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International Conference on Awareness science and Technology

作者： Dylan Kessler Qiangfu Zhao Dept. of Computer Science and Software Engineering Rose-Hulman Institute of Technology Terre Haute Indiana United States Dept. of Computer and Information Systems The University of Aizu Aizuwakamatsu Fukushima Japan

ISBN: (纸本)9781467321112

In today's society, information security and hiding is a key mechanism to protecting one's identity. Image morphing can hide a secret image in a morphed image using a second, reference image. One of the primary methods to make the morphing based information hiding technology practically useful is interactive evolutionary algorithm (IEA). When using IEA, however, the user who is rating the images for their naturalness must rate a large amount of images. During this period of time, it is possible for the user to subconsciously shift the rating criteria, thus skewing the results of the algorithm. To help solve this problem, we propose a k-nearest neighbor (k-NN) reminder, which analyzes the user's previous inputs and creates an estimated fitness rating for images to aid the user in grounding his or her ratings. We ran experiments testing the differences in using the IEA with and without the k-NN reminder, looking to see what impact the algorithm had on the speed of the analysis and the ease of the user's rating ability. Results show that in many instances, the k-NN makes it easier for the user to maintain a standard criterion for the rating of images, with no noticeable impact on the speed of the process.

关键词： Information hiding steganography image morphing interactive differential evolution k-nearest neighbor algorithm image morphing K-nearest neighbor algorithm Steganography Rating images International Energy Agency Consumers impact velocity Mug shots speed

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Defect detection in woven fabric using weighted morphology

Defect detection in woven fabric using weighted morphology

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International Conference on Computing and Networking Technology (ICCNT)

作者： S. Priya T. Ashok kumar Varghese Paul Dept. of computer Sc. & Engg: Govt. Model Engineering College Ernakulam Kerala India Dept. of Electronics & Com. Engg: College of Engineering Cherthala Alappuzha Kerala India TocH Institute of Science& Technology Kerala India

This paper aims at investigating a novel solution to the problem of defect detection from the images of woven fabric. Automated visual inspection systems are an attractive alternative to human visual inspection in the textile industry, especially when the quality control of products in the industry is a significant problem. In manual fault detection systems with trained inspectors, very less percentage of the defects are being detected, and thus insufficient and costly. Therefore, automated visual inspection systems are a long felt need in the textile industry. The development of an automated web inspection system requires robust and efficient fabric defect detection techniques. For the detection of fabric defects, the pre-processed image is decomposed into its bit planes. The lower order bit planes are found to carry significant information of the location and shape of defects. Then we find the exact location by means of weighted morphology. The algorithm has been evaluated on a subset of TILDA 1 image database with various visual qualities. Robustness with respect to the changes in parameters of the algorithm has been examined. The test results obtained exhibit accurate defect detection with low false alarms, thus showing the effectiveness and robustness of the proposed detection scheme.

关键词： Morphology Noise Inspection Fabrics Humans Manufacturing

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Selective opening chosen ciphertext security directly from the DDH assumption

Selective opening chosen ciphertext security directly from t...

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6th International Conference on Network and System Security, NSS 2012

作者： Liu, Shengli Zhang, Fangguo Chen, Kefei Dept. of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China School of Information Science and Technology Sun Yat-sen University Guangzhou 510006 China State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences China Shanghai Key Laboratory of Scalable Computing and Systems Shanghai China

ISBN: (纸本)9783642346002

Chosen-ciphertext security has been well-accepted as a standard security notion for public key encryption. But in a multi-user surrounding, it may not be sufficient, since the adversary may corrupt some users to get the random coins as well as the plaintexts used to generate ciphertexts. The attack is named "selective opening attack". We study how to achieve full-fledged chosen-ciphertext security in selective opening setting directly from the DDH assumption. Our construction is free of chameleon hashing, since tags are created for encryptions in a flexible way to serve the security proof. © 2012 Springer-Verlag.

关键词： Public key cryptography

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Machine-driven Code Inspection to Reduce Restated Information

Machine-driven Code Inspection to Reduce Restated Informatio...

