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University of California
(1028 results)-
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Privacy Concerns in Upcoming Demand-Response Systems
October 20, 2009, 12:00am PDT
The collection of power consumption data in current and future demand-response systems creates serious privacy concerns. In a lax regulatory environment, the detailed household consumption data...
Provided by University of California
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White Papers
FingerGlass: Efficient Multiscale Interaction on Multitouch Screens
May 12, 2011, 12:00am PDT
Many tasks in graphical user interfaces require users to interact with elements at various levels of precision. The authors present FingerGlass, a bimanual technique designed to improve the...
Provided by University of California
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White Papers
Wireless Health and the Smart Phone Conundrum
March 31, 2009, 12:00am PDT
This paper presents a study of the five best selling Smart Phones in terms of their applicability to Wireless Health. Smart Phones are generally used as central controlling units in Wireless...
Provided by University of California
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White Papers
Do Americans Consume Too Little Natural Gas? An Empirical Test Of Marginal Cost Pricing
September 1, 2009, 12:00am PDT
A standard result in regulation is that efficiency requires that marginal prices be set equal to marginal costs. This paper performs an empirical test of marginal cost pricing in the natural gas...
Provided by University of California Energy Institute
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White Papers
Taxes And Trading Versus Intensity Standards: Second-Best Environmental Policies With Incomplete Regulation (Leakage) Or Market Power
August 17, 2009, 12:00am PDT
This paper investigates whether an emissions tax is the best policy in the presence of incomplete regulation (leakage) or market power by analyzing an intensity standard regulating emissions per...
Provided by University of California Energy Institute
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White Papers
What Do Emissions Markets Deliver And To Whom? Evidence From Southern California?s NOx Trading Program
June 9, 2009, 12:00am PDT
A perceived advantage of cap-and-trade programs over more prescriptive environmental regulation is that enhanced compliance flexibility and cost effectiveness can make more stringent emissions...
Provided by University of California Energy Institute
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White Papers
Explaining The Price Of Voluntary Carbon Offsets
September 8, 2009, 12:00am PDT
This paper investigates factors that explain the large variability in the price of voluntary carbon offsets. The authors estimate hedonic price functions using a variety of provider- and...
Provided by University of California Energy Institute
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White Papers
The Implications Of A Gasoline Price Floor For The California Budget And Greenhouse Gas Emissions
December 12, 2008, 12:00am PST
California is faced with an unprecedented budget crisis. The state is also committed to significant reductions in greenhouse gases that cause climate change. Meanwhile, the price of gasoline is...
Provided by University of California Energy Institute
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White Papers
Cost, Conflict And Climate: U.S. Challenges In The World Oil Market
June 1, 2008, 12:00am PDT
Dramatic increases in the price of crude oil since mid-2007 have ratcheted up attention on energy policy, but cost is only one of the three oil challenges that confront the U.S. In this short...
Provided by University of California Energy Institute
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White Papers
The Cost Of Inflation: A Mechanism Design Approach
January 1, 2011, 12:00am PST
A classical topic in monetary economics is measuring the burden that inflation imposes on society. The standard methodology, pioneered by Bailey (1956) and Friedman (1969) and reviewed in Lucas...
Provided by University of California
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White Papers
Improving Signature Testing Through Dynamic Data Flow Analysis
December 11, 2007, 12:00am PST
The effectiveness and precision of network-based intrusion detection signatures can be evaluated either by direct analysis of the signatures (if they are available) or by using black-box testing...
Provided by University of California
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White Papers
Analyzing and Detecting Malicious Flash Advertisements
June 10, 2010, 12:00am PDT
The amount of dynamic content on the web has been steadily increasing. Scripting languages such as JavaScript and browser extensions such as Adobe's Flash have been instrumental in creating...
Provided by University of California
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White Papers
Removing Web Spam Links From Search Engine Results
March 31, 2009, 12:00am PDT
Web spam denotes the manipulation of web pages with the sole intent to raise their position in search engine rankings. Since a better position in the rankings directly and positively affects the...
