ppxscal/embedding_network huggingface dataset:
Efficient xpath query processing in native xml databases
Authors: Kam-Fei Wong, Jeffrey Xu Yu
Venue:  (2008)

As XML (eXtensible Markup Language) becomes a universal medium for data exchange over the Internet, efficient XML query processing is now the focus of considerable research and development activities. This thesis describes works toward efficient XML query evaluation and optimization in native XML databases.A XML query can be decomposed to a sequence of structural joins (e.g., parent/child and ancestor/descendant) and content joins. Thus, structural join optimization is a key to improving join-based evaluation. We optimize structural join with two orthogonal methods: partition-based method exploits the spatial specialities of XML encodings by projecting them on a plane; and location-based method improves structural join by accurately pruning all irrelevant nodes, which cannot produce results.XML indexes are widely studied to evaluate XML queries and in particular to accelerate join-based approaches. Index-based approaches outperform join-based approaches (e.g., holistic twig join) if the queries match the index. Existing XML indexes can only support a small set of XML queries because of the varieties in XML query representations. A XML query may involve child-axis only, both child-axis and branches, or additional descendant-or-self-axis but only in the query root. We propose novel indexes to efficiently support a much wider range of XML queries (with /, //, [], *).A general XML index can itself be sizable leading to low efficiency. To alleviate this predicament, frequently asked queries can be indexed by a database system. They are referred to as views. Answering queries using materialized views is always cheaper than evaluating over the base data. Traditional techniques solve this problem by considering only a single view. We approach this problem by exploiting the potential relationships of multiple views, which can be used together to answer a given query. Experiments show that significant performance gain can be achieved from multiple views.
Design of Common Resource Management and Network Simulator in Heterogeneous Radio Access Network Environment
Authors: Jae-Hoon Kim
Venue: Journal of Network and Systems Management (2009)

By the newly emerging radio access technologies, we face the new heterogeneous network environment. Focusing on the co-existence of multiple access networks and the complex service combinations, the wireless service operators should guarantee good quality of services for every user. Thus, the service operators build a new operation framework which combines the existing networks and newly adopted ones. Our objective is finding the optimal heterogeneous network operation framework. We suggest the market-based marginal cost function for evaluating the relative value of resources for each network and develop a whole new heterogeneous network operation framework. To prove the applicability of the proposed operation framework, we build a large-scale JAVA simulator. We can easily test the various service scenarios in heterogeneous network environment by the simulator.
The role of structure rates in the study of company's liquidities and solvability
Authors: Lucian Patrascu, Ioan-Gheorghe Ratiu, Claudia-Georgeta Carstea, Neculai Patrascu
Venue: Proceedings of the 10th WSEAS international conference on Mathematical methods, computational techniques and intelligent systems (2008)

The purpose of the liquidity and solvability rates analysis is to identify the status of the trade company at a given point, in order to prevent its insolvability and to implement the necessary measures for the assurance of the extinguishing of obligations.
Distributed data-parallel computing using a high-level programming language
Authors: Michael Isard, Yuan Yu
Venue: Proceedings of the 35th SIGMOD international conference on Management of data (2009)

The Dryad and DryadLINQ systems offer a new programming model for large scale data-parallel computing. They generalize previous execution environments such as SQL and MapReduce in three ways: by providing a general-purpose distributed execution engine for data-parallel applications; by adopting an expressive data model of strongly typed .NET objects; and by supporting general-purpose imperative and declarative operations on datasets within a traditional high-level programming language. A DryadLINQ program is a sequential program composed of LINQ expressions performing arbitrary side-effect-free operations on datasets, and can be written and debugged using standard .NET development tools. The DryadLINQ system automatically and transparently translates the data-parallel portions of the program into a distributed execution plan which is passed to the Dryad execution platform. Dryad, which has been in continuous operation for several years on production clusters made up of thousands of computers, ensures efficient, reliable execution of this plan on a large compute cluster. This paper describes the programming model, provides a high-level overview of the design and implementation of the Dryad and DryadLINQ systems, and discusses the tradeoffs and connections to parallel and distributed databases.
Broadcom mediaDSP: A Platform for Building Programmable Multicore Video Processors
Authors: Richard Selvaggi, Larry Pearlstein
Venue: IEEE Micro (2009)

Broadcom's mediaDSP technology is a modular and scalable multiprocessor platform that provides the framework for building customized and programmable multicore processors for the video and image processing domain. The mediaDSP platform exploits task-level parallelism and includes architectural elements that support a task-based programming model. Broadcom's BCM35421 processor leverages mediaDSP technology to realize a single-chip, full high definition (FHD) frame rate converter for today's 120 Hz LCD TV sets.
The Agent Reputation and Trust (ART) Testbed Architecture
Authors: Karen K. Fullam, Tomas B. Klos, Guillaume Muller, Jordi Sabater-Mir, Zvi Topol, K. Suzanne Barber, Jeffrey Rosenschein, Laurent Vercouter
Venue: Proceeding of the 2005 conference on Artificial Intelligence Research and Development (2005)

