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LREC
2010
115views Education» more  LREC 2010»
15 years 6 months ago
A General Methodology for Equipping Ontologies with Time
In the first part of this paper, we present a framework for enriching arbitrary upper or domain-specific ontologies with a concept of time. To do so, we need the notion of a time ...
Hans-Ulrich Krieger
ENTCS
2008
115views more  ENTCS 2008»
15 years 4 months ago
Time Separation of Events: An Inverse Method
The problem of "time separation" can be stated as follows: Given a system made of several connected components, each one entailing a local delay known with uncertainty, ...
Emmanuelle Encrenaz, Laurent Fribourg
SDM
2010
SIAM
156views Data Mining» more  SDM 2010»
15 years 6 months ago
Unsupervised Discovery of Abnormal Activity Occurrences in Multi-dimensional Time Series, with Applications in Wearable Systems
We present a method for unsupervised discovery of abnormal occurrences of activities in multi-dimensional time series data. Unsupervised activity discovery approaches differ from ...
Alireza Vahdatpour, Majid Sarrafzadeh
ICPR
2008
IEEE
16 years 5 months ago
Active query selection for semi-supervised clustering
Semi-supervised clustering allows a user to specify available prior knowledge about the data to improve the clustering performance. A common way to express this information is in ...
Anil K. Jain, Pavan Kumar Mallapragada, Rong Jin
ICFP
2007
ACM
16 years 4 months ago
Experience report: scheme in commercial web application development
Over the past year Untyped has developed some 40'000 lines of Scheme code for a variety of web-based applications, which receive over 10'000 hits a day. This is, to our ...
Noel Welsh, David Gurnell