ppxscal/embedding_network huggingface dataset:
Vcast on facebook: bridging social and similarity networks
Authors: Francesca Carmagnola, Andrea Loffredo, Giorgio Berardi
Venue: Proceedings of the 20th ACM conference on Hypertext and hypermedia (2009)

Focusing on Personal Video Recorder, the paper presents an environment to support users in choosing which TV programs register through recommendations based on user-to-user similarity. Recommendations are presented to users in a Facebook application which is double aimed: on the one hand, it allows to collect user's feedback on the recommended items; on the other hand, it allows to define a social network-based users similarity which is exploited to optimize the recommendation process.
Joint scheduling and power control for multiclass users in CDMA wireless ad hoc networks
Authors: Rekha Patil, A. Damodaram
Venue: Proceedings of the 2nd conference on European computing conference (2008)

In this paper, we develop a cross-layer based joint algorithm for power control and scheduling. We applied the algorithm in CDMA wireless adhoc networks to determine the optimum set of admissible users with optimum transmitting power level, so as to minimize the interference level and call rejection rate. The multiple access problem is solved via two alternating phases, namely scheduling and power control. We introduce the notion of power control as part of a contention-based multiple access protocol that characterizes successful transmissions depending on a set of signal-to-interference-and-noise ratio (SINR) constraints (which directly translates to quality of service (QoS) constraints on the bit-error rate (BER) at individual receivers). The scheduling algorithm is essential to admit the transmissions of static as well as mobile users of multi service classes, in order to eliminate strong levels of interference that cannot be overcome by power control. By simulation experiments, we evaluate the performance of our algorithm in a set of admissible and nonadmissible users and show that power control algorithm converges for a set of admissible users.
An ant based algorithm for task allocation in large-scale and dynamic multiagent scenarios
Authors: Fernando dos Santos, Ana L.C. Bazzan
Venue: Proceedings of the 11th Annual conference on Genetic and evolutionary computation (2009)

This paper addresses the problem of multiagent task allocation in extreme teams. An extreme team is composed by a large number of agents with overlapping functionality operating in dynamic environments with possible inter-task constraints. We present eXtreme-Ants, an approximate algorithm for task allocation in extreme teams. The algorithm is inspired by the division of labor in social insects and in the process of recruitment for cooperative transport observed in ant colonies. Division of labor offers fast and efficient decision-making, while the recruitment ensures the allocation of tasks that require simultaneous execution. We compare eXtreme-Ants with two other algorithms for task allocation in extreme teams and we show that it achieves balanced efficiency regarding quality of the solution, communication, and computational effort.
Microcontrollers: Fundamentals and Applications with PIC, 1st edition
Authors: Fernando E. Valdes-Perez, Ramon Pallas-Areny
Venue:  (2009)

While the official documentation provided for the PIC family from Microchip is extensive, it can also be overwhelming. This book gives users the information necessary to understand the architecture and the programming of microcontrollers. Each topic is described using a reader-centered, top-bottom approach. First, the authors describe the concepts that are common to any microcontroller. Each of the topics is then detailed for PIC microcontrollers. Practical applications supplement each topic to provide further clarity. This book does not limit itself to a digital view of microcontrollers. Instead, it includes aspects of analog signals such as the acquisition and processing of external analog signals.
Top-k generation of integrated schemas based on directed and weighted correspondences
Authors: Ahmed Radwan, Lucian Popa, Ioana R. Stanoi, Akmal Younis
Venue: Proceedings of the 35th SIGMOD international conference on Management of data (2009)

Schema integration is the problem of creating a unified target schema based on a set of existing source schemas and based on a set of correspondences that are the result of matching the source schemas. Previous methods for schema integration rely on the exploration, implicit or explicit, of the multiple design choices that are possible for the integrated schema. Such exploration relies heavily on user interaction; thus, it is time consuming and labor intensive. Furthermore, previous methods have ignored the additional information that typically results from the schema matching process, that is, the weights and in some cases the directions that are associated with the correspondences. In this paper, we propose a more automatic approach to schema integration that is based on the use of directed and weighted correspondences between the concepts that appear in the source schemas. A key component of our approach is a novel top-k ranking algorithm for the automatic generation of the best candidate schemas. The algorithm gives more weight to schemas that combine the concepts with higher similarity or coverage. Thus, the algorithm makes certain decisions that otherwise would likely be taken by a human expert. We show that the algorithm runs in polynomial time and moreover has good performance in practice.
An investigation in applying image retrieval techniques to X-ray engineering pictures
Authors: Raoul Pascal Pein, Joan Lu, John Birger Stav, Miro Uran
Venue: Proceedings of the 8th WSEAS international conference on Artificial intelligence, knowledge engineering and data bases (2009)

