ppxscal/embedding_network huggingface dataset:
The Agent in Two-sided Market A Study of E-payment Industry
Authors: Weijun Tang, Hongmin Chen, Li Xu
Venue: Proceedings of the 2009 International Conference on Computer Engineering and Technology - Volume 02 (2009)

This paper analyzed the basic model for the e-payment industry with the agent under the guidance of Two-sided Market, and introduced the 2-stage game of adoption strategies for both the Platform and the Buyer. Then the authors made a deep through case study for three dimensions: speed improving, convenience improving and safety improving, mainly based on the functions of the agents in e-payment application. This paper was expected to achieve the fundamental descriptions for the agents’ practical effects via the Two-sided Market perspective.
Weapon selection using the AHP and TOPSIS methods under fuzzy environment
Authors: Metin Dağdeviren, Serkan Yavuz, Nevzat Kılınç
Venue: Expert Systems with Applications: An International Journal (2009)

The weapon selection problem is a strategic issue and has a significant impact on the efficiency of defense systems. On the other hand, selecting the optimal weapon among many alternatives is a multi-criteria decision-making (MCDM) problem. This paper develops an evaluation model based on the analytic hierarchy process (AHP) and the technique for order performance by similarity to ideal solution (TOPSIS), to help the actors in defence industries for the selection of optimal weapon in a fuzzy environment where the vagueness and subjectivity are handled with linguistic values parameterized by triangular fuzzy numbers. The AHP is used to analyze the structure of the weapon selection problem and to determine weights of the criteria, and fuzzy TOPSIS method is used to obtain final ranking. A real world application is conducted to illustrate the utilization of the model for the weapon selection problem. The application could be interpreted as demonstrating the effectiveness and feasibility of the proposed model.
An intuitive model of perceptual grouping for HCI design
Authors: Ruth Rosenholtz, Nathaniel R. Twarog, Nadja Schinkel-Bielefeld, Martin Wattenberg
Venue: Proceedings of the 27th international conference on Human factors in computing systems (2009)

Understanding and exploiting the abilities of the human visual system is an important part of the design of usable user interfaces and information visualizations. Good design enables quick, easy and veridical perception of key components of that design. An important facet of human vision is its ability to seemingly effortlessly perform "perceptual organization; it transforms individual feature estimates into perception of coherent regions, structures, and objects. We perceive regions grouped by proximity and feature similarity, grouping of curves by good continuation, and grouping of regions of coherent texture. In this paper, we discuss a simple model for a broad range of perceptual grouping phenomena. It takes as input an arbitrary image, and returns a structure describing the predicted visual organization of the image. We demonstrate that this model can capture aspects of traditional design rules, and predicts visual percepts in classic perceptual grouping displays.
Bipartite density of triangle-free subcubic graphs
Authors: Xuding Zhu
Venue: Discrete Applied Mathematics (2009)

A graph is subcubic if its maximum degree is at most 3. The bipartite density of a graph G is defined as b(G)=max{|E(B)|/|E(G)|:B is a bipartite subgraph of G}. It was conjectured by Bondy and Locke that if G is a triangle-free subcubic graph, then b(G)>=45 and equality holds only if G is in a list of seven small graphs. The conjecture has been confirmed recently by Xu and Yu. This note gives a shorter proof of this result.
Software transactional distributed shared memory
Authors: Alokika Dash, Brian Demsky
Venue: ACM SIGPLAN Notices (2009)

We have developed a transaction-based approach to distributed shared memory(DSM) that supports object caching and generates path expression prefetches. A path expression specifies a path through the heap that traverses the objects to be prefetched. To our knowledge, this is the first prefetching approach that can prefetch objects whose addresses have not been computed or predicted. Our DSM uses both prefetching and caching of remote objects to hide network latency while relying on the two-phase transaction commit mechanism to preserve the simple transactional consistency model that we present to the developer. We have evaluated this approach on a matrix multiply benchmark. We have found that our approach enables to effectively utilize multiple machines in a cluster and also benefit from prefetching and caching of objects.
A model for policy interventions in support of electronic governance
Authors: Radha Chauhan, Elsa Estevez, Tomasz Janowski
Venue: Proceedings of the 2nd International Conference on Theory and Practice of Electronic Governance (2008)

