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University of California Regents
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White Papers
ITS Data Center Access Policies and Procedures
March 27, 2007, 12:00am PDT
The ITS Data Center provides specific environmental, enhanced security access, fire alarms/suppression, Uninterrupted Power Supplies (UPS), Campus Backbone connectivity, and a number of other...
Provided by University of California
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Whitepapers
MeasuRouting: A Framework for Routing Assisted Traffic Monitoring
December 18, 2008, 12:00am PST
Monitoring transit traffic at one or more points in a network is of interest to network operators for reasons of traffic accounting, debugging or troubleshooting, forensics, and traffic...
Provided by University of California
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White Papers
Putting it All Together: Using Socio-Technical Networks to Predict Failures
November 30, 2009, 12:00am PST
Studies have shown that social factors in development organizations have a dramatic effect on software quality. Separately, program dependency information has also been used successfully to...
Provided by University of California
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White Papers
Is It Too Late for PAKE?
May 2, 2009, 12:00am PDT
The most common web authentication technique in use today is password authentication via an HTML form, where a user types her password directly into a web page from the site to which she wishes to...
Provided by University of California
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White Papers
Using Visual Features for Anti-Spam Filtering
January 1, 2009, 12:00am PST
Unsolicited Commercial Email (UCE), also known as spam, has been a major problem on the Internet. In the past, researchers have addressed this problem as a text classification or categorization...
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White Papers
Spam Filtering Using a Markov Random Field Model With Variable Weighting Schemas
January 1, 2009, 12:00am PST
This paper presents a Markov Random Field model based approach to filter spam. Their approach examines the importance of the neighborhood relationship (MRF cliques) among words in an email message...
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White Papers
Spamcraft: An Inside Look at Spam Campaign Orchestration
April 24, 2009, 12:00am PDT
This paper has presented a detailed study of spam campaign orchestration as observed in the wild. Their investigation was enabled by a long-term infiltration of the Storm botnet, comprising both...
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White Papers
Social Networks and Contract Enforcement in IT Outsourcing
February 17, 2009, 12:00am PST
Most prior research on Information Technology Outsourcing has characterized the dominant governance modes as either 'Formal' or 'Relational,' which rely on stringent assumptions of perfect...
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White Papers
Using the Triangle Inequality to Accelerate k-Means
January 1, 2009, 12:00am PST
The k-means algorithm is by far the most widely used method for discovering clusters in data. The paper shows how to accelerate it dramatically, while still always computing exactly the same...
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White Papers
Principled Methods for Advising Reinforcement Learning Agents
January 1, 2009, 12:00am PST
An important issue in reinforcement learning is how to incorporate expert knowledge in a principled manner, especially as one scales up to real-world tasks. This paper presents a method for...
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White Papers
SWAP: Mitigating XSS Attacks Using a Reverse Proxy
May 13, 2009, 12:00am PDT
Due to the increasing amount of Web sites offering features to contribute rich content, and the frequent failure of Web developers to properly sanitize user input, cross-site scripting prevails as...
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White Papers
Blue Versus Red: Towards a Model of Distributed Security Attacks
June 16, 2009, 12:00am PDT
This paper develops a two-sided multiplayer model of security in which attackers aim to deny service and defenders strategize to secure their assets. Attackers benefit from the successful...
Provided by University of California
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White Papers
Toward a Uni?ed Ontology of Cloud Computing
October 13, 2008, 12:00am PDT
Progress of research efforts in a novel technology is contingent on having a rigorous organization of its knowledge domain and a comprehensive understanding of all the relevant components of this...
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White Papers
The Eucalyptus Open-Source Cloud-Computing System
August 16, 2008, 12:00am PDT
Cloud computing systems fundamentally provide access to large amounts of data and computational resources through a variety of interfaces. Many extant systems have in common the notion that...
Provided by University of California
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White Papers
MapScale: A Cloud Environment for Scientific Computing
June 12, 2009, 12:00am PDT
Parallel programming languages have sought out many different means by which many numbers of cores can be utilized for a common goal. Programming languages such as MPI provide a low-level, message...
