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Advances in Intelligent systems and Computing 2014年 255卷 809-816页

作者： Xue, Chongyang Liu, Feng Li, Honghui Xiao, Jun Liu, Zhen School of Computer and Information Technology Beijing Jiaotong University Beijing100044 China

ISBN: (纸本)9788132217589

Hadoop is an open source platform. Because of its open source, high fault tolerance, and scalability, it has been widely used to deal with big data in many IT industries. It becomes particularly important and difficult to monitor and analyze the performance of a Hadoop cluster as the scale of the cluster grows. Based on Hadoop source code, this paper proposed a performance monitoring tool named Hadoop Monitor. Integrated with a job scheduling framework, such as Quartz, the Hadoop Monitor grasps the performance data from Hadoop cluster periodically and then generates a performance report. This tool can provide a great help to analyze the performance of Hadoop cluster. © Springer India 2014.

关键词： MapReduce

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Braincontrol basic communicator: A brain-computer interface based communicator for people with severe disabilities

Braincontrol basic communicator: A brain-computer interface ...

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8th international conference on Universal Access in Human-computer Interaction, UAHCI 2014 - Held as Part of 16th international conference on Human-computer Interaction, HCI international 2014

作者： Fedele, Pasquale Fedele, Chiara Fath, Jarrod Liquidweb s.r.l. Siena Italy

The "BrainControl Basic Communicator" (BrainControl BC) is an augmentative and alternative communication (AAC) system based on Brain-computer interface (BCI) technology. The system has been designed for patients with severe disabilities due to pathologies such as Amyotrophic Lateral Sclerosis (ALS), Multiple Sclerosis, ischemic or traumatic injuries. The first prototype of the BrainControl BC was completed in mid 2012 and has been completed in the mid 2013. From 2012, 20 locked-in patients have been trained with success and in the last few months 12 of these patients are continuously using the system, as it represents the only possibility to communicate. BrainControl BC is part of the BrainControl project, aiming to develop a BCI platform that allows people suffering from sever disabilities to overcome physical and communicative impairments. In particular, BrainControl can help patients suffering from diseases that paralyze the whole body or parts of the body, but who retain their intellectual abilities. Future versions of BrainControl, which are currently under development, will include advanced communication and functionalities, home automation, the control of a wheelchair and robotics. © 2014 Springer international Publishing.

关键词： Brain computer interface

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Risk Assessment of Water Resources Shortage in Sanjiang Plain

Risk Assessment of Water Resources Shortage in Sanjiang Plai...

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The 9th international conference on computer and Computing Technologies in Agriculture (CCTA 2015)

作者： Qiuxiang Jiang Yongqi Cao Ke Zhao Zhimei Zhou College of Water Conservancy and Architecture Northeast Agricultural University Postdoctoral Mobile Research Station of Agricultural and Forestry Economy Management Northeast Agricultural University College of Mechanics and Architecture Northwestern Polytechnical University

ISBN: (纸本)9783319483566

In view of the problems existing in the development and utilization of water resources in Sanjiang Plain, this paper made a study on the risk assessment of water resources shortage in Sanjiang Plain. From the perspective of water resources shortage risk, analytic hierarchy process was applied to establish assessment index system and evaluation criteria, and then make a comprehensive assessment and regional difference analysis of water resources shortage risk in Sanjiang Plain. Research results showed that Shuangyashan City belonged to high degree of water resources shortage risk, while Jixi, Hegang,Jiamusi, Qitaihe, Muling and Yilan belonged to extremely high water resources shortage risk, which provided a theoretical principle for sustainable and efficient utilization of regional water resources.

关键词： Water resources Shortage risk Analytic hierarchy process Sanjiang plain Water Resources Analytic hierarchy process Sanjiang Risk Assessment Risk Management plains Theoretical principles comprehensive assessment

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On the Modelling of the computer Security Impact on the Reputation systems

On the Modelling of the Computer Security Impact on the Repu...

