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Columbia University
(362 results)-
White Papers
A Counter-Cyclical Framework For A Development-Friendly International Financial Architecture
June 1, 2007, 12:00am PDT
The major task of a development-friendly international financial architecture is to mitigate procyclical effects of financial markets and open "policy space" for counter-cyclical macroeconomic...
Provided by Columbia University
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White Papers
Prudential Bank Regulation: What~s Broke And How To Fix It
April 1, 2009, 12:00am PDT
Financial crises produce regulatory reactions, for better or worse, often for worse. The reforms in reaction to the current crisis have not yet been settled, and prospects for reform are mixed....
Provided by Columbia University
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White Papers
Investor Attitudes Towards Risk And Uncertainty And Reactions To Market Turmoil
June 28, 2010, 12:00am PDT
In order to assess how individual small investors have reacted to recent adverse events in world financial markets and whether these reactions are mediated by their risk attitudes, a survey was...
Provided by Columbia University
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White Papers
Building A New Leadership Perspective In Four Weeks
June 29, 2010, 12:00am PDT
Though the idea of leaving work for four weeks may seem daunting, many executives are embracing the opportunity to undergo a transformative experience. The Columbia Senior Executive Program, a...
Provided by Columbia University
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White Papers
General Management: Making The Transition To Cross-Functional Leadership
June 29, 2010, 12:00am PDT
David Dinsmore, editor of the Scottish Sun, hopes to transition to a general management role in the future and took advantage of The General Management Leadership Program last fall to prepare. As...
Provided by Columbia University
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White Papers
Integrating China Into Your Global Business Strategy
June 29, 2010, 12:00am PDT
A new program, Global Business Strategy: China, will be offered by Columbia Business School Executive Education August 5-6, 2010. Presented in partnership with Cheung Kong Graduate School of...
Provided by Columbia University
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White Papers
Neuroscience's Lessons For Leadership
June 29, 2010, 12:00am PDT
Understanding some basic lessons from neuroscience can make you a more effective leader - and help you avoid mental practices that carry serious risks for your health, according to executive coach...
Provided by Columbia University
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White Papers
Motivating During Times Of Change
April 14, 2010, 12:00am PDT
Managers facing the task of doing more with fewer resources during this economic recovery can turn critical situations into opportunities to show their sophistication as leaders. "Change...
Provided by Columbia University
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White Papers
Mastering Strategy: What The Experts Say
October 5, 2009, 12:00am PDT
"Most participants come to a strategy program because they recognize that it is an essential part of leading effectively," says Willie Pietersen, Professor of The Practice of Management, Columbia...
Provided by Columbia University
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White Papers
Aligning Technology With Business Strategy
October 5, 2009, 12:00am PDT
"Injecting technology into a company without process and organizational change creates waste and chaos," George Colony, founder and CEO of Forrester Research, has famously said. It's true. Despite...
Provided by Columbia University
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White Papers
Spotlight: Strategy Is Action - Not Just A Word
March 14, 2008, 12:00am PDT
Strategy. The word itself conjures excitement, even intrigue. But strategy is not just a word: it is an action. "Most participants come to a strategy program because they recognize that it is an...
Provided by Columbia University
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White Papers
Theory Into Practice: Change Management: One Of The Most Crucial Tests Of Leadership
March 14, 2008, 12:00am PDT
One of the most challenging business situations that leaders can face is to guide people through change. According to Joel Brockner, Phillip Hettleman Professor of Business and Chair of Management...
Provided by Columbia University
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White Papers
Professor McGrath On Discovery-Driven Growth
April 14, 2010, 12:00am PDT
Rita G. McGrath, associate professor of management, recently spoke with BusinessWeek about the theories and concepts explored in her newest book, Discovery-Driven Growth: A Breakthrough Process to...