Using image retrieval techniques in analysing Non-destructive testing reults is a new challenge in both computing science and engineering applications. Objective of this research is to develop an image retrieval system to analyse X-ray images for welding industry. The content based image retrieval has been used in this investigation, particularly in feature vector paradigm and similarity as well as detailed analysis towards single defects. It is found that X-ray images can be digitally analysed qualitatively and quantitatively easily. It concludes that the use of existing CBIR techniques can provide a platform to quickly develop new image analysis tools.
MAMA: An architecture for interactive musical agents
Authors: David Murray-Rust, Alan Smaill, Michael Edwards
Venue: Proceeding of the 2006 conference on ECAI 2006: 17th European Conference on Artificial Intelligence August 29 -- September 1, 2006, Riva del Garda, Italy (2006)

In this paper, we present MAMA ---an architecture for interactive musical agents. This system uses a theory of Musical Acts, based on Speech Act Theory to support the agents interaction. We discuss the basics of a representation language which these agents can use to represent and reason about music. We present a case study system based on these ideas, and discuss its ability to support distributed execution of a minimalist score. Audio recordings of the system are available at http://homepages.inf.ed.ac.uk/s0239182/MAMA
Neural networks and statistical tests for detection of population expansion
Authors: Krzysztof A. Cyran, Dariusz Myszor
Venue: Proceedings of the 2nd conference on European computing conference (2008)

The purpose of this article is to present population growth detection method based on artificial neural networks approach. Our studies showed that properly trained artificial neural networks provide better power in detection of population growth than currently available methods based on microsatellites (imbalance index). We created set of samples, using forward based simulation methods. Samples represented populations that had undergone growths of different sizes and intensities. We created and trained series of different artificial neural networks and checked power of new classifiers. We compared powers of network classifiers with powers obtained by methods based on microsatellites - imbalance index.
A modified extragradient method for inverse-monotone operators in Banach spaces
Authors: Liwei Li, W. Song
Venue: Journal of Global Optimization (2009)

We introduce an iterative procedure for finding a point in the zero set (a solution to 0 ¿ A(v) and v ¿ C) of an inverse-monotone or inverse strongly-monotone operator A on a nonempty closed convex subset C in a uniformly smooth and uniformly convex Banach space. We establish weak convergence results under suitable assumptions.
Lisp
Authors: Didier Verna, Charlotte Herzeel, Christophe Rhodes, Hans Hübner
Venue: Object-Oriented Technology. ECOOP 2008 Workshop Reader: ECOOP 2008 Workshops Paphos, Cyprus, July 7-11, 2008 Final Reports (2008)

This report covers the activities of the 5th European Lisp and Scheme Workshop. We introduce the motivation for a workshop focusing on languages in the Lisp family, and mention relevant organizational aspects. We summarize the presentations and discussions, including Mark Tarver and Rich Hickey's keynote talks, and provide pointers to related work and events.
Trust negotiation: authorization for virtual organizations
Authors: M. Winslett, Adam J. Lee, Kenneth J. Perano
Venue: Proceedings of the 5th Annual Workshop on Cyber Security and Information Intelligence Research: Cyber Security and Information Intelligence Challenges and Strategies (2009)

Trust negotiation is an authorization approach for open distributed systems, such as dynamic coalitions and other types of virtual organizations. Under the trust negotiation approach to authorization, every resource that might be shared within the coalition is protected by an access policy that describes the attributes of those qualified to access it (e.g., employer, job title, role, age). Each party collects digital credentials, such as X.509 attribute certificates or SAML assertions, from credential issuers who can attest to that party's attributes. At run time, a resource owner and potential client exchange information on their access policies and attributes, to determine whether the client possesses the attributes necessary to gain access, and vice versa. Trust negotiation has a firm theoretical foundation and a number of freely available implementations. In this paper, we argue that trust negotiation is ready for a trial deployment in a real-world application. We describe the software available for a deployment, including the flexible TrustBuilder2 framework for experimenting with trust negotiation runtime systems, and the CLOUSEAU compliance checker, which can quickly determine whether a set of credentials complies with a particular policy. We also describe the Traust approach for letting legacy applications take advantage of trust negotiation.
The development of a web-based training component of an orientation program for newly hired automobile sales consultants
Authors: Keith Johansen
Venue:  (2008)