The Agent Reputation and Trust (ART) Testbed initiative has been launched with the goal of establishing a testbed for agent reputation-and trust-related technologies. This testbed serves in two roles: (1) as a competition forum in which researchers can compare their technologies against objective metrics, and (2) as a suite of tools with flexible parameters, allowing researchers to perform customizable, easily-repeatable experiments. In the testbed's art appraisal domain, agents, who valuate paintings for clients, may gather opinions from other agents to produce accurate appraisals. This paper first gives a brief overview of the testbed domain problem to orient the reader to the game rules. A discussion of the ART Testbed implementation architecture is presented, explaining the functionality of the testbed's Game Server, Simulation Engine, Database, User Interfaces, and Agent Skeleton.
n-Dimensional Distribution Reduction Preserving its Structure
Authors: Eduard Vazquez, Francesc Tous, Ramon Baldrich, Maria Vanrell
Venue: Proceeding of the 2006 conference on Artificial Intelligence Research and Development (2006)

The work proposed in this paper deals with n-dimensional distribution reduction. Instead of working with only local maxima we argue that it is also important to conserve how this maxima could be joined to better understand them. The main idea is to maintain the topological structure of the distribution in order to facilitate interpretation of the data. To achieve this reduction we work with the creaseness definition and ridge extraction, as a structure descriptor of a n-dimensional surface. In this way we have obtained promising results, that could be applied into a wide range of problems.
A service oriented loosely coupled GUI framework in the mobile context
Authors: Albrecht Stäbler
Venue: Proceeding of the 2008 conference on Techniques and Applications for Mobile Commerce: Proceedings of TAMoCo 2008 (2008)

This document describes the architecture of a generic GUI framework on mobile devices. In a client server system such a framework allows to display a user interface on a multitude of devices without any changes in the GUI description. To achieve this goal an extended version of the model view controller (MVC) pattern is used in the form of a Java applet which communicates with its server via the http protocol. The last section of this document elaborates on the special circumstances of client server applications on mobile devices.
Learning 3ds Max 2008 Foundation
Authors: Autodesk
Venue:  (2007)

Learning Autodesk 3ds Max 2008 | Foundation is your shortcut to learning 3ds Max quickly and effectively. You'll get hands-on experience with the key tools and techniques through easy-to-follow, step-by-step project-based lessons, while learning to model, animate, apply materials and render in both the games & design visualization pipelines. By the end of the book you'll have a sense of the entire production process as you work on real-life production examples.Whether you're a game artist or a graphic artist, Autodesk 3ds Max 2008 has the tools you need to succeed. Game Artists will gain in-depth knowledge of the world-class Biped character animation toolset, unparalleled polygon modeling and texturing workflow.Design Visualization Specialists such as architects, designers, and graphic artists, will gain the power to visually inform the design process through conceptual exploration, design validation and visual communication.Bonus features included on DVD:. Link to a 30-day trial of Autodesk 3ds Max software. Bonus short films and new software feature demos. Autodesk 3ds Max hotkeys reference guide. Free models from Turbo Squid worth $160. Autodesk 3ds Max 2008 * An all-access pass to the production and teaching experience of Autodesk's training experts* Concept-driven lessons, fully illustrated in color, teach you the essentials of using 3ds Max 2008 so you can master the techniques of animation, modeling, materials, lighting and rendering* DVD includes instructor led videos, support files and movies as well as interviews with contributing artists and FREE models from Turbo Squid worth US $160!With this official Autodesk training guide, you will also:. Learn about the user interface (UI) and work in 3D space. Learn about animation basics and key frame animation. Character modeling with editable poly. Create rigs with biped. Make morph targets with paint tools. Learn about unwrapping UVs. Learn about motion mixer workflow. Understand & animate cameras. Learn about light types and advanced lighting techniques. Rendering Techniques & Tools (mental ray & Render Effect) 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
Analyzing Software Engineering Processes on Source Code Level
Authors: Dirk Wilking, Stefan Kowalewski
Venue: Proceeding of the 2007 conference on New Trends in Software Methodologies, Tools and Techniques: Proceedings of the sixth SoMeT_07 (2007)

