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Recommendation system and method suitable for concept-drift medical scheme

A technology of concept drift and recommended method, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as increased error, smaller sample size, loss of information, etc., to achieve the effect of accurate prediction

Active Publication Date: 2017-11-17
RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE +1
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AI Technical Summary

Problems solved by technology

In order to eliminate the influence of outdated samples, the existing technology generally simply discards outdated samples, which loses the information hidden in these samples, and also leads to a smaller number of samples that can be used, which leads to an increase in errors.

Method used

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  • Recommendation system and method suitable for concept-drift medical scheme
  • Recommendation system and method suitable for concept-drift medical scheme
  • Recommendation system and method suitable for concept-drift medical scheme

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0028] Such as figure 1 As shown, the present invention is applicable to the recommendation system of medical schemes with concept drift including:

[0029] The user interface module is connected with the recommendation module and is used to read the initial training samples;

[0030] The recommendation module, connected to the workflow system, automatically and intelligently calculates the most suitable medical plan for the current case based on the data of historical cases.

[0031] The extern...

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Abstract

The invention provides a recommendation system and method suitable for concept-drift medical scheme. The system comprises a user interface module which is connected with a recommendation module and is used for reading initial training samples; the recommendation module which is connected with a work flow system and automatically and intelligently calculates a most suitable medical scheme for a current case according to data of historical cases; an external database which is connected with the recommendation module and is used for reading the initial training samples; the external database is used for storing detail information of each case, for example, personal information such as names, heights and body weights and specific medical index information. According to the invention, influence of concept drift on results is taken into account as well as factors such as sampling time; the occurrence of concept drift can be detected and outdated samples are corrected to suit new rules so that later prediction is more accurate.

Description

technical field [0001] The present invention relates to a recommender system and method, in particular to a recommender system and method suitable for medical schemes with concept drift. Background technique [0002] In the process of medical decision-making, the use of case-based recommendation algorithms such as kNN (k-Nearest Neighbor, proximity algorithm) can effectively use previous similar cases to provide recommendations for medical solutions. However, in reality, the treatment plan adopted for patients with the same characteristics is constantly changing, and new medical research progress, new drug development, etc. will cause the treatment plan to change in an irregular manner. The phenomenon that the statistical properties of the target variable change irregularly over time is usually called concept drift. In order to eliminate the influence of outdated samples, the existing technology generally simply discards outdated samples, which loses the information hidden ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 沈坤炜陈小松朱思吉曹健朱能军
Owner RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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