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University of Minnesota
(148 results)-
White Papers
Paradigms for Mobile Agent-Based Active Monitoring of Network Systems
January 1, 2010, 12:00am PST
This paper presents here a framework together with a set of paradigms for mobile agent based active monitoring of network systems. In one's framework mobile agents are used to perform remote...
Provided by University of Minnesota
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White Papers
Using SAS to Perform Individual Matching in Design of Case-Control Studies
March 19, 2010, 12:00am PDT
In the design of case-control studies it is often desired to match each case with one or more controls based on a set of variables and maximum differences between case and control in these...
Provided by University of Minnesota
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White Papers
Choosing Management strategy
March 8, 2010, 12:00am PST
The authors describe two structured decision-making methods-one using a hierarchy of goals and a second using ranking on the sum of the weighted criteria-that may be useful for many practical...
Provided by University of Minnesota
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White Papers
Does More Conservative Revenue Recognition Improve The Informativeness Of Earnings?
July 1, 2008, 12:00am PDT
Watts (2003a) and Watts and LaFond (2007) provide evidence that more conservative earnings serve an informational role in equity valuation. The study tests this assertion using a sample of...
Provided by University of Minnesota
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White Papers
Basic Excel for Engineers
October 1, 2008, 12:00am PDT
Excel is a widely used spreadsheet developed by Microsoft. Although used widely by business professionals, it can be very useful to the engineer as well. An excellent paperback book which...
Provided by University of Minnesota
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White Papers
PDA and Handheld GPS Adoption in Precision Cotton Production
February 6, 2008, 12:00am PST
Advances in information technologies used in precision agriculture have increased the degree at which spatial variation in cropland and crop performance can be measured. In addition to the...
Provided by University of Minnesota
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White Papers
A Multi-Robot System for Unconfined Video-Conferencing
September 16, 2009, 12:00am PDT
Telepresence or tele-immersion technologies allow people to attend a shared meeting without being physically present in the same location. Commercial telepresence solutions available in the market...
Provided by University of Minnesota
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White Papers
The Economic Impact of Wireless Number Portability
October 14, 2009, 12:00am PDT
This paper examines the price response of wireless carriers to the introduction of number portability. The authors find that wireless prices decreased in response to number portability, but not...
Provided by University of Minnesota
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White Papers
Sampling-Based Metadata Management for Flash Storage
January 20, 2010, 12:00am PST
Existing garbage collection algorithms for the ash-based storage use score-based heuristics to select victim blocks for reclaiming free space and wear leveling. The score for a block is estimated...
Provided by University of Minnesota
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White Papers
Multi-Robot System for Unconfined Video-Conferencing
February 8, 2010, 12:00am PST
Telepresence or tele-immersion technologies allow people to attend a shared meeting without being physically present in the same location. Commercial telepresence solutions available in the market...
Provided by University of Minnesota
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White Papers
Flexible Decision Support in a Dynamic Business Network
May 28, 2008, 12:00am PDT
This paper present the design of a service oriented architecture which facilitates flexible managerial decision making in dynamic business networks. The authors have implemented and tested this...
Provided by University of Minnesota
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White Papers
S-MED: Sarcoma MicroRNA Expression Database
December 11, 2009, 12:00am PST
Human sarcomas are a heterogeneous group of over 50 different malignant tumors for which very few diagnostic markers currently exist. MicroRNA (miRNA) transcript levels have been proposed for use...
Provided by University of Minnesota
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White Papers
A Bluetooth Keyboard Attack
December 15, 2009, 12:00am PST
Bluetooth devices have become increasingly popular and are expected to surpass two billion devices sold by 2010. Bluetooth provides communication between devices, such as cell phones and headsets,...
Provided by University of Minnesota
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White Papers
PDIO: High-Performance Remote File I/O for Portals-Enabled Compute Nodes
January 1, 2010, 12:00am PST
Portals Direct I/O ("PDIO") is a special purpose middleware infrastructure for writing data from compute processor memory on Portals-enabled compute nodes to remote agents anywhere on the WAN in...
