ppxscal/embedding_network huggingface dataset:
A: an assertion language for distributed systems
Authors: Andrew Tjang, Fabio Oliveira, Richard P. Martin, Thu D. Nguyen
Venue: Proceedings of the 3rd workshop on Programming languages and operating systems: linguistic support for modern operating systems (2006)

Operator mistakes have been identified as a significant source of unavailability in Internet services. In this paper, we propose a new language, A, for service engineers to write assertions about expected behaviors, proper configurations, and proper structural characteristics. This formalized specification of correct behavior can be used to bolster system understanding, as well as help to flag operator mistakes in a distributed system. Operator mistakes can be caused by anything from static misconfiguration to physical placement of wires and machines. This language, along with its associated runtime system, seeks to be flexible and robust enough to deal with the wide array of operator mistakes while maintaining a simple interface for designers or programmers.
Build it for the Real World: A Database Workbook, 4 edition
Authors: Mary J. Hoferek, Susan Wilson
Venue:  (2004)

Learn about databases by doing ¿ multiple exercises from beginning through intermediate database creation are clearly presented in a logical framework. Once the student has mastered the creation of databases the book explores the possibility of changes in requirements that will force structural changes to databases and how the student can make good use of some maintenance features and processing issues that may need to be resolved in production databases. Finally the book focuses on some exercises that will give the student a feel for some of the newer capabilities in object relational databases.Table of contentsGetting Started Basic Database Creation Exercises Logical Design DDL or Schema Objects Load Data Retrieve the Data Intermediate Exercises Logical Design Creating more Detailed Objects in DDL Loading Data Retrieving Data Beginning Maintenance Logical Design: Reverse Engineer from the Data Dictionary Maintain and Test Some DBMS Features Basic Performance Testing Small Benchmark Paper Object Relational Exercises Logical Design Create a Type Create Variable Array Create a BLOB Data Type References Web sites Bibiliography
A new category of Hermitian upwind schemes for computational acoustics - II: two-dimensional aeroacoustics
Authors: G. Capdeville
Venue: Journal of Computational Physics (2006)

This is the second paper of a series in which we build and study third-order Hermitian upwind schemes for numerically solving linear aeroacoustics. In this paper, we extend the method to non-stationary flows. For this purpose, we employ a family of six-wave models to discretize the space operator. This family is parametrized by an "acoustic propagation angle". From this wave modelling, specific boundary conditions are proposed to treat effectively subsonic/supersonic boundary conditions. A sequence of numerical simulations is then carried out and makes it possible to examine the effectiveness of the scheme.
Campus Network Design Fundamentals
Authors: Diane Teare, Catherine Paquet
Venue:  (2005)

The all-in-one guide to modern routed and switched campus network designï¾ Understand the network design process and network design models Learn how switches are used in network design Design an IP addressing plan and select appropriate IP routing protocols Apply network security design principles to boost network security Enable WLANs to improve workforce mobility Examine QoS design requirements and tools Unleash the power of voice transport over data networks, including VoIP and IP telephony Use content networking to provide content to users quickly and efficiently Learn how to integrate network management protocols and tools into network designs Understand how to effectively integrate IP multicast, high availability, storage networking, and IPv6 into your network designsOver the past decade, campus network design has evolved many times as new technologies have emerged and business needs have changed. For enterprises to take advantage of cost-saving, productivity-enhancing solutions, such as IP telephony and content networking, their core infrastructures must include the key enabling technologies required by these solutions and provide a resilient, secure foundation that can scale to business needs. As with any architecture, designing a solid foundation is the first step.Campus Network Design Fundamentals is an all-in-one guide to key technologies that can be integrated into network design. The book provides insight into why each technology is important and how to apply this knowledge to create a campus network that includes as many or as few of today's productivity-enhancing applications as are needed in your environment. Topics covered throughout the book include network design process and models, switching, IP routing, quality of service (QoS), security, wireless LANs (WLANs), voice transport, content networking, network management, IPv6, IP multicast, increasing network availability, and storage networking. Sample network designs are included through-out, and the book concludes with a comprehensive case study that illustrates the design process and solutions for headquarters, branch offices, and home office/remote users.Whether you need an overview of modern campus technologies or seek advice on how to design switched and routed networks that securely support these technologies, this book is your comprehensive resource to the foundations upon which all modern-day campus networks are based.This book is part of the Cisco Press® Fundamentals Series. Books in this series introduce networking professionals to new networking technologies, covering network topologies, example deployment concepts, protocols, and management techniques.
Absolute Beginner's Guide to Podcasting (Absolute Beginner's Guide)
Authors: George Colombo, Curtis Franklin
Venue:  (2005)