Provided by Columbia University
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White Papers
Apiary: Easy-to-Use Desktop Application Fault Containment on Commodity Operating Systems
May 7, 2010, 12:00am PDT
Desktop computers are often compromised by the interaction of unsecure data and buggy software. To address this problem, the authors present Apiary, a system that transparently contains...
Provided by Columbia University
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White Papers
Outsourcing: Is the Third Industrial Revolution Really Around the Corner?
September 1, 2007, 12:00am PDT
Job losses due to a shift of economic activities from home to abroad had been debated almost as long as free trade. The traditional "Employment Argument for Protection" has focused on merchandise...
Provided by Columbia University
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White Papers
Web-Collaborative Filtering: Recommending Music by Spidering The Web
January 1, 2010, 12:00am PST
Authors show that it is possible to collect data that is useful for collaborative filtering (CF) using an autonomous Web spider. In CF, entities are recommended to a new user based on the stated...
Provided by Columbia University
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White Papers
WebSOS: Protecting Web Servers From DDoS Attacks
January 1, 2010, 12:00am PST
This paper presents the WebSOS architecture, a mechanism for countering Denial of Service (DoS) attacks against web servers. WebSOS uses a combination of overlay networking, content-based routing,...
Provided by Columbia University
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White Papers
Sequential Projection Learning for Hashing With Compact Codes
May 9, 2010, 12:00am PDT
Hashing based Approximate Nearest Neighbor (ANN) search has attracted much attention due to its fast query time and drastically reduced storage. However, most of the hashing methods either use...
Provided by Columbia University
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White Papers
Requirements for Scalable Access Control and Security Management Architectures
January 1, 2010, 12:00am PST
Maximizing local autonomy has led to a scalable Internet. Scalability and the capacity for distributed control have unfortunately not extended well to resource access control policies and...
Provided by Columbia University
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White Papers
Swift Fox Whitepaper
February 24, 2010, 12:00am PST
For over a decade, wireless sensor networks (WSNs) fostered the development of new applications and trends in the broad areas of mobile and opportunistic computing. Such networks are composed of...
Provided by Columbia University
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White Papers
A Market-Based Bandwidth Charging Framework
March 18, 2009, 12:00am PDT
The increasing demand for high-bandwidth applications such as video-on-demand and grid computing is reviving interest in bandwidth reservation schemes. Earlier attempts did not catch on for a...
Provided by Columbia University
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White Papers
Meeting QOS Guarantees by End-to-End QOS Monitoring and Adaptation
November 5, 2007, 12:00am PST
The design and implementation of the transport layer of a native ATM protocol stack and its embedding into an overall architecture that provides end-to-end quality of service (QOS) is presented....
Provided by Columbia University
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White Papers
Advertising And Collusion In Retail Markets
November 25, 2007, 12:00am PST
In this paper, authors investigate advertising behaviors of privately informed firms when some consumers use an advertising search rule, whereby they go to the firm that advertises the most. In...
Provided by Columbia University
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White Papers
Characterizing Self-Healing Software Systems
January 1, 2010, 12:00am PST
The introduction of self-healing capabilities to software systems could offer a way to alter the current, unfavorable imbalance in the software security arms race. Consequently, self-healing...
Provided by Columbia University
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White Papers
Managing Access Control in Large Scale Heterogeneous Networks
January 1, 2010, 12:00am PST
The design principle of maximizing local autonomy except when it conflicts with global robustness has led to a scalable Internet with enormous heterogeneity of both applications and...
Provided by Columbia University
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White Papers
Experimental Analysis of Multi Interface Mobility Management with SIP and MIP
January 1, 2010, 12:00am PST
The authors provide an experimental analysis of MIMM (Multi-Interface Mobility Management) demonstrated in a heterogeneous network involving 802. 1 lb and CDMA access technologies. They have...
Provided by Columbia University
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White Papers
Systems Optimization for Mobility Management
April 28, 2010, 12:00am PDT
Wireless network mobility frees the user from location dependence but requires additional mechanism to preserve network connectivity. Mobility events occur when user movement causes one network...
