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University of Maryland
(343 results)-
White Papers
Round Optimal Blind Signatures
May 25, 2011, 12:00am PDT
All known round optimal (i.e., two-move) blind signature schemes either need a common reference string, rely on random oracles, or assume the hardness of some interactive assumption. At Eurocrypt...
Provided by University of Maryland
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White Papers
Secure Multi-Party Computation of Boolean Circuits With Applications to Privacy in On-Line Marketplaces
May 24, 2011, 12:00am PDT
Protocols for generic secure Multi-Party Computation (MPC) come in two forms: they either represent the function being computed as a Boolean circuit or as an arithmetic circuit over a large field....
Provided by University of Maryland
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White Papers
Constraint-Based Invariant Inference Over Predicate Abstraction
October 7, 2008, 12:00am PDT
This paper describes a constraint-based invariant generation technique for proving the validity of safety assertions over the domain of predicate abstraction in an interprocedural setting. The key...
Provided by University of Maryland
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White Papers
Special-interest Groups And Growth
July 1, 2007, 12:00am PDT
This paper explores the relationship between special-interest groups and economic growth, using newly assembled data on the number of groups observed across countries. In a sample of 86 countries...
Provided by University of Maryland
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White Papers
History-Free Sequential Aggregate Signatures
June 30, 2011, 12:00am PDT
Aggregation schemes allows to combine several cryptographic values like message authentication codes or signatures into a shorter value such that, despite compression, some notion of...
Provided by University of Maryland
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White Papers
Private Virtual Infrastructure for Cloud Computing
May 21, 2009, 12:00am PDT
Cloud computing places an organization's sensitive data in the control of a third party, introducing a significant level of risk on the privacy and security of the data. The authors propose a new...
Provided by University of Maryland
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White Papers
Energy-Efficient Reliable Paths for On-Demand Routing Protocols
January 1, 2011, 12:00am PST
The authors define techniques to compute energy efficient reliable paths within the framework of on-demand routing protocols. Computation of minimum energy reliable paths for proactive protocols...
Provided by University of Maryland
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White Papers
Characterizing the IEEE 802.11 Traffic: The Wireless Side
January 1, 2011, 12:00am PST
Many studies on measurement and characterization of wireless LANs have been performed recently. Most of these measurements have been conducted from the wired portion of the network based on wired...
Provided by University of Maryland
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White Papers
Privacy-Preserving Inter-Database Operations
January 1, 2011, 12:00am PST
The authors present protocols for distributed computation of relational intersections and equi-joins such that each site gains no information about the tuples at the other sites that do not...
Provided by University of Maryland
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White Papers
On Computing Compression Trees for Data Collection in Wireless Sensor Networks
April 8, 2010, 12:00am PDT
The authors address the problem of efficiently gathering correlated data from a wireless sensor network, with the aim of designing algorithms with provable optimality guarantees, and understanding...
Provided by University of Maryland
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White Papers
Secure Routing and Intrusion Detection in Ad Hoc Networks
July 31, 2007, 12:00am PDT
Numerous schemes have been proposed for secure routing and Intrusion Detection for ad hoc networks. Yet, little work exists in actually implementing such schemes on small handheld devices. This...
Provided by University of Maryland
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White Papers
Electronic Part Obsolescence Driven Product Redesign Optimization
August 17, 2007, 12:00am PDT
Many electronic parts have life cycles that are shorter than the life cycle of the product they are in. Life cycle mismatches caused by the obsolescence of electronic parts result in higher...
Provided by University of Maryland
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White Papers
Virtual MeshTest - Improving Wireless Network Testbed Using Virtualization and Migration Algorithm
April 1, 2011, 12:00am PDT
There are several laboratory-based mobile wireless testbeds such as the MeshTest and the CMU wireless emulator. These testbeds provide powerful computing network platforms for users who want to...
Provided by University of Maryland
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White Papers
Coinonia: Privacy-Aware Meeting Scheduler Based on Location-Based Services for Mobile Users
January 11, 2011, 12:00am PST
The location based service has been attracted more and more in recent years with the advance of wireless communication technologies. Some mobile applications are designed to provide users with...