Provided by University of California
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White Papers
The Tradeo Between Energy Efficiency and User State Estimation Accuracy in Mobile Sensing
August 18, 2009, 12:00am PDT
People-centric sensing and user state recognition can provide rich contextual information for various mobile applications and services. However, continuously capturing this contextual information...
Provided by University of California
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White Papers
A Parallel Architecture for Stateful, High-Speed Intrusion Detection
September 22, 2008, 12:00am PDT
The increase in bandwidth over processing power has made stateful intrusion detection for high-speed networks more difficult, and, in certain cases, impossible. The problem of real-time stateful...
Provided by University of California
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White Papers
Static Analysis for Detecting Taint-Style Vulnerabilities in Web Applications
September 29, 2010, 12:00am PDT
The number and the importance of web applications have increased rapidly over the last years. At the same time, the quantity and impact of security vulnerabilities in such applications have grown...
Provided by University of California
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White Papers
A View on Current Malware Behaviors
April 1, 2009, 12:00am PDT
Anubis is a dynamic malware analysis platform that executes submitted binaries in a controlled environment. To perform the analysis, the system monitors the invocation of important Windows API...
Provided by University of California
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White Papers
Automatic Network Protocol Analysis
December 16, 2007, 12:00am PST
Protocol reverse engineering is the process of extracting application-level specifications for network protocols. Such specifications are very helpful in a number of security-related contexts. For...
Provided by University of California
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White Papers
Effective Anomaly Detection With Scarce Training Data
April 22, 2010, 12:00am PDT
Learning-based anomaly detection has proven to be an effective black-box technique for detecting unknown attacks. However, the effectiveness of this technique crucially depends upon both the...
Provided by University of California
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White Papers
Inspector Gadget: Automated Extraction of Proprietary Gadgets From Malware Binaries
April 22, 2010, 12:00am PDT
Unfortunately, malicious software is still an unsolved problem and a major threat on the Internet. An important component in the fight against malicious software is the analysis of malware...
Provided by University of California
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White Papers
Identifying Dormant Functionality in Malware Programs
March 5, 2010, 12:00am PST
To handle the growing flood of malware, security vendors and analysts rely on tools that automatically identify and analyze malicious code. Current systems for automated malware analysis typically...
Provided by University of California
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White Papers
Toward Automated Detection of Logic Vulnerabilities in Web Applications
November 30, 2010, 12:00am PST
Web applications are the most common way to make services and data available on the Internet. Unfortunately, with the increase in the number and complexity of these applications, there has also...
Provided by University of California
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White Papers
There Is No Free Phish: An Analysis of Free and Live Phishing Kits
July 14, 2008, 12:00am PDT
Phishing is a form of identity theft in which an attacker attempts to elicit confidential information from unsuspecting victims. While in the past there has been significant work on defending from...
Provided by University of California
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White Papers
Protecting a Moving Target: Addressing Web Application Concept Drift
June 11, 2010, 12:00am PDT
Because of the ad hoc nature of web applications, intrusion detection systems that leverage machine learning techniques are particularly well-suited for protecting websites. The reason is that...
Provided by University of California
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White Papers
Optimization of SiGe VCOs for Wireless Applications
January 1, 2011, 12:00am PST
This paper describes the optimization of phase noise performance in fully integrated SiGe HBT differential LC-tuned Voltage Controlled Oscillators (VCOs) for wireless applications. An accurate...
Provided by University of California
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White Papers
Assessing the VANET's Local Information Storage Capability Under Different Traffic Mobility
July 2, 2010, 12:00am PDT
Wireless networking enabled vehicles can form Vehicular Ad hoc Mesh Networks (VMesh). By cooperative communication among VMeshes, a local transient information could be "Retained" within a given...
Provided by University of California
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White Papers
Smoothing Vehicular Traffic Flow With VGrid
July 31, 2009, 12:00am PDT
In this paper the authors explore a distributed application used to smooth traffic and reduce long term traffic incidents. To do this they use VGrid: An ad hoc networking and computing grid formed...