A policy framework is the backbone of public governance and a major contributor to its quality. Such a framework is particularly required in the areas where public governance seeks technology support, as is the case for Electronic Governance (e-Governance). This paper explains the need to put in place a comprehensive set of policies, and presents a model for policy interventions supporting e-Governance development. The model comprises a classification of policies based on their nature and applicability, and describes core areas for which policy interventions are required. The paper also presents three major scenarios for using the model: (1) a tool to help design and analyze critical policy interventions by developing and transition nations, (2) a template to understand different alternatives for interventions, and (3) a checklist to review all niche areas to be regulated. In particular, applicability of the model in India is discussed.
A PK-SIM card based end-to-end security framework for SMS
Authors: He Rongyu, Zhao Guolei, Chang Chaowen, Xie Hui, Qin Xi, Qin Zheng
Venue: Computer Standards Interfaces (2009)

Since the first SMS (Short Message Services) message was sent in the UK in 1992, the SMS has become a mass communication tool and has been broadly used in mobile business applications. But the security issue of the SMS has often been considered as a crucial barrier to its application in many fields that need strong authentication and confidentiality, such as mobile-commerce. The Subscriber Identity Module (SIM) inside mobile phones is a tamper resistant device which contains strong authentication mechanism and has been used in remote user authentication system, e.g. WIM card in Wireless Application Protocol (WAP). In this contribution, we design and realize a secure SIM card, named PK-SIM card, which is a standard SIM card with additional PKI functionality; based on the PK-SIM card, we present a security framework offering solutions for the development of secure mobile business applications using SMS as bearer. The security framework consists of a client device, in which a PK-SIM card is used to store security credentials, a Secure Access Gateway (SAG) which is used to receive and send secure SMS messages, a trusted third-party, Certification Authority (CA), which provides a public-key certification service and a Mobile Operator which provides the communication infrastructure for the SMS. Then we propose an authentication and session key distribution protocol which provides end-to-end security between the PK-SIM card and the SAG, and give a formal security analysis to the proposed protocol based on BAN authentication logic. Lastly, we provide a typical application of the security framework in Mobile Police Information System. The evaluations of the system have proved that the security framework is suitable for actual needs both in speed and security.
Forumclinic: An Interactive Program for Patients with Chronic Illnesses
Authors: I. Grau, J. Gene-Badia, E. Sánchez Freire, M. Bernardo, M. deSemir
Venue: Proceedings of the 2009 International Conference on eHealth, Telemedicine, and Social Medicine (2009)

Forumclinic is a set of audiovisual material (DVDs and Website) in both Spanish and Catalan that was launched in January 2007 with the purpose of improving the quality of life of chronically ill patients. Based on the premise that by having a better understanding of their disease patients can become more autonomous, the project aims to encourage patient involvement in the clinical decision-making process (1) hand in hand with the health care team. Priority has been given to diseases of high prevalence and wide social impact. Conclusion: The growth rate that can be seen in visits to the web, as well as in posts to the forums together with the high degree of penetration that the DVD has achieved, confirm that forumclinic has proved to be a useful tool for bidirectional communication between health professionals and patients, as well as for disseminating scientific knowledge to the public in general, dealing with both scientific findings and the emotional aspects of health care.
Improved cell growth by Bio-Oss/PLA scaffolds for use as a bone substitute
Authors: Annalia Asti, Livia Visai, Rossella Dorati, Bice Conti, Enrica Saino, Sonia Sbarra, Giulia Gastaldi, Francesco Benazzo
Venue: Journal of Visualization (2008)

