ppxscal/embedding_network huggingface dataset:
Beyond the digital divide into computer-mediated communications: a content analysis of the role of community weblogs in building oldenburg's virtual third places in black america
Authors: Chukwudi Franklin Igwe
Venue:  (2008)

This dissertation uses content analysis to examine how African Americans utilize blogs to create virtual &ldquo;third place&rdquo; communities (as described by Oldenburg), as a means to rebuild aspects of community that are lacking in their &ldquo;real-world&rdquo; communities in regards to HIV/AIDS discussion and emotional support. The need for this new source of communal support arose from the silence and inactions of traditional black institutions as it pertained to crisis. The analysis focuses on discussion threads in which individuals in an African-American blogging community, Black America Web (BAW) (www.blackamericaweb.com), respond to HIV/AIDS articles/commentary online. The research addresses a basic question: How, and if so why, does the Weblog under study exhibit characteristics of &ldquo;third places&rdquo; as conceptualized by Oldenburg (1999)? The research lends credence to the belief that the importance of studying technology lies in the uniqueness of the social interactions the internet inspires, and not strictly for its technological attributes. Blogs were chosen because they represent a single virtual place, outside of large social gatherings, where people can engage in real time conversations on a grand scale, and unlike their physical counterparts, users are empowered by the relative cloak of anonymity afforded by the internet. Never before has a medium such as Information Communicative Technology (ICT) existed that can connect and enable conversations from members representing all classes of the geographically dispersed, cultural and ethnic community, with potentially everyone being able to contribute to the discussion and be heard.Keywords. HIV/AIDS, blogs, community, third place, social support, content analysis, African-American 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
Context-aware and personalized event filtering for low-overhead continuous remote health monitoring
Authors: Iqbal Mohomed, Archan Misra, Maria Ebling, William Jerome
Venue: Proceedings of the 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks (2008)

A particularly compelling vision of long-term remote health monitoring advocates the use of a personal pervasive device (such as a cellphone) as an intermediate relay, which transports data streams from multiple body-worn sensors to a backend analytics infrastructure. Unfortunately, a pure relay-based functionality on the cellphone is inadequate in the longer term, as increasingly sophisticated medical sensors impose unnacceptably high uplink traffic and energy consumption costs on the mobile device. To address this challenge, we are building an event-processing middleware, called HARMONI, which enables the pervasive device to perform context-aware processing and event filtering on the sensor data streams and locally extract higher-level features of interest, thereby reducing the volume of transmitted data. This paper presents the design and architectural components of HARMONI, with special emphasis on its implementation of context-aware event processing. This paper then demonstrates that the mobile device can extract localized context from the incoming sensor stream with sufficient accuracy to achieve satisfactory context-aware filtering. Our results also establish the need for personalizing such context extraction, as they show that similar sensor data patterns obtained from different individuals can imply significantly different activity contexts.
Overlapping Pools for High Throughput Targeted Resequencing
Authors: Snehit Prabhu, Itsik Pe'Er
Venue: Proceedings of the 13th Annual International Conference on Research in Computational Molecular Biology (2009)

Resequencing genomic DNA from pools of individuals is an effective strategy to detect new variants in targeted regions and compare them between cases and controls. There are numerous ways to assign individuals to the pools on which they are to be sequenced. The naïve, disjoint pooling scheme (many individuals to one pool) in predominant use today, offers insight into allele frequencies, but does not offer the identity of an allele carrier. We present a framework for overlapping pool design, where each individual sample is resequenced in several pools (many individuals to many pools). Upon discovering a variant, the set of pools where this variant is observed reveals the identity of its carrier. We formalize the mathematical framework for such pool designs, and list the requirements from such designs. Next, we build on the theory of error-correcting codes to design arrangements that overcome pitfalls of pooled sequencing. Specifically, three practical concerns of low coverage sequencing are investigated: (1) False positives due to errors introduced during amplification and sequencing; (2) False negatives due to undersampling particular alleles aggravated by non-uniform coverage; and consequently (3) Ambiguous identification of individual carriers in the presence of errors. We show that in practical parameters of resequencing studies, our designs guarantee high probability of unambiguous singleton carrier identification, while maintaining the features of naïve pools in terms of sensitivity, specificity, and the ability to estimate allele frequencies. We demonstrate the ability of our designs by extracting rare variations on pooled short read data of 12 individuals from the 1000 Genome Pilot 3 project.
Evaluation of Micronozzle Performance through DSMC, Navier-Stokes and Coupled DSMC/Navier-Stokes Approaches
Authors: Federico Torre, Sasa Kenjeres, Chris R. Kleijn, Jean-Luc P. Moerel
Venue: Proceedings of the 9th International Conference on Computational Science: Part I (2009)