Organizations face increasing competition in today's global economy. One such industry especially challenged is the U.S. automotive industry. Effective and efficient orientation of new sales consultants trained to meet the demands of today's customers in a global market place is a necessity for U.S. automobile dealerships who wish to remain competitive. The purpose of this study was to design, develop, and validate the Web-based-training (WBT) component of a redesigned, blended learning, orientation program for newly hired automobile sales consultants using minimal resources. The study used a developmental research methodology with formative and summative committees to complete and validate the WBT portion of a sales consultant orientation program. A formative committee, consisting of a cross-functional team of dealership employees, met in a series of meetings over 6 weeks to develop and design the WBT program and program learning delivery process. Seven of the 12 orientation program tasks were identified by the committee as best trained via Web-based learning. Of the existing WBT courses, 29 were selected for inclusion in the WBT portion of the revised dealership orientation program. A summative committee, consisting of external industry experts, used an industry-wide perspective to consider the potential usefulness of the WBT program for automobile sales consultants. The external summative committee unanimously agreed that the WBT program has potential usefulness. The use of WBT for a majority of key performance tasks for newly hired automobile sales consultants may provide the opportunity for dealerships to provide required training at a modest cost in an effective manner.
Distributed Genetic Algorithm with Multiple Populations Using Multi-agent
Authors: Jung-Sook Kim
Venue: Proceedings of the 4th International Symposium on High Performance Computing (2009)

This paper designs a distributed genetic algorithm in order to reduce the execution time and obtain more near optimal using master-slave multi-agent model for the TSP. Distributed genetic algorithms with multiple populations are difficult to configure because they are controlled by many parameters that affect their efficiency and accuracy. Among other things, one must decide the number and the size of the populations (demes), the rate of migration, the frequency of migrations, and the destination of the migrants. In this paper, I develop two dynamic migration window methods, increasing dynamic window and random dynamic window, that control the size and the frequency of migrations. In addition to this, I design new genetic migration policy that selects the destination of the migrants among the slave agents. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
Dynamic reconfiguration of middleware for ubiquitous computing
Authors: Antonio Corradi, Enrico Lodolo, Stefano Monti, Samuele Pasini
Venue: Proceedings of the 3rd international workshop on Adaptive and dependable mobile ubiquitous systems (2009)

Ubiquitous Computing scenarios call for middleware support solutions able to cope with changes in environmental conditions and user requirements. Changes obviously greatly impact on the application logic the middleware is able to carry out (content/service adaptation, multichannel content delivery, mobility management and so on), but also on the non-functional support logic middleware exploits to enforce the application logic itself (e.g., naming, persistence, communication infrastructures). This work proposes a novel middleware for Ubiquitous Computing scenarios that is able to reconfigure both application and non-functional features, in order to cope with increasingly complex and heterogeneous ubiquitous and pervasive landscapes.
Mathematical model of temperature distribution field in electrical discharge machining of ceramics composites
Authors: Constantin Opran, Mihaiela Iliescu
Venue: Proceedings of the 10th WSEAS international conference on Mathematical and computational methods in science and engineering (2008)

Composite ceramics materials have known an increasing development, because of their important characteristics and advantages. Among them, an important role is that of electro-conductive structural ceramics composites - CCsEc-Al2O3/TiC. In order to obtain a part with specified shape and dimensions, made of this material type, most of the times a massive electrode electrical discharge machining - by shape copying is needed - PPE-EmCo. This paper presents a theoretical study on temperature distribution field, for the previously mentioned machining procedure, carried on in order to get a mathematical model of temperature distribution. Once obtained, the theoretical assumption should be validated by experiments.
Total-Variation Based Piecewise Affine Regularization
Authors: Jing Yuan, Christoph Schnörr, Gabriele Steidl
Venue: Proceedings of the Second International Conference on Scale Space and Variational Methods in Computer Vision (2009)

In this paper, we introduce a novel second-order regularizer, the Affine Total-Variation term, to capture the geometry of piecewise affine functions. The approach can be characterized by two convex decompositions of a given image into piecewise affine structure and texture and noise, respectively. A convergent multiplier-based method is presented for computing a global optimum by computationally cheap iterative steps. Experiments with images and vector fields validate our approach and illustrate the difference to classical TV denoising and decomposition.
Design Method for Learning Games Based on Key Structure and Behavior
Authors: Takanobu Umetsu, Tsukasa Hirashima
Venue: Proceeding of the 2005 conference on Towards Sustainable and Scalable Educational Innovations Informed by the Learning Sciences: Sharing Good Practices of Research, Experimentation and Innovation (2005)

Learning games are promising to realize highly motivated learning. Developing effective and high-motivating learning games, the integration of learning and games is the main issue. In order to develop the learning games easier, we propose Partial Exchange Method for the integration. The method is a way to transform an existing game into a learning game. In the method, a game is divided into an object structure and a rule structure, and by exchanging the object structure for similar one, we can develop a new game. In the new game, a player must use the new structure. If giving exercises to use the new structure is a learning activity, the new game is a learning game. Developing a good learning game by the exchanging, it is important to keep attractiveness of the original game. We think that the attractiveness of a game is included in typical playing behavior in the game and to preserve the behavior is necessary to keep the attractiveness. We call the typical behavior “key behavior”. The key behavior depends on a part of the game structure. We call the part of the game structure “key structure”. Based on this consideration, in order to keep attractiveness of a game, it is necessary to find key structure, and then, to preserve the key structure in the exchange of object structure. This paper describes an outline of the method.
Sliding mode control for polytopic differential inclusion systems
Authors: Leipo Liu, Zhengzhi Han, Xiushan Cai
Venue: Mathematics and Computers in Simulation (2009)