The following paper describes a framework for a software engineering process evaluation based on source code changes. The main aspect is to collect the complete source code during every compile step. A detailed analysis of each change of the source code allows a categorization of the type of change. This can be regarded as atomic actions containing especially the problems that occurred during the development. Initial results collected during a software experiment are analyzed and five hypothesis are discussed.
Substitutes or complements: another step forward in recommendations
Authors: Jiaqian Zheng, Xiaoyuan Wu, Junyu Niu, Alvaro Bolivar
Venue: Proceedings of the tenth ACM conference on Electronic commerce (2009)

In this paper, we introduce the method tagging substitute-complement attributes on miscellaneous recommending relations, and elaborate how this step contributes to electronic merchandising. There are already decades of works in building recommender systems. Steadily outperforming previous algorithms is difficult under the conventional framework. However, in real merchandising scenarios, we find describing the weight of recommendation simply as a scalar number is hardly expressive, which hinders the further progress of recommender systems. We study a large log of user browsing data, revealing the typical substitute complement relations among items that can further extend recommender systems in enriching the presentation and improving the practical quality. Finally, we provide an experimental analysis and sketch an online prototype to show that tagging attributes can grant more intelligence to recommender systems by differentiating recommended candidates to fit respective scenarios.
An Usability Study of Continuous Biometrics Authentication
Authors: Geraldine Kwang, Roland H. Yap, Terence Sim, Rajiv Ramnath
Venue: Proceedings of the Third International Conference on Advances in Biometrics (2009)

We present an usability study for a bi-modality Continuous Biometrics Authentication System (CBAS) that runs on the Windows platform. Our CBAS combines fingerprint and facial biometrics to authenticate users. As authentication is continuous, CBAS constantly contributes a computational overhead of up to 42% to the computer system. This usability study seeks to investigate (a) whether this overhead will have an impact on the performance of users to complete tasks; and (b) whether the users deem the responsiveness of the system to be acceptable. The results of our study are encouraging, indicating that the runtime cost of a CBAS system has no measurable statistical impact on the task completion by users. We found that user acceptance of CBAS to be good and they did not perceive the CBAS to degrade system response. This suggests that continuous biometrics for authentication is viable --- the CBAS benefits outweighs system impact drawbacks.
Pedagogical Agents Trying on a Caring Mentor Role
Authors: Konstantin Zakharov, Antonija Mitrovic, Lucy Johnston
Venue: Proceeding of the 2007 conference on Artificial Intelligence in Education: Building Technology Rich Learning Contexts That Work (2007)

We describe the design and evaluation of an affective pedagogical agent persona for Intelligent Tutoring Systems. The goal of our research was to develop an agent embodying a persona of a caring mentor interested in the learner's progress. The agent's behaviour is guided by a set of rules that are triggered by the states of the session history. Four agents were integrated with EER-Tutor for a formative evaluation study. The mentor persona secured strong rapport with the users; the audible narration was seen as a strong feature of the agents.
Mapping concrete entities from PAROLE-SIMPLE-CLIPS to ItalWordNet: methodology and results
Authors: Adriana Roventini, Nilda Ruimy, Rita Marinelli, Marisa Ulivieri, Michele Mammini
Venue: Proceedings of the 45th Annual Meeting of the ACL on Interactive Poster and Demonstration Sessions (2007)

This paper describes a work in progress aiming at linking the two largest Italian lexical-semantic databases ItalWordNet and PAROLE-SIMPLE-CLIPS. The adopted linking methodology, the software tool devised and implemented for this purpose and the results of the first mapping phase regarding 1stOrderEntities are illustrated here.
Using a thematic model to enrich photo montages
Authors: Charlie Hargood, David E. Millard, Mark J. Weal
Venue: Proceedings of the 20th ACM conference on Hypertext and hypermedia (2009)

Narrative systems attempt to present users with media collections that include some element of structure or story, however these collections can lack an authorial voice and seem bland as a result. In this paper we explore how themes could be used to enrich automatically generated narratives, and describe how a system which generated story selections in the form of photo montages was developed using a thematic model of narrative. This was achieved by selecting narrative atoms, in this case photographs, from a selection of images on a specific subject with relevance to a desired theme. Our pilot study shows that our thematic system selects images with greater relevance to desired titles, and that the positive impact of thematic selection increases when the images are presented together. We hope that our thematic work will inform others working on narrative systems, and will lead to richer automated narratives.
A high-speed variation-tolerant interconnect technique for sub-threshold circuits using capacitive boosting
Authors: Jonggab Kil, Jie Gu, Chris H. Kim
Venue: IEEE Transactions on Very Large Scale Integration (VLSI) Systems (2008)

