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Chapter and Conference Paper
An Efficient Data Access Method Exploiting Quadtrees on MapReduce Frameworks
Due to the advance of diverse techniques such as social networks and sensor networks, the volume of data to be processed has rapidly increased. After Google proposed the MapReduce framework which processes big...
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Chapter and Conference Paper
Online Gesture Recognition for User Interface on Accelerometer Built-in Mobile Phones
Recently, several smart phones are equipped with a 3D-accelerometer that can be used for gesture-based user interface (UI). In order to utilize the gesture UI for the real-time systems with various users, the ...
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Chapter and Conference Paper
WT-Heuristics: A Heuristic Method for Efficient Operator Ordering
In this paper, we focus on the processing of stream data whose characteristics vary unpredictably by over time. Particularly, we suggest a method which generates an efficient operator execution order called WT...
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Chapter and Conference Paper
An Efficient Encoding and Labeling for Dynamic XML Data
In order to efficiently determine structural relationships among XML elements and to avoid re-labeling for updates, much research about labeling schemes has been conducted, recently. However, a harmonic suppor...
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Chapter and Conference Paper
Ensemble Approaches of Support Vector Machines for Multiclass Classification
Support vector machine (SVM) which was originally designed for binary classification has achieved superior performance in various classification problems. In order to extend it to multiclass classification, on...
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Chapter and Conference Paper
Multiple Classifier Fusion Using k-Nearest Localized Templates
This paper presents a method for combining classifiers that uses k-nearest localized templates. The localized templates are estimated from a training set using C-means clustering algorithm, and matched to the dec...