Both the particle based Direct Simulation Monte Carlo (DSMC) method and a compressible Navier-Stokes based continuum method are used to investigate the flow inside micronozzles and to predict the performance of such devices. For the Navier-Stokes approach, both slip and no-slip boundary conditions are applied. Moreover, the two methods have been coupled to be used together in a hybrid particle-continuum approach: the continuum domain was then investigated by solving the Navier-Stokes equations with slip wall boundary condition, whereas the region of rarefied regime was studied by DSMC. The section where the domain was split was shown to have a great influence in the prediction of the nozzle performance.
Information systems in the Indian manufacturing sector: extent of use and support for managerial roles
Authors: Khushdeep Dharni, R. K. Sharma, Ravi Kiran
Venue: International Journal of Business Information Systems (2009)

This paper aims to explore Computer-based Information Systems (CBISs) use in manufacturing firms across levels of management, as well as functional areas, in terms of duration and extent of use. An attempt has also been made to study the value of CBISs for different managerial roles. A survey was undertaken covering 26 large-scale manufacturing organisations in India. The respondents were spread across different levels of management, i.e., top level, middle level and lower level, as well as across different functional areas of management. There is a difference in the use of CBISs among Indian managers across both levels of management and functional areas. Information Technology (IT) and Finance &amp; Accounting managers were the heaviest users of CBISs, with an average weekly use of 51 hours and 36 hours respectively, while Production managers and Human Resource (HR) managers were relatively light users with a weekly usage rate of 22 hours and 23 hours respectively. Managers viewed CBISs as having moderate importance for supporting their tasks and activities across managerial roles. Within managerial roles the maximum value of CBIS was attached to carrying out decisional roles, followed by interpersonal roles and informational roles. To a large extent, managers used CBISs for making operational decisions rather than tactical and strategic decisions.
Electromagnetic simulation by the FDTD method in Java
Authors: Stephen Kirkup, Irfan Mulla, Goodchild Ndou, Javad Yazdani
Venue: Proceedings of the 10th WSEAS international conference on Mathematical methods, computational techniques and intelligent systems (2008)

The FDTD (Finite Difference Time Domain) is the most popular method for transient electromagnetic simulation. A FDTD method is developed through applying Yee's algorithm and a Mur boundary condition. The method is implemented in Java using object-oriented design principles. The program can simulate and visualize an evolving electromagnetic field in any cuboidal, multiple material domain. The program is made available as open source from www.east-lancashire-research.org.uk (AR-08-17).
Phase-guided thread-to-core assignment for improved utilization of performance-asymmetric multi-core processors
Authors: Tyler Sondag, Hridesh Rajan
Venue: Proceedings of the 2009 ICSE Workshop on Multicore Software Engineering (2009)

CPU vendors are starting to explore trade offs between die size, number of cores on a die, and power consumption leading to performance asymmetry among cores on a single chip. For efficient utilization of these performance-asymmetric multi-core processors, application threads must be assigned to cores such that the resource needs of a thread closely matches resource availability at the assigned core. This significantly complicates the task of an average programmer. The contribution of this work is a technique for automatically determining the mapping between threads and performance-asymmetric cores of a processor. Our approach, which we call phase-guided thread-to-core assignment, builds on a well-known insight that programs exhibit phase behavior. We first take code sections and group them into clusters such that each section in a cluster is likely to exhibit similar runtime characteristics. The key idea is that with this clustering, characteristics of a small number of representative sections in a cluster give insight into the behavior of the entire cluster. Thus the exhibited characteristics of the representative sections on different types of cores can be used for automating thread-to-core assignment at a lower runtime cost. Variations of our technique show up to an average 150% improvement in throughput over the stock Linux scheduler for systems with a constant feed of jobs, while maintaining comparable fairness and efficiency.
Fault-Tolerant Interpretation of Mathematical Formulas in Context
Authors: Helmut Horacek, Magdalena Wolska
Venue: Proceeding of the 2005 conference on Artificial Intelligence in Education: Supporting Learning through Intelligent and Socially Informed Technology (2005)

We present a fault-tolerant formula interpreter that aims at finding plausibly intended, formally correct specifications from student statements containing formal inaccuracies. Its methods comprise local changes based on error categories, fault-tolerant structure building, and testing contextually-motivated alternations.
Apple Pro Training Series: Logic Pro 8: Beyond the Basics
Authors: David Dvorin
Venue:  (2007)