Provided by University of California
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White Papers
Cognitive Radio Enabled Multi-Channel Access for Vehicular Communications
May 8, 2010, 12:00am PDT
The IEEE 1609.4 standard has been proposed to provide multi-channel operations in Wireless Access for Vehicular Environments (WAVE), where all the channels are periodically synchronized into...
Provided by University of California
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White Papers
ViRe: Virtual Reconfiguration Framework for Embedded Processing in Distributed Image Sensors
February 14, 2008, 12:00am PST
Image processing applications introduce new challenges to the design of sensor network systems via non-trivial in-network computation. As embedded processing becomes more complex, in-situ...
Provided by University of California
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White Papers
Diagnostic Quality Driven Physiological Data Collection for Personal Healthcare
June 27, 2008, 12:00am PDT
The authors believe that each individual is unique, and that it is necessary for diagnosis purpose to have a distinctive combination of signals and data features that fits the personal health...
Provided by University of California
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White Papers
Tiered Architecture for On-Line Detection, Isolation and Repair of Faults in Wireless Sensor Networks
June 29, 2008, 12:00am PDT
Wireless sensor networks fuse data from a multiplicity of sensors of different modalities and spatiotemporal scales to provide information for reconnaissance, surveillance, and situational...
Provided by University of California
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White Papers
MobiSense - Mobile Network Services for Coordinated Participatory Sensing
January 11, 2009, 12:00am PST
Cellular and Wi-Fi networks now form a global substrate that provides billions of mobile phone users with consistent, location-aware communication and multimedia data access. On this substrate is...
Provided by University of California
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White Papers
Angle-of-Arrival-Assisted Relative Interferometric Localization Using Software Defined Radios
August 29, 2009, 12:00am PDT
In this work, the authors present SDR-ARI a Software Defined Radio (SDR) approach to an Angle-of-arrival-assisted Relative Interferometric (ARI) RADAR transceiver. It has a number of desirable...
Provided by University of California
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White Papers
Variability-Aware Duty Cycle Scheduling in Long Running Embedded Sensing Systems
December 12, 2010, 12:00am PST
Instance and temperature-dependent leakage power variability is already a significant issue in contemporary embedded processors, and one which is expected to increase in importance with scaling of...
Provided by University of California
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White Papers
A Case for Opportunistic Embedded Sensing in Presence of Hardware Power Variability
September 3, 2010, 12:00am PDT
The system lifetime gains provided by the various power management techniques in embedded sensing systems are a strong function of the active and sleep mode power consumption of the underlying...
Provided by University of California
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White Papers
Quality Tradeoffs in Object Tracking With Duty-Cycled Sensor Networks
September 2, 2010, 12:00am PDT
Extending the lifetime of wireless sensor networks requires energy-conserving operations such as duty-cycling. However, such operations may impact the effectiveness of high-fidelity real-time...
Provided by University of California
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White Papers
A Unified CAD-PLM Architecture for Improving Electronics Design Productivity Through Automation, Collaboration, and Cloud Computing
January 31, 2011, 12:00am PST
In electronics design, Computer Aided Design (CAD) tools manage part data in a logical schematic view (a part symbol) and a physical PCB view (a part footprint). Yet, a part has a third view,...
Provided by University of California
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White Papers
Knots: An Efficient Single Stack Preemption Mechanism for Resource Constrained Devices
October 22, 2007, 12:00am PDT
The low-end embedded systems space is characterized by two classes of operating systems: Run-To-Completion (RTC) systems such as Tenos and preemptive multithreading systems such as Mantis. In RTC...
Provided by University of California
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White Papers
Actuation-Assisted External Calibration of Distributed Camera Sensor Networks
July 4, 2007, 12:00am PDT
While cameras have the potential to enable many applications in sensor networks, to be effective they first must be externally calibrated. In prior systems, cameras, identified by controllable...
Provided by University of California
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White Papers
Online Calibration
December 13, 2008, 12:00am PST
Time synchronization is an extremely important service in wireless sensor networks. The notion of time on a node is maintained using crystal oscillators. These oscillators are designed to...