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2nd IFIP TC5/8 international conference on ICT-EurAsia

作者： Ksiezopolski, Bogdan Wierzbicki, Adam Rusinek, Damian Marie Curie Sklodowska Univ Inst Comp Sci Pl M Curie Sklodowskiej 5 PL-20031 Lublin Poland Polish Japanese Inst Informat Technol PL-02008 Warsaw Poland

ISBN: (纸本)9783642550324;9783642550317

Reputation systems are an important factor for building trust in virtual communities. In the article we introduce reputation module for Quality of Protection Modelling Language which allows to represent the reputation system as a part of the protocol, where all operations and communication steps can be consistently modelled. Owing to the proposed approach the reputation systems can be formally specified and computer security impact can be considered as a factor of the metrics in the reputation systems. Finally, we model and analyse the case study of the eBay reputation system with modification which will refer to the computer security impact.

关键词： Modeling languages

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A C-DBSCAN algorithm for determining bus-stop locations based on taxi GPS data

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2014年 8933卷 293-304页

作者： Wang, Wu Tao, Li Gao, Chao Wang, Binfeng Yang, Hui Zhang, Zili Zhang, Zili School of Computer and Information Science Southwest University Chongqing China Department of Information System School of Business City University of Hong Kong Hong Kong School of Information Technology Deakin University VIC3217 Australia

Determining suitable bus-stop locations is critical in improving the quality of bus services. Previous studies on selecting bus stop locations mainly consider environmental factors such as population density and traffic conditions, seldom of them consider the travel patterns of people, which is a key factor for determining bus-stop locations. In order to draw people’s travel patterns, this paper improves the density-based spatial clustering of applications with noise (DBSCAN) algorithm to find hot pick-up and drop-off locations based on taxi GPS data. The discovered density-based hot locations could be regarded as the candidate for bus-stop locations. This paper further utilizes the improved DBSCAN algorithm, namely as C-DBSCAN in this paper, to discover candidate bus-stop locations to Capital international Airport in Beijing based on taxi GPS data in November 2012. Finally, this paper discusses the effects of key parameters in C-DBSCAN algorithm on the clustering results. Keywords Bus-stop locations, Public transport service, Taxi GPS data, Centralize density-based spatial clustering of applications with noise. © Springer international Publishing Switzerland 2014.

关键词： Location

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Creating custom taggers by integrating web page annotation and machine learning 25

Creating custom taggers by integrating web page annotation a...

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25th international conference on Computational Linguistics, COLING 2014

作者： Raamadhurai, Srikrishna Kohonen, Oskar Ruokolainen, Teemu Aalto University Department of Information and Computer Science Finland Aalto University Department of Signal Processing and Acoustics Finland

ISBN: (纸本)9781941643273

We present an on-going work on a software package that integrates discriminative machine learning with the open source WebAnnotator system of Tannier (2012). The WebAnnotator system allows users to annotate web pages within their browser with custom tag sets. Meanwhile, we integrate the WebAnnotator system with a machine learning package which enables automatic tagging of new web pages. We hope the software evolves into a useful information extraction tool for motivated hobbyists who have domain expertise on their task of interest but lack machine learning or programming knowledge. This paper presents the system architecture, including the WebAnnotator-based front-end and the machine learning component. The system is available under an open source license. © COLING *** right reserved.

关键词： Websites

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Negative-Connection-Aware Tag-Based Association Mining and service Recommendation 12

Negative-Connection-Aware Tag-Based Association Mining and S...

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12th international conference on service-Oriented Computing (ICSOC)

作者： Ni, Yayu Fan, Yushun Huang, Keman Bi, Jing Tan, Wei Tsinghua Univ Dept Automat Tsinghua Natl Lab Informat Sci & Technol Beijing 100084 Peoples R China Tianjin Univ Sch Comp Sci & Technol Tianjin 300072 Peoples R China IBM Thomas J Watson Res Ctr Yorktown Hts NY 10598 USA

ISBN: (纸本)9783662453919;9783662453902

service recommendation facilitates developers to select services to create new mashups with large-granularity and added value. Currently, most studies concentrate on mining and recommending common composition patterns in mashups. However, latent negative patterns in mashups, which indicate the inappropriate combinations of services, remain largely ignored. By combining additional negative patterns between services with the already-exploited common mashup patterns, we present a more comprehensive and accurate model for service recommendation. Both positive association rules and negative ones are mined from services' annotated tags to predict future mashups. The extensive experiment conducted on real-world data sets shows a 33% enhancement in terms of F1-Score compared to classic association mining approach.