Provided by University of Minnesota
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White Papers
A Wireless Sensor Network Communication Model for Automation of Electric Power Distribution
April 20, 2010, 12:00am PDT
Automation of electric power distribution in a cost-efficient and reliable manner can be accomplished by complete automation of the load dispatch centers and substations on a large scale. For...
Provided by University of Minnesota
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White Papers
Aggregate Location Monitoring for Wireless Sensor Networks: A Histogram-Based Approach
March 5, 2009, 12:00am PST
Location monitoring systems are used to detect human activities and provide monitoring services, e.g., aggregate queries. In this paper, the authors consider an aggregate location monitoring...
Provided by University of Minnesota
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White Papers
VEIL-Click: Creating Advanced Large-Scale Ethernet Networks
October 25, 2010, 12:00am PDT
VEIL (Virtual Ethernet Identifier Layer) is a novel concept for below IP networking. It addresses the scalability, efficiency and reliability challenges facing the traditional Ethernet, while...
Provided by University of Minnesota
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White Papers
Cash Flow Risk Ratio: An Aid To Marketing Decisions
September 17, 2009, 12:00am PDT
Financial risk differs from the business risks previously described in that it results from the way the firm's capital is obtained and financed. A producer may be subject to fluctuations in...
Provided by University of Minnesota
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White Papers
Google Apps For The University Of Minnesota
August 1, 2010, 12:00am PDT
This paper is to describe the various services associated with Google Apps for the University of Minnesota that are administered by the Office of Information Technology (OIT), and identify related...
Provided by University of Minnesota
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White Papers
Using Proxies to Accelerate Cloud Applications
May 26, 2009, 12:00am PDT
A rich cloud ecosystem is unfolding with clouds emerging to provide platforms and services of many shapes and sizes. The authors speculate that future network applications may wish to utilize and...
Provided by University of Minnesota
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White Papers
Nebulas: Using Distributed Voluntary Resources to Build Clouds
May 26, 2009, 12:00am PDT
Current cloud services are deployed on well provisioned and centrally controlled infrastructures. However, there are several classes of services for which the current cloud model may not fit well:...
Provided by University of Minnesota
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White Papers
Virtual Putty: Reshaping the Physical Footprint of Virtual Machines
May 26, 2009, 12:00am PDT
Virtualization is a key technology underlying cloud computing platforms, where applications encapsulated within virtual machines are dynamically mapped onto a pool of physical servers. In this...
Provided by University of Minnesota
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White Papers
Proxy-Assisted Periodic Broadcast for Video Streaming With Multiple Servers
January 1, 2011, 12:00am PST
Large scale video streaming over Internet requires a large amount of resources such as server I/O bandwidth, network bandwidth. A number of video delivery techniques can be used to lower these...
Provided by University of Minnesota
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White Papers
Proxy-Assisted Periodic Broadcast Architecture for Large-Scale Video Streaming
January 1, 2011, 12:00am PST
Many multimedia applications rely on video streaming techniques. However, large scale video delivery is still challenging since it requires a large amount of resources. This paper proposes a...
Provided by University of Minnesota
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White Papers
Dynamic Resource Allocation for Network Aware Applications
May 11, 2010, 12:00am PDT
Network aware applications provide opportunities for adaptive resource allocations for both network resources and distributed hosting of critical applications. This paper proposes an Automatic...
Provided by University of Minnesota
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White Papers
A Model Of Indivisible Commodity Money With Minting And Melting
November 4, 2008, 12:00am PST
Monetary economists frequently imagine commodity money systems to be smoothly operating regimes where the fixed supply (or costs to produce) of the commodity provide a nominal anchor for the...
Provided by University of Minnesota
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White Papers
VIRO: A Scalable, Robust and Namespace Independent Virtual Id ROuting for Future Networks
February 14, 2011, 12:00am PST
Today's Internet is increasingly strained to meet the demands and requirements of these Internet services and their users, such as scalability to accommodate the increasing number of network...
Provided by University of Minnesota
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White Papers
From Traffic Matrix to Routing Matrix: PoP Level Traffic Characteristics for a Tier-1 ISP
June 7, 2010, 12:00am PDT
Traffic matrices play a pivotal role in the management of an ISP's network such as various levels of traffic engineering and capacity planning. However, it is unclear how the interaction between...