Provided by Columbia University
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White Papers
Distributed Delay Estimation and Call Admission Control in IEEE 802.11 WLANs
December 3, 2007, 12:00am PST
Voice over WiFi (VoWiFi) will soon be the main alternative to cellular phones. Providing a satisfactory user experience remains difficult, however. This paper focuses on Call Admission Control...
Provided by Columbia University
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White Papers
Tamper Evident Microprocessors
April 1, 2010, 12:00am PDT
Most security mechanisms proposed to date unquestioningly place trust in microprocessor hardware. This trust, however, is misplaced and dangerous because microprocessors are vulnerable to insider...
Provided by Columbia University
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White Papers
Criteria For Financial Regulation After The Current Crisis
June 20, 2008, 12:00am PDT
The recent financial crisis is a result of both inherent flows in the way financial market operate (e.g. their tendency to boom bust behavior) and insufficient, as well as inappropriate,...
Provided by Columbia University
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White Papers
Delegation And The Regulation Of Finance In The United States Since 1950
August 17, 2009, 12:00am PDT
What determines the extent and structure of financial regulation? This question matters for two reasons. First, it matters because, as North and Shirley says "A country's financial institutions...
Provided by Columbia University
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White Papers
Computational Cameras: Approaches, Benefits and Limits
January 15, 2011, 12:00am PST
A computational camera uses a combination of optics and software to produce images that cannot be taken with traditional cameras. In the last decade, computational imaging has emerged as a vibrant...
Provided by Columbia University
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White Papers
CONFU: Configuration Fuzzing Testing Framework for Software Vulnerability Detection
March 31, 2010, 12:00am PDT
Many software security vulnerabilities only reveal themselves under certain conditions, i.e., particular configurations and inputs together with a certain runtime environment. One approach to...
Provided by Columbia University
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White Papers
Empirical Study of Concurrency Mutation Operators for Java
April 29, 2010, 12:00am PDT
Mutation testing is a white-box fault-based software testing technique that applies mutation operators to modify program source code or byte code in small ways and then runs these modified...
Provided by Columbia University
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White Papers
Simple-VPN: Simple IPsec Configuration
July 19, 2010, 12:00am PDT
The IPsec protocol promised easy, ubiquitous encryption. That has never happened. For the most part, IPsec usage is confined to VPNs for road warriors, largely due to needless configuration...
Provided by Columbia University
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White Papers
Baseline: Metrics for Setting a Baseline for Web Vulnerability Scanners
September 22, 2010, 12:00am PDT
As web scanners are becoming more popular because they are faster and cheaper than security consultants, the trend of relying on these scanners also brings a great hazard: users can choose a weak...
Provided by Columbia University
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White Papers
Towards Using Cached Data Mining for Large Scale Recommender Systems
October 29, 2010, 12:00am PDT
Recommender systems are becoming increasingly popular. As these systems become commonplace and the number of users increases, it will become important for these systems to be able to cope with a...
Provided by Columbia University
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White Papers
Modeling User Search Behavior for Masquerade Detection
December 22, 2010, 12:00am PST
Masquerade attacks are a common security problem that is a consequence of identity theft. Masquerade detection may serve as a means of building more secure and dependable systems that authenticate...
Provided by Columbia University
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White Papers
A Comprehensive Survey of Voice Over IP Security Research
December 22, 2010, 12:00am PST
This paper presents a comprehensive survey of Voice over IP security academic research, using a set of 245 publications forming a closed cross-citation set. The authors classify these papers...
Provided by Columbia University
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White Papers
IEEE 802.11 in the Large: Observations at an IETF Meeting
September 13, 2007, 12:00am PDT
The authors observed wireless network traffic at the 65th IETF Meeting in Dallas, Texas in March of 2006, attended by approximately 1200 engineers. The event was supported by a very large number...
