Visual Web object search engine method based on mobile device

Abstract

The invention discloses a visual Web object search engine method based on a mobile device. The method comprises the following steps of: grabbing a Web object by utilizing a crawler, designing a data model in specific to the space attribute and the semantic attribute of the Web object and creating a Web object database, and creating an IR (information retrieval) tree index on the basis. When a request, for retrieving a visual Web object, of a user is processed, the influence of physical factors (such as position, orientation, visual angle and the like) are added, the visual information and the semantic information of the Web object are combined, and search results are returned in a manner of WYSIWYG (what you see is what you get). According to the visual Web object search engine method disclosed by the invention, the search results can be dynamically updated along with the variation of the position or orientation so that the user can obtain an experience of being personally on the scene, and therefore the physical world and the digital information world are closely combined.

Description

technical field [0001] The invention relates to a visual Web object search engine, in particular to a mobile device-based visual Web object search engine method. Background technique [0002] At present, Cyber ​​Physical System (CPS for short) is being widely concerned by workers in the computer field at home and abroad. CPS is a controllable, credible, and scalable networked physical device system that deeply integrates computing, communication, and control capabilities on the basis of environmental perception. Through the feedback loop of mutual influence between computing processes and physical processes, it realizes in-depth integration and real-time interaction to increase Or expand new functions to monitor or control a physical entity in a safe, efficient and real-time manner. [0003] The present invention is a CPS search engine with mobile devices (such as mobile phones, GPS navigators, etc.) Web objects that can dynamically update search results based on changes i...

AI Technical Summary

Problems solved by technology

[0007] The proposal of the hybrid index better solves the problem of the fusion of spatial location and text attributes, but the query processing method proposed by the researchers simply uses the absolute Euclidean distance as the standard of the spatial matching degree, and under the CPS framework, the user sense Usually only the objects within the field of view are interested. Compared with the Euclidean distance, the degree of visibility is a more suitable measure of the degree of physical matching. How to use mobile devices as the carrier to integrate the visibility and semantic information of Web objects to achieve Supporting Visual Retrieval of Massive Web Objects is a New Subject

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