Provided by University of California
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White Papers
Energy Maps for Mobile Wireless Networks: Coherence Time Versus Spreading Period
January 20, 2009, 12:00am PST
This paper shows that even though mobile networks are highly unpredictable when viewed at the individual node scale, the end-to-end Quality-of-Service (QoS) metrics can be stationary when the...
Provided by University of California
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White Papers
Implementation and Evaluation of a Mobile Wireless PlanetLab Node
August 18, 2009, 12:00am PDT
With the introduction of cellular phones, mobile wireless communication has become an integral part of day-to-day life in this century. A testbed is crucial in continuing cutting-edge wireless...
Provided by University of California
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White Papers
A Mobile-Agent Based Wireless Sensing Network for Structural Monitoring Applications
December 19, 2008, 12:00am PST
A new wireless sensing network paradigm is presented for structural monitoring applications. In this approach, both power and data interrogation commands are conveyed via a mobile-agent that is...
Provided by University of California
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White Papers
Above the Clouds: A Berkeley View of Cloud Computing
February 10, 2009, 12:00am PST
Cloud Computing, the long-held dream of computing as a utility, has the potential to transform a large part of the IT industry, making software even more attractive as a service and shaping the...
Provided by University of California
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White Papers
ElasTraS: An Elastic Transactional Data Store in the Cloud
May 25, 2009, 12:00am PDT
Over the last couple of years, "Cloud Computing" or "Elastic Computing" has emerged as a compelling and successful paradigm for internet scale computing. One of the major contributing factors to...
Provided by University of California
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White Papers
Scheduling Heterogeneous Wireless Systems for Efficient Spectrum Access
September 30, 2009, 12:00am PDT
The spectrum scarcity problem emerged in recent years, due to unbalanced utilization of RF (Radio Frequency) bands in the current state of wireless spectrum allocations. Different from cognitive...
Provided by University of California
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White Papers
Re-Assessing Long Distance Wireless for West Africa
January 25, 2009, 12:00am PST
This paper describes the experiences deploying long distance, point-to-point WiFi links in Ghana and Guinea Bissau, focusing on several challenges that are somewhat unique to these countries and...
Provided by University of California
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White Papers
Near-Optimal Radio Use for Wireless Network Synchronization
June 30, 2009, 12:00am PDT
This paper considers the model of communication where wireless devices can either switch their radios o to save energy (and hence, can neither send nor receive messages), or switch their radios on...
Provided by University of California
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White Papers
A Real-Time Traffic Packet Scheduler for a Novel TDMA MAC Protocol
June 12, 2008, 12:00am PDT
Wireless mesh networks are being rapidly deployed in both urban and rural areas impacting a large fraction of the world's population. As the profile of the average user changes so does the...
Provided by University of California
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White Papers
Soft-TDMAC: A Software TDMA-Based MAC Over Commodity 802.11 Hardware
January 15, 2009, 12:00am PST
This paper designs and implements Soft-TDMAC, a software Time Division Multiple Access (TDMA) based MAC protocol, running over commodity 802.11 hardware. Soft-TDMAC has a synchronization...
Provided by University of California
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White Papers
Low-Complexity, High-Throughput Multiple-Access Wireless Protocol for Body Sensor Networks
March 14, 2009, 12:00am PDT
Wireless systems that form a body-area network must be made small and low power without sacrificing performance. To achieve high-throughput communication in low-cost wireless body area networks,...
Provided by University of California
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White Papers
Softspeak: Making VoIP Play Well in Existing 802.11 Deployments
February 27, 2009, 12:00am PST
Voice over IP (VoIP) in 802.11 Wireless Networks (WiFi) is an attractive alternative to cellular wireless telephony. Unfortunately, VoIP traffic is well known to make inefficient use of such...
Provided by University of California
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White Papers
Optimal MAC Protocol Formulation for Wireless Sensor Networks
September 28, 2007, 12:00am PDT
With the research interest in Wireless Sensor Networks (WSN) increasing, many Medium Access Control (MAC) protocols have been developed as a means to maximize the performance of WSN's. However,...
