A foundation for capturing and querying complex multidimensional data
On-line analytical processing (OLAP) systems considerably improve data analysis and are
finding wide-spread use. OLAP systems typically employ multidimensional data models to …
finding wide-spread use. OLAP systems typically employ multidimensional data models to …
[图书][B] Conceptual modeling for traditional and spatio-temporal applications: The MADS approach
C Parent, S Spaccapietra, E Zimányi - 2006 - Springer
From environmental management to land planning and geo-marketing, the number of
application domains that may greatly benefit from using data enriched with spatio-temporal …
application domains that may greatly benefit from using data enriched with spatio-temporal …
Providing contextual information to pervasive computing applications
G Judd, P Steenkiste - Proceedings of the First IEEE …, 2003 - ieeexplore.ieee.org
Pervasive computing applications are increasingly leveraging contextual information from
several sources to provide users with behavior appropriate to the environment in which they …
several sources to provide users with behavior appropriate to the environment in which they …
Probabilistic verifiers: Evaluating constrained nearest-neighbor queries over uncertain data
In applications like location-based services, sensor monitoring and biological databases, the
values of the database items are inherently uncertain in nature. An important query for …
values of the database items are inherently uncertain in nature. An important query for …
Temporal XML: modeling, indexing, and query processing
F Rizzolo, AA Vaisman - The VLDB Journal, 2008 - Springer
In this paper we address the problem of modeling and implementing temporal data in XML.
We propose a data model for tracking historical information in an XML document and for …
We propose a data model for tracking historical information in an XML document and for …
Recognizing patterns in streams with imprecise timestamps
Large-scale event systems are becoming increasingly popular in a variety of domains. Event
pattern evaluation plays a key role in monitoring applications in these domains. Existing …
pattern evaluation plays a key role in monitoring applications in these domains. Existing …
A fuzzy model for representing uncertain, subjective, and vague temporal knowledge in ontologies
G Nagypál, B Motik - … International Conferences" On the Move to …, 2003 - Springer
Time modeling is a crucial feature in many application domains. However, temporal
information often is not crisp, but is uncertain, subjective and vague. This is particularly true …
information often is not crisp, but is uncertain, subjective and vague. This is particularly true …
Cleaning timestamps with temporal constraints
Timestamps are often found to be dirty in various scenarios, eg, in distributed systems with
clock synchronization problems or unreliable RFID readers. Without cleaning the imprecise …
clock synchronization problems or unreliable RFID readers. Without cleaning the imprecise …
Transaction time support inside a database engine
D Lomet, R Barga, MF Mokbel… - … Conference on Data …, 2006 - ieeexplore.ieee.org
Transaction time databases retain and provide access to prior states of a database. An
update" inserts" a new record while preserving the old version. Immortal DB builds …
update" inserts" a new record while preserving the old version. Immortal DB builds …
Probabilistic temporal databases, I: algebra
A Dekhtyar, R Ross, VS Subrahmanian - ACM Transactions on …, 2001 - dl.acm.org
Dyreson and Snodgrass have drawn attention to the fact that, in many temporal database
applications, there is often uncertainty about the start time of events, the end time of events …
applications, there is often uncertainty about the start time of events, the end time of events …