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Asia-Pacific Conference on Software engineering

作者： Ewan Tempero Craig Anslow Jens Dietrich Ted Han Jing Li Markus Lumpe Hayden Melton James Noble Department of Computer Science University of Auckland Auckland New Zealand School of Engineering and Computer Science Victoria University of Wellington Wellington New Zealand School of Engineering and Advanced Technology Massey University Palmerston North New Zealand Faculty of Information & Communication Technologies Swinburne University of Technology Hawthorn Australia

In order to increase our ability to use measurement to support software development practise we need to do more analysis of code. However, empirical studies of code are expensive and their results are difficult to compare. We describe the Qualitas Corpus, a large curated collection of open source Java systems. The corpus reduces the cost of performing large empirical studies of code and supports comparison of measurements of the same artifacts. We discuss its design, organisation, and issues associated with its development.

关键词： Java Libraries Pragmatics Software Software engineering Benchmark testing

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Pool-based active learning based on incremental decision tree

Pool-based active learning based on incremental decision tre...

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Shuo Wang Jian-Jian Wang Xiang-Hui Gao Xue-Zheng Wang Machine Learning Center Faculty of Mathematics and Computer Science Hebei University Baoding China Department of Electronics and Communication Engineering North China Electric Power University Baoding China Defending Faculty Zhangye Gansu China

The pool-based active learning intends to collect the samples into the pool firstly, and selects the best informative sample from it which has no label to add into the training sets for updating the classifier secondly. This paper proposed a new method based on the incremental decision tree algorithm to measure the ambiguity of the unlabeled samples for the sample selection in the active learning.

关键词： Decision trees Classification algorithms Machine learning Algorithm design and analysis Accuracy Training Testing

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Comparison of hybrid feature selection models on gene expression data

Comparison of hybrid feature selection models on gene expres...

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International Conference on ICT and Knowledge engineering

作者： Patharawut Saengsiri Phayung Meesad Sageemas Na Wichian Unger Herwig Department of Information Technology Faculty of Information Technology KMUTNB Bangkok Thailand Department of Applied Science and Social College of Industrial Technology KMUTNB Bangkok Thailand Department of Teacher Training in Electrical Engineering Faculty of Technical Education KMUTNB Bangkok Thailand Department of Communication Network Faculty of Mathematics and Computer Science Fern University of Hagen Germany

Microarray data contains thousands of genes which are used to evaluate expression level. However, most of them are not associated with cancer diseases and leads to the curse of dimensionality. The challenge based on microarray data is feature selection which searches for subsets of informative genes. At the moment, these techniques focus on filter and wrapper approaches to discover subsets of genes. Filter approach is better than wrapper approach in terms of time consuming. On the contrary, the accuracy of wrapper approach is higher than that of filter approach. However, it is more beneficial to reduce the time process and increase accuracy simultaneously when searching for subsets of genes. Thus, this paper proposes comparison of hybrid feature selection models on gene expression datasets, this consists of four steps 1) filter subgroup of gene using Correlation based Feature Selection (CFS), Gain Ratio (GR), and Information Gain (INFO) 2) transfers output of each filter method into a wrapper approach that's based on the Support Vector Machine (SVM) classifier and two heuristic searches which are Greedy Search (GS) and Genetic Algorithm (GA) 3) generate hybrid feature selection model CFSSVMGA, CSFSVMGS, GRSVMGA, GRSVMGS, INFOSVMGA, and INFOSVMGS 4) performance comparison using precision, recall, F-measure, and accuracy rate. Results from the experiment concluded the CFSSVMGA model outperformed other models on three public gene expression datasets.

关键词： Gene expression Accuracy Classification algorithms Cancer Support vector machines Filtering algorithms Colon

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Online information sharing issues in website personalization

Online information sharing issues in website personalization

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International Conference on User science and engineering (i-USEr)

作者： Mohd Norhisham Razali Fariza Hanis Abdul Razak Tan Soo Fun Rozita Hanapi Software Engineering School of Engineering and Information Technology Universiti Malaysia Sabah Malaysia Network and System Management Software Engineering and Information Technology Universiti Malaysia Sabah Malaysia Department of System Science Faculty of Computer and Mathematical Sciences Universiti Teknologi MARA Shah Alam Selangor Darul Ehsan Malaysia Office System Management Faculty of Office Management and Technology Universiti Teknologi MARA Shah Alam Selangor Darul Ehsan Malaysia