Has anyone ever told you that you should be on radio? While radio can be hard to break into, podcasting lets you put your voice and talents to work to create your own broadcast to be distributed over the Internet to millions of people. Absolute Beginner's Guide to Podcasting is the aspiring podcaster's handbook. Authors George Colombo and Curtis Franklin will guide you through creating, editing, and syndicating your podcast, from the kinds of equipment you need to how to design a podcast that will reach the widest audience possible to legal issues faced by podcasters. You'll also learn how to: Design a podcast that grabs - and keeps - an audience! Choose the right tools - recording software, microphones, and other equipment Create an engaging show persona - podcasting is more than just talking! Craft your 'cast into a show worth listening to with post-production secrets of the pros Set up a web page and RSS feed that will allow listeners to subscribe to your podcast Efffectively promote your podcastThe tips inside Absolute Beginner's Guide to Podcasting will guide you towards creating a fun and successful podcast.
Inside Network Perimeter Security (2nd Edition) (Inside)
Authors: Stephen Northcutt, Lenny Zeltser, Scott Winters, Karen Kent, Ronald W. Ritchey
Venue:  (2005)

Security professionals and administrators now have access to one of the most valuable resources for learning best practices for network perimeter security. Inside Network Perimeter Security, Second Edition is your guide to preventing network intrusions and defending against any intrusions that do manage to slip through your perimeter. This acclaimed resource has been updated to reflect changes in the security landscape, both in terms of vulnerabilities and defensive tools. Coverage also includes intrusion prevention systems and wireless security. You will work your way through fortifying the perimeter, designing a secure network, and maintaining and monitoring the security of the network. Additionally, discussion of tools such as firewalls, virtual private networks, routers and intrusion detection systems make Inside Network Perimeter Security, Second Edition a valuable resource for both security professionals and GIAC Certified Firewall Analyst certification exam candidates.
Modeling and Optimization for the Design of IMS Networks
Authors: Nisha Rajagopal, Michael Devetsikiotis
Venue: Proceedings of the 39th annual Symposium on Simulation (2006)

The IP Multimedia Subsystem (IMS) is envisioned as the solution for the next generation multimedia rich communication. Based on an open IP infrastructure, it enables convergence of data, speech, video and mobile network technology. The Session Initiation Protocol (SIP) is the signaling protocol chosen by the 3GPP consortium for IMS. We propose to analyze the IMS network based on the SIP signaling delay and predict performance trends of the network, that allow us to choose parameter values optimally. The paper focuses on the formulation of queuing models for the IMS network and characterization of the SIP server workload, and on a methodology for the design of such networks for optimal performance. Our analysis is based on a careful study of real-life SIP network traffic.
A dynamic competition analysis on the Korean mobile phone market using competitive diffusion model
Authors: Jonghwa Kim, Deok-Joo Lee, Jaekyoung Ahn
Venue: Computers and Industrial Engineering (2006)

The purpose of this paper is to estimate the demand function of mobile phone subscription in Korea, with an explicit consideration of market competition effects, and to empirically clarify the dynamic competitive relationship between the cellular and PCS services. The demand function was estimated using the Lotka-Volterra model, a famous competitive diffusion model. In addition, the characteristics of the dynamic competitive relationship in the Korean mobile phone market are empirically examined, including the existence of an equilibrium point and its stability with the estimated demand function. The results show that competitive relationship in the Korean mobile phone market exhibits a kind of commensalisms, in which the PCS market benefits from the existence of the cellular market, while the number of cellular subscribers is hardly affected by the PCS market. Furthermore, it is shown that the competition between the cellular and PCS services has a dynamic equilibrium point that is partially stable.
Home Network Security Simplified (Networking Technology)
Authors: Jim Doherty, Neil Anderson
Venue:  (2006)