In this Apple-certified guide, author David Dvorin demonstrates the powerful advanced features in Logic Pro that have led many of the world's top producers, composers, and engineers to make this program the centerpiece of their music studios. Starting with advanced set-up in the brand-new interface in Logic Pro 8, he teaches you important skills like music production and editing, notation, and scoring to picture. Along the way, he reveals real-world techniques for mixing, editing, and producing, and shares professional secrets for streamlining production workflows and constructing a mix to meet the most exacting standards. Experienced Logic users and newcomers alike will find invaluable methods for manipulating tempo and pitch, fine-tuning audio and MIDI tracks, managing signal flow, and getting the most out of Logic's revolutionary audio instruments. A companion DVD includes the lesson and media files needed to complete the book's exercises, plus free trial Logic plug-ins from leading manufacturers. 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
Selection and Testing of Reporting Tools for an Internet Cadastre Information System
Authors: Dariusz Król, Małgorzata Podyma, Bogdan Trawiński
Venue: Proceeding of the 2005 conference on Software Engineering: Evolution and Emerging Technologies (2005)

The process of selecting and implementing of reporting mechanisms for a cadastre internet information system is described. Many factors as technical feasibility, costs and licensing as well as the efficiency and scalability required have been taken into account. Three versions of reporting mechanisms based on Crystal Reports, Free PDF library and XML technology have been implemented and tested using Microsoft's Web Application Stress Tool.
Workforce readiness: A study of university students' fluency with information technology
Authors: Karen Kaminski, Jamie Switzer, Gene Gloeckner
Venue: Computers Education (2009)

This study with data collected from a large sample of freshmen in 2001 and a random stratified sample of seniors in 2005 examined students perceived FITness (fluency with Information Technology). In the fall of 2001 freshmen at a medium sized research-one institution completed a survey and in spring 2005 a random sample of graduating seniors completed a similar survey. The surveys measured the student's self-reported proficiency in basic information technology knowledge and skills such as word processing and presentation software as well as more complex applications such as digital audio. We found a significant increase in perception of skills in presentation software and browsers and although both groups reported low skill levels, a significant decrease in perception of skills in database, web animation, programming, desktop publishing, digital video, and video audio. Although one might assume an undergraduate would indicate an increase in information and communication technology skills, this study found that often student's perceptions of ability decline. However this decrease may be due to their increased awareness of the skills needed in the workforce.
Aspects behavior of bridges which use different vibration isolating systems
Authors: Gilbert-Rainer Gillich, Daniel Amariei, Vasile Iancu, Camelia Stefania Jurcau
Venue: Proceedings of the 10th WSEAS international conference on Automation & information (2009)

Vibration damping represents one, if not the most important issue in order to mitigate hazards and to enhance the structure's reliability and performances. Earthquakes represent one of the main sources of vibration which can essentially harm the infrastructures. Thus, the paper summarizes researches regarding different types of seismic isolators and their influence on the structural performances, aiming to provide technical support for seismic risk mitigation.
Stable and efficient finite-difference nonlinear-multigrid schemes for the phase field crystal equation
Authors: Z. Hu, S. M. Wise, C. Wang, J. S. Lowengrub
Venue: Journal of Computational Physics (2009)

In this paper we present and compare two unconditionally energy stable finite-difference schemes for the phase field crystal equation. The first is a one-step scheme based on a convex splitting of a discrete energy by Wise et al. [S.M. Wise, C. Wang, J.S. Lowengrub, An energy stable and convergent finite-difference scheme for the phase field crystal equation, SIAM J. Numer. Anal., in press]. In this scheme, which is first order in time and second order in space, the discrete energy is non-increasing for any time step. The second scheme we consider is a new, fully second-order two-step algorithm. In the new scheme, the discrete energy is bounded by its initial value for any time step. In both methods, the equations at the implicit time level are nonlinear but represent the gradients of strictly convex functions and are thus uniquely solvable, regardless of time step-size. We solve the nonlinear equations using an efficient nonlinear multigrid method. Numerical simulations are presented and confirm the stability, efficiency and accuracy of the schemes.
Proceedings of The 8th International Conference on Autonomous Agents and Multiagent Systems - Volume 1
Venue: International Conference on Autonomous Agents (2009)