Provided by University of Maryland
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White Papers
Improving Graph Drawing Readability by Incorporating Readability Metrics: A Software Tool for Network Analysts
May 13, 2009, 12:00am PDT
Designing graph drawings that effectively communicate the underlying network is challenging as for every network there are many potential unintelligible or even misleading drawings. Automated...
Provided by University of Maryland
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White Papers
LeechLock: Preventing Selfish Clients in the BitTorrent Protocol
May 1, 2011, 12:00am PDT
Although the BitTorrent protocol incentivizes sharing by increasing a peer's download rate, tools have demonstrated that the tit-for-tat mechanism alone is insufficient to prevent peers from...
Provided by University of Maryland
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White Papers
Characterizing Transport Layer Behavior in the MeshTest Wireless Testbed
December 4, 2008, 12:00am PST
The MeshTest testbed enables real wireless nodes, real RF, and programmable attenuators to simulate controllable and repeatable mobile wireless experiments. MeshTest provides realistic wireless...
Provided by University of Maryland
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White Papers
Numerical Flow Optimization in Dense Wireless Sensor Networks
August 12, 2008, 12:00am PDT
The authors use a vector field model to formulate flow of information at every point of a dense wireless sensor network. The magnitude of this vector field represents the density of communication...
Provided by University of Maryland
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White Papers
Localization in Multi-Modal Sensor Networks
October 12, 2007, 12:00am PDT
The authors describe the design and implementation of solutions for localization problems in multi-modal wireless sensor networks. The problem of network self-localization, namely determining the...
Provided by University of Maryland
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Whitepapers
High-Speed Prefix-Preserving IP Address Anonymization for Passive Measurement Systems
January 1, 2012, 12:00am PST
Passive network measurement and packet header trace collection are vital tools for network operation and research. To protect a user's privacy, it is necessary to anonymize header fields,...
Provided by University of Maryland University College
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Whitepapers
VNMBench: A Benchmark for Virtual Network Mapping Algorithms
May 10, 2012, 12:00am PDT
The network architecture of the current Internet cannot accommodate the deployment of novel network-layer protocols. To address this fundamental problem, network virtualization has been proposed,...
Provided by University of Maryland University College
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Whitepapers
Automated Sensor Verification Using Outlier Detection in the Internet of Things
April 1, 2012, 12:00am PDT
Cyber-physical systems uses sensors, actuators, and computation to solve problems that cross the physical world and computational world. Traditionally, the systems have been designed to be...
Provided by University of Maryland University College
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Whitepapers
Saving Energy and Improving TCP Throughput With Rate Adaptation in Ethernet
February 9, 2012, 12:00am PST
Reducing the power consumption of network inter-faces contributes to lowering the overall power needs of the compute and communication infrastructure. Most modern Ethernet interfaces can operate...
Provided by University of Maryland University College
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Whitepapers
Packet Forwarding Misbehavior Detection in Next-Generation Networks
February 10, 2012, 12:00am PST
The next-generation Internet promises to provide a fundamental shift in the underlying architecture to support dynamic deployment of network protocols. With the introduction of programmability and...
Provided by University of Maryland University College
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Whitepapers
Virtual Network Mapping With Traffic Matrices
February 9, 2012, 12:00am PST
Network virtualization is a core technology in next-generation networks to overcome the ossification problem that is observed in the current Internet. The key idea of network virtualization is to...
Provided by University of Maryland University College
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Whitepapers
Efficient Conflict Detection in Flow-Based Virtualized Networks
July 24, 2011, 12:00am PDT
In the current Internet, traffic is routed at the level of destination prefixes. The next-generation Internet requires control of traffic at the level of flows or flow aggregates. To accommodate...
Provided by University of Maryland University College
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Whitepapers
Security Issues in Network Virtualization for the Future Internet
May 30, 2011, 12:00am PDT
Network virtualization is a key technology that is necessary to support diverse protocol suites in the future Internet. A virtualized network uses a single physical infrastructure to support...