The stabilization problem of polytopic differential inclusion (PDI) systems is investigated by using sliding mode control. Sliding surface is designed and sufficient conditions for asymptotic stability of sliding mode dynamics are derived. A novel feedback law is established to make the state of system reach the sliding surface in a finite time. Finally, an example is given to illustrate the validity of the proposed design.
Automated support for managing feature requests in open forums
Authors: Jane Cleland-Huang, Horatiu Dumitru, Chuan Duan, Carlos Castro-Herrera
Venue: Communications of the ACM (2009)

The result is stable, focused, dynamic discussion threads that avoid redundant ideas and engage thousands of stakeholders.
Flexible structural protein alignment by a sequence of local transformations
Authors: Jairo Rocha, Joan Segura, Richard C. Wilson, Swagata Dasgupta
Venue: Bioinformatics (2009)

Motivation: Throughout evolution, homologous proteins have common regions that stay semi-rigid relative to each other and other parts that vary in a more noticeable way. In order to compare the increasing number of structures in the PDB, flexible geometrical alignments are needed, that are reliable and easy to use. Results: We present a protein structure alignment method whose main feature is the ability to consider different rigid transformations at different sites, allowing for deformations beyond a global rigid transformation. The performance of the method is comparable with that of the best ones from 10 aligners tested, regarding both the quality of the alignments with respect to hand curated ones, and the classification ability. An analysis of some structure pairs from the literature that need to be matched in a flexible fashion are shown. The use of a series of local transformations can be exported to other classifiers, and a future golden protein similarity measure could benefit from it. Availability: A public server for the program is available at http://dmi.uib.es/ProtDeform/. Contact: jairo@uib.es Supplementary information: All data used, results and examples are available at http://dmi.uib.es/people/jairo/bio/ProtDeform.Supplementary data are available at Bioinformatics online.
VICTORY: a 3D search engine over P2P and wireless P2P networks
Authors: Petros Daras, Dimitrios Tzovaras, Stefan Dobravec, Jernej Trnkoczy, Andrea Sanna, Gianluca Paravati, Ralph Traphoener, Jasmin Franz, Timotheos Kastrinogiannis, Christos Malavazos, Nikiforos Ploskas, Mathias Gumz, Konstantina Geramani, Gerd-Joachim Wintterle
Venue: Proceedings of the 4th Annual International Conference on Wireless Internet (2008)

Our information society is being overflowed with digital data of various kinds. In order for the users to find relevant information, novel digital repositories should provide search mechanisms that are both content and context based, facilitating the formulation of queries and enabling search by example using 3D/2D objects, sketches, etc. At the same time the repositories should scale to the growing number of users. This paper presents the main achievements of the IST project VICTORY that aims at developing an innovative distributed digital repository introducing novel search, retrieval, and visualization capabilities to a desktop and mobile P2P networks.
Trends in Embedded Software Engineering
Authors: Peter Liggesmeyer, Mario Trapp
Venue: IEEE Software (2009)

Software's importance in the development of embedded systems has been growing rapidly over the last 20 years. Because of current embedded systems' complexity, they require sophisticated engineering methods for systematically developing high-quality software. Embedded software development differs from IT system development in several ways. For example, IT systems developers can use standard hardware and software platforms and don't face the resource requirements that embedded systems developers must take into account. To meet embedded software's extrafunctional requirements, embedded systems development is shifting from programming to model-driven development. Another important trend is the emphasis on the quality assurance of safety-related systems.
Integrating Dirichlet reputation into usage control
Authors: Li Yang, Alma Cemerlic
Venue: Proceedings of the 5th Annual Workshop on Cyber Security and Information Intelligence Research: Cyber Security and Information Intelligence Challenges and Strategies (2009)

With new technology such as cloud computing emerging, parties communicate directly with each other to exchange files or execute transaction in a peer-to-peer fashion. Therefore, peers have to manage the risks involved in the collaboration when prior experience and knowledge about each other are imcomplete. The behaviors of a party are undertain and attributes of a party, requested objects, and context information are mutable. To address above changllenges, we integrate Dirichlet reputation into usage control to manage authentication and authorization in a collaborative enviornment. We added moving window mechanism to the Dirichlet reputation evaluation. Moving windows not only help to adjust our responsiveness of our system to changes in peers' behaviors, but also allow us to use different strategies to react to different group of peers. Our system offers a way to handle uncertainty and mutability by dynamically revoke granted privileges from a party due to low reputation or changed attributes and context information.