In the beginning of the 21th century, the success of the so-called information society has changed dramatically both the requirements and the main characteristics of most computer-based systems. The previous century saw a migration from huge mainframes with limited capacity of memory to personal microcomputers that were further linked by powerful networks. Pushing one step further the evolution that computing has experienced since its beginning, today's users are part of an on-line design team and can influence and change dynamically the contents and shape of information provided by computer-based systems. Moreover, computing is not restricted anymore to traditional desktop computers: with the parallel progress of telecommunications and information technology, we have plenty of applications running on mobile phones, PDAs, network interfaces and digital TV. These new scenarios impose complementary requirements for system design, such as ubiquity, distribution, and availability, generating thus an increase on these systems' size, complexity, and diversity. Agents and multiagent systems are a natural way to conceptualize, understand, analyze, design, and implement such systems, since from the beginning the area has aimed to deal with complex and distributed systems, composed of autonomous individual entities that were supposed to act, and interact, in an organized way. Agent and multiagent oriented models and technologies are being used in several domains of applied research, like social simulation, games, pervasive and ubiquitous computing, robotics, user interfaces, computer-mediated collaboration, electronic commerce, information retrieval, education and training. All of these research areas are represented in the AAMAS 2009 program. The Autonomous Agents and Multiagent Systems (AAMAS) conference series brings together researchers from around the world to share the latest advances in the field. It was initiated in 2002 as a merger of three highly successful related events: the International Conference on Autonomous Agents (AGENTS), the International Conference on MultiAgent Systems (ICMAS), and the International Workshop on Agent Theories, Architectures, and Languages (ATAL). The AAMAS conference series provides a single, high-profile forum for research in the theory and practice of autonomous agents and multiagent systems. AAMAS 2002, the first of the series, was held in Bologna, followed by AAMAS 2003 in Melbourne, AAMAS 2004 in New York, AAMAS 2005 in Utrecht, AAMAS 2006 in Hakodate, AAMAS 2007 in Honolulu, AAMAS 2008 in Estoril and AAMAS 2009 in Budapest. The main theme of AAMAS-09, based on feedback from previous editions, is reinforcing the rich panorama of *interconnections* in the field.
2007 Excellence in Practice: Moving the Goalposts Innovation and Excellence in Workflow and Business Process Management
Authors: Layna Fischer
Venue:  (2007)

Now in their 16th year, the Global Awards for Excellence in BPM and Workflow recognize organizations that excel in implementing innovative Workflow and Business Process Management solutions to meet strategic business objectives. The companies whose case studies are featured in this book have proven excellence in their creative and successful deployment of advanced workflow process and business process management concepts. The positive impact to their corporations includes increased revenues, more productive and satisfied employees, product enhancements, better cus-tomer service and quality improvements.
Exploration and Rapid Prototyping of DSP Applications using SystemC Behavioral Simulation and High-level Synthesis
Authors: Farhat Thabet, Philippe Coussy, Dominique Heller, Eric Martin
Venue: Journal of Signal Processing Systems (2009)

Early exploration of communication architectures and timing behaviors is a key step in modern system design flows. This paper proposes a framework for the design space exploration of DSP applications. The proposed approach is based on four main abstraction levels: algorithmic, architectural (communication interface), behavioral (I/O timing diagram) and RTL. The system specification is based on a set of Behavioral Description Models (BDM) which communicate through channels: each BDM represents a hardware component. For this purpose, a BDM (1) embeds a sequential function--that describes the computing algorithm to be implemented--into a module and (2) includes a set of I/O and control processes. Communication architectures and timing behaviors (I/O scheduling, I/O parallelism...) of each BDM can be modified and easily explored by adding I/O and control code into the dedicated concurrent processes. This allows keeping the description of the functionality unchanged throughout the refinement steps. The high-level synthesis tool GAUT is next used to generate, from the unmodified sequential function, the RTL architectures that respect the constraints i.e. the refined I/O timing behavior. The use of BDMs for the system description allows the designer to simulate and to evaluate several communication architectures and several timing behaviors during the performance analysis phase. The interest of our approach is shown through the case study of a Hyper-plane Intersection and Selection HIS algorithm for MC-CDMA system.
Recognizing interspersed sketches quickly
Authors: Tracy A. Hammond, Randall Davis
Venue: Proceedings of Graphics Interface 2009 (2009)

Sketch recognition is the automated recognition of hand-drawn diagrams. When allowing users to sketch as they would naturally, users may draw shapes in an interspersed manner, starting a second shape before finishing the first. In order to provide freedom to draw interspersed shapes, an exponential combination of subshapes must be considered. Because of this, most sketch recognition systems either choose not to handle interspersing, or handle only a limited pre-defined amount of interspersing. Our goal is to eliminate such interspersing drawing constraints from the sketcher. This paper presents a high-level recognition algorithm that, while still exponential, allows for complete interspersing freedom, running in near real-time through early effective sub-tree pruning. At the core of the algorithm is an indexing technique that takes advantage of geometric sketch recognition techniques to index each shape for efficient access and fast pruning during recognition. We have stresstested our algorithm to show that the system recognizes shapes in less than a second even with over a hundred candidate subshapes on screen.