Provided by University of Maryland University College
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Whitepapers
Encrypted Packet Forwarding in Virtualized Networks
August 12, 2011, 12:00am PDT
Virtualized networks provide a shared infrastructure platform for hosting multiple independent networks with different protocol stacks. The infrastructure and the virtual networks are operated by...
Provided by University of Maryland University College
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Whitepapers
Attacks on Network Infrastructure
May 15, 2011, 12:00am PDT
The authors present the first practical example of an entirely new class of network attacks - attacks that target the network infrastructure. Modern routers in computer networks use...
Provided by University of Maryland University College
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Whitepapers
High-Performance Implementation of In-Network Traffic Pacing
July 4, 2011, 12:00am PDT
Optical packet switching networks promise to provide high-speed data communication and serve as the foundation of the future Internet. A key technological problem is the very small size of packet...
Provided by University of Maryland University College
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Whitepapers
A Study of the Impact of Network Traffic Pacing From Network and End-User Perspectives
May 9, 2011, 12:00am PDT
As the demand on the Internet bandwidth keeps increasing, all-optical network architectures emerge as a promising solution to high-speed telecommunication networks. However, the performance of...
Provided by University of Maryland University College
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Whitepapers
Automated Service Composition and Routing in Networks With Data-Path Services
May 4, 2010, 12:00am PDT
Advanced packet processing in the data path of networks is common in the current Internet and is expanding to next-generation networks. Dynamic composition of such "Network services" allows...
Provided by University of Maryland University College
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Whitepapers
A Taxonomy and Comparative Evaluation of Algorithms for Parallel Anomaly Detection
May 4, 2010, 12:00am PDT
Anomaly detection in network traffic is an important technique for identifying operation and security problems in networks. Numerous anomaly detection algorithms have been proposed and deployed in...
Provided by University of Maryland University College
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Whitepapers
Enforcement of Data-Plane Policies in Next-Generation Networks
May 2, 2010, 12:00am PDT
Modern networks not only forward traffic, but also perform a variety of processing operations on packets (e.g., content inspection, transcoding, QoS scheduling). Such dataplane operations cannot...
Provided by University of Maryland University College
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Whitepapers
Implementation of a Simplified Network Processor
April 7, 2010, 12:00am PDT
Programmable packet processors have replaced traditional fixed-function custom logic in the data path of routers. Programmability of these systems allows the introduction of new packet processing...
Provided by University of Maryland University College
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Whitepapers
Data Path Management in Mesh-Based Programmable Routers
February 10, 2010, 12:00am PST
With dozens to hundreds of processing cores deployed in next generation packet processor, regular topologies such as mesh are widely adopted in Network-on-Chip design to provide scalable...
Provided by University of Maryland University College
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Whitepapers
Convergence of Communication and Processing in Next-Generation Networks
February 9, 2010, 12:00am PST
The authors argue that applications can benefit from the offloading of processing tasks into the data path of next-generation networks, where custom packet processing functions can be implemented....
Provided by University of Maryland University College
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Whitepapers
A Practical On-Line Pacing Scheme at Edges of Small Buffer Networks
December 18, 2009, 12:00am PST
For the optical packet-switching routers to be widely deployed in the Internet, the size of packet buffers on routers has to be significantly small. Such small-buffer networks rely on traffic with...
Provided by University of Maryland University College
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Whitepapers
Evaluation of Path Recording Techniques in Secure MANET
August 19, 2009, 12:00am PDT
Secure operation of mobile ad-hoc networks requires the ability to track the flow of traffic through the network. Knowledge of the path of a packet allows inference of correct operation or...
Provided by University of Maryland University College
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Whitepapers
Techniques for Policy Enforcement on Encrypted Network Traffic
August 19, 2009, 12:00am PDT
Most large-scale data communication net-works are built from multiple autonomous sub-networks, which are managed by different administrative entities. In many practical environments, information...