Provided by University of Minnesota
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White Papers
Exploring Link Correlation for Efficient Flooding in Wireless Sensor Networks
March 3, 2010, 12:00am PST
Existing flooding algorithms have demonstrated their effectiveness in achieving communication efficiency and reliability in wireless sensor networks. However, further performance improvement has...
Provided by University of Minnesota
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White Papers
Random Walks on Digraphs: A Theoretical Framework for Estimating Transmission Costs in Wireless Routing
December 15, 2009, 12:00am PST
Due to the unique characteristics of wireless technologies and the dynamics in the environments (e.g., Mobility and interference) they operate in, wireless channels are known to be time-varying,...
Provided by University of Minnesota
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White Papers
Safe Inter-Domain Routing Under Diverse Commercial Agreements
May 18, 2010, 12:00am PDT
Commercial agreements drive the routing policies used in today's Internet. The two most extensively studied commercial agreements are transit and peering; however, they are only two of many...
Provided by University of Minnesota
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White Papers
IP-Geolocation Mapping for Involving Moderately-Connected Internet Regions
July 31, 2009, 12:00am PDT
Current IP-geolocation mapping schemes primarily take delay-measurement approach, and most of them are based on the assumption of a strong correlation between networking delay and geographical...
Provided by University of Minnesota
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White Papers
Message-Efficient Dissemination for Loop-Free Centralized Routing
July 1, 2008, 12:00am PDT
With steady improvement in the reliability and performance of communication devices, routing instabilities now contribute too many of the remaining service degradations and interruptions in modern...
Provided by University of Minnesota
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White Papers
Identifying Dynamic IP Address Blocks Serendipitously Through Background Scanning Traffic
July 7, 2007, 12:00am PDT
Today's Internet contains a large portion of "Dynamic" IP addresses, which are assigned to clients upon request. A significant amount of malicious activities have been reported from dynamic IP...
Provided by University of Minnesota
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White Papers
APL: Autonomous Passive Localization for Wireless Sensors Deployed in Road Networks
July 2, 2007, 12:00am PDT
In road networks, sensor nodes are deployed sparsely (Hundreds of meters apart) to save costs. This makes the existing localization solutions based on the ranging ineffective. To address this...
Provided by University of Minnesota
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White Papers
Spatial Databases
September 19, 2007, 12:00am PDT
Spatial database research has continued to advance greatly since three decades ago, addressing the growing data management and analysis needs of spatial applications. This research has produced...
Provided by University of Minnesota
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White Papers
Design of Forwarder List Selection Scheme in Opportunistic Routing Protocol
October 22, 2008, 12:00am PDT
Unlike traditional wireless routing protocols which use a single fixed path, opportunistic routing explicitly takes advantage of the broadcast nature of wireless communications by using a set of...
Provided by University of Minnesota
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White Papers
Spatio-Temporal Network Databases and Routing Algorithms
November 17, 2008, 12:00am PST
Spatio-temporal networks are spatial networks whose topology and parameters change with time. These networks are important for many critical applications such as emergency traffic planning and...
Provided by University of Minnesota
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White Papers
TBD: Trajectory-Based Data Forwarding for Light-Traffic Vehicular Networks
November 24, 2008, 12:00am PST
This paper proposes a Trajectory-Based Data Forwarding (TBD) scheme, tailored for the data forwarding in light-traffic vehicular ad-hoc networks. The authors consider the scenarios in which...
Provided by University of Minnesota
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White Papers
Starling: Minimizing Communication Overhead in Virtualized Computing Platforms Using Decentralized Affinity-Aware Migration
December 2, 2009, 12:00am PST
Virtualization is being widely used in large-scale computing environments, such as clouds, data centers, and grids, to provide application portability and facilitate resource multiplexing while...
Provided by University of Minnesota
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Whitepapers
Recovery of Low-Rank Plus Compressed Sparse Matrices With Application to Unveiling Traffic Anomalies
May 1, 2012, 12:00am PDT
Given the superposition of a low-rank matrix plus the product of a known fat compression matrix times a sparse matrix, the goal of this paper is to establish deterministic conditions under which...