Provided by University of California
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White Papers
Optimizing Interval Training Protocols Using Data Mining Decision Trees
May 8, 2009, 12:00am PDT
Interval training consists of interleaving high intensity exercises with rest periods. This training method is a well known exercise protocol which helps strengthen and improve one's...
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White Papers
Defending Mobile Phones From Proximity Malware
January 21, 2009, 12:00am PST
As mobile phones increasingly become the target of propagating malware, their use of direct pair-wise communication mechanisms, such as Bluetooth and WiFi, pose considerable challenges to malware...
Provided by University of California
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White Papers
Automated Worm Fingerprinting
January 1, 2009, 12:00am PST
This paper proposes an automated approach for quickly detecting previously unknown worms and viruses based on two key behavioral characteristics a common exploit sequence together with a range of...
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White Papers
Password Based Login
January 1, 2009, 12:00am PST
As an introduction to security and cryptography, lets look at something it does extensively, namely to authenticate ourselves using passwords. It considers a computer on which many different...
Provided by Regents of the University of California
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White Papers
Protecting Browsers From Extension Vulnerabilities
December 8, 2009, 12:00am PST
Browser extensions are remarkably popular, with one in three Firefox users running at least one extension. Although well-intentioned, extension developers are often not security experts and write...
Provided by University of California
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White Papers
Cross-Origin JavaScript Capability Leaks: Detection, Exploitation, and Defense
May 18, 2009, 12:00am PDT
This paper identifies a class of Web browser implementation vulnerabilities, cross-origin JavaScript capability leaks, which occur when the browser leaks a JavaScript pointer from one security...
Provided by University of California
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White Papers
Secure Content Sniffing for Web Browsers, or How to Stop Papers From Reviewing Themselves
March 7, 2009, 12:00am PST
Cross-site scripting defenses often focus on HTML documents, neglecting attacks involving the browser's content-sniffing algorithm, which can treat non-HTML content as HTML. Web applications, such...
Provided by University of California
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White Papers
Extending Networking Into the Virtualization Layer
October 1, 2009, 12:00am PDT
The move to virtualization has created a new network access layer residing on hosts that connects the various VMs. Virtualized deployment environments impose requirements on networking for which...
Provided by University of California
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White Papers
VrtProf: Vertical Profiling for System Virtualization
September 14, 2009, 12:00am PDT
As data centers and end users become increasingly reliant on virtualization technology, more efficient and accurate methods of profiling such systems are needed. However, under virtualization the...
Provided by University of California
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White Papers
The Turnip: Visualizing Statistical Data Cleaning
December 18, 2008, 12:00am PST
Databases with measured or humanly entered data can be full of erroneous data that regular statistical methods are created around, but solutions can be time consuming and the data can be difficult...
Provided by University of California
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White Papers
Frequency Enhancements for Visualizing 3D Seismic Data
March 30, 2009, 12:00am PDT
This application paper introduces a suite of enhancement techniques for visualizing seismic data. These techniques provide a better understanding of the underlying propagation process in the...
Provided by University of California
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White Papers
Visualizing Industrial CT Volume Data for Nondestructive Testing Applications
January 1, 2010, 12:00am PST
This paper describes a set of techniques developed for the visualization of high-resolution volume data generated from industrial computed tomography for NonDestructive Testing (NDT) applications....
Provided by University of California
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Whitepapers
A CCA2 Secure Variant of the McEliece Cryptosystem
June 1, 2012, 12:00am PDT
The McEliece Public-Key Encryption scheme has become an interesting alternative to cryptosystems based on number-theoretical problems. Differently from RSA and ElGamal, McEliece PKC is not known...
Provided by University of California Regents
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Whitepapers
Mining Permission Request Patterns from Android and Facebook Applications
October 8, 2012, 12:00am PDT
Android and Facebook provide third-party applications with access to users' private data and the ability to perform potentially sensitive operations (e.g., post to a user's wall or place phone...