This paper describes an interconnect technique for subthreshold circuits to improve global wire delay and reduce the delay variation due to process-voltage-temperature (PVT) fluctuations. By internally boosting the gate voltage of the driver transistors, operating region is shifted from subthreshold region to super-threshold region enhancing performance and improving tolerance to PVT variations. Simulations of a clock distribution network using the proposed driver shows a 66%-76% reduction in 3σ clock skew value and 84%-88% reduction in clock tree delay compared to using conventional drivers. A 0.4-V test chip has been fabricated in a 0.18-µm 6-metal CMOS process to demonstrate the effectiveness of the proposed scheme. Measurement results show 2.6 × faster switching speed and 2.4 × less delay sensitivity under temperature variations.
Media Production with Adobe After Effects 7.0, 1st edition
Authors: Mike Duggan
Venue:  (2007)

Discover how to create stunning media production and motion graphics effects for film and video using Adobe After Effects 7.0. Adobe After Effects 7.0 is the latest version of a powerful and flexible digital motion graphics and compositing software the enables digital effects to be easily integrated into live video or film. Appropriate for all skill levels, from beginner to professional, this book will show readers how to turn a home computer into a media workstation and get them started implementing great visual effects in all types of media. Easy to follow lessons are supplemented by real-life examples, and readers are encouraged to build on and customize each project. Media Production with Adobe After Effects 7.0 features industry tips and tricks and the accompanying CD-ROM includes all the programs and source files needed to get started creating exciting visual effects. 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
Tableau-based decision procedure for full coalitional multiagent temporal-epistemic logic of linear time
Authors: Valentin Goranko, Dmitry Shkatov
Venue: Proceedings of The 8th International Conference on Autonomous Agents and Multiagent Systems - Volume 2 (2009)

We develop a tableau-based decision procedure for the full coalitional multiagent temporal-epistemic logic of linear time CMATEL(CD+LT). It extends LTL with operators of common and distributed knowledge for all coalitions of agents. The tableau procedure runs in exponential time, matching the lower bound obtained by Halpern and Vardi for a fragment of our logic, thus providing a complexity-optimal decision procedure for CMATEL(CD+LT).
Opinion Learning without Emotional Words
Authors: Marina Sokolova, Guy Lapalme
Venue: Proceedings of the 22nd Canadian Conference on Artificial Intelligence: Advances in Artificial Intelligence (2009)

This paper shows that a detailed, although non-emotional, description of event or an action can be a reliable source for learning opinions. Empirical results illustrate the practical utility of our approach and its competitiveness in comparison with previously used methods.
Cyber-Security and Threat Politics: US Efforts to Secure the Information Age, 1st edition
Authors: Myriam Dunn Cavelty
Venue:  (2007)

This book explores the political process behind the construction of cyber-threats as one of the quintessential security threats of modern times in the US.Myriam Dunn Cavelty posits that cyber-threats are definable by their unsubstantiated nature. Despite this, they have been propelled to the forefront of the political agenda. Using an innovative theoretical approach, this book examines how, under what conditions, by whom, for what reasons, and with what impact cyber-threats have been moved on to the political agenda. In particular, it analyses how governments have used threat frames, specific interpretive schemata about what counts as a threat or risk and how to respond to this threat. By approaching this subject from a security studies angle, this book closes a gap between practical and theoretical academic approaches. It also contributes to the more general debate about changing practices of national security and their implications for the international community. 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
Literature trends for mobile learning: word frequencies and concept maps
Authors: Lidan Ha, Jie Du, Heather Holden, Roy Rada
Venue: International Journal of Mobile Learning and Organisation (2009)

This study identifies patterns in the mobile-learning literature. The hypothesis is that the literature will demonstrate a growth over years and will cluster around the concepts in a published concept map. Four citation databases were systematically analysed. While the number of publications has been increasing in the engineering databases, the growth has been less apparent in the education and business databases, which may reflect a faster growth in the technology than in its applications to education and business. All the many concepts of the concept map were recognised except for 'ethics' and 'discourse', which merit future attention.
On sorting and load balancing on GPUs
Authors: Daniel Cederman, Philippas Tsigas
Venue: ACM SIGARCH Computer Architecture News (2009)

In this paper we take a look at GPU-Quicksort, an efficient Quicksort algorithm suitable for the highly parallel multi-core graphics processors. Quicksort had previously been considered an inefficient sorting solution for graphics processors, but GPU-Quicksort often performs better than the fastest known sorting implementations for graphics processors, such as radix and bitonic sort. Quicksort can thus be seen as a viable alternative for sorting large quantities of data on graphics processors. We also take look at a comparison of different load balancing schemes. To get maximum performance on the many-core graphics processors it is important to have an even balance of the workload so that all processing units contribute equally to the task at hand. This can be hard to achieve when the cost of a task is not known beforehand and when new sub-tasks are created dynamically during execution. With the recent advent of scatter operations and atomic hardware primitives it is now possible to bring some of the more elaborate dynamic load balancing schemes from the conventional SMP systems domain to the graphics processor domain.