Temporal entity-relationship models-a survey
H Gregersen, CS Jensen - IEEE Transactions on knowledge …, 1999 - ieeexplore.ieee.org
The entity-relationship (ER) model, using varying notations and with some semantic
variations, is enjoying a remarkable and increasing popularity in both the research …
variations, is enjoying a remarkable and increasing popularity in both the research …
Querying the uncertain position of moving objects
A Prasad Sistla, O Wolfson, S Chamberlain… - … databases: research and …, 1998 - Springer
In this paper we propose a data model for representing moving objects with uncertain
positions in database systems. It is called the Moving Objects Spatio-Temporal (MOST) data …
positions in database systems. It is called the Moving Objects Spatio-Temporal (MOST) data …
[图书][B] Handbook of constraint programming
Constraint programming is a powerful paradigm for solving combinatorial search problems
that draws on a wide range of techniques from artificial intelligence, computer science …
that draws on a wide range of techniques from artificial intelligence, computer science …
[图书][B] Representations of space and time
DJ Peuquet - 2002 - books.google.com
Recent advances in information technology have enabled scientists to generate
unprecedented amounts of earth-related data, with tremendous potential for dealing with …
unprecedented amounts of earth-related data, with tremendous potential for dealing with …
Temporal and real-time databases: A survey
G Ozsoyoglu, RT Snodgrass - IEEE Transactions on …, 1995 - ieeexplore.ieee.org
A temporal database contains time-varying data. In a real-time database transactions have
deadlines or timing constraints. In this paper we review the substantial research in these two …
deadlines or timing constraints. In this paper we review the substantial research in these two …
Probview: A flexible probabilistic database system
LVS Lakshmanan, N Leone, R Ross… - ACM Transactions on …, 1997 - dl.acm.org
Probability theory is mathematically the best understood paradigm for modeling and
manipulating uncertain information. Probabilities of complex events can be computed from …
manipulating uncertain information. Probabilities of complex events can be computed from …
Making space for time: Issues in space-time data representation
DJ Peuquet - GeoInformatica, 2001 - Springer
Even with much activity over the past decade, including organized efforts on both sides of
the Atlantic, the representation of both space and time in digital databases is still problematic …
the Atlantic, the representation of both space and time in digital databases is still problematic …
On the semantics of “now” in databases
Although “now” is expressed in SQL and CURRENT_TIMESTAMP within queries, this value
cannot be stored in the database. How ever, this notion of an ever-increasing current-time …
cannot be stored in the database. How ever, this notion of an ever-increasing current-time …
Logical approaches to incomplete information: A survey
R van der Meyden - Logics for databases and information systems, 1998 - Springer
The observation that it is frequently impossible to obtain complete information in the context
of database applications has motivated a substantial literature seeking to extend the …
of database applications has motivated a substantial literature seeking to extend the …
Supporting valid-time indeterminacy
CE Dyreson, RT Snodgrass - ACM Transactions on Database Systems …, 1998 - dl.acm.org
In valid-time indeterminacy it is known that an event stored in a database did in fact occur,
but it is not known exactly when. In this paper we extend the SQL data model and query …
but it is not known exactly when. In this paper we extend the SQL data model and query …