The Piazza peer data management project
نویسندگان
چکیده
منابع مشابه
Peer Data Management System
MAIN TEXT A Peer Data Management System (PDMS) is a distributed data integration system providing transparent access to heterogeneous databases without resorting to a centralized logical schema. Instead of imposing a uniform query interface over a mediated schema, PDMSs let the peers define their own schemas and allow for the reformulation of queries through mappings relating pairs of schemas (...
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Peer Data Management (PDM) deals with the management of structured data in unstructured peer-to-peer (P2P) networks. Each peer can store data locally and define relationships between its data and the data provided by other peers. Queries posed to any of the peers are then answered by also considering the information implied by those mappings. The overall goal of PDM is to provide semantically w...
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Till now, big data is an emerging paradigm applied to massive datasets whose size is beyond the ability of commonly used software tools to capture, manage, and process within a tolerable elapsed time. Big data are very important for us to understand the world. Big data are often captured from various sources including social media, sensors network, scientific applications, surveillance, Interne...
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Decentralized data management has been addressed during the years by means of several technical solutions, ranging from distributed DBMSs, to mediatorbased data integration systems. Recently, such an issue has been investigated in the context of Peer-to-Peer (P2P) architectures. In this chapter we focus on P2P data integration systems, which are characterized by various autonomous peers, each p...
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Peer data management systems (PDMS) are the natural extension of integrated information systems. Conventionally, a single integrating system manages an integrated schema, distributes queries to appropriate sources, and integrates incoming data to a common result. In contrast, a PDMS consists of a set of peers, each of which can play the role of an integrating component. A peer knows about its n...
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ژورنال
عنوان ژورنال: ACM SIGMOD Record
سال: 2003
ISSN: 0163-5808
DOI: 10.1145/945721.945732