Provided by University of California
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White Papers
A Distributed Algorithm for Optimal Throughput and Fairness in Wireless Networks With a General Interference Model
June 18, 2008, 12:00am PDT
In multi-hop wireless networks, earlier research on joint scheduling and congestion control has suggested that MAC-layer scheduling is the bottleneck. Distributed scheduling for maximal throughput...
Provided by University of California
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White Papers
Entropy in Communication and Chemical Systems
July 31, 2008, 12:00am PDT
Entropy plays a central role in communication systems. On the one hand, the objective of communication is to reduce the entropy of some random variable. On the other hand, many useful models of...
Provided by University of California
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White Papers
Skilled in the Art of Being Idle: Reducing Energy Waste in Networked Systems
February 25, 2009, 12:00am PST
Networked end-systems such as desktops and set-top boxes are often left powered-on, but idle, leading to wasted energy consumption. An alternative would be for these idle systems to enter...
Provided by University of California
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White Papers
Stealthy Poisoning Attacks on PCA-Based Anomaly Detectors
April 22, 2009, 12:00am PDT
The authors consider systems that use PCA-based detectors obtained from a comprehensive view of the network's traffic to identify anomalies in backbone networks. To assess these detectors'...
Provided by University of California
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White Papers
Information Dissemination Control for Cooperative Active Safety Applications in Vehicular Ad-Hoc Networks
March 25, 2009, 12:00am PDT
Vehicular Ad-Hoc NETworks (VANETs) play a critical role in enabling important active safety applications such as collision warning and vehicle tracking. The most pressing challenge in enabling...
Provided by University of California
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White Papers
Distributed Compression and Fusion of Nonnegative Sparse Signals for Multiple-View Object Recognition
May 13, 2009, 12:00am PDT
Visual surveillance in complex urban environments requires an intelligent system to automatically track and identify multiple objects of interest in a network of distributed cameras. The ability...
Provided by University of California
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White Papers
Multiple-View Object Recognition in Band-Limited Distributed Camera Networks
July 3, 2009, 12:00am PDT
In this paper, the authors study the classical problem of object recognition in low-power, low-bandwidth distributed camera networks. The ability to perform robust object recognition is crucial...
Provided by University of California
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White Papers
Towards an Efficient Distributed Object Recognition System in Wireless Smart Camera Networks
May 16, 2010, 12:00am PDT
The authors propose an efficient distributed object recognition system for sensing, compression, and recognition of 3-D objects and landmarks using a network of wireless smart cameras. The...
Provided by University of California
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White Papers
Sparse Online Low-Rank Projection and Outlier Rejection (SOLO) for 3-D Rigid-Body Motion Registration
February 10, 2012, 12:00am PST
Motivated by an emerging theory of robust low-rank matrix representation, in this paper, the authors introduce a novel solution for online rigid-body motion registration. The goal is to develop...
Provided by University of California
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White Papers
Tahakum: A Multi-Purpose Audio Control Framework
June 1, 2011, 12:00am PDT
The authors present "Tahakum", an open source, extensible collection of software tools designed to enhance workflow on multichannel audio systems within complex multi-functional research and...
Provided by University of California
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White Papers
Protecting Network Coded Packets in Coalition Networks
December 14, 2009, 12:00am PST
Network coding was found to be useful for ad hoc wireless multicast in disruptive channel and connectivity conditions. In heterogeneous networks, comprising teams with different technical...
Provided by University of California
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White Papers
Frequency Quorum Rendezvous for Fast and Resilient Key Establishment Under Jamming Attack
July 2, 2010, 12:00am PDT
Jamming attacks have been recently studied as wireless security threats disrupting reliable RF communication in a wireless network. Existing countermeasures often make use of spread-spectrum...
Provided by University of California
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White Papers
Temperature Driven Time Synchronization
May 17, 2009, 12:00am PDT
Time synchronization in embedded sensor networks is an important service for correlating data between nodes and communication scheduling. While many different approaches to the problem are...
