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A Feedback-Based Adaptive Subjective-Objective Weight Context-Aware System and Its Working Method

A technology of perception system and subjective weight, applied in the field of context awareness, can solve problems such as hindering multi-system interconnection and interoperability, poor intelligence, unfavorable system expansion and reuse, etc.

Active Publication Date: 2019-09-27
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in recent years, researchers have carried out a lot of research in the fields of context acquisition, context processing, context distribution, and context application. However, a lot of research work is based on specific application scenarios, and the system architecture and application logic are tightly coupled. It hinders the interconnection and interoperability between multiple systems, which is not conducive to system expansion and reuse
[0006] To sum up, the existing context-aware systems are not very perfect, some are less intelligent, and some are more restricted by the application field. On the basis of improving the existing problems, how to provide users with more accurate and intelligent personalized Services remain a research focus in the field of context-awareness

Method used

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  • A Feedback-Based Adaptive Subjective-Objective Weight Context-Aware System and Its Working Method
  • A Feedback-Based Adaptive Subjective-Objective Weight Context-Aware System and Its Working Method
  • A Feedback-Based Adaptive Subjective-Objective Weight Context-Aware System and Its Working Method

Examples

Experimental program
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Effect test

Embodiment 1

[0063] A context-aware system with adaptive subjective and objective weights based on feedback, such as figure 1 As shown, it includes original context information collection module, context fusion module, context reasoning module, context application module and user module.

[0064] The original context information acquisition module is connected to the context fusion module, and the context fusion module, context reasoning module, context application module and user module are sequentially connected in a loop;

[0065] The original context acquisition module is used to collect original context information from different information sources in different ways, and the original context information refers to the original data collected from different sensors; the context fusion module is used to fuse the original context information to extract possible The primary context information used by the context reasoning module; the context reasoning module is used to reason various pri...

Embodiment 2

[0074] The working method of the context awareness system described in embodiment 1, such as figure 2 As shown, this embodiment takes a scenario of context-aware computing—a smart fitness system as an example. In the smart fitness system, different sensors are used to collect context information such as the user's weight, height, heart rate, and blood oxygen saturation, respectively. for I w , I h , I r , I o . By collecting these four kinds of contextual information, it finally proposes fitness items with appropriate exercise intensity to the user. In this example, the final recommendations are given in three categories: weaker intensity items, medium intensity items, and higher intensity items. Including the following steps:

[0075] S01: Collection of original context information

[0076] The obtained original context information has 1 set of weight information I w , 2 sets of height information I h1 , I h2 , 2 sets of heart rate information I r1 , I r2 , 1 set...

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Abstract

The invention relates to a feedback-based adaptive subjective and objective weight context awareness system and a working method thereof. The context awareness system includes an original context information collection module, a context fusion module, a context reasoning module, a context application module and a user module, and the user module is also connected to the context fusion module. The context-aware system introduces an adaptive subjective and objective weight distribution mechanism based on user feedback in the context fusion module, which can dynamically adjust and optimize the respective contribution rates of the subjective weights and objective weights of various context information, and improve the accuracy and efficiency of context information fusion , so that the system can provide users with more intelligent and personalized services.

Description

technical field [0001] The invention relates to a feedback-based self-adaptive subjective and objective weight context awareness system and a working method thereof, belonging to the technical field of context awareness. Background technique [0002] With the large-scale application of wireless sensor network, human-computer interaction and intelligent computing technology, context-aware technology for the purpose of providing users with "transparent" interaction has developed rapidly. The context-aware system realizes the transformation of the computing system from device-centered to human-centered. The computing system can automatically collect interesting context information and perceive changes in the application situation, and actively provide users with relevant applications based on the collected context information. Serve. [0003] The wireless sensor network technology is becoming more and more mature, so that a wireless sensor network composed of a large number of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06N5/00G06N5/04
CPCG06N5/04G06N5/01
Inventor 许宏吉周英明房海腾潘玲玲孙君凤许征征杜保臻
Owner SHANDONG UNIV
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