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Data models and query languages for spatial databases
1998
Data & Knowledge Engineering
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Hereto, we give an overview of some well-known data models and query languages of spatial database systems. ...
In this respect, we classify data models and query languages according to the type of generic operations they are designed to support [33] . ...
Acknowledgments The authors are very indebted to Jan Van den Bussche and Dirk Van Gucht for their fruitful cooperation and to the referees for their constructive remarks. ...
doi:10.1016/s0169-023x(98)00052-4
fatcat:r23ait7zoje6rljexupc2kuq4a
Query Languages and Data Models for Database Sequences and Data Streams
[chapter]
2004
Proceedings 2004 VLDB Conference
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We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments to deal with them. ...
These query language extensions require matching extensions to basic relational data model to support sequences explicitly ordered by timestamps. ...
Acknowledgements This work was supported in part by a gift from Teradata, and by the National Science Foundation grant NSF-IIS 0339259. ...
doi:10.1016/b978-012088469-8/50045-0
fatcat:634as4y6u5fqdk4fcrzm6nqb4a
Query Languages and Data Models for Database Sequences and Data Streams
[chapter]
2004
Proceedings 2004 VLDB Conference
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We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments to deal with them. ...
These query language extensions require matching extensions to basic relational data model to support sequences explicitly ordered by timestamps. ...
Acknowledgements This work was supported in part by a gift from Teradata, and by the National Science Foundation grant NSF-IIS 0339259. ...
doi:10.1016/b978-012088469-8.50045-0
dblp:conf/vldb/LawWZ04
fatcat:idep6dm6fzg3bgxgxdorbc2hwi
A relational database model and prototype for storing diverse discrete linguistic data
2015
Journal for Language Technology and Computational Linguistics
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Introduction This article describes a model for storing multiple forms of linguistic data within a relational database as developed and tested through a prototype database for storing data from Arabic ...
a 'tag-and-relationship' database model. ...
dblp:journals/ldvf/Magidow15
fatcat:ypariwougndv3oymtwu7syezcu
Relational languages and data models for continuous queries on sequences and data streams
2011
ACM Transactions on Database Systems
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are even more serious for data streams than for databases. ...
Most data stream management systems are based on extensions of the relational data model and query languages, but rigorous analyses of the problems and limitations of this approach, and how to overcome ...
Yijian Bai, Richard Luo Chang, Hetal Thakkar, and Nikolay Laptev deserve credit for their efficient implementation of UDAs in the Stream Mill DSMS. ...
doi:10.1145/1966385.1966386
fatcat:lmecigomsjhstb76rb4udz6la4
A generic data model and query language for spatiotemporal OLAP cube analysis
2012
Proceedings of the 15th International Conference on Extending Database Technology - EDBT '12
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Although many models have been proposed for adding spatial information to OLAP tools, no one allows the user to perceive data as a cube, and analyze any type of spatial data, continuous or discrete, together ...
a very general framework for spatiotemporal data analysis. ...
Alejandro Vaisman has been partially funded by the "Open Semantic Cloud for Brussels (OSCB)" Project, supported by the Brussels Capital Region, Belgium. ...
doi:10.1145/2247596.2247632
dblp:conf/edbt/GomezGV12
fatcat:ervhyyehevgl5p7q5hogybnl4a
ROSA: A Data Model and Query Language for e-Learning Objects
2003
PGL DataBase Research Conference
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In this paper, we present ROSA Data Model and Query Language, designed as an extension to RDF data model and RQL query language. ...
The Data Model is structured around the LO modeling and their relationships, adapted to the elearning domain. An algebra defines valid operations over LO data. ...
In this paper, our attention is focused on proposing a data model and query language as a formal basis for the development of ROSA LCMS, in the context of the Semantic Web. ...
dblp:conf/pgldb/PortoMFFSCC03
fatcat:ve47x7zzknholnsj37j5ovymaq
Non-Deterministic Aspects of Object-Creating Database Transformations
[chapter]
1993
Workshops in Computing
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Various non-deterministic aspects of object creation in database transformations are discussed, from a modeling as well as from an expressive power point of view. ...
Acknowledgment We are indebted to Marc Gyssens for inspiring discussions on the issues of compositionality of determinate database transformations and the completeness of SNIQL q . ...
