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Method, device and system for self-adaptively adjusting models in computer systems

A model adaptive and computer system technology, applied in the computer field, can solve problems such as model update lag, model accuracy drop, model performance drop, etc., to achieve the effects of guaranteed performance, cost saving, and efficient adjustment of response

Inactive Publication Date: 2016-07-20
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the model in the computer system is trained based on historical information, as time goes by, the samples will change and migrate, resulting in a decline in the accuracy of the model
[0004] In order to solve this problem of model performance degradation, the commonly used method is to rebuild the model after a period of time, adjust the variable parameters, or develop a brand new model, and then update or replace the original model in the system
[0005] Whether it is rebuilding a model or developing a brand new model, a lot of resources are required. Moreover, it takes a certain amount of time for the model to be re-deployed and launched online, resulting in a certain lag in the update of the model.
In some application fields, due to the rapid changes in user behavior characteristics, the model needs to be able to adjust the response quickly and efficiently, and the method of model reconstruction cannot meet this requirement.

Method used

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Embodiment Construction

[0031] In order to make the purpose, features and advantages of the present application more obvious and understandable, the following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0032] The model adaptive adjustment method, device and model adaptive adjustment system in the computer system provided by the embodiment of the present application can be used in computer systems in various fields to use machine models for decision-making or management. For example, in marketing systems, you can Predict whether the user will respond to the marke...

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Abstract

The invention relates to a method, device and system for self-adaptively adjusting models in computer systems. The method comprises the following steps: obtaining behavior data of the current observation point in a first performing stage; obtaining a prediction result output by a target model at the moment of a first observation point, wherein the first observation point is a starting time point of the first performing stage, and the prediction result is a probability estimation value, predicted by the target model, of a preset event occurring in the first performing stage; carrying out adjustment function training by utilizing the obtained behavior data and prediction result so as to obtain an adjustment function of the target model; and adjusting the prediction result output by the target model at the moment of the current observation point by utilizing the adjustment function of the target model. According to the method, device and system, self-adaptive adjustment can be carried out on the models in systems, so that adjustment response can be rapidly and efficiently carried out on the change of user behavior characteristics and the properties of the models of the systems is ensured.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a model adaptive adjustment method, device and system in a computer system. Background technique [0002] At present, among computer systems in various fields, more and more computer systems assist decision-making by deploying corresponding models. Models provide decision-making basis for various types of computer systems with their excellent prediction accuracy and sorting functions. [0003] However, since the model in the computer system is trained based on historical information, as time goes by, the samples will change and migrate, resulting in a decline in the accuracy of the model. [0004] In order to solve this problem of model performance degradation, the commonly used method is to rebuild the model after a period of time, adjust the variable parameters, or develop a brand new model, and then update or replace the original model in the system . [0005] Wh...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06K9/66
Inventor 黄承伟操颖平盛子夏
Owner ALIBABA GRP HLDG LTD
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