groups if there exists a variable data group having a unit root.SOLUTION: An abnormality detection apparatus according to the present invention has a data acquiring unit for acquiring a data set including a variable data group for a plurality of variables which is a variable data group that is a group of a plurality of data for a predetermined variable, a data processing unit for calculating a correlation coefficient for a plurality of variable data groups, and a determining unit for determining abnormality of data depending on a newly acquired variable using the correlation coefficient. The data processing unit, when there is a unit root in at least one of the plurality of variable data groups, carries out preprocessing for the variable data group having a unit root before calculation of the correlation coefficient.SELECTED DRAWING: Figure 1
【課題】単位根が存在する変数データ群が存在する場合に、変数データ群間の見せかけの相関を排除した変数データ群を用いて、新たに取得されるデータの異常検出の精度を向上させる。【解決手段】異常検出装置は、所定の変数についての複数のデータの集合である変数データ群であって、複数の変数についての変数データ群を含むデータセットを取得するデータ取得部と、複数の変数データ群間における相関係数を算出するデータ処理部と、相関係数を用いて、新たに取得された変数に依存するデータの異常判定を行う判定部と、を備え、データ処理部は、複数の変数データ群の内の少なくとも１つに単位根が存在する場合に、相関係数の算出に先立ち、少なくとも単位根が存在する変数データ群に対して前処理を行う。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING COUNTING ELECTRIC DIGITAL DATA PROCESSING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING |
| title | ABNORMALITY DETECTION APPARATUS, ABNORMALITY DETECTION METHOD, AND COMPUTER PROGRAM |
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