The objective of this study was to investigate the surface modification of a natural bone substitute, Bio-Oss, coated with a synthetic polymer poly-D,L-lactide (PLA), in order to improve cell growth. Bio-Oss is a natural bone substitute made of the mineralized portion of bovine bone. The material is used mainly to fill bone defects in periodontal and maxillofacial surgery and permit reossification. Poly-&plusmn;-hydroxyacids such as polylactic acid are receiving an increasing attention due to their ability to retain a great quantity of water, good biocompatibility, low interfacial tension, and minimal mechanical and frictional irritation. All of these features are appealing from the perspective of bioenvironmental mimicking. The human osteosarcoma cell line SAOS-2 was added to the top of scaffolds uncoated or coated with PLA and incubated at 37&deg; in 5% CO$_{2}$ for 15 days. PLA-coated scaffolds improved cell growth. Polymer degradation behaviour, extraction and measurement of the extracellular matrix proteins of the cultured scaffolds (such as decorin, fibronectin osteocalcin, osteonectin, osteopontin and type-I and type-III collagen), immunolocalization of bone proteins and morphological analysis of the scaffolds confirmed the bioactive properties of Bio-Oss/PLA4M suggesting that it could be a valuable grafting material.
A Novel Robust 3D Mesh Watermarking Ensuring the Human Visual System
Authors: Dazhi Han, Xingqiang Yang, Caiming Zhang
Venue: Proceedings of the 2009 Second International Workshop on Knowledge Discovery and Data Mining (2009)

the main objective of 3D mesh watermarking is to maximize the watermark strength while minimizing the visual distortion. In this paper, we propose a novel 3D mesh watermarking based on the human visual system and mesh curvature. We analyze the region’s mean curvature and fluctuation of curvature, and then choose the appropriate regions with high visual masking degree, in order to embed the watermark by using the Interpolation Algorithm. The experimental results show that the watermark is capacious, invisible and robust against various attacks.
Load Balance Scheduling Algorithm for CMP Architecture
Authors: Qingsong Shi, Tianzhou Chen, Wei Hu, Changbin Huang
Venue: Proceedings of the 2009 International Conference on Electronic Computer Technology (2009)

Chip MultiProcessor (CMP) has been the main stream in microprocessor design. Shared on-chip L2 caches are widely used in processors with homogeneous CMP architecture. In the paper, we propose a scheduling algorithm for such processors and the shared L2 caches are taken into account in this algorithm. First, the processor cores on chip will be divided into different core groups. The scheduling domain is also constructed according to these core groups. And then the load vectors for load balance are defined. Then a scheduling algorithm is designed and implemented for load balance on CMP architecture. We have compared our algorithm with the CMP scheduling algorithm of Linux. The experimental results show that, when there are multi-threads in execution, the load balancing between processors is achieved by our algorithm, the total execution time is reduced by 3%, and the miss rate of L2 cache is reduced by 0.2% as well.
Adaptive load diffusion for stream joins
Authors: Xiaohui Gu, Philip S. Yu
Venue: Proceedings of the ACM/IFIP/USENIX 2005 International Conference on Middleware (2005)

Data stream processing has become increasingly important as many emerging applications call for sophisticated realtime processing over data streams, such as stock trading surveillance, network traffic monitoring, and sensor data analysis. Stream joins are among the most important stream processing operations, which can be used to detect linkages and correlations between different data streams. One major challenge in processing stream joins is to handle continuous, high-volume, and time-varying data streams under resource constraints. In this paper, we present a novel load diffusion system to enable scalable execution of resource-intensive stream joins using an ensemble of server hosts. The load diffusion is achieved by a simple correlation-aware stream partition algorithm. Different from previous work, the load diffusion system can (1) achieve fine-grained load sharing in the distributed stream processing system; and (2) produce exact query answers without missing any join results or generate duplicate join results. Our experimental results show that the load diffusion scheme can greatly improve the system throughput and achieve more balanced load distribution.
Designing with RFID
Authors: Einar Sneve Martinussen, Timo Arnall
Venue: Proceedings of the 3rd International Conference on Tangible and Embedded Interaction (2009)

