ppxscal/embedding_network huggingface dataset:
Defining user perception of distributed multimedia quality
Authors: Stephen R. Gulliver, Gheorghita Ghinea
Venue: ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) (2006)

This article presents the results of a study that explored the human side of the multimedia experience. We propose a model that assesses quality variation from three distinct levels: the network, the media and the content levels; and from two views: the technical and the user perspective. By facilitating parameter variation at each of the quality levels and from each of the perspectives, we were able to examine their impact on user quality perception. Results show that a significant reduction in frame rate does not proportionally reduce the user's understanding of the presentation independent of technical parameters, that multimedia content type significantly impacts user information assimilation, user level of enjoyment, and user perception of quality, and that the device display type impacts user information assimilation and user perception of quality. Finally, to ensure the transfer of information, low-level abstraction (network-level) parameters, such as delay and jitter, should be adapted; to maintain the user's level of enjoyment, high-level abstraction quality parameters (content-level), such as the appropriate use of display screens, should be adapted.
DB2 for Z/os Stored Procedures: Through the Call And Beyond (IBM Redbooks)
Venue:  (2005)

This IBM Redbook helps you design, install, manage, and tune stored procedures with DB2 for z/OS. Stored procedures can provide major benefits in the areas of application performance, code re-use, security, and integrity. DB2 has offered an ever improving support for developing and operating stored procedures. DB2's enhancements are related to tooling, language support, system environment, and have opened new possibilities for secure, highly portable applications in line with the e-business strategy of today's organizations. In this project we show how to develop stored procedures in several languages; we explore the new functions available for the z/OS platform deployment; and provide recommendations on setting up and tuning the appropriate stored procedure environment. The functions we have investigated include setting up the WLM environments, nesting stored procedure, invoking COBOL, C, REXX, SQL language programs, accounting, debugging options, special registers, and diagnostics. We have also set up, developed, and debugged Java stored procedures with the new Java universal driver in a DB2 for z/OS Version 8 environment. A chapter is devoted to DB2-supplied stored procedures. They can be used for almost all of a DBA's tasks. We start with the basic information, which is useful for the reader who is just beginning with stored procedures, but we also deal with more detailed and recent functionalities, which will be of interest for the more advanced users. 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
FAST TCP: motivation, architecture, algorithms, performance
Authors: David X. Wei, Cheng Jin, Steven H. Low, Sanjay Hegde
Venue: IEEE/ACM Transactions on Networking (TON) (2006)

We describe FAST TCP, a new TCP congestion control algorithm for high-speed long-latency networks, from design to implementation.We highlight the approach taken by FAST TCP to address the four difficulties which the current TCP implementation has at large windows. We describe the architecture and summarize some of the algorithms implemented in our prototype. We characterize its equilibrium and stability properties. We evaluate it experimentally in terms of throughput, fairness, stability, and responsiveness.
Comparison of limit standards using a sequential probability ratio test
Authors: Roy R. Creasey,  Jr., K. Preston White,  Jr.
Venue: Proceedings of the 38th conference on Winter simulation (2006)

We continue our research into the comparison, via simulation experiments, of a stochastic system to a limit standard. A limit standard is defined as a maximum and/or minimum standard. We have found that evaluation methods using proportions provide a statistically valid comparison of this family of standards. In this paper, we present the use of Wald's sequential probability ratio test (SPRT) as a comparison method. We define a fully sequential analysis procedure, as well as initial test results.
Multilevel data summarization from information systems: a &ldquo;rule + exception&rdquo; approach
Authors: Jue Wang, Min Zhao, Kai Zhao, Suqing Han
Venue: AI Communications (2003)

In this paper we present a theoretical framework on Multilevel Data Summarization (MDS) - a process to summarize an information system into rule sets with different concise degrees (granularity) and corresponding exception sets, which is viewed as the rule-plus-exception model in cognitive science.In order to construct the theoretical framework of MDS, we propose the cognitive positive region and cognitive boundary region to substitute for the positive region and boundary region in rough set theory. Unlike current approaches, the structure of boundary region is paid more attention than positive region in this framework.Since exceptions are sometimes more important than rules for applications, we introduce a method to identify exceptions from a given information system, which concerns closely with the distribution of core attributes in the discernibility matrix.
Perturbation-Based Eigenvector Updates for On-Line Principal Components Analysis and Canonical Correlation Analysis
Authors: Anant Hegde, Jose C. Principe, Deniz Erdogmus, Umut Ozertem, Yadunandana N. Rao, Hemanth Peddaneni
Venue: Journal of VLSI Signal Processing Systems (2006)