Provided by University of California San Francisco
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Whitepapers
Resource Sharing Control in Simultaneous MultiThreading Microarchitectures
March 28, 2008, 12:00am PDT
Simultaneous MultiThreading (SMT) achieves improved system resource utilization and accordingly higher instruction throughput because it exploits Thread-Level Parallelism (TLP) in addition to...
Provided by University of California
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Whitepapers
Memory-Side Acceleration for XML Parsing
June 22, 2011, 12:00am PDT
As Extensible Markup Language (XML) becomes prevalent in cloud computing environments, it also introduces significant performance overheads. In this paper, the authors analyze the performance of...
Provided by University of California
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Whitepapers
3D-FlashMap: A Physical-Location-Aware Block Mapping Strategy for 3D NAND Flash Memory
September 16, 2011, 12:00am PDT
Three-Dimensional (3D) flash memory is emerging to fulfill the ever-increasing demands of storage capacity. In 3D NAND flash memory, multiple layers are stacked to increase bit density and reduce...
Provided by University of California
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Whitepapers
Underdesigned and Opportunistic Computing
October 2, 2011, 12:00am PDT
Variation in the specifications of microelectronic chips across parts and over time has been a great source of concern for the integrated circuit chip designers because of the ever-increasing...
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Whitepapers
Characterization and Error-Correcting Codes for TLC Flash Memories
August 23, 2011, 12:00am PDT
Flash memory has become the storage medium of choice in portable consumer electronic applications, and high performance Solid State Drives (SSDs) are also being introduced into mobile computing,...
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Whitepapers
The Bleak Future of NAND Flash Memory
February 10, 2012, 12:00am PST
In recent years, flash-based SSDs have grown enormously both in capacity and popularity. In highperformance enterprise storage applications, accelerating adoption of SSDs is predicated on the...
Provided by University of California
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Whitepapers
Tackling Intracell Variability in TLC Flash Through Tensor Product Codes
May 17, 2012, 12:00am PDT
Flash memory is a promising new storage technology. To fully utilize future multi-level cell Flash memories, it is necessary to develop error correction coding schemes attuned to the underlying...
Provided by University of California
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Whitepapers
In-Situ MapReduce for Log Processing
April 27, 2011, 12:00am PDT
Log analytics are a bedrock component of running many of today's Internet sites. Application and click logs form the basis for tracking and analyzing customer behaviors and preferences, and they...
Provided by University of California
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Whitepapers
Reduced-Bandwidth Multithreaded Algorithms for Sparse Matrix-Vector Multiplication
February 1, 2011, 12:00am PST
On multicore architectures, the ratio of peak memory bandwidth to peak floating-point performance (byte: flop ratio) is decreasing as core counts increase, further limiting the performance of...
Provided by University of California
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Whitepapers
Formal Notions of Anonymity for Peer-to-Peer Networks
January 1, 2012, 12:00am PST
Providing anonymity support for Peer-To-Peer (P2P) overlay networks is critical. Otherwise, potential privacy attacks (e.g., network address trace-back) may deter a storage source from providing...
Provided by University of California
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Whitepapers
On Wormhole Attacks in Under-Water Sensor Networks: A Two-Tier Localization Approach
January 1, 2012, 12:00am PST
Under-Water Sensor Network (UWSN) is a novel networking paradigm to explore the uninhabited oceans. However, the characteristics of this new network, such as huge propagation delay, floating node...
Provided by University of California
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Whitepapers
A Novel Delay-And Reliability-Aware Inter-Vehicle Routing Protocol
July 14, 2010, 12:00am PDT
Intelligent transportation systems could improve transportation safety, driving assistance and traffic management system. Vehicular Ad hoc NETwork (VANET) is an emerging field of technology,...
Provided by University of California
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Whitepapers
Cooperative Localization Using Angle of Arrival Measurements: Sequential Algorithms and Non-Line-of-Sight Suppression
June 18, 2012, 12:00am PDT
The authors investigate localization of a source based on Angle of Arrival (AoA) measurements made at a geographically dispersed network of cooperating receivers. The goal is to efficiently...
