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McGill University
(112 results)-
White Papers
Leveraging Public Resource Pools to Improve the Service Compliances of Computing Utilities
January 16, 2009, 12:00am PST
Computing utilities are emerging as an important part of the infrastructure for outsourcing computer services. One of the major objectives of computing utilities is to maximize their net profit...
Provided by McGill University
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Case Studies
EBay - ECommerce Platform a Case Study in Scalability
January 1, 2010, 12:00am PST
This case study speaks about the search and trading platform of eBay, an eCommerce giant. The company employs a vast multitude of platforms including PayPal and Skype. Most of these platforms have...
Provided by McGill University
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White Papers
Regulatory Network Motifs and Hotspots of Cancer Genes in a Mammalian Cellular Signalling Network
January 26, 2007, 12:00am PST
Mutations or overexpression of signalling genes can result in cancer development and metastasis. In this study, authors manually assembled a human cellular signalling network and developed a...
Provided by McGill University
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White Papers
Cross-Layer Adaptive Routing and Wavelength Assignment in All-Optical Networks
May 20, 2008, 12:00am PDT
InWDMall-optical networks where electrical regeneration is not available, physical impairments due to propagation in the fibers, amplifier noise, and leaks between channels and in the switches...
Provided by McGill University
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White Papers
Beyond Crossing Bres: Probabilistic Tractography of Complex Subvoxel Fibre Geometries
January 1, 2011, 12:00am PST
Despite the development of different tractography schemes for reconstruction of fibre pathways, a comprehensive methodology that is capable of providing reliable uncertainty measures of the...
Provided by McGill University
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White Papers
3D Stochastic Completion Fields for Fiber Tractography
April 15, 2009, 12:00am PDT
The authors approach the problem of fiber tractography from the viewpoint that a computational theory should relate to the underlying quantity that is being measured - the diffusion of water...
Provided by McGill University
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White Papers
Market Skewness Risk And The Cross-Section Of Stock Returns
July 30, 2010, 12:00am PDT
The cross-section of stock returns has substantial exposure to risk captured by higher moments in market returns. The authors estimate these moments from daily S&P 500 index option data. The...
Provided by McGill University
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White Papers
Time-Varying Jump Intensities And Fat Tail Dynamics: Evidence From S&P500 Returns And Options
May 19, 2010, 12:00am PDT
The authors present a new discrete-time GARCH jump framework that allows for rich dynamics in higher moments by combining heteroskedastic processes with fat-tailed innovations in returns and...
Provided by McGill University
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White Papers
Exploring Time-Varying Jump Intensities: Evidence From S&P500 Returns And Options
November 16, 2008, 12:00am PST
Standard empirical investigations of jump dynamics in returns and volatility are fairly complicated due to the presence of latent continuous-time factors. The authors present a new discrete-time...
Provided by McGill University
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White Papers
Competing Portfolio Constraints
May 20, 2009, 12:00am PDT
Financial market liberalization has had different effects in different countries. On average, liberalization seems to have a positive but relatively small effect on a market's correlation with...
Provided by McGill University
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White Papers
Can Bailouts Restore Investor Confidence? The Roles Of Governance And Governments
July 1, 2009, 12:00am PDT
The current economic crisis has raised fundamental questions about the efficiency of the modern financial system. The subprime crises and subsequent credit crunch have motivated governments and...
Provided by McGill University
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White Papers
Optimal Sampling Rate Assignment With Dynamic Route Selection for Real-Time Wireless Sensor Networks
October 23, 2008, 12:00am PDT
The allocation of computation and communication resources in a manner that optimizes aggregate system performance is a crucial aspect of system management. Wireless sensor network poses new...
Provided by McGill University
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White Papers
Location Cheating: A Security Challenge to Location-Based Social Network Services
February 21, 2011, 12:00am PST
Location-based mobile social network services such as foursquare and Gowalla have grown exponentially over the past several years. These location-based services utilize the geographical position...
Provided by McGill University
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White Papers
A Priority-Based Model of Routing
February 5, 2008, 12:00am PST
The authors consider a priority-based selfish routing model, where agents may have different priorities on a link. An agent with a higher priority on a link can traverse it with a smaller delay or...
Provided by McGill University
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White Papers
The Prehistoric Origins Of European Economic Integration
September 4, 2006, 12:00am PDT
In recent decades the conventional dating of the origins of Western Europe's economic ascendancy to the tenth and eleventh centuries AD has been called in question by archaeological findings and...
Provided by McGill University
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White Papers
On the Security of Generalized Jacobian Cryptosystems
March 24, 2007, 12:00am PDT
Generalized Jacobians are natural candidates to use in Discrete Logarithm (DL) based cryptography since they include the multiplicative group of finite fields, algebraic tori, elliptic curves as...
Provided by McGill University
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White Papers
AspectMATlab: An Aspect-Oriented Scientific Programming Language
February 1, 2010, 12:00am PST
There has been relatively little work done in the compiler research community for incorporating aspect-oriented features in scientific and dynamic programming languages. MATLAB is a dynamic...
Provided by McGill University
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White Papers
Relational Aspects as Tracematches
February 8, 2008, 12:00am PST
The relationships between objects in an object-oriented program are an essential property of the program's design and implementation. Two previous approaches to implement relationships with...
