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CHI
2008
ACM
13 years 9 months ago
Introducing item response theory for measuring usability inspection processes
Usability evaluation methods have a long history of research. Latest contributions significantly raised the validity of method evaluation studies. But there is still a measurement...
Martin Schmettow, Wolfgang Vietze
SDM
2009
SIAM
235views Data Mining» more  SDM 2009»
14 years 5 months ago
Topic Cube: Topic Modeling for OLAP on Multidimensional Text Databases.
As the amount of textual information grows explosively in various kinds of business systems, it becomes more and more desirable to analyze both structured data records and unstruc...
ChengXiang Zhai, Duo Zhang, Jiawei Han
RTSS
2009
IEEE
14 years 2 months ago
Integrating Proactive and Reactive Approaches for Robust Real-Time Data Services
— Real-time data services are needed in data-intensive real-time applications such as e-commerce or traffic control. However, it is challenging to support real-time data service...
Yan Zhou, Kyoung-Don Kang
CDC
2008
IEEE
139views Control Systems» more  CDC 2008»
14 years 2 months ago
Iterative Risk Allocation: A new approach to robust Model Predictive Control with a joint chance constraint
Abstract— This paper proposes a novel two-stage optimization method for robust Model Predictive Control (RMPC) with Gaussian disturbance and state estimation error. Since the dis...
Masahiro Ono, Brian C. Williams
ICPR
2008
IEEE
14 years 2 months ago
Multiscan-based map optimizer for RFID map-building with low-accuracy measurements
This paper studies the problem of mobile robot mapbuilding using a low-accuracy RFID sensor. In recent years, there has been increasing number of mobile robot systems using RFID l...
Kanji Tanaka