Principal components analysis is an important and well-studied subject in statistics and signal processing. Several algorithms for solving this problem exist, and could be mostly grouped into one of the following three approaches: adaptation based on Hebbian updates and deflation, optimization of a second order statistical criterion (like reconstruction error or output variance), and fixed point update rules with deflation. In this study, we propose an alternate approach that avoids deflation and gradient-search techniques. The proposed method is an on-line procedure based on recursively updating the eigenvector and eigenvalue matrices with every new sample such that the estimates approximately track their true values as would be calculated analytically from the current sample estimate of the data covariance matrix. The perturbation technique is theoretically shown to be applicable for recursive canonical correlation analysis, as well. The performance of this algorithm is compared with that of a structurally similar matrix perturbation-based method and also with a few other traditional methods like Sanger's rule and APEX.
Coverage area management for wireless sensor networks
Authors: Isabela G. Siqueira, Linnyer Beatrys Ruiz, Antonio A. F. Loureiro, José Marcos Nogueira
Venue: International Journal of Network Management (2007)

In this work, we present a self-management service for Wireless Sensor Networks (WSNs) that automatically controls the network redundancy. Based on a density control function, this service improves the monitoring potential of the sensor nodes. Our simulation experiments show that this self-management service provides good and lasting coverage, as desired by WSNs applications.
Attention-driven image interpretation with application to image retrieval
Authors: Hong Fu, Zheru Chi, Dagan Feng
Venue: Pattern Recognition (2006)

Visual attention, a selective procedure of human's early vision, plays a very important role for humans to understand a scene by intuitively emphasizing some focused regions/objects. Being aware of this, we propose an attention-driven image interpretation method that pops out visual attentive objects from an image iteratively by maximizing a global attention function. In this method, an image can be interpreted as containing several perceptually attended objects as well as a background, where each object has an attention value. The attention values of attentive objectives are then mapped to importance factors so as to facilitate the subsequent image retrieval. An attention-driven matching algorithm is proposed in this paper based on a retrieval strategy emphasizing attended objects. Experiments on 7376 Hemera color images annotated by keywords show that the retrieval results from our attention-driven approach compare favorably with conventional methods, especially when the important objects are seriously concealed by the irrelevant background.
Cramer's rule reconsidered or equilibration desirable
Authors: Charles B. Dunham
Venue: ACM SIGNUM Newsletter (1980)

Consider the solution of systems of two linear equations, for which Cramer's rule has some attractions [3]. It is claimed by Moler [3] that Cramer's rule is of unsatisfactory accuracy even in this case, whereas the claim is made that Gaussian eliminatino with pivoting is good (a related analysis, cited by Moler, is that of Bauer [1]). But consider the example (14) of Forsythe [2, p. 505]
The appropriate role of dispute resolution in building trust online
Authors: Colin Rule, Larry Friedberg
Venue: Artificial Intelligence and Law (2005)

This article examines the relationship between online dispute resolution (ODR) and trust. We discuss what trust is, why trust is important, and how trust develops. Our claim is that efforts to implement online dispute resolution on a site or service in a manner that promotes trust need to consider ODR as just one tool in a broader toolbox of trust-building tools and techniques. These techniques are amongst others marketing, education, trust seals, and transparency. By evaluating ODR in its proper context as one component of a larger trust strategy, we can more accurately set expectations for its results and position our projects for success.
Aspect-oriented application-level scheduling for J2EE servers
Authors: Kenichi Kourai, Hideaki Hibino, Shigeru Chiba
Venue: Proceedings of the 6th international conference on Aspect-oriented software development (2007)

Achieving sufficient execution performance is a challenging goal of software development. Unfortunately, violating performance requirements is often revealed at a late stage of the development. Fixing a performance problem at such a late stage is difficult in terms of cost and time. To solve this problem, this paper presents QoSWeaver, which provides aspect-oriented application-level scheduling. QoSWeaver weaves scheduling code written in an aspect into application code. The scheduling code gets an application thread to voluntarily yield its execution to implement a scheduling policy. The idea of scheduling at the application level is not new, but aspect-oriented programming makes it more realistic by separation of scheduling code. QoSWeaver also provides a profile-based pointcut generator, which automatically generates pointcuts for fine-grained scheduling. To investigate the ability of QoSWeaver for implementing practical scheduling policies, we used QoSWeaver for tuning the performance of a river monitoring system named Kasendas. For reliable examination, Kasendas was originally developed by an outside corporation and then it was tuned by the authors with QoSWeaver. The authors could successfully improve the performance of Kasendas under heavy workload and the work of the performance tuning was not large.
Podcasting Hacks
Authors: Jack Herrington
Venue:  (2005)