Radio Frequency Identification (RFID) is a wireless technology that is emerging in consumer products as a method for input and interaction. Although RFID is relatively well known from a technical perspective, the methods and for designing with RFID are less well understood, particularly the tangible and physical aspects of RFID form. Using a practice-driven design approach we explore the possibilities for richer design of RFID objects in everyday contexts. Through sketching, making and form-explorations we build a visual and physical design vocabulary for RFID forms. This includes properties such as direction, balance, ergonomics and geometry that are communicated through design-focused language and visualisations.
An objects-first approach to teaching introductory software development
Authors: Zaigham Mahmood
Venue: Proceedings of the 12th WSEAS international conference on Computers (2008)

Software development (SD) refers to design and development of software applications. Most educational institutions teach introductory modules in SD using a procedural paradigm and an imperative language. Modules are often delivered in the first semester of the first year of a degree or diploma programme. Whereas, the procedural approach to SD may be considered suitable for teaching programming-in-the-small, it is not entirely appropriate for teaching the principles of programming: there are numerous inherent issues on the approach. This paper discusses the traditional method to teaching SD and suggests an objects-first approach where students adopt a top-down method of learning to develop software. Our model is imperative in nature but introduces functions and modules as basic building blocks for producing software. Thus, students' first programs are written as sequences, selections and iterations of given functions and it is in the later stages of the course, when they write their own modules after they learn the basic constructs of the language. Our method places an emphasis on SD as an engineering activity. This paper also discusses the issues concerning the choice of first programming languages and outlines a complete scheme for teaching a first course in SD.
Procedure guidance for Internet forensics coping with copyright arguments of client-server-based P2P models
Authors: Shiuh-Jeng Wang, Da-Yu Kao, Frank Fu-Yuan Huang
Venue: Computer Standards Interfaces (2009)

Digital technology for transferring and controlling data has made substantial advances in recent years. It is important to protect innovations and to curb the copyright infringements in computer-based systems. Copyright is a legal framework of basic rights, allowing the owner to control or permit someone else to reproduce copyrighted works with commercial value. In recent decades, copyright violations have been moving into the criminal realm. This paper focuses on the procedure guidance of a fictitious P2P model, and discusses whether it contributes to the crime of copyright infringement in dealing with the distribution of digital content. From the perspective of internet forensics, the action research and the whole control mechanism, it is shown that a commercial server has full control over the P2P model.
Security Analysis of DRBG Using HMAC in NIST SP 800-90
Authors: Shoichi Hirose
Venue: Information Security Applications: 9th International Workshop, WISA 2008, Jeju Island, Korea, September 23-25, 2008, Revised Selected Papers (2009)

HMAC_DRBG is a deterministic random bit generator using HMAC specified in NIST SP 800-90. The document claims that HMAC_DRBG is a pseudorandom bit generator if HMAC is a pseudorandom function. However, no proof is given in the document. This article provides a security analysis of HMAC_DRBG and confirms the claim.
Local flux mimetic finite difference methods
Authors: Konstantin Lipnikov, Mikhail Shashkov, Ivan Yotov
Venue: Numerische Mathematik (2009)

We develop a local flux mimetic finite difference method for second order elliptic equations with full tensor coefficients on polyhedral meshes. To approximate the velocity (vector variable), the method uses two degrees of freedom per element edge in two dimensions and n degrees of freedom per n-gonal mesh face in three dimensions. To approximate the pressure (scalar variable), the method uses one degree of freedom per element. A specially chosen quadrature rule for the L 2-product of vector-functions allows for a local flux elimination and reduction of the method to a cell-centered finite difference scheme for the pressure unknowns. Under certain assumptions, first-order convergence is proved for both variables and second-order convergence is proved for the pressure. The assumptions are verified on simplicial meshes for a particular quadrature rule that leads to a symmetric method. For general polyhedral meshes, non-symmetric methods are constructed based on quadrature rules that are shown to satisfy some of the assumptions. Numerical results confirm the theory.
Robust stability of single input fuzzy system for control of industrial plants with time delay
Authors: Snejana Yordanova
Venue: Journal of Intelligent Fuzzy Systems: Applications in Engineering and Technology (2009)