Provided by University of Maryland University College
-
White Papers
Virtual MeshTest - Improving Wireless Network Testbed Using Virtualization and Migration Algorithm
April 1, 2011, 12:00am PDT
There are several laboratory-based mobile wireless testbeds such as the MeshTest and the CMU wireless emulator. These testbeds provide powerful computing network platforms for users who want to...
Provided by University of Maryland
-
White Papers
On Computing Compression Trees for Data Collection in Wireless Sensor Networks
April 8, 2010, 12:00am PDT
The authors address the problem of efficiently gathering correlated data from a wireless sensor network, with the aim of designing algorithms with provable optimality guarantees, and understanding...
Provided by University of Maryland
-
White Papers
Privacy-Preserving Inter-Database Operations
January 1, 2011, 12:00am PST
The authors present protocols for distributed computation of relational intersections and equi-joins such that each site gains no information about the tuples at the other sites that do not...
Provided by University of Maryland
-
White Papers
Characterizing the IEEE 802.11 Traffic: The Wireless Side
January 1, 2011, 12:00am PST
Many studies on measurement and characterization of wireless LANs have been performed recently. Most of these measurements have been conducted from the wired portion of the network based on wired...
Provided by University of Maryland
-
White Papers
Energy-Efficient Reliable Paths for On-Demand Routing Protocols
January 1, 2011, 12:00am PST
The authors define techniques to compute energy efficient reliable paths within the framework of on-demand routing protocols. Computation of minimum energy reliable paths for proactive protocols...
Provided by University of Maryland
-
White Papers
Private Virtual Infrastructure for Cloud Computing
May 21, 2009, 12:00am PDT
Cloud computing places an organization's sensitive data in the control of a third party, introducing a significant level of risk on the privacy and security of the data. The authors propose a new...
Provided by University of Maryland
-
White Papers
History-Free Sequential Aggregate Signatures
June 30, 2011, 12:00am PDT
Aggregation schemes allows to combine several cryptographic values like message authentication codes or signatures into a shorter value such that, despite compression, some notion of...
Provided by University of Maryland
-
White Papers
Special-interest Groups And Growth
July 1, 2007, 12:00am PDT
This paper explores the relationship between special-interest groups and economic growth, using newly assembled data on the number of groups observed across countries. In a sample of 86 countries...
Provided by University of Maryland
-
White Papers
Constraint-Based Invariant Inference Over Predicate Abstraction
October 7, 2008, 12:00am PDT
This paper describes a constraint-based invariant generation technique for proving the validity of safety assertions over the domain of predicate abstraction in an interprocedural setting. The key...
Provided by University of Maryland
-
White Papers
Secure Multi-Party Computation of Boolean Circuits With Applications to Privacy in On-Line Marketplaces
May 24, 2011, 12:00am PDT
Protocols for generic secure Multi-Party Computation (MPC) come in two forms: they either represent the function being computed as a Boolean circuit or as an arithmetic circuit over a large field....
Provided by University of Maryland
-
White Papers
Round Optimal Blind Signatures
May 25, 2011, 12:00am PDT
All known round optimal (i.e., two-move) blind signature schemes either need a common reference string, rely on random oracles, or assume the hardness of some interactive assumption. At Eurocrypt...
Provided by University of Maryland
-
White Papers
Efficient Handling of Adversary Attacks in Aggregation Applications
July 8, 2008, 12:00am PDT
Data aggregation is generally believed to be a fundamental communication primitive in resource-constrained, wireless sensor networks. In principle in-network aggregation of sensor data can...
Provided by University of Maryland
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White Papers
Image Ranking and Retrieval Based on Multi-Attribute Queries
March 29, 2011, 12:00am PDT
The authors propose a novel approach for ranking and retrieval of images based on multi-attribute queries. Existing image retrieval methods train separate classifiers for each word and...
