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Association for Computing Machinery
(6297 results)-
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TESLA: A Formally Defined Event Specification Language
July 15, 2010, 12:00am PDT
The need for timely processing large amounts of information, owing from the peripheral to the center of a system, is common to different application domains, and it has justified the development...
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RACED: an Adaptive Middleware for Complex Event Detection
December 1, 2009, 12:00am PST
While several event noti cation systems are built around a publish-subscribe communication infrastructure, the latter only supports detection of simple events. Complex events, involving several,...
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Adapting Publish-Subscribe Routing to Traffic Demands
June 22, 2007, 12:00am PDT
Most of currently available content-based publish-subscribe systems that were designed to operate in large scale, wired scenarios, build their routing infrastructure as a set of brokers connected...
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Inoculation Against Malware Infection Using Kernel-level Software Sensors
June 18, 2011, 12:00am PDT
The authors present a technique for dynamic malware detection that relies on a set of sensors that monitor the interaction of applications with the underlying operating system. By monitoring the...
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On the use of Computational Geometry to Detect Software Faults at Runtime
June 11, 2010, 12:00am PDT
Despite advances in software engineering, software faults continue to cause system downtime. Software faults are difficult to detect before the system fails, especially since the first symptom of...
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Using Code Metric Histograms and Genetic Algorithms to Perform Author Identification for Software Forensics
July 11, 2007, 12:00am PDT
The authors have developed a technique to characterize software developers' styles using a set of source code metrics. This style fingerprint can be used to identify the likely author of a piece...
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Detection and Mitigation of Abnormal Traffic Behavior in Autonomic Networked Environments
December 9, 2008, 12:00am PST
Autonomic network environments are required to be resilient. Resilience is defined as the ability for a network to provide and maintain an acceptable level of service in the face of various...
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Role-Dynamics: Fast Mining of Large Dynamic Networks
April 16, 2012, 12:00am PDT
To understand the structural dynamics of a large-scale social, biological or technological network, it may be useful to discover behavioral roles representing the main connectivity patterns...
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Critical Analysis of Encounter Traces
September 20, 2010, 12:00am PDT
The limitations of contact-logging experiments, particularly those based on periodic Bluetooth neighborhood scans, prevent them from detecting many contact opportunities. This paper highlights...
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An Information Theoretic Approach for MANET Unlinkability Measure
June 20, 2007, 12:00am PDT
Measuring communication anonymity (e.g., unlinkability) of mobile wireless ad hoc networks is a critical but still un-solved problem. In this paper, the authors present a theoretic model for...
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Improving Energy Efficiency for Mobile Platforms by Exploiting Low-Power Sleep States
May 17, 2012, 12:00am PDT
Reducing energy consumption is one of the most important design aspects for small form-factor mobile platforms, such as smart-phones and tablets. Despite its potential for power savings, optimally...
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DirectPath: High Performance and Energy Efficient Platform I/O Architecture for Content Intensive Usages
May 11, 2012, 12:00am PDT
With the widespread development of cloud computing and high speed communications, end users store or retrieve video, music, photo and other contents over the cloud or the local network for...
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The Networking Shape of Vehicular Mobility
May 30, 2008, 12:00am PDT
Mobility is the distinguishing feature of vehicular networks, affecting the evolution of network connectivity over space and time in a unique way. Connectivity dynamics, in turn, determine the...
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Insights on Metropolitan-Scale Vehicular Mobility From a Networking Perspective
May 11, 2012, 12:00am PDT
The management of mobility is commonly regarded as one of the most critical issues in large-scale telecommunication networks. The problem is exacerbated when considering vehicular mobility, which...
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Brief Announcement: Waiting in Dynamic Networks
May 11, 2012, 12:00am PDT
The authors consider infrastructure-less highly dynamic networks, where connectivity does not necessarily hold, and the network may actually be disconnected at every time instant. These networks...
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LARK: A Lightweight Authenticated ReKeying Scheme for Clustered Wireless Sensor Networks
July 9, 2010, 12:00am PDT
Group communication has proven to be a powerful paradigm for designing applications and services in Wireless Sensor Networks (WSNs). Given the tight interaction between WSNs and the physical...