Provided by University of Minnesota
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Whitepapers
Dynamic Network Delay Cartography
April 26, 2012, 12:00am PDT
Path delays in IP networks are important metrics, required by network operators for assessment, planning, and fault diagnosis. Monitoring delays of all source-destination pairs in a large network...
Provided by University of Minnesota
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Whitepapers
Sparsity-Aware Kalman Tracking of Target Signal Strengths on a Grid
May 2, 2011, 12:00am PDT
Tracking multiple moving targets is known to be challenged by the nonlinearity present in the measurement equation, and by the computationally burdensome data association task. This paper...
Provided by University of Minnesota
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Whitepapers
Application-Level Recovery Mechanisms for Context-Aware Pervasive Computing
July 18, 2008, 12:00am PDT
The authors identify here various kinds of failure conditions and robustness issues that arise in context-aware pervasive computing applications. Such conditions are related to failures in an...
Provided by University of Minnesota
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Whitepapers
Scalable Transaction Management With Snapshot Isolation on Cloud Data Management Systems
March 9, 2012, 12:00am PST
Key-value based data storage systems such as HBase and Bigtable provide high scalability compared to traditional relational databases, however, they provide only limited transactional...
Provided by University of Minnesota
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Whitepapers
Coding Versus ARQ in Fading Channels: How reliable should the PHY be?
March 15, 2010, 12:00am PDT
This paper studies the tradeoff between channel coding and ARQ (Automatic Repeat reQuest) in Rayleigh block-fading channels. A heavily coded system corresponds to a low transmission rate with few...
Provided by University of Minnesota
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Whitepapers
On-Demand Time Synchronization With Predictable Accuracy
January 3, 2011, 12:00am PST
Time synchronization remains as a challenging task in wireless sensor networks that face severe resource constraints. Unlike previous work's aiming at pure clock accuracy, this paper proposes...
Provided by University of Minnesota
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Whitepapers
Bubble Trace: Mobile Target Tracking Under Insufficient Anchor Coverage
May 12, 2011, 12:00am PDT
As an essential requirement for surveillance systems, target tracking has been studied extensively. Most of the tracking schemes are based on trilateration, which requires each point in the...
Provided by University of Minnesota
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White Papers
Rethinking MIMO for Wireless Networks: Linear Throughput Increases With Multiple Receive Antennas
September 27, 2008, 12:00am PDT
The benefit of multiple antenna communication is investigated in wireless ad hoc networks, and the primary finding is that throughput can be made to scale linearly with the number of receive...
Provided by University of Minnesota
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White Papers
Liquidsoap: A High-Level Programming Language for Multimedia Streaming
April 14, 2011, 12:00am PDT
Generating multimedia streams, such as in a netradio, is a task which is complex and difficult to adapt to every users' needs. The authors introduce a novel approach in order to achieve it, based...
Provided by University of Minnesota
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White Papers
Codesigning the Failure Analysis and Monitoring of Large-Scale Systems
October 21, 2008, 12:00am PDT
Large-scale distributed systems provide the backbone for numerous distributed applications and online services. These systems span over a multitude of computing nodes located at different...
Provided by University of Minnesota
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White Papers
Identifying High Cardinality Internet Hosts
January 21, 2009, 12:00am PST
The Internet host cardinality, defined as the number of distinct peers that an Internet host communicates with, is an important metric for profiling Internet hosts. Some example applications...
Provided by University of Minnesota
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White Papers
Interaction, Competition and Innovation in a Service-Oriented Internet: An Economic Model
July 31, 2009, 12:00am PDT
This paper presents a new economic approach for studying competition and innovation in a complex and highly interactive system of network providers, users, and suppliers of digital goods and...
Provided by University of Minnesota
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White Papers
Sifting Through Network Data to Cull Activity Patterns With HEAPs
March 26, 2010, 12:00am PDT
Today's large campus and enterprise networks are characterized by their complexity, i.e. containing thousands of hosts, and diversity, i.e. with various applications and usage patterns. To...
Provided by University of Minnesota
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White Papers
Inferring Applications at the Network Layer Using Collective Traffic Statistics
February 18, 2010, 12:00am PST
Operating, managing and securing networks require a thorough understanding of the demands placed on the network by the endpoints it interconnects, the characteristics of the traffic the endpoints...