A straightforward, graphic-based reference for securing your home networkï¾ Set up a firewall Secure your wireless network Stop adware and spyware Keep your children safe from online threats Prevent a virus outbreak Avoid Internet scamsï¾ Phishing. Malware. Spyware. Trojan horses. Firewalls. Parental controls. If you have a home computer connected to the Internet, you need to understand these security terms. If that connection is high-speed (always on) or you run a wireless network, your needï¾your vulnerabilityï¾is that much greater. Now, with Home Network Security Simplified, you can get illustrated, easy-to-digest information written specifically for your needs.For each class of security threat, Home Network Security Simplified provides a tutorialï¾including tricks and tools that hackers use, a primer on network security design fundamentals, and step-by-step instructions on implementing security solutions. The authors also offer tips for monitoring your network and show what to do in the event of a security breach. Specifically, you will learn how to:Home Network Security Simplified features engaging four-color illustrations throughout, as well as informative security tips and pointers to other resources for more advanced information. Use this book to find the peace of mind that comes with knowing that your home network and your information are secure.Jim Doherty is the director of marketing and programs with Symbol Technologies' industry solutions group. Prior to joining Symbol, Jim worked at Cisco Systems, where he led various marketing campaigns for IP telephony and routing and switching solutions. Jim has 17 years of engineering and marketing experience across a broad range of networking and communications technologies. Jim is a coauthor of the Networking Simplified series, including Cisco Networking Simplified, Home Networking Simplified, and Internet Phone Services Simplified. He is also the author of the “Study Notes” section of CCNA Flash Cards and Exam Practice Pack (CCNA Self-Study, Exam #640-801), Second Edition. Jim is a former Marine Corps sergeant; he holds a bachelor's degree in electrical engineering from N.C. State University and a master's degree in business administration from Duke University.Neil Anderson is the senior manager of enterprise systems engineering at Cisco Systems. Neil has more than 20 years of engineering experience including public telephone systems, mobile phone systems, Internet, and home networking. At Cisco, Neil's focus is large corporate customers in the areas of routing and switching, wireless, security, and IP communications. Neil is a coauthor of the Networking Simplified series, including Home Networking Simplified and Internet Phone Services Simplified. Neil holds a bachelor's degree in computer science.This book is part of the Networking Technology Series from Cisco Press®, the only authorized publisher for Cisco Systems.
The role of short-term depression in sustained neural activity in the prefrontal cortex: a simulation study
Authors: Yasunobu Igarashi, Yuichi Sakumura, Shin Ishii
Venue: Neural Networks (2006)

Recent experimental researches have suggested that sustained neural activity in the prefrontal cortex is a process of memory retention in decision making. Previous theoretical studies indicate that a balance between recurrent excitation and feedback inhibition is important for sustaining the activity. To investigate a plausible balancing mechanism, we simulated a biophysically realistic network model. Our model shows that short-term depression (STD) enables the network to sustain its activity despite the presence of long-term inhibition by GABAB receptors and that the sustained firing rates have a bell-shaped dependence on the degree of STD. By analyzing the neural network dynamics, we show that the bell-shaped dependence on STD is formed by destabilizing the balance with either excessive or insufficient STD. We also show that the optimal degree of STD has a linear relationship with the neural network size. These results suggest that STD provides a balancing mechanism and controls levels of sustained activities of various size networks.
Toward routine billion-variable optimization using genetic algorithms: Short Communication
Authors: David E. Goldberg, Kumara Sastry, Xavier Llorà
Venue: Complexity (2007)

The push for better understanding and design of complex systems requires the solution of challenging optimization problems with large numbers of decision variables. This note presents principled results demonstrating the scalable solution of a difficult test function on instances over a billion variables using a parallel implementation of a genetic algorithm (GA). The problem addressed is a noisy, blind problem over a vector of binary decision variables. Noise is added equaling a tenth of the deterministic objective function variance of the problem, thereby making it difficult for simple hillclimbers to find the optimal solution. The genetic algorithm used&mdash;the compact GA&mdash;is able to find the optimum in the presence of noise quickly, reliably, and accurately, and the solution scalability follows known convergence theories. These results on noisy problem together with other results on problems involving varying modularity, hierarchy, and overlap foreshadow routine solution of billion-variable problems across the landscape of complexity science. &copy; 2007 Wiley Periodicals, Inc. Complexity 12: 27&ndash;29, 2007
SPICE Circuit Handbook, 1 edition
Authors: Steven M. Sandler
Venue:  (2006)

The expert guidance needed to customize your SPICE circuits Over the past decade, simulation has become an increasingly integral part of the electronic circuit design process. This resource is a compilation of 50 fully worked and simulated Spice circuits that electronic designers can customize for use in their own projects. Unlike traditional circuit encyclopedias Spice Circuit Handbook is unique in that it provides designers with not only the circuits to use but the techniques to simulate their customization. Table of contentsChapter 1: IntroductionChapter 2: Description of the PSpice, IsSpice, SIMetrix, and Micro-Cap SimulatorsChapter 3: Filter CircuitsChapter 4: Power Conversion CircuitsChapter 5: Electronic Load CircuitsChapter 6: Instrumentation CircuitsChapter 7: Logic CircuitsChapter 8: Resonator/Oscillator CircuitsChapter 9: Gate Drive CircuitsINDEX
Spatial correlation-based collaborative medium access control in wireless sensor networks
Authors: Mehmet C. Vuran, Ian F. Akyildiz
Venue: IEEE/ACM Transactions on Networking (TON) (2006)