Website Personalization is one of strategic technique in delivering services in online applications. A part of process for building personalization applications is to collect particular information from the user which involves information sharing. However, the awareness about privacy concerns and security threats have caused to non-sharing behavior among the Internet Users. This situation have caused website personalization cannot be built to serve its purposes. This paper aims to investigate the people's behavior and to study the propensity of information sharing attitude in two different environments and cultures. The two environments are between real-life and online while the two cultures are between Malaysian and non-Malaysian. Since this is an exploratory study, interview with five (5) persons have been conducted. The qualitative technique that chooses was recommended for any exploratory study. The findings of this study explained the understanding of behaviors and the factors of Information Sharing. The factors are the cultural factors, the platform of sharing and the behavior of information sharing in web personalization. The sharing behavior in two environments and cultures were also compared. The data collected from the interviews have generalizing the speculations and issues in information sharing which have been discussed at the end section of this paper.

关键词： Privacy Internet Interviews Cultural differences Business Context Security

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Measuement of cerebral blood oxygeneation during a verbal fluency task with juggling by means of fNIRS

Measuement of cerebral blood oxygeneation during a verbal fl...

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IEEE Region 10 International Conference TENCON

作者： Kenji Mishima Keiichi Irie Takafumi Kato Tadashi Suetsugu Shigeto Aramaki Hiroaki Tanaka Yasuki Higaki Sei Higuchi Yoshiharu Akitake Kenichi Mishima Michihiro Fujiwara Hiroyuki Ai Masahiro Abiru Department of chemical Engineering Fukuoka University Fukuoka Japan Department of Neuropharmacology Fukuoka University Fukuoka Japan Department of Electronics Engineering and Computer Science Fukuoka University Fukuoka Japan Faculty of Sports and Health Science Fukuoka University Fukuoka Japan Department of Earth System Science Fukuoka University Fukuoka Japan Department of Industrial Economics Fukuoka University Fukuoka Japan

Functional near-infrared spectroscopy (fNIRS) was used to study changes in cerebral blood oxygenation during a verbal fluency task. Five right-handed male volunteers matched on demographic variables and verbal fluency performance participated in the study. Images were acquired over 5 minutes at 1.5 T while the subjects performed two tasks. The first involved paced silent generation of words beginning with an aurally presented cue letter. This task alternated with paced silent repetition of the aurally presented word "rest." Significant responses were observed in the left prefrontal cortex, the insula bilaterally, the midline supplementary motor area, and the medial parietal cortex.

关键词： Spectroscopy Blood Brain Imaging Wavelength measurement Particle measurements Blood flow

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A behavioural study of nodes to conserve energy in wireless sensor networks

A behavioural study of nodes to conserve energy in wireless ...

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International Conference on Design and Technology of Integrated systems in Nanoscale Era (DTIS)

作者： Walid Charfi Mohamed Masmoudi Walid Ferchichi Faouzi Derbel Sch. of Sfax Department of EE Nat. Engineering EMC Research Group Sfax Tunisia Department of Computer Science Faculty of Science Mathematics Physics & Natural of Tunis Tunis Tunisia Development Department/ Systems & Communication QUNDIS GmbH Muhlhausen Germany

ISBN: (纸本)9781424463381;9781424463404

This paper puts forward an optimization in routing processing for wireless sensor networks. The sensor node in such network is a battery-operated sensing device. These nodes are placed in space with a consideration to a base station that centralizes and consolidates the data transmitted or forwarded by sensor nodes. When optimizing the management of a Wireless Sensor Network, we have to take care of the consumption of energy that takes place while sensor nodes are running the routing process to send or relay a message to neighbors or to a Base Station. In this paper, we put forward a study of sensors' behavior by modeling and implementing a controller with Coloured Petri Network in order to ensure the reduction of energy consumption in some sensor networks in which each node can be activated or suspended as need be. The controller must deal with activation and suspension to apply a reconfiguring policy to nodes depending on an energy supply level in every sensor in order to obtain the lowest level possible of energy consumption and maintain the same service quality consisting in total coverage of the region to survey and the connection of active nodes to the functional network. The evaluation of our presented model is made by CPN-Tools.

