Hierarchical Metadata Tagging for Local Content Searchability
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Solution Overview
Problem
Existing systems face challenges in efficiently managing and searching diverse content stored locally on user devices as the amount of content increases, particularly in finding and retrieving specific resources like documents and media files.
Innovation Solution
A search augmentation system that utilizes two external metadata sources to generate searchable tags, where the first level of metadata is obtained from a metadata service provider and further enhanced with a second level of metadata, allowing for improved searchability through a search engine by associating these tags with the resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a search engine crawls and indexes local documents, then basic search functionality is provided, but search effectiveness deteriorates as content volume and diversity increase
Solution Approach 1:
The patent introduces a hierarchical tagging system with multiple levels of metadata. Instead of relying solely on basic file properties, the system creates first-level tags from resource metadata and second-level tags from external metadata sources, adding dimensional depth to the search index structure to handle increasing content volume and diversity effectively
Solution Approach 2:
The patent employs external metadata service providers as intermediaries between the local content and the search engine. These services enrich local resource metadata with additional contextual information, enabling more effective search without requiring the search engine to directly process all raw content, thus maintaining search effectiveness as content volume grows
2Reliability
If metadata is obtained from external sources, then searchability is enhanced, but system complexity increases
Solution Approach 1:
The patent divides the metadata acquisition process into distinct segments: a metadata request module that obtains first-level metadata from external sources, and a search augmentation module that generates second-level tags. This segmentation allows the system to manage complexity by breaking down the metadata enrichment process into modular, independent components with clear interfaces
Solution Approach 2:
The system performs preliminary metadata acquisition and tag generation before the actual search operation. By pre-obtaining metadata from external sources and pre-generating tags, the system reduces the complexity and computational burden during search execution, as the indexing structure is prepared in advance
Data Source
AI summary
The ability to search for content such as documents and other resources is enhanced through the use of two external sources of information. Each of the external sources may provide information (e.g., metadata) that may be employed as searchable tags that may be used by a search engine to locate the resources. A first level of tags may be obtained in a variety of different ways. For example, information extracted from a resource may be sent to a metadata service provider which can provide suitable metadata associated with the resource. This metadata, which may serve as the first level of tags, may be subsequently sent to a second metadata service provider to obtain additional metadata that may serve as the second level of tags.