Provided by University of Maryland
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White Papers
Universally Composable Synchronous Computation
June 10, 2011, 12:00am PDT
In synchronous networks, protocols can achieve security guarantees that are not possible in an asynchronous world: i.e., they can simultaneously achieve input completeness (all honest parties'...
Provided by University of Maryland
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White Papers
Network-Aware Join Processing in Global-Scale Database Federations
January 1, 2011, 12:00am PST
The authors introduce join scheduling algorithms that employ a balanced network utilization metric to optimize the use of all network paths in a global-scale database federation. This metric...
Provided by University of Maryland
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White Papers
Bounds on the Efficiency of Generic Cryptographic Constructions
January 1, 2011, 12:00am PST
A central focus of modern cryptography is the construction of efficient, "High-level" cryptographic tools (e.g., encryption schemes) from weaker, "Low-level" cryptographic primitives (e.g.,...
Provided by University of Maryland
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White Papers
Flow Algorithms for Parallel Query Optimization
August 22, 2007, 12:00am PDT
In this paper the authors address the problem of minimizing the response time of a multi-way join query using pipelined (inter-operator) parallelism, in a parallel or a distributed environment....
Provided by University of Maryland
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White Papers
Using Symbolic Evaluation to Understand Behavior in Configurable Software Systems
December 10, 2009, 12:00am PST
Many modern software systems are designed to be highly configurable, which increases flexibility but can make programs hard to test, analyze, and understand. The authors present an initial...
Provided by University of Maryland
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White Papers
Compressing Kinetic Data From Sensor Networks
September 14, 2009, 12:00am PDT
The authors introduce a framework for storing and processing kinetic data observed by sensor networks. These sensor networks generate vast quantities of data, which motivates a significant need...
Provided by University of Maryland
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White Papers
Evaluating Interaction Patterns in Configurable Software Systems
June 16, 2009, 12:00am PDT
Many modern software systems are designed to be highly configurable, which makes testing them a challenge. One popular approach is combinatorial configuration testing, which, given an interaction...
Provided by University of Maryland
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White Papers
Profile-Guided Static Typing for Dynamic Scripting Languages
April 8, 2009, 12:00am PDT
Many popular scripting languages such as Ruby, Python, and Perl include highly dynamic language constructs, such as an eval method that evaluates a string as program text. While these constructs...
Provided by University of Maryland
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White Papers
Using Content-Addressable Networks for Load Balancing in Desktop Grids
January 1, 2011, 12:00am PST
Desktop grids combine Peer-to-Peer and Grid computing techniques to improve the robustness, reliability and scalability of job execution infrastructures. However, efficiently matching incoming...
Provided by University of Maryland
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White Papers
Indexing Cached Multidimensional Objects in Large Main Memory Systems
January 1, 2011, 12:00am PST
Semantic caches allow queries into large datasets to leverage cached results either directly or through transformations, using semantic information about the data objects in the cache. As the...
Provided by University of Maryland
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White Papers
KeyChains: A Decentralized Public-Key Infrastructure
January 1, 2011, 12:00am PST
A Certification Authority (CA) can be used to certify keys and build a Public-Key Infrastructure (PKI) when all users trust the same CA. A decentralized PKI trades off absolute assurance on keys...
Provided by University of Maryland
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White Papers
Using Data for Systemic Financial Risk Management
January 12, 2011, 12:00am PST
The recent financial collapse has laid bare the inadequacies of the information infrastructure supporting the US financial system. Technical challenges around large-scale data systems interact...
Provided by University of Maryland
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White Papers
Dispersion In Analysts' Earnings Forecasts And Credit Rating
July 16, 2007, 12:00am PDT
This paper shows that the puzzling negative cross-sectional relation between dispersion in analysts' earnings forecasts and future stock returns results from financial distress as proxied by...
Provided by University of Maryland
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White Papers
Employing Fuzzy Logic for Enhancing Administration System Performance
November 1, 2007, 12:00am PDT
The fuzzy logic adopted in formulating a computer program based on mathematical and logical algorithms. The approved standards were employed in evaluating the performance and determining the...