Database transformations are binary accessibility relationships between database instances, and provide a simple, unifying model for the study of database query languages and important notions in database ...
doi:10.1007/978-1-4471-3554-8_1
dblp:conf/fmldo/BusscheG92
fatcat:7iwtjiojibbxvozx72df6budnq
LingSync and the Online Linguistic Database: New Models for the Collection and Management of Data for Language Communities, Linguists and Language Learners
2014
Proceedings of the 2014 Workshop on the Use of Computational Methods in the Study of Endangered Languages
unpublished
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LingSync and the Online Linguistic Database (OLD) are new models for the collection and management of data in endangered language settings. ...
The paper discusses the requirements of software used for endangered language documentation, and presents novel data which demonstrates that users are actively seeking alternatives despite existing software ...
The first executes Sphinx speech recognition routines for languages with known language models. ...
doi:10.3115/v1/w14-2204
fatcat:h2jnucni6bejveyx7f5hebusfq
Federated databases and systems: Part I?A tutorial on their data sharing
1992
The VLDB journal
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The issues and solutions for the interoperability of a class of heterogeneous databases and their database systems are expounded in two parts. ...
Interoperability in this context refers to data sharing among heterogeneous databases, and to resource consolidation of computer hardware, system software, and support personnel. ...
Acknowledgments The work reported here is supported by funds from NPS, NPMTC, and NRL. The author would like to thank the referees for their recommended changes. ...
doi:10.1007/bf01228709
fatcat:v6vc7oifhbd2dk3b7py2l4dn5y
A Data Model for Effectively Computable Functions
2000
International Conference on Extending Database Technology
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For example, constraint programming is a remedy for infinite data; constraints and triggers of relational database management systems for functional dependency; and methods in object-oriented data model ...
Data models for storing persistent data may not be appropriate for data communication, and common data protocols (or data models) for data communication may not be appropriate for storing persistent data ...
dblp:conf/edbt/Xu00
fatcat:eoxd565utbemjm3vbbaapxdhdq
Querying RDF Data from a Graph Database Perspective
[chapter]
2005
Lecture Notes in Computer Science
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From this point of view it is compared with other database models, particularly with graph database models, which are very close in motivations and use cases to RDF. ...
We concentrate on query languages, analyze current RDF trends, and propose the incorporation to RDF query languages of primitives which are not present today, based on the experience and techniques of ...
Güting [G94] proposed an object-oriented data model and query language for graph databases called GraphDB. ...
doi:10.1007/11431053_24
fatcat:gia7gzrs2jhjdlecw3vvexop6y
On the interaction between true source, training, and testing language models
1991
[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing
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An interaction has been found between the true source language model, training language model, and the testing language model. ...
This interaction has implications for vocabulary independent modeling, testing methodologies, discriminative training, and the adequacy of our current databases for continuous speech recognition (CSR) ...
This true language model is known for some artificial tasks such as the DARPA Resource Management (RM) database [16] , but can be estimated for naturally elicited speech and text if sufficient data is ...
doi:10.1109/icassp.1991.150403
dblp:conf/icassp/PaulBB91
fatcat:qprskv2c2nf5za4ndwqavqmglm
A Comparison of Current Graph Database Models
2012
2012 IEEE 28th International Conference on Data Engineering Workshops
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Our review includes general features (for data storing and querying), data modeling features (i.e., data structures, query languages, and integrity constraints), and the support for essential graph queries ...
In this paper we present a systematic comparison of current graph database models. ...
The benefits of using a graph data model are given by: the introduction of a level of abstraction which allows a more natural modeling of graph data; query languages and operators for querying directly ...
doi:10.1109/icdew.2012.31
dblp:conf/icde/Angles12
fatcat:qnq5x6mjdzdezltn537vakgt2u
The impact of natural language access on database design and implementation
1983
Proceedings of the first conference on Applied natural language processing -
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Current work in all these areas suggests the need to augment data models in particular ways. 2. Ideas for data models that arise from the study of natural language Semantics. ...
One example of this is the uniform use of first-order logic as the "logical form" of natural language sentences as the representation of knowledge and data, and as the medium for deductive retrieval. ...
Current work in all these areas suggests the need to augment data models in particular ways.
2. Ideas for data models that arise from the study of natural language Semantics. ...
doi:10.3115/974194.974234
dblp:conf/anlp/Kaplan83
fatcat:kp7zrtozivdonddnjwjiwgmfpa
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