Provided by University of California
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Whitepapers
Collaborative High Accuracy Localization in Mobile Multipath Environments
June 13, 2012, 12:00am PDT
The authors study the problem of high accuracy localization of mobile nodes in a multipath-rich environment where sub-meter accuracies are required. They employ a peer-to-peer framework where the...
Provided by University of California
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Whitepapers
A Benes Packet Network
August 2, 2012, 12:00am PDT
Benes networks are constructed with simple switch modules and have many advantages, including small latency and requiring only an almost linear number of switch modules. As circuit-switches, Benes...
Provided by University of California
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Whitepapers
On Developing Smart Applications for VANETs: Where Are We Now? Some Insights on Technical Issues and Open Problems
July 29, 2010, 12:00am PDT
The advances in research on ad hoc networks, the availability of cheap radio interfaces (e.g. Wi-Fi) and the increasing amount of electronic devices installed in vehicles have set the path for...
Provided by University of California
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Whitepapers
P2P Streaming Systems: A Survey and Experiments
June 9, 2009, 12:00am PDT
The great success of P2P systems for the purpose of file-sharing has set the path to likely be the next killer-app over the Internet, once the video streaming technology matures. Although solving...
Provided by University of California
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Whitepapers
Automated MAC Protocol Generation With Multiple Neighborhoods and Acknowledgments Based on Symbolic Monte Carlo Simulation
April 6, 2012, 12:00am PDT
The authors present a framework for automated Medium Access Control (MAC) protocol generation based on a model that incorporates multiple MAC neighborhoods as well as acknowledgments. Both the...
Provided by University of California
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Whitepapers
Hybrid Cloud Support for Large Scale Analytics and Web Processing
June 7, 2012, 12:00am PDT
Platform-as-a-service (PaaS) systems, such as Google App Engine (GAE), simplify web application development and cloud deployment by providing developers with complete software stacks: runtime...
Provided by University of California
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Whitepapers
Towards Stateless Single-Packet IP Traceback
July 23, 2007, 12:00am PDT
The current Internet architecture allows malicious nodes to disguise their origin during denial-of-service attacks with IP spoofing. A well-known solution to identify these nodes is IP traceback....
Provided by University of California
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Whitepapers
A Stateless Traceback Technique for Identifying the Origin of Attacks From a Single Packet
February 10, 2011, 12:00am PST
Anonymity is one of the main motivations for conducting denial-of-service attacks. Currently, there is no mechanism to either identify the true source of an IP packet or to prove its authenticity....
Provided by University of California
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Whitepapers
PLASMA: A New Routing Paradigm for Wireless Multihop Networks
January 13, 2012, 12:00am PST
In this paper, the authors present a new routing paradigm for wireless multi-hop networks. In plasma routing, each packet is delivered over the best available path to one of the gateways. The...
Provided by University of California
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Whitepapers
Capacity of Wireless Networks Within O(log(SNR)) - The Impact of Relays, Feedback, Cooperation and Full-Duplex Operation
February 4, 2008, 12:00am PST
Recent work has characterized the sum capacity of time-varying/frequency-selective wireless interference networks and X networks within o(log(SNR)), i.e., with an accuracy approaching 100% at high...
Provided by University of California
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Whitepapers
Degrees of Freedom of the K User M x N MIMO Interference Channel
August 31, 2008, 12:00am PDT
Interference management is an important problem in wireless system design. Researchers have been exploring the capacity characterization of the Gaussian interference channel from a information...
Provided by University of California
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Whitepapers
Deterministic Sequencing of Exploration and Exploitation for Multi-Armed Bandit Problems
September 10, 2011, 12:00am PDT
In the Multi-Armed Bandit (MAB) problem, there is a given set of arms with unknown reward models. At each time, a player selects one arm to play, aiming to maximize the total expected reward over...