关键词： service Recommendation Negative Mashup Patterns Tag Collaboration Rules

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POSTER: Profit-Aware Cloud Resource Provisioner for Ecommerce 16

POSTER: Profit-Aware Cloud Resource Provisioner for Ecommerc...

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16th IEEE international conference on Cluster Computing (CLUSTER)

作者： Poggi, Nicolas Carrera, David Ayguade, Eduard Torres, Jordi Tech Univ Catalonia UPC BarcelonaTech Barcelona Spain Barcelona Supercomp Ctr Barcelona Spain

ISBN: (纸本)9781479955480

In recent years, the Cloud Computing paradigm has proven effective in scaling dynamically the number of servers according to simple performance metrics and the incoming workload. However while some applications are able to scale-out, as current scaling metrics do not relate system performance to sales, hosting costs and profits are not optimized completely. The following article proposes a novel technique for dynamic resource provisioning based on revenue and cost metrics, to optimize profits for online retailers in the Cloud. The proposal relies on user behavior models that relate Quality-of-service (QoS) to service capacity, and to the intention of users to buy a product on an Ecommerce site. We show how such metrics can enable profit-aware resource management by setting an optimal number of servers at each time of the day. Experiments are performed on custom, real-life datasets from an Ecommerce retailer contain over two years of access, performance, and sales data from popular travelWeb applications.

关键词： Web sites cloud computing consumer behaviour electronic commerce profitability quality of service resource allocation QoS cloud computing paradigm cost metrics dynamic resource provisioning dynamic server scaling e-commerce retailer e-commerce site incoming workload online retailer profit optimization performance metrics profit-aware cloud resource provisioner profit-aware resource management quality-of-service revenue metrics service capacity travel Web applications user behavior models user intention Biological system modeling Electronic commerce Measurement Proposals Quality of service Servers Time factors

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File system Allocation in Cloud Storage services with GlusterFS and Lustre

File System Allocation in Cloud Storage Services with Gluste...

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IEEE international conference on Smart City

作者： Wei-Chih Huang Chuan-Chi Lai Chun-An Lin Chuan-Ming Liu Department of Computer Science and Information Engineering National Taipei University of Technology

ISBN: (纸本)9781509018949

Nowadays, the information systems for enterprises become popular and these systems produce an extreme huge amount of data. The produced data are all important and should be kept for further analysis. However, as this trend continues, the lack of human resources and budgets makes the ways to efficiently store and analyze data challenging. To solve this predicament, Cloud Storage service (CSS) provides one of the possible solutions. For CSS, the storage resources become virtualized and can form a storage pool. Then, using the Internet, CSS allows the data can be accessed and backup as on the local storage. This study explores appropriate approaches for building the file systems with lower-cost to provide highly reliable and efficient CSS for enterprises. Two storage file systems are considered: GlusterFS and Lustre. GlusterFS is widely used in distributed environments while Lustre is mainly for high-performance computing. With a series of comparisons and analyses, we can find the appropriate file systems for different applications with better utilization and high performance for accessing files. The small capital enterprise companies thus can build their own csss without abundant resources. As a result, Lustre Stripe type is better and efficient for write-in under the low-cost circumstances. On the other hand, Lustre Distributed type can read files fluently and excellently.

关键词： Cloud computing Low-cost High performance GlusterFS Lustre

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SUMO in Scientific Literature, 2002-2012 1

SUMO in Scientific Literature, 2002-2012

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1st international conference on Simulation of Urban Mobility (SUMO)

作者： Krajzewicz, Daniel Inst Transportat Syst German Aerosp Ctr Berlin Germany

ISBN: (纸本)9783662450796;9783662450789

SUMO is an open source microscopic road traffic simulation developed at the German Aerospace Center since the year 2000. The major audience is the traffic research community. This article tries to answer whether SUMO got accepted, who uses it, and for which purposes. The investigation is performed based on a collection of scientific publications that name SUMO. The documents contained in this collection were bibliographically annotated and classified using three different classification schemes. The investigation reveals an increasing usage of SUMO by a growing, international community. It shows that SUMO is mainly used in the scope of research on vehicular communications.

关键词： Simulation system Applications Bibliography Faceted classification

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