Provided by University of Minnesota
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White Papers
HOSPITAL: Host and Network System Profiler and Internet Traffic Analyzer
November 13, 2010, 12:00am PST
The ever-increasing complexity and diversity of the Internet pose several challenges to network operators and administrators and, in general, Internet users. More specifically, because of the...
Provided by University of Minnesota
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White Papers
Un-Zipping Cellular Infrastructure Locations Via User Geo-Intent
January 22, 2011, 12:00am PST
Despite the rapid growth in cellular data traffic, the authors know very little about the (operational) Cellular Data Service Network (CDSN) infrastructure. A key step in the process of developing...
Provided by University of Minnesota
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White Papers
Making Sense of Customer Tickets in Cellular Networks
January 14, 2011, 12:00am PST
Effective management of large-scale cellular data networks is critical to meet customer demands and expectations. Customer calls for technical support provide direct indication as to the problems...
Provided by University of Minnesota
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White Papers
Simplifying Manageability, Scalability and Host Mobility in Large-Scale Enterprise Networks Using VEIL-Click
February 27, 2011, 12:00am PST
The explosive growth in the network driven services and devices is causing existing networks to continually expand to accommodate the demands set by them. However, underlying network architecture...
Provided by University of Minnesota
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White Papers
Flat Versus Metered Rates, Bundling, and "Bandwidth Hogs"
April 7, 2011, 12:00am PDT
The current push for bandwidth caps, tiered usage pricing, and other measures in both wireless and wireline communications is usually justified by invoking the specter of "Bandwidth hogs"...
Provided by University of Minnesota
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White Papers
The Routing Continuum From Shortest-Path to All-Path: A Unifying Theory
April 7, 2011, 12:00am PDT
Routing is a critical operation in many types of networks from communication networks to transportation networks. For instance, in modern IP-based data networks, shortest path routing is most...
Provided by University of Minnesota
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White Papers
A Geometric Approach to Robustness in Complex Networks
February 20, 2011, 12:00am PST
Unlike traditional studies on network robustness, that typically treat networks as combinatoric objects and rely primarily on classical graph-theoretic concepts (e.g. minimum cuts) to characterize...
Provided by University of Minnesota
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White Papers
The Natural Resource Decision Support System (NRDSS): Creation of a 9.2 ArcGIS Server Website and a SQL Server 2005 ArcSDE 9.2 Database for the Minnesota Board of Water and Soil Resources (BWSR)
April 7, 2011, 12:00am PDT
In the fall of 2007, GeoSpatial Services (GSS) accepted a contract from the Minnesota Board of Water and Soil Resources (BWSR) to develop a 9.2 ArcGIS Server application. This application was to...
Provided by University of Minnesota
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White Papers
Compressed Sensing for Networked Data
December 5, 2007, 12:00am PST
Imagine a system with thousands or millions of independent components, all capable of generating and communicating data. A man-made system of this complexity was unthinkable a few decades ago, but...
Provided by University of Minnesota
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White Papers
Efficient Evaluation of K-Range Nearest Neighbor Queries in Road Networks
March 15, 2010, 12:00am PDT
A k-Range Nearest Neighbor (or kRNN for short) query in road networks finds the k nearest neighbors of every point on the road segments within a given query region based on the network distance....
Provided by University of Minnesota
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White Papers
Optimal Stochastic Dual Resource Allocation for Cognitive Radios Based on Quantized CSI
May 7, 2008, 12:00am PDT
The present paper deals with dynamic resource management based on quantized Channel State Information (CSI) for multi-carrier cognitive radio networks comprising primary and secondary wireless...
Provided by University of Minnesota
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White Papers
Stochastic Cross-Layer Resource Allocation for Wireless Networks Using Orthogonal Access: Optimality and Delay Analysis
January 7, 2010, 12:00am PST
Efficient design of wireless networks requires implementation of cross-layer algorithms that exploit channel state information. Capitalizing on convex optimization and stochastic approximation...
