Decoding a hierarchical multi-layer data package

摘要

A hierarchical decoder is operable to decode a hierarchical multi-layer data package. The hierarchical multi-layer data package includes a plurality of layers and one or more subpackages in each layer. To decode the data package, an objective function is created based on parameters for identifying data in the data package most relevant to information of interest. Subpackages in one or more layers are evaluated using the objective function and a subpackage is selected. Information for the selected subpackage, which may include a summary and metadata, is used to determine whether the subpackage satisfies an information need. If the information need is not satisfied, a drill down procedure is performed to evaluate subpackages in a next lower layer of the data package.

主权项

1. A device for decoding a hierarchical multi-layer data package, the device comprising:
a memory; a processor disposed in communication with the memory, the processor configured to:
create an objective function based on parameters for identifying data in the hierarchical multi-layer data package most relevant to information of interest, the objective function providing a representation describing a relevance of identified data to the information of interest and an amount of data decompression to find the identified data;parse a first layer in the hierarchical multi-layer data package to identify any subpackages in the first layer;evaluate the subpackages using the objective function and information from each subpackage;select a subpackage based on the evaluation to identify the subpackage most relevant to information of interest;determine whether the selected subpackage satisfies an information need;provide decompressed data for the selected subpackage if the information need is satisfied; andidentify, by evaluating one or more subpackages in a next lower layer of the hierarchical multi-layer data package using the objective function and information from the one or more subpackages in the next lower layer of the hierarchical multi-layer data package, using the processor, a subpackage in the next lower layer of the hierarchical multi-layer data package likely to be most relevant to the information of interest if the information need is not satisfied, wherein creating the objective function comprises using device attributes and information associated with the information of interest to create the objective function, and wherein evaluating the subpackages using the objective function comprises using the device attributes and the information associated with the information of interest to evaluate the subpackages and to select a subpackage most relevant to the information of interest.