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Metadata repository

About: Metadata repository is a research topic. Over the lifetime, 5841 publications have been published within this topic receiving 121778 citations.


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Patent
12 Jun 2002
TL;DR: In this article, a metadata management system (MDS) may include partitioned migratable metadata, where metadata may be stored in multiple metadata partitions (102-0 to 102-11) and each metadata partition may be assigned to a particular system resource.
Abstract: According to one embodiment, a metadata management system (MDS) may include partitioned migratable metadata. Metadata may be stored in multiple metadata partitions (102-0 to 102-11). Each metadata partition may be assigned to a particular system resource (104-0 to 104-5). According to predetermined policies, such as metadata aging, metadata stored in one metadata partition may be migrated to a different metadata partition. A forwarding object can be placed in the old metadata partition to indicate the new location of the migrated metadata. Metadata partitions (102-0 to 102-11) may be reassigned to different resources, split and/or merged allowing a high degree of scalability, as well as flexibility in meeting storage system needs.

111 citations

Patent
14 Mar 2003
TL;DR: In this paper, a policy-based data management system, method, and apparatus are configured to operate over a distributed storage system such as a storage area network (SAN), where files to be stored on the network are each assigned a service class and a storage pool based on the application of policies to file attributes such as file name, type, user, etc.
Abstract: A policy-based data management system, method, and apparatus are disclosed. The system, method, and apparatus are configured to operate over a distributed storage system such as a storage area network (SAN). Files to be stored on the network are each assigned a service class and a storage pool based on the application of policies to file attributes such as file name, type, user, etc. The service class and storage pool designations are stored as metadata. Files may be retrieved using the metadata to identify the storage pool where the file is stored, and the service class listed within the metadata may be used to control the manner in which the file is handled. A metadata server may be utilized to provide the appropriate service class of files in response to requests from remote clients that may be of different computing platforms.

111 citations

Patent
Xian-Sheng Hua1, Feng Wu1, Shipeng Li1
27 Feb 2006
TL;DR: In this paper, a metadata file is stored in a memory of a computing device, which includes metadata derived from motion image data and a semantic attribute related to the image data, and the metadata is capable of facilitating text-based searching operations to locate one or more motion images associated with metadata.
Abstract: Arrangements and methods are described that provide organization of motion image data. In one exemplary implementation, a metadata file is stored in a memory of a computing device. The metadata file includes metadata derived from motion image data. The metadata may include at least a genre associated with the motion image data and a semantic attribute related to the motion image data. The metadata is capable of facilitating text-based searching operations to locate one or more motion image data associated with the metadata.

111 citations

Journal ArticleDOI
TL;DR: A set of scalable quality metrics for metadata based on the Bruce & Hillman framework for metadata quality control is presented and it is found that several metrics, especially Text Information Content, correlate well with human evaluation and that the average of all the metrics are roughly as effective as people to flag low-quality instances.
Abstract: Owing to the recent developments in automatic metadata generation and interoperability between digital repositories, the production of metadata is now vastly surpassing manual quality control capabilities. Abandoning quality control altogether is problematic, because low-quality metadata compromise the effectiveness of services that repositories provide to their users. To address this problem, we present a set of scalable quality metrics for metadata based on the Bruce & Hillman framework for metadata quality control. We perform three experiments to evaluate our metrics: (1) the degree of correlation between the metrics and manual quality reviews, (2) the discriminatory power between metadata sets and (3) the usefulness of the metrics as low-quality filters. Through statistical analysis, we found that several metrics, especially Text Information Content, correlate well with human evaluation and that the average of all the metrics are roughly as effective as people to flag low-quality instances. The implications of this finding are discussed. Finally, we propose possible applications of the metrics to improve tools for the administration of digital repositories.

111 citations

Patent
04 May 2009
TL;DR: In this paper, a client stores client metadata entries corresponding to a plurality of data objects and requests a user to select from among a predefined set of conflict resolutions to resolve the conflict, and the client performs an action in accordance with the conflict resolution selected by the user.
Abstract: A client stores client metadata entries corresponding to a plurality of data objects. During a first phase of a synchronization process, the client sends one or more client metadata entries to a server. Each client metadata entry sent corresponds to a data object for which at least one metadata parameter has changed since a prior execution of the synchronization process. During a second phase of the synchronization process, the client receives from the server one or more server metadata entries, each having at least one parameter that has changed since a prior execution of the synchronization process. The client identifies any received server metadata entry that conflicts with a corresponding client metadata entry, requests a user to select from among a predefined set of conflict resolutions to resolve the conflict, and the performs an action in accordance with the conflict resolution selected by the user.

110 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202332
202279
202113
202011
201921
201824