Provided by University of Minnesota
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White Papers
Joint Transmitter and Receiver Carrier Sensing Capability of CSMA in MANETs
September 23, 2009, 12:00am PDT
This paper considers the performance of the CSMA protocol with joint transmitter-receiver sensing in a wireless mobile ad hoc network. In the authors' network model, packets belonging to specific...
Provided by University of Minnesota
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White Papers
Impact of Fading on the Performance of ALOHA and CSMA
April 9, 2009, 12:00am PDT
This paper considers the performance of the ALOHA and CSMA MAC protocols in wireless ad hoc networks in the presence of fading. Increasing the rate of successful reception of packets is the...
Provided by University of Minnesota
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White Papers
Exploring In-Situ Sensing Irregularity in Wireless Sensor Networks
May 30, 2009, 12:00am PDT
The circular sensing model has been widely used to estimate performance of sensing applications in existing analyses and simulations. While this model provides valuable high-level guidelines, the...
Provided by University of Minnesota
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White Papers
Dynamic Switching-Based Data Forwarding for Low-Duty-Cycle Wireless Sensor Networks
October 26, 2010, 12:00am PDT
In this paper, the authors introduce the concept of Dynamic Switch-based Forwarding (DSF) that optimizes the expected data delivery ratio, expected communication delay, or expected energy...
Provided by University of Minnesota
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White Papers
Cscan: A Correlation-Based Scheduling Algorithm for Wireless Sensor Networks
December 14, 2007, 12:00am PST
Dynamic scheduling management in wireless sensor networks is one of the most challenging problems in long lifetime monitoring applications. In this paper, the authors propose and evaluate a novel...
Provided by University of Minnesota
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White Papers
Safeguarding Schedule Updates in Wireless Sensor Networks
July 9, 2011, 12:00am PDT
Working in the duty cycling mode enables sensor nodes to utilize limited energy efficiently instead of unnecessary idle listening. In such networks, awareness of neighboring nodes' working...
Provided by University of Minnesota
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White Papers
Virtual Scanning Algorithm for Road Network Surveillance
October 12, 2009, 12:00am PDT
This paper proposes a VIrtual Scanning Algorithm (VISA), tailored and optimized for road network surveillance. The authors' design uniquely leverages upon the facts that the movement of targets...
Provided by University of Minnesota
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White Papers
ESC: Energy Synchronized Communication in Sustainable Sensor Networks
September 14, 2009, 12:00am PDT
With advances in energy harvesting techniques, it is now feasible to build Sustainable Sensor Networks (SSN) to support long-term applications. Unlike battery-powered sensor networks, the...
Provided by University of Minnesota
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White Papers
Spatiotemporal Delay Control for Low-Duty-Cycle Sensor Networks
September 8, 2009, 12:00am PDT
Data delivery is a major function of sensor network applications. Many applications, such as military surveillance, require the detection of interested events to be reported to a command center...
Provided by University of Minnesota
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White Papers
Bounding Communication Delay in Energy Harvesting Sensor Networks
May 20, 2010, 12:00am PDT
In energy-harvesting sensor networks, limited ambient energy from environment necessitates sensor nodes to operate at a low-duty-cycle, i.e., they communicate briefly and stay asleep most of time....
Provided by University of Minnesota
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White Papers
Correlated Flooding in Low-Duty-Cycle Wireless Sensor Networks
August 21, 2011, 12:00am PDT
Flooding in low-duty-cycle wireless sensor networks is very costly due to asynchronous schedules of sensor nodes. To adapt existing flooding-tree-based designs for low-duty-cycle networks, the...
Provided by University of Minnesota
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White Papers
OPEN: Passive Network Performance Estimation for Data-Intensive Applications
November 24, 2008, 12:00am PST
Distributed computing applications are increasingly utilizing distributed data sources. However, the unpredictable cost of data access in large-scale computing infrastructures can lead to severe...
Provided by University of Minnesota
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White Papers
VISA: Virtual Scanning Algorithm for Dynamic Protection of Road Networks
August 22, 2008, 12:00am PDT
This paper proposes a VIrtual Scanning Algorithm (VISA), tailored and optimized for road network surveillance. The authors' design uniquely leverages upon the facts that the movement of targets...
Provided by University of Minnesota
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