Most industrial plants are complex, nonlinear, time-varying with time delay, difficult to control. The single input fuzzy controllers (SI FCs) are promising in satisfying the high performance demands to the control systems of such plants and ensuring the fuzzy system stability, coping with system nonlinearity, plant model uncertainty and SI FC design. The aim of the present investigation is to derive robust stability requirements for an incremental PI-like SI FC closed loop system that serve the development of a SI FC design method for the control of industrial plants with time delay and model uncertainty. The main contributions are: 1) modification of the Popov stability approach to study the SI FC system stability and to derive design rules; 2) derivation of robust stability criterion for a SI FC system and on its basis development of a SI FC tuning algorithm. The results are applied for the stabilisation of the air temperature in a furnace using MATLAB&trade;. The advantages of the designed SI FC system are assessed in comparison with ordinary PI control system via simulations. The SI FC system preserves stability for a great range of plant uncertainties. The tradeoff is longer settling time of the nominal system transient responses.
Getting inspired!: understanding how and why examples are used in creative design practice
Authors: Scarlett R. Herring, Chia-Chen Chang, Jesse Krantzler, Brian P. Bailey
Venue: Proceedings of the 27th international conference on Human factors in computing systems (2009)

The use of examples serves a critical role in creative design practice, but details of this process remain an enigma. This is problematic for both the understanding of design activity as well as for developing more effective design tools. In this paper, we report results of a study that understands and compares how designers (N=11) utilize, manage, and share examples to support the creative design process. The domains studied were Web, graphic, and product design. Our study shows that examples are a cornerstone of creative practice and are utilized for many reasons throughout the design process. Since examples are pivotal to the success of a project, more effective tools that support retrieval, storage, and dissemination of examples are needed. This paper contributes understanding of the benefits and roles of examples in the design process and implications for the design of more effective tools that support example usage.
A Spatial-Temporal-Scale Registration Approach for Video Copy Detection
Authors: Shi Chen, Tao Wang, Jinqiao Wang, Jianguo Li, Yimin Zhang, Hanqing Lu
Venue: Proceedings of the 9th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing (2008)

Video copy detection is an active research field in copyright control, business intelligence and advertisement monitor etc. The main issues are transformation-invariant feature extraction and robust registration in object level. This paper proposes a novel video copy detection approach based on spatial-temporal-scale registration. In detail, we first build interesting points' trajectories by speeded up robust features (SURF). Then we use an efficient voting based spatial-temporal-scale registration approach to estimate the optimal transformation parameters and achieve the final video copy detection results by propagations of video segments in both spatial-temporal and scale directions. To speed up the detection speed, we use local sensitive hash indexing (LSH) to index trajectories for fast queries of candidate trajectories. Compared with existing approaches, our approach can detect many kinds of copy transformations including cropping, zoom in/out, camcording and re-encoding etc. Extensive experiments on 200 hours of videos demonstrate the effectiveness of our approach.
The Evaluation Index System and Method of Sustainable Uranium Development
Authors: Chenggang Gong, Songlin Liu
Venue: Proceedings of the 2009 Second International Workshop on Knowledge Discovery and Data Mining (2009)

Under the construction of sustainable development index system of uranium, I use factor analysis in the study of the Henan Province in 2000, 2003 and 2006, the uranium resources for sustainable development of the situation. The conclusion is: from the sustainable development in the comprehensive level, the sustainable capacity of uranium resources in Henan Province is showing a growing trend: the economy, the level of resource utilization and environmental protection, and resource endowment and level of intellectual support all have fluctuations to a certain degree.