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REACH: automated database design integrating first-order theories, reconstructive expertise, and implementation heuristics for accounting information systems

Stephen R. Rockwell, William E. McCarthy
1999 International Journal of Intelligent Systems in Accounting, Finance & Management  
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>;2-e fatcat:vlzyaor6d5bzpiyc4olht5c53y

Real-Time Facial Recognition System—Design, Implementation and Validation

M. Meenakshi
2013 Journal of Signal Processing Theory and Applications  
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

A. Steiner, M. C. Norrie
1997 Database Systems for Advanced Applications '97  
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

Alex Dekhtyar, Robert Ross, V. S. Subrahmanian
2001 ACM Transactions on Database Systems  
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]

Martin Erwig
2004 Spatio-Temporal Databases  
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

Arie Segev
1987 International Conference on Information Systems  
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

Thomas Dean
1989 Journal of the ACM  
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

G. Ozsoyoglu, R.T. Snodgrass
1995 IEEE Transactions on Knowledge and Data Engineering  
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

Michael Gertz, Matthias Renz, Xiaofang Zhou
2018 Geoinformatica  
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

C.S. Jensen, R.T. Snodgrass, M.D. Soo
1996 IEEE Transactions on Knowledge and Data Engineering  
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

Richard Snodgrass
1987 ACM Transactions on Database Systems  
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

Ouri Wolfson, Bo Xu
2010 IEEE Data Engineering Bulletin  
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

Alexander Tuzhilin, James Clifford
1995 Information Systems  
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)  
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]

Jan Chomicki, David Toman
1998 Logics for Databases and Information Systems  
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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