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A method and system for on-demand and low-cost transmission of multi-level metadata

A transmission method and metadata technology, which is applied in the field of data transmission, can solve the problems of inability to meet small fee transmission and high transmission cost, and achieve the effects of avoiding network congestion, saving transmission time, and stabilizing transmission speed

Active Publication Date: 2018-08-17
和宇健康科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in an unstable network environment with high transmission costs, neither of them can better meet the needs of low-cost transmission.

Method used

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  • A method and system for on-demand and low-cost transmission of multi-level metadata
  • A method and system for on-demand and low-cost transmission of multi-level metadata
  • A method and system for on-demand and low-cost transmission of multi-level metadata

Examples

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Embodiment 1

[0057] This transmission method is applied to the Chinese scientific and technological papers online handheld terminal service demonstration platform to realize the functions of paper submission, review, and sharing based on Android handheld terminals. The specific system operation is described as follows:

[0058] Extract the metadata of the title, abstract, keywords, review, chapters and other information of the paper, organize it into a tree-like hierarchical structure, and store it in the server system;

[0059] The user selects the content of interest through the list of papers in the information display module of the client, and the user interacts with the system multiple times through the data interaction module;

[0060] The system receives user interaction information, and the metadata construction transmission control module calculates the information that should be sent back and judges whether it meets the user's business data requirements. If the requirements are m...

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Abstract

The invention relates to an on-demand small-cost transmission method for multistage metadata. The method comprises the following steps: partitioning an information body Q to be transmitted into n portions according to the composition structure of Q, extracting the metadata, namely, q1, q2 to qn of the n portions respectively, and calculating the transmission costs, namely, c1, c2 to cn of the size of the metadata respectively; hierarchically establishing metadata trees (MTs) by using given transmission cost sequences c1 to cn according to an MT construction algorithm from left to right in sequence, and mapping {q1, q2 to qn} into the MTs respectively, namely, {q1, q2 to qn} is greater than or equal to {k1, k2 to kn}; and transmitting all the MTs to be transmitted. The invention further discloses an on-demand small-cost transmission system for the multistage metadata. According to the method and the system, the information body Q to be transmitted is partitioned into a plurality of metadata to calculate the transmission cost of each metadata. The MTs are established according to the transmission costs, so that mapping of the transmitted information body Q to the MTs is realized. All the MTs are transmitted; the root node cost in the MTs is lowest; non-leaf nodes are transmitted preferably; and on-demand small-cost transmission is realized finally.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a method and system for transmitting multi-level metadata on demand at a low cost. Background technique [0002] At this stage, with the improvement of network bandwidth and the development of wireless networks, it is possible for a large number of mobile terminals to flexibly interact and execute complex behaviors. Macroscopically, the overall speed of the network is on the rise, and mobile terminal equipment has become the largest Internet terminal in China. But microscopically, the speed of a single mobile terminal node is still relatively slow, and the instability of the transmission speed is also a drawback of the mobile network. [0003] For the optimization of data transmission operations on handheld terminals, Chao-Tung Yang et al. proposed a P2P-based file resource sharing scheme, and Yang Yubing proposed an adaptive multi-thread breakpoint resume model based o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/06H04L69/40
Inventor 章昭辉张建飞
Owner 和宇健康科技股份有限公司
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