{ "data_id": "40705", "name": "tokyo1", "exact_name": "tokyo1", "version": 1, "version_label": null, "description": "**Author**: Ron Kohavi \r\n**Source**: [SGI.com tech archive](http:\/\/www.sgi.com\/tech\/mlc\/db\/) (no longer available, [copy on GitHub](https:\/\/github.com\/acefoxy\/DataScience\/blob\/973d9239ca3190487204ce8037a1d3c8689f95dd\/week2\/www.sgi.com\/tech\/mlc\/db\/tokyo1.names\r\n)), [PMLB](https:\/\/github.com\/EpistasisLab\/penn-ml-benchmarks\/tree\/master\/datasets\/classification\/tokyo1) \r\n**Please cite**: \r\n\r\n**Tokyo SGI Server Performance Data** \r\nThis is Performance co-pilot (PCP) data for the Tokyo server at Silicon Graphics International (SGI). \r\nIt characterizes the server performance as either `good` (1) or `bad` (0).\r\n\r\nThe instances are measurements generated by the PCP software every five seconds. See the [PCP manual](http:\/\/www.irix7.com\/techpubs\/007-2614-001.pdf) for further details.\r\n\r\n### Attribute Information \r\nThe attributes are interpreted as follows: \r\n- runq: Average number of runnable processes in main memory (mem) and in swap memory (swp) during the interval.\r\n- memory: The free column indicates average free memory during the interval, in Kilobytes. The page column is the average number of page out operations per second during the interval. I\/O operations caused by these page-out operations are included in the write I\/O rate.\r\n- system: System call rate (scall), context switch rate (ctxsw) and interrupt rate (intr). Rates are expressed as average operations per second during the interval.\r\n- disks: Aggregated physical read (rd) and write (wr) rates over all disks, expressed as physical I\/O operations issued per second during the interval. These rates are independent of the I\/O block size.\r\n- cpu: Percentage of CPU time spent executing user code (usr), system and interrupt code (sys), idle loop (idl) and idle waiting for resources, typically disk I\/O (wt).\r\n", "format": "ARFF", "uploader": "Pieter Gijsbers", "uploader_id": 869, "visibility": "public", "creator": null, "contributor": null, "date": "2017-04-06 12:38:44", "update_comment": null, "last_update": "2017-04-06 12:38:44", "licence": "public", "status": "active", "error_message": null, "url": "https:\/\/www.openml.org\/data\/download\/4965306\/tokyo1.arff", "default_target_attribute": "class", "row_id_attribute": null, "ignore_attribute": null, "runs": 37, "suggest": { "input": [ "tokyo1", ")), [PMLB](https:\/\/github.com\/EpistasisLab\/penn-ml-benchmarks\/tree\/master\/datasets\/classification\/tokyo1) This is Performance co-pilot (PCP) data for the Tokyo server at Silicon Graphics International (SGI). It characterizes the server performance as either `good` (1) or `bad` (0). The instances are measurements generated by the PCP software every five seconds. See the [PCP manual](http:\/\/www.irix7.com\/techpubs\/007-2614-001.pdf) for further details. ### Attribute Information The attributes are i " ], "weight": 5 }, "qualities": { "NumberOfInstances": 959, "NumberOfFeatures": 45, "NumberOfClasses": 2, "NumberOfMissingValues": 0, "NumberOfInstancesWithMissingValues": 0, "NumberOfNumericFeatures": 42, "NumberOfSymbolicFeatures": 3, "EquivalentNumberOfAtts": null, "MeanSkewnessOfNumericAtts": 5.0087669412719364, "Quartile2MeansOfNumericAtts": 38.24234098018769, "MajorityClassPercentage": 63.92075078206465, "MeanStdDevOfNumericAtts": 154257.65039773815, "Quartile2MutualInformation": 0, "MajorityClassSize": 613, "MinAttributeEntropy": -0, "Quartile2SkewnessOfNumericAtts": 2.513040430442994, "MaxAttributeEntropy": -0, "MinKurtosisOfNumericAtts": -0.694313422236807, "PercentageOfBinaryFeatures": 2.2222222222222223, "Quartile2StdDevOfNumericAtts": 64.17992779165326, "MaxKurtosisOfNumericAtts": 958.9999999999775, "MinMeansOfNumericAtts": 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