Provided by University of California
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White Papers
CORA: Collaborative Opportunistic Recovery Algorithm for Loss Controlled, Delay Bounded Ad Hoc Multicast
July 23, 2008, 12:00am PDT
In this paper, the authors present Collaborative Opportunistic Recovery Algorithm (CORA) designed for multicast multimedia applications with low loss as well as latency constraints in ad hoc...
Provided by University of California
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White Papers
E-ODMRP: Enhanced ODMRP With Motion Adaptive Refresh
April 10, 2008, 12:00am PDT
On Demand Multicast Routing Protocol (ODMRP) is a multicast routing protocol for mobile ad hoc networks. Its efficiency, simplicity, and robustness to mobility render it one of the most widely...
Provided by University of California
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White Papers
Bluetooth 2.1 based Emergency Data Delivery System in HealthNet
December 18, 2007, 12:00am PST
The interests in health care have considerably increased these days as the aging population becomes larger. Health care has grown to the one of most active research areas especially in the area of...
Provided by University of California
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White Papers
Urban-X: Towards Distributed Channel Assignment in Cognitive Multi-Radio Mesh Networks
September 17, 2010, 12:00am PDT
Researches about multi-radio mesh networks have mostly focused on channel allocation under internal interference. However, the deployment of WMNs in unlicensed bands of dense urban areas imposes...
Provided by University of California
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White Papers
Flexible and Secure Communications in an Identity-Based Coalition Environment
August 20, 2008, 12:00am PDT
In this paper, the authors consider the problem of how entities operating under distinct roots of trust in a coalition environment can flexibly and securely communicate with one another. They...
Provided by University of California
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White Papers
Multi-Modal Modeling of Urban Mobility
August 17, 2010, 12:00am PDT
Design and efficacy of a routing protocol for mobile ad-hoc networks strongly depends on the underlying mobility pattern of the mobile nodes. Counter to the perception of mobility being random in...
Provided by University of California
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White Papers
Quantitative Evaluation of Secure Network Coding
August 10, 2010, 12:00am PDT
Network coding has gained significant attention by improving throughput and reliability in disruptive MANETs. Yet, it is vulnerable to attacks from malicious nodes. In order to prevent this...
Provided by University of California
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White Papers
Tessellation: Space-Time Partitioning in a Manycore Client OS
March 3, 2009, 12:00am PST
The authors argue for Space-Time Partitioning (STP) in manycore operating systems. STP divides resources such as cores, cache, and network bandwidth amongst interacting software components....
Provided by University of California
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White Papers
Silicon-Photonic Clos Networks for Global On-Chip Communication
May 1, 2009, 12:00am PDT
Future manycore processors will require energy-efficient, high-throughput on-chip networks. Silicon-photonics is a promising new interconnect technology which offers lower power, higher bandwidth...
Provided by University of California
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White Papers
SEJITS: Getting Productivity and PerformanceWith Selective Embedded JIT Specialization
August 2, 2009, 12:00am PDT
Today's "High productivity" programming languages such as Python lack the performance of harder-to-program "Efficiency" languages (CUDA, Cilk, C with OpenMP) that can exploit extensive programmer...
Provided by University of California
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White Papers
An FPGA-Based Simulator for Datacenter Networks
February 26, 2010, 12:00am PST
The authors describe an FPGA-based datacenter network simulator for researchers to rapidly experiment with O(10,000) node datacenter network architectures. Their simulation approach configures the...
Provided by University of California
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White Papers
Datacenter-Scale Network Research on FPGAs
April 15, 2011, 12:00am PDT
The authors describe an FPGA-based datacenter network simulator to allow researchers to rapidly experiment with O(10, 000) node datacenter network architectures. They configure the FPGA hardware...
Provided by University of California
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White Papers
Real-Time Musical Applications on an Experimental Operating System for Multi-Core Processors
June 24, 2011, 12:00am PDT
A natural approach to increasing the performance of musical applications is to exploit their inherent parallel structure on general-purpose multi-core architectures. In this paper, the authors...
