Communication Device Content Matching Using Search Target ID
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Solution Overview
Problem
In content-centric networks, users face challenges in efficiently acquiring specific contents due to the inclusion of unnecessary data, leading to lengthy processing times when searching for targeted information, such as images of a lost child in a department store.
Innovation Solution
A communication device and system that utilize search target ID information to perform a matching process, allowing for the proper acquisition of desired content by generating an interest with search criteria and transmitting it to the network, where the content accumulator searches and verifies the content against the ID information, and transmits the relevant content back to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a user terminal performs a matching process on collected contents by using face image of the lost child, then the user terminal can pick up contents with images in which the lost child is shown, but it takes a long time to complete the process when a number of contents are collected
Solution Approach 1:
The patent divides the matching process into two segments: (1) the content accumulator performs initial filtering using search criteria to retrieve candidate contents, and (2) the user terminal performs face image matching only on the retrieved candidates. This segmentation reduces the number of contents requiring computationally intensive face matching, thereby reducing processing time while maintaining accuracy.
Solution Approach 2:
The content accumulator performs preliminary filtering of contents based on search criteria (such as time, location, content type) before the user terminal receives them. This preliminary action reduces the volume of data that needs to undergo the more time-consuming face image matching process, thus reducing overall processing time without compromising matching accuracy.
2Productivity
If a user terminal collects contents from the network by using a content name including characters identifying a necessary content, then the user can retrieve contents, but the collected contents usually include a lot of those which the user does not need
Solution Approach 1:
The patent extracts and utilizes metadata information (such as time, location, content type) from the content accumulation device along with the face image data. This extraction of additional identifying information allows for more precise filtering and selection of relevant contents, reducing the amount of unnecessary information retrieved and improving both retrieval efficiency and information quality.
Solution Approach 2:
The patent changes the search parameters from simple content names to composite search criteria including time, location, content type, and face image characteristics. By changing and combining multiple parameters, the system can more precisely identify and retrieve only the contents that match all specified criteria, thereby improving retrieval efficiency and reducing irrelevant information.
Data Source
AI summary
In order to enable a user to acquire a desired content more quickly by performing a matching process by using search target ID information identifying a search target so as to properly acquire a content regarding the search target and to shorten a time required to complete the matching process, a communication device such as router is configured such that, when receiving an interest form a content-centric network, the communication device performs a search process on contents accumulated therein, aiming to find one or more contents which meet a search criteria set specified by the interest, performs the matching process for verifying whether the content found in the search process matches the search target ID information (face image) to acquire a content regarding the search target, and transmits the acquired content to a communication device of a content request source.