Podcasting does for Internet audio listeners what TiVo does for television viewers--it puts you in charge of when you enjoy a program. Podcasting is a web-based broadcast medium that sends audio content (most commonly in the MP3 format) directly to an iPod or other digital audio player. You subscribe to audio feeds, receive new files automatically, and listen to them at your convenience. As you can imagine, podcasting is taking the "blogsphere" by storm. A podcast is a professional-quality Internet radio broadcast, and like blogging and HTML before it, this revolutionary new way of publishing to the Internet has become the new outlet for personal expression. If you've got Internet access and a copy of Podcasting Hacks, you can find out just how easy it is to listen to and create your own Internet audio programs. With Podcasting Hacks, Jack Herrington, a software engineer with 20 years of experience developing applications using a diverse set of languages and tools, delivers the ultimate how-to of podcasting for anyone looking to get the most out of this hot new medium. Since August 2004 (the month that iPodder.com editor Adam Curry considers the start of podcasting), audio blogging has exploded. Podcasts cover every conceivable topic, including sex, relationships, technology, religion, home brewing, recreational drugs, rock 'n roll, food, entertainment, politics, and much more. There were podcasts from the Democratic National Convention in Fall 2004, and some programs on Air America and NPR are also podcasts. Podcasting Hacks offers expert tips and tools for blogging out loud--for transmitting (and receiving) audio content worldwide with ease. This groundbreaking volume covers both entry-level and advanced topics perfect for aspiring and experienced podcasters. Herrington shows you how to get started, create quality sound, use the right software, develop a great show, distribute a podcast, and build an audience. More advanced topics include audio editing, podcasting on the go, and even videocasting.
Region partition and feature matching based color recognition of tongue image
Authors: Yong-Gang Wang, Jie Yang, Yue Zhou, Yu-Zhong Wang
Venue: Pattern Recognition Letters (2007)

Color recognition of tongue image is one of the key tasks in a computerized tongue inspection system in traditional Chinese medicine (TCM). Most existing methods carry out pixel-wise classification in a tongue image without considering regional information which is essential for TCM doctors to retrieve the color distribution of the substances and coatings of the tongue in its diagnosis. This paper presents a novel color recognition scheme. A color-texture segmentation algorithm has been firstly developed to obtain a number of homogenous regions; then these regions were classified into different categories of colors of substances and coatings based on Earth Mover's distance (EMD). We also have employed the locally linear embedding (LLE) technique to eliminate the discrepancies among samples. Finally, the experimental results have shown that the proposed approach was superior to the pixel-wise classification algorithm especially in achieving meaningful areas of substances and coatings of tongue and its performance was well accepted by TCM doctors.
Detecting fingerprint minutiae by run length encoding scheme
Authors: Jung-Hwan Shin, Hui-Yeoun Hwang, Sung-Il Chien
Venue: Pattern Recognition (2006)

Many approaches to minutiae extraction have already been proposed for automatic fingerprint matching, and most transform fingerprint images into binary images through state-of-the-art algorithms and submit the binary image to a thinning process. However, this paper proposes an original technique for extracting minutiae based on representing the ridge structure of a fingerprint image as a run length code (RLC). The essential idea is to detect minutiae by searching for the termination points or bifurcation points of ridges in the RLC, rather than in a fingerprint image. Experimental results and a comparative analysis show that the proposed method is fairly reliable and faster than a conventional thinning-based method.
'Representing the User' in software development-a cultural analysis of usability work in the product development context
Authors: N. Iivari
Venue: Interacting with Computers (2006)

It is widely accepted that users should be involved in the development of interactive systems. However, involving users in interactive systems development is challenging, especially in product development. The organizational culture is a key factor affecting the successes and failures of organizational change and development efforts. This paper shows how user involvement is intertwined with the organizational cultures in a case study of five software development organizations. User involvement is indirect in the case organizations, and labeled as usability work. Using cross case analysis, four 'cultures of usability work' are identified. The cultures have distinct cultural characteristics, employ different approaches to usability work, and have different preferences and strategies for the prospective facilitation of usability work. Sensitivity to the cultural context is identified as an important consideration in the facilitation of usability work, and culturally compatible strategies for usability work in different cultural settings are identified. The paper concludes that there might not be one 'best, universally valid, context free way' of introducing and carrying out usability work in software product development organizations.
Design and Implementation of Remote Device Access Facility to Support Device Migration
Authors: Ryota Ozaki, Soichiro Hidaka, Kazuya Kodama, Katsumi Maruyama
Venue: IEICE - Transactions on Information and Systems (2007)

