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REACH: automated database design integrating first-order theories, reconstructive expertise, and implementation heuristics for accounting information systems
1999
International Journal of Intelligent Systems in Accounting, Finance & Management
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3) implementation compromise heuristics derived from the design experience of database designers. ...
This tool aids an enterprise database analyst in the conceptual design stages of view modeling and view integration. ...
An earlier version of parts of this paper, prior to system implementation, was presented at The International Workshop on Expert Systems and Their Applications in Avignon, France, 1989. ...
doi:10.1002/(sici)1099-1174(199909)8:3<181::aid-isaf172>3.0.co;2-e
fatcat:vlzyaor6d5bzpiyc4olht5c53y
Real-Time Facial Recognition System—Design, Implementation and Validation
2013
Journal of Signal Processing Theory and Applications
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This paper presents the design, implementation and validation of a Digital Signal Processor (DSP)-based Prototype facial recognition and verification system. ...
The current implementation uses images captured using a WebCam, compares it to a stored database using methods of Principal Component Analysis (PCA) and Discrete Cosine Transform (DCT). ...
Meenakshi / Journal of Signal Processing Theory and Applications(2013) 1: 1-18 ...
doi:10.7726/jspta.2013.1001
fatcat:vf5u6askyzbcnbsqjq57h2ckma
Implementing Temporal Databases in Object-Oriented Systems
1997
Database Systems for Advanced Applications '97
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We present a temporal object data model, query language and system that support temporal database applications. ...
We then show how equivalent temporal constructs and operations could be provided in existing object-oriented database management systems (OODBMS) and describe how we did this in the 02 system. ...
Snodgrass (editors), Temporal Databases: Theory, Design, and Implementation, Chapter 14, pages 329-355. Benjamin/Cummings Publishing Company, 1993. [lo] S. Navathe and R. Ahmed. ...
doi:10.1142/9789812819536_0040
fatcat:vwxiclhkkrayndd24ddjn5jkyy
Probabilistic temporal databases, I: algebra
2001
ACM Transactions on Database Systems
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Dyreson and Snodgrass have drawn attention to the fact that in many temporal database applications, there is often uncertainty present about the start time of events, the end time of events, the duration ...
In this paper, we first introduce the syntax of Temporal-Probabilistic (TP) relations and then show how they can be converted to an explicit, significantly more space-consuming form called Annotated Relations ...
In this paper, we wish to allow designers of TP-databases to specify probability distributions for each set of time points. ...
doi:10.1145/383734.383736
fatcat:xqswmh2frbgpznbrg6sekyhlhm
Toward Spatio-Temporal Patterns
[chapter]
2004
Spatio-Temporal Databases
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We will not present a fully-fledged design. ...
Based on our previous work on spatiotemporal predicates, we outline the design of spatiotemporal patterns as a query mechanism to characterize complex object behaviors in space and time. ...
[...] there is a critical need for theories and tools that will enable efficient and reliable characterization of spatio-temporal patterns contained in image time series. ...
doi:10.1007/978-3-662-09968-1_3
fatcat:dprbmhswv5ahlb6r4waplrc774
Logical and Physical Temporal-Database Design
1987
International Conference on Information Systems
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This paper examines problems and approaches to logical and physical temporal-database design. The logical model is used to determine the functionality required of the physical design. ...
Due to the special nature of temporal data, existing database structures are inadequate. The nature of physical design problems are examined and some solutions proposed. ...
A GENERALIZED TEMPORAL DATABASE DESIGN 5.2 Properties of TSs There are many parameters that effect the physical The properties of the TSs affect the physical design design of a temporal database. ...
dblp:conf/icis/Segev87
fatcat:gs3wpshuwzcu5bphxw6foi23ba
Using temporal hierarchies to efficiently maintain large temporal databases
1989
Journal of the ACM
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Many routine database operations must search through the database for time tokens satisfying certain temporal constraints. ...
Temporal database systems maintain this information in order to support various sorts of inference (e.g., answering questions involving propositions that are true over some intervals and false over others ...
Finally, there are hybrid temporal databases that encode both transaction time and valid time in order to support the functionality of static rollback databases and historical databases; TQUEL [42] and ...
doi:10.1145/76359.76360
fatcat:4feku7o53besxmaftwbvvgqxsu
Temporal and real-time databases: a survey
1995
IEEE Transactions on Knowledge and Data Engineering
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We examine temporal and real-time DBMS implementation. Finally, we summarize major research accomplishments to date and list several unanswered research questions. ...