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Practical Defenses Against Pollution Attacks in Intra-Flow Network Coding for Wireless Mesh Networks
March 18, 2009, 12:00am PDT
Recent studies show that network coding can provide significant benefits to network protocols, such as increased throughput, reduced network congestion, higher reliability, and lower power...
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Improving Server Applications With System Transactions
April 13, 2012, 12:00am PDT
Server applications must process requests as quickly as possible. Because some requests depend on earlier requests, there is often a tension between increasing throughput and maintaining the...
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Detecting Failures in Distributed Systems With the FALCON Spy Network
October 26, 2011, 12:00am PDT
A common way for a distributed system to tolerate crashes is to explicitly detect them and then recover from them. Interestingly, detection can take much longer than recovery, as a result of many...
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Harnessing Frequency Diversity in Wi-Fi Networks
September 23, 2011, 12:00am PDT
Wireless multicarrier communication systems transmit data by spreading it over multiple subcarriers and are widely used today owing to their robustness to multipath fading, high spectrum...
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Ensuring Operating System Kernel Integrity With OSck
March 11, 2011, 12:00am PST
Kernel rootkits that modify operating system state to avoid detection are a dangerous threat to system security. This paper presents OSck, a system that discovers kernel rootkits by detecting...
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Towards Alternative User Interfaces for Capturing and Managing Tasks With Mobile Devices
November 26, 2008, 12:00am PST
Mobile devices, per definition, are supposed to assist in organizing all kinds of things, also tasks of course, because usually such devices are always at hands. But due to the very limited and...
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Low-Power Clock Synchronization Using Electromagnetic Energy Radiating From AC Power Lines
November 6, 2009, 12:00am PST
Clock synchronization is highly desirable in many sensor networking applications. It enables event ordering, coordinated actuation, energy-efficient communication and duty cycling. This paper...
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DTN Over Aerial Carriers
September 25, 2009, 12:00am PDT
Delay-tolerant networking has been discussed for mobile environments, both with predictable (e.g., between buses) and unpredictable opportunistic (e.g., between people) contact schedules. While...
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Disconnection Tolerance for SIP-based Real-time Media Sessions
December 14, 2007, 12:00am PST
Mobile users may experience short disruptions and premature call terminations (not just) when moving while engaged in a (multimedia) conversation. While much emphasis is put on enabling seamless...
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Time Scales and Delay-Tolerant Routing Protocols
September 15, 2008, 12:00am PDT
Numerous routing protocols have been proposed for delay tolerant networking. One class of routing protocols aims at optimizing the delivery performance by using knowledge of previous encounters...
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Fast Inter-Domain Mobility With In-Packet Bloom Filters
September 24, 2010, 12:00am PDT
The authors propose a fast inter-domain mobility signaling protocol using in-packet Bloom filters. The intermediate routers collect a bi-directional Bloom filter on the first message, and on...
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BeachNet: Propagation-Based Information Sharing in Mostly Static Networks
September 30, 2011, 12:00am PDT
Delay-tolerant and opportunistic networking are widely investigated for information exchange in (sparse) mobile scenarios, in the evaluation of which numerous mobility models and traces have been...
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Delay-Tolerant Adaptive Real-Time Communication: A Case Study for Voice
March 14, 2012, 12:00am PDT
Delay-tolerant networking allows dealing with temporary disconnections and non-available end-to-end paths. While many DTN system designs focus on asynchronous applications (such as messaging or...
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Revenue Generation for Truthful Spectrum Auction in Dynamic Spectrum Access
May 21, 2009, 12:00am PDT
Spectrum is a critical yet scarce resource and it has been shown that dynamic spectrum access can significantly improve spectrum utilization. To achieve this, it is important to incentivize the...
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Private Data Deduplication Protocols in Cloud Storage
March 29, 2012, 12:00am PDT
In this paper, a new notion which the authors call private data deduplication protocol, a deduplication technique for private data storage is introduced and formalized. Intuitively, a private data...
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Towards End-to-End Secure Content Storage and Delivery With Public Cloud
February 9, 2012, 12:00am PST
Recent years have witnessed the trend of leveraging cloud-based services for large scale content storage, processing, and distribution. Security and privacy are among top concerns for the public...