Provided by Columbia University
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White Papers
Linux-CR: Transparent Application Checkpoint-Restart in Linux
July 1, 2010, 12:00am PDT
Application checkpoint-restart is the ability to save the state of a running application so that it can later resume its execution from the time of the checkpoint. Application checkpoint-restart...
Provided by Columbia University
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White Papers
Bypassing Races in Live Applications With Execution Filters
September 24, 2010, 12:00am PDT
Deployed multithreaded applications contain many races because these applications are difficult to write, test, and debug. Worse, the number of races in deployed applications may drastically...
Provided by Columbia University
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White Papers
Finding Concurrency Errors in Sequential Code -OS-level, In-Vivo Model Checking of Process Races
April 15, 2011, 12:00am PDT
While thread races have drawn huge attention from the research community, little has been done for process races, where multiple - possibly sequential - processes access a shared resource, such as...
Provided by Columbia University
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White Papers
Efficient Deterministic Multithreading Through Schedule Relaxation
October 26, 2011, 12:00am PDT
Deterministic MultiThreading (DMT) eliminates many pernicious software problems caused by non-determinism. It works by constraining a program to repeat the same thread interleavings, or schedules,...
Provided by Columbia University
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White Papers
Concurrency Attacks
April 21, 2012, 12:00am PDT
Just as errors in sequential programs can lead to security exploits, errors in concurrent programs can lead to concurrency attacks. Questions such as whether these attacks are real and what...
Provided by Columbia University
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White Papers
The Time-Correlated Update Problem
August 24, 2007, 12:00am PDT
Recent advances in the fields of sensor networks and mobile robotics have provided the means to place monitoring/sensing equipment in an increasingly wide variety of environments - a significant...
Provided by Columbia University
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White Papers
Roomba MADNeT: A Mobile Ad-Hoc Delay Tolerant Network Testbed
November 29, 2007, 12:00am PST
The authors have built a Mobile, Ad-hoc, Delay tolerant, Network Testbed (MADNeT). Their testbed is geared towards enabling the exploration of highly disconnected networks whose nodes must store...
Provided by Columbia University
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White Papers
Embedded Processor Virtualization for Broadband Grid Computing
November 10, 2011, 12:00am PST
The authors implemented and evaluated a heterogeneous system architecture that combines a traditional computer cluster with a broadband network of embedded Set-Top Box (STB) devices to provide a...
Provided by Columbia University
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White Papers
Nanophotonic Optical Interconnection Network Architecture for On-Chip and Off-Chip Communications
January 22, 2008, 12:00am PST
An architecture for an integrated low-power, high-bandwidth optical interconnection network based on microring resonator technology is presented. The layout of the non-blocking network is...
Provided by Columbia University
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White Papers
On-Chip Photonic Communication for High-Performance Multi-Core Processors
October 11, 2008, 12:00am PDT
The quest for high-performance and low-power has brought computer architects to design multi-core architectures where an increasing number of parallel processing cores are integrated on a single...
Provided by Columbia University
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White Papers
An Integrated Four-Phase Buck Converter Delivering 1A/mm2 With 700ps Controller Delay and Network-on-Chip Load in 45-Nm SOI
April 19, 2011, 12:00am PDT
Performance-per-watt is an increasingly important metric for microprocessors as it is now common for the thermal envelope to limit computational performance of an IC. Dynamic Voltage and Frequency...
Provided by Columbia University
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White Papers
Performance Evaluation of Resource Allocation Policies for Energy Harvesting Devices
April 12, 2011, 12:00am PDT
The authors focus on resource allocation for energy harvesting devices. They analytically and numerically evaluate the performance of algorithms that determine time fair energy allocation in...
Provided by Columbia University
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White Papers
Toward Practical Private Access to Data Centers Via Parallel ORAM
March 23, 2012, 12:00am PDT
Today, accessing maps, pictures, status updates, and other data from online services is de rigueur, but these accesses may leak private information. Previous work proposed using a secure...