Provided by University of California
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Whitepapers
Dynamic Intrusion Detection in Resource-Constrained Cyber Networks
December 1, 2011, 12:00am PST
The objective of Intrusion Detection Systems (IDS) is to locate malicious activities (e.g., denial of service attack, port scans, hackers) in the quickest way such that the infected parts can be...
Provided by University of California
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Whitepapers
North by Northwest: Infrastructure Agnostic and Datastore Agnostic Live Migration of Private Cloud Platforms
May 16, 2012, 12:00am PDT
Cloud technology is evolving at a rapid pace with innovation occurring throughout the software stack. While updates to Software-as-a-Service (SaaS) products require a simple push of code to the...
Provided by University of California
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Whitepapers
Sweet Storage SLOs With Frosting
May 16, 2012, 12:00am PDT
Modern datacenters support a large number of applications with diverse performance requirements. These performance requirements are expressed at the application layer as high-level Service-Level...
Provided by University of California
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Whitepapers
Discretized Streams: An Efficient and Fault-Tolerant Model for Stream Processing on Large Clusters
May 18, 2012, 12:00am PDT
Many important "Big data" applications need to process data arriving in real time. However, current programming models for distributed stream processing are relatively low-level, often leaving the...
Provided by University of California
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Whitepapers
A Case for Performance-Centric Network Allocation
May 16, 2012, 12:00am PDT
The authors consider the problem of allocating network resources across applications in a private cluster running data-parallel frameworks. Their primary observation is that these applications...
Provided by University of California
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Whitepapers
Provenance Management in Databases Under Schema Evolution
May 20, 2012, 12:00am PDT
Since, changes caused by database updates combine with the internal changes caused by database schema evolution, an integrated provenance management for data and metadata represents a key...
Provided by University of California
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Whitepapers
Dirty Jobs: The Role of Freelance Labor in Web Service Abuse
July 9, 2011, 12:00am PDT
Modern Web services inevitably engender abuse, as attackers find ways to exploit a service and its user base. However, while defending against such abuse is generally considered a technical...
Provided by University of California
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Whitepapers
Topic Modeling of Freelance Job Postings to Monitor Web Service Abuse
October 21, 2011, 12:00am PDT
Web services such as Google, Facebook, and Twitter are recurring victims of abuse, and their plight will only worsen as more attackers are drawn to their large user bases. Many attackers hire...
Provided by University of California
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Whitepapers
Limitations of Scanned Human Copresence Encounters for Modelling Proximity-Borne Malware
December 2, 2011, 12:00am PST
Patterns of human encounters, which are difficult to observe directly, are fundamental to the propagation of mobile malware aimed at infecting devices in spatial proximity. The authors investigate...
Provided by University of California
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Whitepapers
BlueSky: A Cloud-Backed File System for the Enterprise
January 23, 2012, 12:00am PST
The authors present BlueSky, a network file system backed by cloud storage. BlueSky stores data persistently in a cloud storage provider such as Amazon S3 or Windows Azure, allowing users to take...
Provided by University of California
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Whitepapers
Weighted Fair Queuing With Differential Dropping
January 15, 2012, 12:00am PST
Weighted Fair Queuing (WFQ) allows Internet operators to define traffic classes and then assign different bandwidth proportions to these classes. Unfortunately, the complexity of efficiently...
Provided by University of California
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Whitepapers
Analysis of Ecrime in Crowd-Sourced Labor Markets: Mechanical Turk Vs. Freelancer
May 21, 2012, 12:00am PDT
Research in the economics of security has contributed more than a decade of empirical findings to the understanding of the microeconomics of (in) security, privacy, and ecrime. Here, the authors...
Provided by University of California
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Whitepapers
The Selective Intermediate Nodes Scheme for Ad Hoc On-Demand Routing Protocols
January 1, 2012, 12:00am PST
The on-demand routing schemes in mobile ad hoc networks are appealing because of the lower routing overhead, compared with traditional proactive schemes. The on-demand routing protocols introduce...
Provided by University of California
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