Wireless connections between computers and devices introduce a new problem called device migration, which is the dynamic switching of a connection between a computer and a device. This paper describes a new system called the Network Extended Device Management System (NextD), which enables users to continue using a device even if device migration occurs. NextD's functions are device tracking, remote device access, seamless switching, and providing services over network boundaries. The system supports many device types, including a human interface device (HID) and audio and voice devices over both wireless and wired connections. We have implemented NextD on Linux. Experimental results showed that NextD is capable of supporting HIDs, and audio and voice devices, and that its processing time for a device migration is sufficient enough for actual use.
Ranking and selection with multiple "targets"
Authors: Douglas J. Morrice, John C. Butler
Venue: Proceedings of the 38th conference on Winter simulation (2006)

Managers of large industrial projects often measure performance by multiple attributes. In previous work, we developed a multiattribute ranking and selection procedure to allow tradeoffs between conflicting objectives. More recent developments in ranking and selection incorporate the notion of "constraints", or "targets", that must be satisfied. In this paper we demonstrate how some forms of single attribute utility functions can be used to create a target or constraint. We re-analyze our original problem under the assumption that there are unacceptable levels for some attributes.
Efficient simulation of population overflow in parallel queues
Authors: Victor F. Nicola, Tatiana S. Zaburnenko
Venue: Proceedings of the 38th conference on Winter simulation (2006)

In this paper we propose a state-dependent importance sampling heuristic to estimate the probability of population overflow in networks of parallel queues. This heuristic approximates the "optimal" state-dependent change of measure without the need for difficult mathematical analysis or costly optimization involved in adaptive methodologies. Comprehensive simulations of networks with an arbitrary number of parallel queues and different traffic intensities yield asymptotically efficient estimates (with relative error increasing sub-linearly in the overflow level) where no other state-independent importance sampling techniques are known to be efficient. The efficiency of the proposed heuristic surpasses those based on adaptive importance sampling algorithms, yet it is easier to determine and implement and scales better for large networks.
CCNP BCRAN Exam Cram 2 (642-821)
Authors: Eric Quinn, Fred Glauser
Venue:  (2003)

Your resource to passing the Cisco CCNP BCRAN Certification Exam!Join the ranks of readers who have trusted Exam Cram 2 to their certification preparation needs! The CCNP BCRAN Exam Cram 2 (Exam 642-821) is focused on what you need to know to pass the CCNP BCRAN exam. The Exam Cram 2 Method of Study provides you with a concise method to learn the exam topics. The book includes tips, exam notes, acronyms and memory joggers in order to help you pass the exam.Included in the CCNP BCRAN Exam Cram 2: A tear-out "Cram Sheet" for last minute test preparation. Updated for the latest exam objectives to cover exam 642-821. The PrepLogic Practice Tests, test engine to simulate the testing environment and test your knowledge.Trust in the series that has helped many others achieve certification success - Exam Cram 2.
MCAD/MCSD Training Guide (70-310): Developing XML Web Services and Server Components with Visual Basic .NET and the .NET Framework
Authors: Mike Gunderloy
Venue:  (2003)

This certification exam measures your ability to develop and implement middle-tier components, server components, and XML Web services by using Visual Studio .NET and the Microsoft .NET Framework. This exam counts as a core credit toward the new MCAD (Microsoft Certified Application Developer) certification as well as a core credit toward the new MCSD .NET track.The Training Guide series is the most successful self-study tool in the market. Its teaching methodology is superior. The accompanying CD features PrepLogic testing software, which includes one complete PrepLogic Practice Test with approximately the same number of questions found on the actual vendor exam. Each question contains full, detailed explanations of the correct and incorrect answers. You can also find outstanding Web site support at www.examcram.com.This book is your one-stop shop!
Function memoization and unique object representation for ACL2 functions
Authors: Robert S. Boyer, Warren A. Hunt,  Jr.
Venue: Proceedings of the sixth international workshop on the ACL2 theorem prover and its applications (2006)

We have developed an extension of ACL2 that includes the implementation of hash-based association lists and function memoization; this makes some algorithms execute more quickly. This extension, enabled partially by the implementation of Hash-CONS, represents ACL2 data objects in a canonical way, thus the comparison of any two such objects can be determined without the cost of descending through their CONS structures. A restricted set of ACL2 user-defined functions may be memoized; the underlying implementation may conditionally retain the values of such function calls so that if a repeated function application is requested, a previously computed value may instead be returned. We have defined a fast association list access and update functions using hash tables. We provide a file reader that identifies and eliminates duplicate representations of repeated objects, and a file printer that produces output with no duplicate subexpressions.