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White Papers
Selective Gossip
October 13, 2009, 12:00am PDT
Motivated by applications in compression and distributed transform coding, the authors propose a new gossip algorithm called Selective Gossip to efficiently compute sparse approximations of...
Provided by Columbia University
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White Papers
Adaptive Spectrum Sensing for Agile Cognitive Radios
January 15, 2010, 12:00am PST
Vast segments of the frequency spectrum are licensed to specific users for particular applications. These legacy users, however, often under-utilize their designated spectrum segments. Unlicensed...
Provided by Columbia University
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White Papers
Sharpness a Tight Condition for Scalability
May 5, 2008, 12:00am PDT
A distributed system is scalable if the rate at which it completes its computation and communication tasks does not depend on its size. As an example, the scalability of a peer-to-peer application...
Provided by Columbia University
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White Papers
Energy Efficient Offloading of 3G Networks
August 25, 2011, 12:00am PDT
The increase in data consumed by smart-phones is becoming a huge problem for mobile operators. In three years, mobile data traffic in AT&T's network rose 5000%. The US operators invest $50 billion...
Provided by Columbia University
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White Papers
On the Design and Execution of Cyber-Security User Studies: Methodology, Challenges, and Lessons Learned
June 21, 2011, 12:00am PDT
Real-world data collection poses an important challenge in the security field. Insider and masquerader attack data collection poses even a greater challenge. Very few organizations acknowledge...
Provided by Columbia University
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White Papers
Killing the Myth of Cisco IOS Diversity: Recent Advances in Reliable Shellcode Design
June 12, 2011, 12:00am PDT
IOS firmware diversity, the unintended consequence of a complex firmware compilation process, has historically made reliable exploitation of Cisco routers difficult. With approximately 300,000...
Provided by Columbia University
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White Papers
Cross-Domain Collaborative Anomaly Detection: So Far Yet so Close
August 17, 2011, 12:00am PDT
Web applications have emerged as the primary means of access to vital and sensitive services such as online payment systems and databases storing personally identifiable information....
Provided by Columbia University
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White Papers
Defending Embedded Systems With Software Symbiotes
August 9, 2011, 12:00am PDT
A large number of embedded devices on the internet, such as routers and VOIP phones, are typically ripe for exploitation. Little to no defensive technology, such as AV scanners or IDS's, are...
Provided by Columbia University
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White Papers
ALDR: A New Metric for Measuring Effective Layering of Defenses
November 21, 2011, 12:00am PST
Attackers continually innovate and craft attacks that penetrate existing defenses. New security product purchasing decisions are key in order to keep organizations as secure as possible. Current...
Provided by Columbia University
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White Papers
Generalized Slotted-Aloha in Cooperative, Competitive and Adversarial Environments
January 1, 2012, 12:00am PST
Aloha and its slotted variation are commonly deployed Medium Access Control (MAC) protocols in environments where multiple transmitting devices compete for a medium, yet may have difficulty...
Provided by Columbia University
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White Papers
Throughput and Fairness in Random Access Networks
January 1, 2012, 12:00am PST
This paper present an throughput analysis of log-utility and max-min fairness. Assuming all nodes interfere with each other, completely or partially, log-utility fairness significantly enhances...
Provided by Columbia University
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White Papers
An Analysis of Generalized Slotted-Aloha Protocols
October 24, 2007, 12:00am PDT
Aloha and its slotted variation are commonly deployed Medium Access Control (MAC) protocols in environments where multiple transmitting devices compete for a medium, yet may have difficulty...
Provided by Columbia University
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White Papers
Spreadable Connected Autonomic Networks (SCAN)
March 30, 2008, 12:00am PDT
A Spreadable Connected Autonomic Network (SCAN) is a mobile network that automatically maintains its own connectivity as nodes move. The authors envision SCANs to enable a diverse set of...