Provided by University of Maryland
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White Papers
Precautionary Demand For Foreign Assets In Sudden Stop Economies: An Assessment Of The New Mercantilism
November 10, 2007, 12:00am PST
Financial globalization had a rocky start in emerging economies hit by Sudden Stops. Foreign reserves have grown very rapidly since then, as if those countries were practicing a New Mercantilism...
Provided by University of Maryland
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White Papers
Studying the Characteristics of a "Good" GUI Test Suite
January 1, 2011, 12:00am PST
The widespread deployment of Graphical-User Interfaces (GUIs) has increased the overall complexity of testing. A GUI test designer needs to perform the daunting task of adequately testing the GUI,...
Provided by University of Maryland
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White Papers
Ranking Search Results in P2P Systems
January 1, 2011, 12:00am PST
P2P deployments are a natural infrastructure for building distributed search networks. Proposed systems support locating and retrieving all results, but lack the information necessary to rank...
Provided by University of Maryland
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White Papers
Efficient Geographic Routing in Multihop Wireless Networks
January 1, 2011, 12:00am PST
The authors propose a new link metric called Normalized ADVance (NADV) for geographic routing in multihop wireless networks. NADV selects neighbors with the optimal trade-off between proximity and...
Provided by University of Maryland
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White Papers
Matching Jobs to Resources in Distributed Desktop Grid Environments
January 1, 2011, 12:00am PST
Desktop grids use opportunistic sharing to exploit large collections of personal computers and workstations across the Internet and can achieve tremendous computing power with low cost. However,...
Provided by University of Maryland
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White Papers
Collective Classification in Network Data
January 1, 2011, 12:00am PST
Numerous real-world applications produce networked data such as web data (hypertext documents connected via hyperlinks) and communication networks (people connected via communication links). A...
Provided by University of Maryland
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White Papers
Archiving Temporal Web Information: Organization of Web Contents for Fast Access and Compact Storage
April 7, 2008, 12:00am PDT
The authors address the problem of archiving dynamic web contents over significant time spans. Current schemes crawl the web contents at regular time intervals and archive the contents after each...
Provided by University of Maryland
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White Papers
Scaling Single-Program Performance on Large-Scale Chip Multiprocessor
November 25, 2009, 12:00am PST
Due to power constraints, computer architects will exploit TLP instead of ILP for future performance gains. Today, 4 - 8 state-of-the-art cores or 10s of smaller cores can fit on a single die. For...
Provided by University of Maryland
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White Papers
Effective Strategies for Temporally Anchored Information Retrieval
May 29, 2010, 12:00am PDT
A number of emerging large scale applications such as web archiving and time-stamped web objects generated through information feeds involve time-evolving objects that can be most effectively...
Provided by University of Maryland
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White Papers
Optimization of Linked List Prefix Computations on Multithreaded GPUs Using CUDA
July 14, 2010, 12:00am PDT
The authors present a number of optimization techniques to compute prefix sums on linked lists and implement them on multithreaded GPUs using CUDA. Prefix computations on linked structures involve...
Provided by University of Maryland
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White Papers
Memory Performance Analysis for Parallel Programs Using Concurrent Reuse Distance
October 6, 2010, 12:00am PDT
Performance on multicore processors is determined largely by on-chip cache. Computer architects have conducted numerous studies in the past that vary core count and cache capacity as well as...
Provided by University of Maryland
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White Papers
Constructing Inverted Files on a Cluster of Multicore Processors Near Peak I/O Throughput
March 3, 2011, 12:00am PST
The authors develop a new strategy for processing a collection of documents on a cluster of multicore processors to build the inverted files at almost the peak I/O throughput of the underlying...
Provided by University of Maryland
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White Papers
Using GUI Run-Time State as Feedback to Generate Test Cases
January 1, 2011, 12:00am PST
This paper presents a new automated model-driven technique to generate test cases by using feedback from the execution of a "Seed test suite" on an Application Under Test (AUT). The test cases in...
Provided by University of Maryland
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