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2012 International Conference on Artificial Intelligence and Soft Computing(ICAISC 2012)

作者： Tomas Cerny Vaclav Chalupa Lukas Rychtecky Tomas Linhart Czech Technical University dept. Computer Science and Engineering FEE Charles Square 13 Prague 2 Czech Republic Czech Technical University dept. Software Engineering FIT Thakurova 9 Prague 6 Czech Republic

Production level software applications consist of thousands lines of source code. Although, the "main information" is captured by a small amount of code, it must be restated and extended on multiple places as it is used for interaction among components or for user interface visualization. Restated information leads to code dependency, complex maintenance efforts and increased potential for errors. Even in modern frameworks it is a common practice to restate and enhance information among components. In this paper we suggest that the main information is captured only once and components that need to restate it are generated from the machine-driven source code inspection. In this approach inspection gathers information that is supplied to extension components in the transformation process. Extension components are reused throughout the transformation and thus farther reduce duplication. Benefits of the approach are reduction of duplicates, error and inconsistency avoidance and reduced efforts in development and maintenance.

关键词： Maintenance, Code inspection, Model-driven development

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Free Roll Decay Modeling of a Trimaran Based on Least Square Support Vector Machine

Free Roll Decay Modeling of a Trimaran Based on Least Square...

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OCEANS Conference

作者： Jinlong Li Songlin Yang Shuo Pang National Key Lab of AUV Technology Harbin Engineering University School of Naval Architecture and Ocean Engineering Jiangsu University of Science and Technology Dept. of Electrical Computer Software Systems Engineering Embry-Riddle Aeronautical University

ISBN: (纸本)9781467308298

A trimaran is a multihulled boat consisting of a main hull and two smaller outrigger hulls, attached to the main hull with lateral struts. There have been many studies highlighting that a trimaran takes many advantages over other types of hulls especially the roll performance, because of the greater resistance to rolling that the outrigger hulls offer. In order to study the rolling motion of a trimaran, an accurate roll motion model is needed. The rolling motion of a trimaran is inherently nonlinear due to both nonlinearities in the restoring moment and damping moment. This paper presents an estimation method to predict the linear and nonlinear roll damping parameters based on free roll decay experiments of a trimaran, whose outrigger hulls are movable both along the longitudinal and transverse direction. The estimation method is based on least square support vector regression (LS-SVR) theory. In order to verify the performance of this new estimation method, the least square (LS) estimation method is also applied to identify the parameters. Both methods show satisfying performances, however models generated by LS-SVR shows less accumulated errors than models generated by LS.

关键词： Trimaran Free roll decay Support vector regression Least square

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Do data dependencies in source code complement call dependencies for understanding requirements traceability?

Do data dependencies in source code complement call dependen...

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International Conference on software Maintenance (ICSM)

作者： Hongyu Kuang Patrick Mäder Hao Hu Achraf Ghabi LiGuo Huang Lv Jian Alexander Egyed State Key Lab for Novel Software Technology Nanjing University Nanjing Jiangsu China Institute of Systems Engineering and Automation Johannes Kepler University Linz Austria Dept. of Computer Science and Engineering Southern Methodist University Dallas TX USA

It is common practice for requirements traceability research to consider method call dependencies within the source code (e.g., fan-in/fan-out analyses). However, current approaches largely ignore the role of data. The question this paper investigates is whether data dependencies have similar relationships to requirements as do call dependencies. For example, if two methods do not call one another, but do have access to the same data then is this information relevant? We formulated several research questions and validated them on three large software systems, covering about 120 KLOC. Our findings are that data relationships are roughly equally relevant to understanding the relationship to requirements traces than calling dependencies. However, most interestingly, our analyses show that data dependencies complement call dependencies. These findings have strong implications on all forms of code understanding, including trace capture, maintenance, and validation techniques (e.g., information retrieval).

关键词： Java Servers software systems Conferences software maintenance Video on demand Motion pictures

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Practical privacy for value-added applications in vehicular ad hoc networks 5th

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5th International Conference on Internet and Distributed Computing Systems, IDCS 2012

作者： Zhang, Lei Wu, Qianhong Qin, Bo Domingo-Ferrer, Josep Shanghai Key Laboratory of Trustworthy Computing Software Engineering Institute East China Normal University Shanghai China UNESCO Chair in Data Privacy Dept. of Comp. Eng. and Maths Universitat Rovira i Virgili TarragonaCatalonia Spain Key Lab. of Aerospace Information Security and Trusted Computing Ministry of Education Wuhan University School of Computer China Department of Maths School of Science Xi’an University of Technology China

ISBN: (纸本)9783642348822

Advances in mobile networking and information processing technologies have triggered vehicular ad hoc networks (VANETs) for traffic safety and value-added applications. Most efforts have been made to address the security concerns while little work has been done to investigate security and privacy for value-added applications in VANETs. To fill this gap, we propose a value-added application, specifically, a security and privacy preserving location-based service (LBS) scheme for VANETs. For each LBS transaction, the scheme provides authentication, integrity and non-repudiation for both the service provider and the user. A user can obtain the service in an anonymous way and hence user privacy is well protected. However, a tracing procedure can be invoked to find malicious users, thereby efficiently preventing users from abusing the anonymity provided by the system. © Springer-Verlag Berlin Heidelberg 2012.

