Extending the ODMG object model with time

Bertino, Elisa; Ferrari, Elena; Guerrini, Giovanna; Merlo, Isabella

doi:10.1007/bfb0054086

Cited by 18 publications

(37 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Of these, the historical object model proposed by Bertino et al [2] most closely relates to our work. They propose a temporal extension to the ODMG object model, called T ODMG, that uses property timestamping.…”

Section: Related Workmentioning

confidence: 56%

Tripod: A Comprehensive Model for Spatial and Aspatial Historical Objects

Griffiths

Fernandes

Paton

et al. 2001

Conceptual Modeling — ER 2001

View full text Add to dashboard Cite

Spatio-temporal extensions to data models have been an active area of research for a number of years. To date, much of this work has focused on the relational data model, with object data models receiving far less consideration. This paper presents a spatio-historical object model that uses a specialized mechanism, called a history, to maintain knowledge about entities that change over time. Key features of the resulting proposal include: (i) consistent representations of primitive spatial and temporal types; (ii) a component-based design in which spatial, temporal and historical extensions are formalized incrementally, for subsequent use together or separately; (iii) a formally specified data model. The model can be used directly during the design of spatio-historical applications, but also forms the basis of an implementation activity developing a spatio-historical object database management system.

show abstract

Section: Related Workmentioning

confidence: 56%

Tripod: A Comprehensive Model for Spatial and Aspatial Historical Objects

Griffiths

Fernandes

Paton

et al. 2001

Conceptual Modeling — ER 2001

View full text Add to dashboard Cite

show abstract

“…With specific reference to temporal object models, the historical object model proposed by Bertino et al [3] most closely relates to our work. They propose a temporal extension to the ODMG object model, called T_ODMG, that utilizes property timestamping to maintain how an objectÕs properties change over time.…”

Section: Related Workmentioning

confidence: 89%

“…Both our data model and that of [3] utilize a discrete model of time. Other proposals exist for data models that capture objects whose properties (spatial and aspatial) are continuously changing.…”

Section: Related Workmentioning

confidence: 99%

The Tripod spatio-historical data model

Griffiths

Fernandes

Paton

et al. 2004

Data & Knowledge Engineering

View full text Add to dashboard Cite

The storage and analysis of large amounts of time-varying spatial and aspatial data is becoming an important feature of many application domains. This has fuelled the need for spatio-temporal extensions to data models and their associated querying facilities. To date, much of this work has focused on the relational data model, with object data models receiving far less consideration. Where descriptions of such object models do exist, these models fail to fully integrate their spatial, aspatial and temporal dimensions into a uniform and coherent model. In addition, there is currently a lack of systems which build upon these models to produce database architectures that address the broad spectrum of issues related to the delivery of a fully functional spatio-temporal DBMS. This paper presents a foundation for the development of such a system, called Tripod, by describing a spatio-historical object model based on a specialized mechanism, called a history, for maintaining knowledge about entities that change over time. Key features of the resulting model include: (i) consistent representations of primitive spatial and timestamp types; (ii) a component-based design in which spatial, timestamp and historical extensions are formalized incrementally, for subsequent use together or separately; (iii) compatibility with mainstream query processing frameworks for object databases; and (iv) the integration of the spatio-temporal proposal with the ODMG object database standard. The paper presents a comprehensive formal characterization of the model and illustrates its capabilities in a crime data management application. It is also shown how the model can be programmed using an extension to the ODMG language bindings. The model and language bindings have been fully implemented.

show abstract

“…To define temporal objects in XML document, we combine the definitions of temporal object in [23,24] and an object tree in [7] as follows. where "OID" is the object identifier.…”

Section: Background Notions and Definitionsmentioning

confidence: 99%

TX-Kw: An Effective Temporal XML Keyword Search

Bin-Thalab¹,

El-Tazi²,

El-Sharkawi³

2013

IJACSA

View full text Add to dashboard Cite

Abstract-Inspired by the great success of information retrieval (IR) style keyword search on the web, keyword search on XML has emerged recently. Existing methods cannot resolve challenges addressed by using keyword search in Temporal XML documents. We propose a way to evaluate temporal keyword search queries over Temporal XML documents. Moreover, we propose a new ranking method based on the time-aware IR ranking methods to rank temporal keyword search queries results. Extensive experiments have been conducted to show the effectiveness of our approach.

show abstract

Extending the ODMG object model with time

Cited by 18 publications

References 10 publications

Tripod: A Comprehensive Model for Spatial and Aspatial Historical Objects

Tripod: A Comprehensive Model for Spatial and Aspatial Historical Objects

The Tripod spatio-historical data model

TX-Kw: An Effective Temporal XML Keyword Search

Contact Info

Product

Resources

About