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Designing an Inter-Cloud Messaging Protocol for Content Distribution as a Service (CoDaaS) Over Future Internet
June 15, 2011, 12:00am PDT
User-Generated Content (UGC) has become one of the dominant media formats. However, current approach to distribute UGC adds two middlemen (e.g., content aggregator and content distributor) in the...
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AdSentry: Comprehensive and Flexible Confinement of JavaScript-Based Advertisements
December 9, 2011, 12:00am PST
Internet advertising is one of the most popular online business models. JavaScript-based advertisements (ads) are often directly embedded in a web publisher's page to display ads relevant to users...
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Heap Taichi: Exploiting Memory Allocation Granularity in Heap-Spraying Attacks
December 10, 2010, 12:00am PST
Heap spraying is an attack technique commonly used in hijacking browsers to download and execute malicious code. In this attack, attackers first fill a large portion of the victim process's heap...
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Informed Mobile Prefetching
April 18, 2012, 12:00am PDT
Prefetching is a double-edged sword. It can hide the latency of data transfers over poor and intermittently connected wireless networks, but the costs of prefetching in terms of increased energy...
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Chimera: Hybrid Program Analysis for Determinism
January 1, 2012, 12:00am PST
Chimera uses a new hybrid program analysis to provide deterministic replay for commodity multiprocessor systems. Chimera leverages the insight that it is easy to provide deterministic...
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QuFiles: The Right File at the Right Time
September 1, 2010, 12:00am PDT
A quFile is a unifying abstraction that simplifies data management by encapsulating different physical representations of the same logical data. Similar to a quBit (quantum bit), the particular...
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DRAIN: Distributed Recovery Architecture for Inaccessible Nodes in Multi-Core Chips
June 10, 2011, 12:00am PDT
As transistor dimensions continue to scale deep into the nanometer regime, silicon reliability is becoming a chief concern. At the same time, transistor counts are scaling up, enabling the design...
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Gate-Level Simulation With GPU Computing
March 27, 2011, 12:00am PDT
Functional verification of modern digital designs is a crucial, time-consuming task impacting not only the correctness of the final product, but also its time to market. At the heart of most of...
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MeshMon: A Multi-Tiered Framework for Wireless Mesh Network Monitoring
May 18, 2009, 12:00am PDT
Monitoring and troubleshooting a large wireless mesh network presents several challenges. Diagnosis of problems related to wireless access in these networks requires a comprehensive set of metrics...
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DECOR: DEClaritive Network Management and OpeRation
August 21, 2009, 12:00am PDT
Network management operations are complicated, tedious and error-prone, requiring significant human involvement and expert knowledge. This paper first examines the fundamental components of...
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Virtual Routers on the Move: Live Router Migration as a Network-Management Primitive
August 22, 2008, 12:00am PDT
The complexity of network management is widely recognized as one of the biggest challenges facing the Internet today. Point solutions for individual problems further increase system complexity...
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Comprehensive QoS Monitoring of Web Services and Event-Based SLA Violation Detection
November 30, 2009, 12:00am PST
In service-oriented systems, Quality of Service represents an important issue which is often considered when selecting and composing services. For receiving up-to-date information, non-functional...
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SpyWare: A Change-Aware Development Toolset
May 18, 2008, 12:00am PDT
The research is driven by the motivation that change must be put in the center, if one wants to understand the complex processes of software evolution. The paper built a toolset named SpyWare...
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Emulating Emulation-Resistant Malware
November 9, 2009, 12:00am PST
The authors of malware attempt to frustrate reverse engineering and analysis by creating programs that crash or otherwise behave differently when executed on an emulated platform than when...
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Detecting Energy-Greedy Anomalies and Mobile Malware Variants
June 20, 2008, 12:00am PDT
Mobile users of computation and communication services have been rapidly adopting battery-powered mobile handhelds, such as PocketPCs and SmartPhones, for their work. However, the limited...
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A Cryptographic Provenance Verification Approach for Host-Based Malware Detection
April 21, 2009, 12:00am PDT
This paper presents a malware detection approach by focusing on the characteristic behaviors of human users. The paper explores the human-malware differences and utilizes them to aid the detection...