Provided by Columbia University
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White Papers
The Shapley Profit for Content, Transit and Eyeball Internet Service Providers
October 7, 2010, 12:00am PDT
Internet Service Providers (ISPs) depend on one another to provide global network services. However, the profit-seeking nature of the ISPs leads to selfish behaviors that result in inefficiencies...
Provided by Columbia University
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White Papers
Impact of Load Sharing on Provisioning Services With Consistency Requirements
January 1, 2012, 12:00am PST
Providers of services such as online auctions must provision servers to respond quickly to users' requests. Assigning each service to its own set of servers can result in some servers being...
Provided by Columbia University
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White Papers
Control Plane Resilience: The Method of Strong Detection
January 1, 2012, 12:00am PST
For the past several decades, work that develops and analyzes network routing protocols has assumed that each network node properly implements the algorithm that establishes routes through the...
Provided by Columbia University
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White Papers
The Shapley Value: Its Use and Implications on Internet Economics
September 17, 2008, 12:00am PDT
The Internet is composed of thousand of autonomous Internet Service Providers (ISPs). On the one hand, they cooperate with one another to provide services for their customers; on the other hand,...
Provided by Columbia University
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White Papers
Improving BitTorrent: A Simple Approach
January 25, 2008, 12:00am PST
Measurement studies have shown that real world BitTorrent (BT) systems exhibit high seed capacity. Thus, appropriate use of seed capacity can have a significant effect on BT performance. Moreover,...
Provided by Columbia University
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White Papers
Crosstalk-Aware Anycast Routing and Wavelength Assignment in Optical WDM Networks
August 24, 2010, 12:00am PDT
In this paper, the authors discuss the performance of physical-layer impairment-aware anycast communication over transparent optical networks. High-bandwidth applications, such as grid computing...
Provided by Columbia University
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White Papers
The SPARCHS Project: Hardware Support for Software Security
July 1, 2011, 12:00am PDT
Current security research is largely oriented to top-down design, where the most exposed layers - the network/application layers - are first studied assuming the lower layers are secure, even when...
Provided by Columbia University
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White Papers
The Impact of TLS on SIP Server Performance: Measurement and Modelling
December 10, 2011, 12:00am PST
Securing VoIP is a crucial requirement for its successful adoption. A key component of this is securing the signaling path, which is performed by SIP. Securing SIP is accomplished by using TLS...
Provided by Columbia University
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White Papers
Z2Z: Discovering Zeroconf Services Beyond Local Link
October 5, 2007, 12:00am PDT
The Zeroconf technology, better known as Apple Bonjour, is one of the most prominent solutions for service discovery in local area networks. Zeroconf uses multicast to attain its goal of...
Provided by Columbia University
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White Papers
Bypassing Races in Live Applications With Execution Filter
September 22, 2010, 12:00am PDT
Deployed multi-threaded applications contain many races because these applications are difficult to write, test, and debug. Worse, the number of races in deployed applications may drastically...
Provided by Columbia University
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White Papers
The Design of the OpenBSD Cryptographic Framework
January 1, 2012, 12:00am PST
Cryptographic transformations are a fundamental building block in many security applications and protocols. To improve performance, several vendors market hardware accelerator cards. However,...
Provided by Columbia University
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White Papers
Usable Secure Private Search
November 6, 2011, 12:00am PDT
It is a common requirement in real world applications for untrusting parties to be able to share sensitive information securely. The authors describe a Secure Anonymous Database Search scheme...
Provided by Columbia University
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White Papers
GRAND: Git Revisions As Named Data
March 25, 2011, 12:00am PDT
GRAND is an experimental extension of Git, a distributed revision control system, which enables the synchronization of Git repositories over Content-Centric Networks (CCN). GRAND brings some of...
Provided by Columbia University
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White Papers
A Secure and Privacy-Preserving Targeted Ad-System
February 28, 2010, 12:00am PST
Thanks to its low product-promotion cost and its efficiency, targeted online advertising has become very popular. Unfortunately, being profile-based, online advertising methods violate consumers'...
Provided by Columbia University
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