关键词： Location based services

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VPDSL: A DSL for software in the Loop Simulations Covering Material Flow

VPDSL: A DSL for Software in the Loop Simulations Covering M...

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IEEE International Conference on engineering of Complex computer Systems

作者： Istvan Nagy Loek Cleophas Mark van den Br Luc Engelen Liviu Raulea Ernest Xavier Lobo Mithun ASML Veldhoven AH Netherlands Technische Universiteit Eindhoven Eindhoven Noord-Brabant NL Eindhoven University of Technology Software Engineering & Technology Group Dept. of Math. and Computer Science Eindhoven MB Netherlands ASML Veldhoven Netherlands

We present an approach to model hardware configurations of complex manufacturing systems such as ASML's lithography machines. These hardware configurations consist of actuator and sensor elements which are controlled by system software that consists of over 35 million lines of code. To minimize the cost of testing and system integration, software simulators of hardware configurations are used-acting as virtual hardware platforms on which the real control software can be executed and tested. An important aspect in such simulation and testing is material flow (specifically wafer flow) in the machine. To support the effective and efficient realization of simulators covering material flow, we defined a domain specific language (DSL) for modelling the hardware configurations to be simulated, and used a model-driven engineering approach to generate the software components implementing the simulators. The DSL can be used to specify not only nominal (i.e. good weather) behaviour but also simulation based fault injection scenarios. The overall approach reduces the cost of early hardware-software integration and enables simulating scenarios that cannot be executed on real machines because they are difficult or hazardous to carry out.

关键词： Hardware Semiconductor device modeling software Unified modeling language Robot sensing systems DSL

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A novel fall activity recognition method for wireless sensor networks

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International Journal of u- and e- Service, science and Technology 2012年第4期5卷 1-14页

作者： Wang, Jin Zhang, Zhongqi Zheng, Yuhui Wu, Menglin Kim, Jeong-Uk School of computer and software Nanjing University of information science and technology Nanjing 210044 China College of Electronics and Information Engineering Nanjing University of Technology Nanjing 211816 China Dept. of Energy Grid Sangmyung University Seoul 110-743 Korea Republic of

Healthcare targeted for home activity is playing an important role in our daily lives as the number of elderly person is increasing sharply. Researches pointed out that one third of 65-and-over aged person fall per-year. Some detection related work made use of accelerometers or gyroscopes, some use passive infrared or acoustic sensors. But there were some false alarms. Falls can be an unpredicted and dangerous event. A system based on wireless sensor networks to detect the falls for old and resident was proposed in this paper. We provided a method to minimize the false alarm rate of fall detection as well. Besides, we can detect falls that did not trigger the alarm which was intervened by outside forces.

关键词： Wireless sensor networks

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Data, health, and algorithmics: Computational challenges for biomedicine 11

Data, health, and algorithmics: Computational challenges for...

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20th ACM Conference on Information and Knowledge Management, CIKM'11

作者： Zobel, Justin Dept. of Computer Science and Software Engineering NICTA University of Melbourne Australia

ISBN: (纸本)9781450307178

In the decade following the completion of the Human Genome Project in 2000, the cost of sequencing DNA fell by a factor of around a million, and continues to fall. Applications of sequencing in health include precise diagnosis of infection and disease, lifestyle management, and development of highly targeted treatments. However, the volume and complexity of the data produced by these technologies presents a severe computational challenge. Breakthroughs in methods for search, storage, and analysis are required to keep pace with the flow of data, and to make use of the changes in biomedical knowledge that these technologies are creating. This keynote is an overview of some of these technologies and the new computational obstacles they have engendered, and reviews examples of algorithmic innovations and approaches currently being explored. These illustrate both the kinds of solutions that are required and the challenges that must be addressed to allow this data to be fully exploited. © 2011 Author.

关键词： Digital storage

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