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Ether: Malware Analysis Via Hardware Virtualization Extensions
October 31, 2008, 12:00am PDT
Malware has become the centerpiece of most security threats on the Internet. Malware analysis is an essential technology that extracts the runtime behavior of malware, and supplies signatures to...
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Malware Detection Using Adaptive Data Compression
October 27, 2008, 12:00am PDT
A popular approach in current commercial anti-malware software detects malicious programs by searching in the code of programs for scan strings that are byte sequences indicative of malicious...
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On Interactive Visualization of High-Dimensional Data Using the Hyperbolic Plane
January 1, 2010, 12:00am PST
This paper proposes a novel projection based visualization method for high-dimensional datasets by combining concepts from MDS and the geometry of the hyperbolic spates. The approach Hyperbolic...
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Integrating Statistics and Visualization: Case Studies of Gaining Clarity During Exploratory Data Analysis
April 10, 2008, 12:00am PDT
Although both statistical methods and visualizations have been used by network analysts, exploratory data analysis remains a challenge. The paper proposes that a tight integration of these...
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Temporal Data Visualizations for Air Traffic Controllers (ATC)
April 9, 2009, 12:00am PDT
Fundamental research in visualization is concerned with the impact of presentation on visual perception and understanding. In current Air Traffic Control (ATC) environments, Air Traffic...
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Vispedia: On-Demand Data Integration for Interactive Visualization and Exploration
July 2, 2009, 12:00am PDT
Wikipedia is an example of the large, collaborative, semi-structured data sets emerging on the Web. Typically, before these data sets can be used, they must transformed into structured tables via...
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Empirical Evaluation of Mobile Peer-to-Peer Wellness Group Communication Application for Symbian OS
December 14, 2007, 12:00am PST
This paper analyzes the results of the end-user evaluation of a wellness-related mobile application for Symbian OS, the Wellness. With the application, users were able to plan their physical...
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Enhancing Dynamic Cloud-Based Services Using Network Virtualization
August 17, 2009, 12:00am PDT
It is envisaged that services and applications will migrate to a cloud-computing paradigm where thin-clients on user devices access, over the network, applications hosted in data centers by...
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Building Bug-Tolerant Routers With Virtualization
August 22, 2008, 12:00am PDT
Implementation bugs are a highly critical problem in wide-area networks. The software running on core routers is subject to vulnerabilities, coding mistakes, and misconfiguration. Unfortunately,...
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At-Scale Experimentation With Resource Virtualization in a Metro Optical Testbed
May 1, 2008, 12:00am PDT
This paper describes several efforts to explore integrated approaches to resource virtualization in a metro-scale optical testbed dubbed BEN (Breakable Experimental Network) located in Research...
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Does Virtualization Make Disk Scheduling Passé?
June 24, 2009, 12:00am PDT
Analysis of technology and application trends reveals a growing imbalance in the peak compute-to-memory-capacity ratio for future servers. At the same time, the fraction contributed by memory...
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Predictor Virtualization
March 5, 2008, 12:00am PST
Many hardware optimizations rely on collecting information about program behavior at runtime. This information is stored in lookup tables. To be accurate and effective, these optimizations usually...
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GreenFS: Making Enterprise Computers Greener by Protecting Them Better
April 4, 2008, 12:00am PDT
Hard disks contain data - frequently an irreplaceable asset of high monetary and non-monetary value. At the same time, hard disks are mechanical devices that consume power, are noisy, and fragile...
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Cloud Security Is Not (Just) Virtualization Security
November 13, 2009, 12:00am PST
Cloud infrastructure commonly relies on virtualization. Customers provide their own VMs, and the cloud provider runs them often without knowledge of the guest OSes or their configurations....
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Virtualizing the Data Plane Through Source Code Merging
August 22, 2008, 12:00am PDT
Virtualization is a key technology that enables multiple research groups to test new protocols simultaneously on the same physical network and also allows service providers to incrementally add...
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Disaggregated Memory for Expansion and Sharing in Blade Servers
June 24, 2009, 12:00am PDT
Analysis of technology and application trends reveals a growing imbalance in the peak compute-to-memory-capacity ratio for future servers. At the same time, the fraction contributed by memory...