关键词： Wireless sensor networks Energy consumption Monitoring Base stations Routing Signal processing Power system security Biosensors Batteries Sensor phenomena and characterization

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A review on the workload in the nurse rostering problem

A review on the workload in the nurse rostering problem

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International Symposium on Information Technology, ITSim

作者： Mohd Hakimi Aiman Ibrahim Suriayati Chuprat Rabiah Ahmad Habibollah Haron Nuzulha Khilwani Ibrahim Faculty of Science Computer & Information System Universiti Teknologi Malaysia Johor Malaysia College Science & Technology Universiti Teknologi Malaysia Kuala Lumpur Malaysia Centre for Advanced Software Engineering CASE Universiti Teknologi Malaysia Kuala Lumpur Malaysia Faculty of Information Technology and Communication Universiti Teknikal Malaysia Melaka Malacca Malaysia

Healthcare organization is very important for community in delivering a healthy life. Nurse is the person in charge that will handle the healthcare organization wisely. The nurses should get their duty roster with a wide hand to deliver a good service. There are some issue related to that needs to be classified such as the modes of operation and constraints. The most desirable environment for the nurses is the balance workload roster that will consider any preferences from them that is possible to achieve due to aim to give a respect and care about. Besides that, the solution approach that can be applied in their field must be clarified. In this paper, we will discuss the entire thing about the nurse rostering problem such as its constraints, the modes of operation, the process to complete a roster and the solution approach to this problem.

关键词： Scheduling Hospitals Artificial intelligence Processor scheduling Schedules Linear programming

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Proposal and evaluation for wireless sensor network which use terminal that eliminated receiver circuit

Proposal and evaluation for wireless sensor network which us...

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International Conference on Ubiquitous and Future Networks, ICUFN

作者： Hiroaki Nose Kazumasa Mizuta Hisayoshi Kunimune Miao Bao Masaaki Niimura Yasushi Fuwa Yasushi Yoshikawa Department of Computer and System Engineering Nagano Prefectural Institute of Technology Ueda Japan Graduate School of Science and Technology Shinshu University Nagano Japan Epson Toyocom Corporation Hino Japan Seiko Epson Corporation Suwa Japan Faculty of Engineering Shinshu University Nagano Japan

Sensor network terminals are installed in large numbers in the field and transmit data periodically by radio. Such terminals must be miniaturized, and save power so that each device can operate by battery for several years. As one way to satisfy these two conditions, in this research we propose a terminal design which eliminates the receiver circuit. Because there is no receiver circuit, circuitry can be miniaturized, and power can be saved because there is no need to consume power to receive signals. However, the terminals cannot perform carrier detection and reception acknowledgement because there is no receiver circuit. We propose following two new protocols to solve this problem.

关键词： Protocols Receivers Delay Power demand Zigbee Data models

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Four-level superradiant laser with full atomic cooperativity

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Physical Review A 2010年第5期81卷 053809-053809页

作者： Deshui Yu Jingbiao Chen Department of Applied Physics Graduate School of Engineering The University of Tokyo Bunkyo-ku Tokyo 113-8656 Japan Institute of Quantum Electronics and State Key Laboratory of Advanced Optical Communication System & Network School of Electronics Engineering & Computer Science Peking University Beijing 100871 People's Republic of China State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200062 People's Republic of China

We investigate a four-level superradiant laser whose intensity is proportional to N2 and whose linewidth scales as 1/N2. In the absence of spontaneous emissions, we derive the stationary solutions of the atomic full cooperativity, analyze their stabilities, and find the corresponding irreducible representation based on group U(4). We also investigate the spectra of the phase and amplitude fluctuations of the fields inside and outside the cavity and find that the amplitude fluctuations of the output fields cannot be squeezed in the low-frequency limit, which is completely different from the three-level superradiant laser system. Finally, we consider the stationary solutions corresponding to the partial cooperativity due to the symmetry breaking of U(4) induced by the atomic spontaneous emissions.

关键词： Spontaneous emission

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The InterMedia networking and security architecture for user centric multimedia convergence

The InterMedia networking and security architecture for user...

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International Symposium on Performance Evaluation of computer & Telecommunication systems SPECTS

作者： Matteo Repetto Riccardo Rapuzzi Stefano Chessa Stefano Lenzi John Gialelis Tasos Fragopoulos Consorzio Nazionale Interuniversitario per le Telecomunicazioni Parma Italy Department of Communication Computer and System Science (DIST) University of Genoa Italy CNR (ISTI-CNR) Instituto di Scienza e Tecnologie dell'Informazione France Computer Science Department University of Pisa Pisa Italy Industrial Systems Institute University of Patras Greece Electrical Engineering Department University of Patras Greece

The InterMedia project aims at progressing towards user-centric convergence of multimedia, by putting the user at the center of services (multimedia applications), devices and interfaces for the interaction. One of the main implications of the user-centric approach is the seamless and secure access to content, regardless of the users' location and terminal device(s), which requires suitable solutions to manage mobility, context-awareness and digital rights. Under this respect this paper reviews the mechanisms developed within InterMedia to support the above issues, and discusses their integration in a common networking framework addressing a generic scenario for content access.

关键词： Sensors Context Licenses Multimedia communication Protocols Servers Transform coding

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