Provided by University of California
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White Papers
Compiler-Driven Dependence Profiling to Guide Program Parallelization
July 21, 2008, 12:00am PDT
As hardware systems move toward multi-core and multithreaded architectures, programmers increasingly rely on automated tools to help with both the parallelization of legacy codes and effective...
Provided by University of California
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White Papers
Lagrangian Sensing: Traffic Estimation With Mobile Devices
January 21, 2009, 12:00am PST
An inverse modeling algorithm is developed to reconstruct the state of traffic on highways (velocity field) from GPS measurements gathered from mobile phones traveling on-board vehicles. The...
Provided by University of California
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White Papers
Detecting BGP Anomalies With Wavelet
December 14, 2007, 12:00am PST
In this paper, the authors propose a BGP anomaly detection framework called BAlet that delivers both temporal and spatial localization of the potential anomalies. It requires only a simple count...
Provided by University of California
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White Papers
Streaming Solutions for Fine-Grained Network Traffic Measurements and Analysis
August 20, 2011, 12:00am PDT
Streaming network traffic measurements and analysis is critical for detecting and preventing any real-time anomalies in the network. The high speeds and complexity of today's network make the...
Provided by University of California
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White Papers
Experimental Evaluation of the Impact of Packet Capturing Tools for Web Services
July 16, 2011, 12:00am PDT
Network measurement is a discipline that provides the techniques to collect data that are fundamental to many branches of computer science. While many capturing tools and comparisons have made...
Provided by University of California
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White Papers
Distributed Measurement-Aware Routing: Striking a Balance Between Measurement and Traffic Engineering
January 11, 2012, 12:00am PST
Network-wide traffic measurement is important for various network management tasks, ranging from traffic accounting, traffic engineering, and network troubleshooting to security. Existing...
Provided by University of California
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White Papers
Traffic Flow Reconstruction Using Mobile Sensors and Loop Detector Data
July 31, 2007, 12:00am PDT
In order to develop efficient control strategies to improve traffic conditions on freeways, it is necessary to know the state of the freeway at any point in time and space. Using data collected...
Provided by University of California
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White Papers
NeTS - FIND: Enabling Defense and Deterrence Through Private Attribution
September 1, 2008, 12:00am PDT
The Internet's any-to-any, best-effort communication model is widely heralded as one of the main reasons for its success. The absence of strong architectural restrictions has allowed Internet...
Provided by University of California
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White Papers
Conducting Cybersecurity Research Legally and Ethically
April 4, 2008, 12:00am PDT
The primary legal obstacles to conducting cybersecurity are not outright prohibitions but rather the difficulty of determining which of a large set of complex statutes might regulate a given...
Provided by University of California
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White Papers
Scaling Peer-to-Peer Video-on-Demand Systems Using Helpers
August 16, 2009, 12:00am PDT
The throughput of Peer-To-Peer (P2P) Video-on-Demand (VoD) systems is typically capped by the users' aggregate upload bandwidth. The drastic increase in the popularity of VoD and the demand of...
Provided by University of California
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White Papers
Enabling Multi-Level Trust in Privacy Preserving Data Mining
December 13, 2008, 12:00am PST
Privacy Preserving Data Mining (PPDM) addresses the problem of developing accurate models about aggregated data without access to precise information in individual data record. A widely studied...
Provided by University of California
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White Papers
Privacy Preserving Joins
December 13, 2007, 12:00am PST
In this paper, the authors design a system for mutually distrustful entities to perform privacy preserving joins, leveraging the power of a memory-limited secure coprocessor. Under this setting,...
Provided by University of California
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White Papers
Reducing Hybrid Disk Write Latency With Flash-Backed I/O Requests
August 15, 2007, 12:00am PDT
One of the biggest bottlenecks in desktop-based computing is the hard disk with I/O write latency being a key contributor. I/O write latency stems from the mechanical nature of hard disks, with...
Provided by University of California
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White Papers
Scalable Security for High Performance, Petascale Storage
June 1, 2007, 12:00am PDT
Petabyte scale, high-performance parallel file systems often hold sensitive data and thus require security, but authentication and authorization have the potential to reduce performance...
Provided by University of California
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