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RACNet: A High-Fidelity Data Center Sensing Network
November 6, 2009, 12:00am PST
RACNet is a sensor network for monitoring a data center's environmental conditions. The high spatial and temporal fidelity measurements that RACNet provides can be used to improve the data...
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Towards a Next Generation Data Center Architecture: Scalability and Commoditization
August 22, 2008, 12:00am PDT
Applications hosted in today's data centers suffer from internal fragmentation of resources, rigidity, and bandwidth constraints imposed by the architecture of the network connecting the data...
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Low-Power Amdahl-Balanced Blades for Data Intensive Computing
August 4, 2009, 12:00am PDT
Enterprise and scientific data sets double every year, forcing similar growths in storage size and power consumption. As a consequence, current system architectures used to build data warehouses...
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vManage: Loosely Coupled Platform and Virtualization Management in Data Centers
June 19, 2009, 12:00am PDT
Management is an important challenge for future enterprises. Previous work has addressed platform management (e.g., power and thermal management) separately from virtualization management (e.g.,...
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An Evaluation of Multiple Communication Interfaces for Virtualized SMP Clusters
March 31, 2009, 12:00am PDT
Clusters with multiple CPU nodes are becoming increasingly popular due to their cost/performance ratio. Due to its many potential advantages, interest in using virtualization on these systems has...
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Accountability in Hosted Virtual Networks
August 17, 2009, 12:00am PDT
Virtualization enables multiple networks, each customized for a particular purpose, to run concurrently over a shared substrate. One such model for managing these virtual net-works is to create a...
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Virtualized Games for Teaching About Distributed Systems
March 7, 2009, 12:00am PST
Complex distributed systems are increasingly important in modern computer science, yet many undergraduate curricula do not give students the opportunity to develop the skill sets necessary to...
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Overshadow: A Virtualization-Based Approach to Retrofitting Protection in Commodity Operating Systems
March 5, 2008, 12:00am PST
Commodity operating systems entrusted with securing sensitive data are remarkably large and complex, and consequently, frequently prone to compromise. To address this limitation, the author...
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Building a Fast, Virtualized Data Plane With Programmable Hardware
August 17, 2009, 12:00am PDT
Network virtualization allows many networks to share the same underlying physical topology; this technology has offered promise both for experimentation and for hosting multiple networks on a...
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Harvesting Collective Intelligence
January 12, 2010, 12:00am PST
When harvesting collective intelligence, a user wishes to maximize the accuracy and value of the acquired information without spending too much time collecting it. The author empirically studies...
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Umbrella File System: Storage Management Across Heterogeneous Devices
February 13, 2009, 12:00am PST
With the advent of and recent developments in Flash storage, device characteristic diversity is becoming both more prevalent and more distinct. This paper describes the Umbrella File System...
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Flexible and Scalable Storage Management for Data-Intensive Stream Processing
March 26, 2009, 12:00am PDT
Data Stream Management Systems (DSMS) operate under strict performance requirements. Key to meeting such requirements is to efficiently handle time-critical tasks such as managing internal states...
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PortLand: A Scalable Fault-Tolerant Layer 2 Data Center Network Fabric
August 21, 2009, 12:00am PDT
This paper considers the requirements for a scalable, easily manageable, fault-tolerant, and efficient data center net-work fabric. Trends in multi-core processors, end-host virtualization, and...
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TALC: Using Desktop Graffiti to Fight Software Vulnerability
April 10, 2008, 12:00am PDT
With the proliferation of computer security threats on the Internet, especially threats such as worms that automatically exploit software flaws, it is becoming more and more important that home...
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Predicting Vulnerable Software Components
November 2, 2007, 12:00am PDT
Where do most vulnerabilities occur in software? The Vulture tool automatically mines existing vulnerability databases and version archives to map past vulnerabilities to components. The resulting...
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The User Is Not the Enemy: Fighting Malware by Tracking User Intentions
September 25, 2008, 12:00am PDT
Current access control policies provide no mechanisms for incorporating user behavior in access control decisions, even though the way a user interacts with a program often indicates what the user...
Provided by Association for Computing Machinery
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