A temporal database contains time-varying data. In a real-time database transactions have deadlines or timing constraints. ...
He has written or coedited three books, including Temporal Databases Theory, Design and Implementation, and approximately 40 joumal and conference papers. ...
doi:10.1109/69.404027
fatcat:5ao5knajt5g6pbwv7s3wvm65sm
Editorial: Advances in spatial and temporal databases
2018
Geoinformatica
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SSTD symposia primarily focus on original results in theory, design, implementation, and applications of spatial and temporal database technology. ...
It contains extended versions of the four contributions that have been selected as best papers at the 15th International Symposium on Spatial and Temporal Databases (SSTD 2017) in Arlington, VA, U.S.A. ...
Another rather classic but still very important subfield in spatial and spatio-temporal database research is routing in traffic networks. ...
doi:10.1007/s10707-018-0333-6
fatcat:gpnzycr5uvadzagvef5asdd27e
Extending existing dependency theory to temporal databases
1996
IEEE Transactions on Knowledge and Data Engineering
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On this basis, the temporal database design proposals known to us are introduced and evaluated. ...
As a result, the role played by temporal normal forms during temporal database design closely parallels that of normal forms during conventional database design. ...
National Science Foundation under grant ISI-8902707 and ISI-9302244, by IBM contract #1124, and by an AT&T Foundation grant. Christian S. ...
doi:10.1109/69.536250
fatcat:humzbg4njre53dcx62uk2aw7ue
The temporal query language TQuel
1987
ACM Transactions on Database Systems
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TQuel ia a superaet of Quel, the query language in the Ingres relational database manogement syatern. ...
This paper provide8 an overview of the language, motivating the vorioua deaign decisiona with the objective that it be a minimal eztenaion, both eyntactically and semantically, of Quel. ...
, and the design of temporal query languages. ...
doi:10.1145/22952.22956
fatcat:gxvyruffxvhvdeukg3hfimv6ia
Spatio-temporal Databases in Urban Transportation
2010
IEEE Data Engineering Bulletin
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More specifically, we focus on spatio-temporal databases in urban transportation. ...
This area studies methods of routing, navigation, and tracking in transportation networks (the spatio-temporal database) that may involve multiple modes ...
Relevant research issues include: 1. data models and appropriate query languages to represent the routing problem; 2. performance of the routing and tracking algorithms (see e.g. [25] ), and their incorporation ...
dblp:journals/debu/WolfsonX10
fatcat:djv3ozc65ngq5c4my6sm5tkb6q
On periodicity in temporal databases
1995
Information Systems
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in the literature of temporal databases. ...
The issue of periodicity is generally understood to be a desirable property of temporal data that should be supported by temporal database models and their query languages. ...
In summary, the work of 116, 7, 51 studies the theory of temporal deductive databases and in the process examines certain theoretical aspects of periodicity. ...
doi:10.1016/0306-4379(95)00034-8
fatcat:rmnfyr34ybgcjeabssq2wxjwuu
Literature review of spatio-temporal database models
2004
Knowledge engineering review (Print)
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Recent efforts in spatial and temporal data models and database systems attempt to achieve an appropriate kind of interaction between the two areas. ...
This paper reviews the different types of spatio-temporal data models that have been proposed in the literature as well as new theories and concepts that have emerged. ...
Ø The spatial and temporal dimensions should be considered separately and incorporated into the database design. ...
doi:10.1017/s026988890400013x
fatcat:hookttdow5fijctnpfobv3fdxa
Temporal Logic in Information Systems
[chapter]
1998
Logics for Databases and Information Systems
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In this chapter, we survey the fundamental varieties of temporal logic and describe their applications in information systems. ...
Temporal logic is obtained by adding temporal connectives to a logic language. Explicit references to time are hidden inside the temporal connectives. ...
Throughout this chapter, we have outlined some of the remaining open issues that deal with temporal language design, analysis, and implementation. ...
doi:10.1007/978-1-4615-5643-5_3
fatcat:bmtv3r7w2bbtfldaxefnqmsbou
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