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» Modeling Relational Data by the Adjacency Model
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128
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EDM
2010
111views Data Mining» more  EDM 2010»
15 years 5 months ago
On the Faithfulness of Simulated Student Performance Data
Abstract. The validation of models for skills assessment is often conducted by using simulated students because their skills mastery can be predefined. Student performance data is ...
Michel C. Desmarais, Ildikó Pelczer
PODS
2006
ACM
95views Database» more  PODS 2006»
16 years 3 months ago
Randomized computations on large data sets: tight lower bounds
We study the randomized version of a computation model (introduced in [9, 10]) that restricts random access to external memory and internal memory space. Essentially, this model c...
André Hernich, Martin Grohe, Nicole Schweik...
142
Voted
AAAI
2010
15 years 5 months ago
Recognizing Multi-Agent Activities from GPS Data
Recent research has shown that surprisingly rich models of human behavior can be learned from GPS (positional) data. However, most research to date has concentrated on modeling si...
Adam Sadilek, Henry A. Kautz
197
Voted
VLDB
2000
ACM
248views Database» more  VLDB 2000»
15 years 7 months ago
Multi-Dimensional Database Allocation for Parallel Data Warehouses
Data allocation is a key performance factor for parallel database systems (PDBS). This holds especially for data warehousing environments where huge amounts of data and complex an...
Thomas Stöhr, Holger Märtens, Erhard Rah...
261
Voted
ICDE
1999
IEEE
118views Database» more  ICDE 1999»
16 years 4 months ago
Maintaining Data Cubes under Dimension Updates
OLAP systems support data analysis through a multidimensional data model, according to which data facts are viewed as points in a space of application-related dimensions", or...
Carlos A. Hurtado, Alberto O. Mendelzon, Alejandro...