发明名称 |
COMPUTER-IMPLEMENTED SYSTEM FOR HIERARCHICAL UNCONSTRAINING IN DATA PROCESSES |
摘要 |
Exemplary embodiments are generally directed to methods, mediums, and systems for correcting censored or constrained historical data with various possible types of computing devices, including cloud-based devices, personal computing devices, and edge-based devices. The corrected data may be used in forecasting, for example to forecast demand for a limited resource. In some embodiments, the data is modeled at a higher level of granularity than an individual record. The aggregated demand may then be pro-rated over a group of categories or users where a given category of users that might be small or nonexistent over a certain time frame may be better accommodated. Moreover, it may be easier or more efficient to make assumptions and employ computing resources at the aggregate level. |
申请公布号 |
US2017068484(A1) |
申请公布日期 |
2017.03.09 |
申请号 |
US201615257545 |
申请日期 |
2016.09.06 |
申请人 |
SAS Institute Inc. |
发明人 |
SCOTT KEVIN L.;BALIKCIOGLU METIN;DING BINGFENG;LIN SHENGKUEI;SANLI TUGRUL |
分类号 |
G06F3/06 |
主分类号 |
G06F3/06 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus comprising:
a processor; and a storage to store instructions that, when executed by the processor, cause the processor to: access a plurality of records from one or more storage devices, the plurality of records associated with a resource divided into a predetermined number of units, the plurality of records subject to a maximum cutoff threshold above which further records are not created, at least the resource and the units forming a hierarchy having a lower hierarchical level corresponding to the units and a higher hierarchical level corresponding to the resource; access a plurality of indicator variables that indicate a demand for a plurality of units of the resource among a plurality of users; model demand for the plurality of units of the resource by the plurality of users at a hierarchical level higher than the units of the resource; apply a censored regression model to the modeled demand based on the plurality of indicator variables to generate a partial censoring adjusted unconstrained demand, the applying comprising multiplying one or more observations of the indicator variables by one or more regression coefficients for the modeled demand as estimated by a maximum likelihood estimator (MLE); use the censored regression model to adjust the plurality of records to account for an amount of constrained demand above the maximum cutoff threshold by distributing the partial-censoring-adjusted unconstrained demand to a hierarchical level lower than the hierarchical level at which the demand was modeled; and transmit or store information relating to the amount of constrained demand. |
地址 |
Cary NC US |