Wireless Sensor Networks (WSN) are mainly characterized by dense deployment of sensor nodes which collectively transmit information about sensed events to the sink. Due to the spatial correlation between sensor nodes subject to observed events, it may not be necessary for every sensor node to transmit its data. This paper shows how the spatial correlation can be exploited on the Medium Access Control (MAC) layer. To the best of our knowledge, this is the first effort which exploits spatial correlation in WSN on the MAC layer. A theoretical framework is developed for transmission regulation of sensor nodes under a distortion constraint. It is shown that a sensor node can act as a representative node for several other sensor nodes observing the correlated data. Based on the theoretical framework, a distributed, spatial Correlation-based Collaborative Medium Access Control (CC-MAC) protocol is then designed which has two components: Event MAC (E-MAC) and Network MAC (N-MAC). E-MAC filters out the correlation in sensor records while N-MAC prioritizes the transmission of route-thru packets. Simulation results show that CC-MAC achieves high performance in terms energy, packet drop rate, and latency.
Preserving boundaries for image texture segmentation using grey level co-occurring probabilities
Authors: Rishi Jobanputra, David A. Clausi
Venue: Pattern Recognition (2006)

Texture analysis has been used extensively in the computer-assisted interpretation of digital imagery. A popular texture feature extraction approach is the grey level co-occurrence probability (GLCP) method. Most investigations consider the use of the GLCP texture features for classification purposes only, and do not address segmentation performance. Specifically, for segmentation, the pixels in an image located near texture boundaries have a tendency to be misclassified. Boundary preservation when using the GLCP texture features for image segmentation is important. An advancement which exploits spatial relationships has been implemented. The generated features are referred to as weighted GLCP (WGLCP) texture features. In addition, an investigation for selecting suitable GLCP parameters for improved boundary preservation is presented. From the tests, WGLCP features provide improved boundary preservation and segmentation accuracy at a computational cost. As well, the GLCP correlation statistical parameter should not be used when segmenting images with high contrast texture boundaries.
Generalized sharing in survivable optical networks
Authors: Maher Ali
Venue: IEEE/ACM Transactions on Networking (TON) (2006)

Shared path protection has been demonstrated to be a very efficient survivability scheme for optical networking. In this scheme, multiple backup paths can share a given optical channel if their corresponding primary routes are not expected to fail simultaneously. The focus in this area has been the optimization of the total channels (i.e., bandwidth) provisioned in the network through the intelligent routing of primary and backup routes. In this work, we extend the current path protection sharing scheme and introduce the Generalized Sharing Concept. In this concept, we allow for additional sharing of important node devices. These node devices (e.g., optical-electronic-optical regenerators (OEOs), pure all-optical converters, etc.) constitute the dominant cost factor in an optical backbone network and the reduction of their number is of paramount importance. For demonstration purposes, we extend the concept of 1:N shared path protection to allow for the sharing of electronic regenerators needed for coping with optical transmission impairments. Both design and control plane issues are discussed through numerical examples. Considerable cost reductions in electronic budget are demonstrated.
Evaluating network processing efficiency with processor partitioning and asynchronous I/O
Authors: Tim Brecht, G. (John) Janakiraman, Brian Lynn, Vikram Saletore, Yoshio Turner
Venue: ACM SIGOPS Operating Systems Review (2006)

Applications requiring high-speed TCP/IP processing can easily saturate a modern server. We and others have previously suggested alleviating this problem in multiprocessor environments by dedicating a subset of the processors to perform network packet processing. The remaining processors perform only application computation, thus eliminating contention between these functions for processor resources. Applications interact with packet processing engines (PPEs) using an asynchronous I/O (AIO) programming interface which bypasses the operating system. A key attraction of this overall approach is that it exploits the architectural trend toward greater thread-level parallelism in future systems based on multi-core processors. In this paper, we conduct a detailed experimental performance analysis comparing this approach to a best-practice configured Linux baseline system.We have built a prototype system implementing this architecture, ETA+AIO (Embedded Transport Acceleration with Asynchronous I/O), and ported a high-performance web-server to the AIO interface. Although the prototype uses modern single-core CPUs instead of future multi-core CPUs, an analysis of its performance can reveal important properties of this approach. Our experiments show that the ETA+AIO prototype has a modest advantage over the baseline Linux system in packet processing efficiency, consuming fewer CPU cycles to sustain the same throughput. This efficiency advantage enables the ETA+AIO prototype to achieve higher peak throughput than the baseline system, but only for workloads where the mix of packet processing and application processing approximately matches the allocation of CPUs in the ETA+AIO system thereby enabling high utilization of all the CPUs. Detailed analysis shows that the efficiency advantage of the ETA+AIO prototype, which uses one PPE CPU, comes from avoiding multiprocessing overheads in packet processing, lower overhead of our AIO interface compared to standard sockets, and reduced cache misses due to processor partitioning.