Provided by McGill University
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White Papers
SemDiff: Analysis and Recommendation Support for API Evolution
February 3, 2009, 12:00am PST
As a framework evolves, changes in its Application Programming Interface (API) can break client programs that extend the framework. Repairing a client program can be a challenging task because...
Provided by McGill University
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White Papers
Endogenizing Growth Via A Lag For Apprenticing
April 6, 2010, 12:00am PDT
The authors take up a growth model with both skilled and unskilled labor, and a steady migration of some unskilled workers, who undertake apprenticing, to the skilled group of workers....
Provided by McGill University
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White Papers
Global Dynamics In A Growth Model With An Exhaustible Resource
July 1, 2008, 12:00am PDT
The authors revisit the seminal growth model with exhaustible resources, the so called Dasgupta-Heal-Stiglitz-Solow model (DHSS). For this optimal control problem with two state variables, they...
Provided by McGill University
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White Papers
The Effects Of Trade Liberalization On R&D, Industry Productivity And Welfare When Firms Are Heterogeneous
March 20, 2007, 12:00am PDT
This paper develops an oligopolistic model of international trade with heterogeneous firms to examine how trade liberalization affects R&D (Research & Development) investment, industry...
Provided by McGill University
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White Papers
What Explains The German Labor Market Miracle In The Great Recession?
May 31, 2011, 12:00am PDT
Germany experienced an even deeper fall in GDP in the Great Recession than the United States with little employment loss. Employers' reticence to hire in the preceding expansion - associated in...
Provided by McGill University
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White Papers
A Complete Descritpion of the UnPython and Jit4GPU Framework
March 29, 2011, 12:00am PDT
A new compilation framework enables the execution of numerical-intensive applications in an execution environment that is formed by multi-core Central Processing Units (CPUs) and Graphics...
Provided by McGill University
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White Papers
Throughput and Delay Analysis for Convergecast With MIMO in Wireless Networks
June 10, 2011, 12:00am PDT
This paper investigates throughput and delay based on a traffic pattern, called converge-cast, where each of the n nodes in the network acts as a destination with k randomly chosen sources...
Provided by McGill University
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White Papers
An Autonomic Approach for Replication of Internet-Based Services
October 25, 2008, 12:00am PDT
As more and more applications are deployed as Internet-based services, they have to be available anytime anywhere in a seamless manner. This requires the underlying infrastructure to provide...
Provided by McGill University
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White Papers
Enhancing Edge Computing With Database Replication
June 28, 2007, 12:00am PDT
As the use of the Internet continues to grow explosively, edge computing has emerged as an important technique for delivering Web content over the Internet. Edge computing moves data and...
Provided by McGill University
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White Papers
Boosting Database Replication Scalability Through Partial Replication and 1-Copy-Snapshot-Isolation
September 13, 2007, 12:00am PDT
Databases have become a crucial component in modern information systems. At the same time, they have become the main bottleneck in most systems. Database replication protocols have been proposed...
Provided by McGill University
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Software
McGill 1.1 (Mobile)
August 15, 2011, 12:00am PDT
Official McGill University iPhone App. Provides quick access to McGill University news, library, athletics, emergency procedures, also provides personal info include class schedule, account...
Provided by McGill University
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White Papers
Business Cycles And The Bankruptcy Code: A Structural Approach
January 15, 2011, 12:00am PST
The authors develop a structural equilibrium model with business cycles and use it to examine the economic implications of voluntary filing for bankruptcy. They find that conflict of interests...
Provided by McGill University
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White Papers
A New Class Of Asset Pricing Models With Lévy Processes: Theory And Applications
December 20, 2008, 12:00am PST
The authors develop a new class of discrete-time asset pricing models with Lévy processes and use a¢ ne GARCH dynamics to drive the models’ time variation. These models are easy to implement...
Provided by McGill University
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Software
CL2Go 1.5 (Mobile)
November 22, 2010, 12:00am PST
CL2G0 is not another application to manage your personal contact list. CL2G0 is for business environment. It maintains updated list of contacts for formal dynamic community, group, committee, etc....
Provided by McGill University
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White Papers
The Capacity of MIMO Channels With Per-Antenna Power Constraint
June 24, 2011, 12:00am PDT
The authors establish the optimal input signaling and the capacity of MIMO channels under per-antenna power constraint. While admitting a linear eigenbeam structure, the optimal input is no longer...
Provided by McGill University
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White Papers
Capacity Impact of Location-Aware Cognitive Sensing
August 14, 2009, 12:00am PDT
The authors study Bayesian detection based cognitive sensing and analyze its impact on the capacity in various cases of location information. In a network of one primary and one cognitive user,...
Provided by McGill University
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White Papers
Distributed Group Communication System for Mobile Devices Based on SMS
September 11, 2010, 12:00am PDT
This paper presents a group communication system for mobile devices, called DistributedGCS. Mobile communication is slow, expensive and suffers from occasional disconnections, especially when...
Provided by McGill University
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White Papers
Partial Decode-Forward Binning Schemes for the Causal Cognitive Relay Channels
December 7, 2011, 12:00am PST
The causal Cognitive Relay Channel (CRC) has two sender-receiver pairs, in which the second sender obtains information from the first sender causally and assists the transmission of both senders....
Provided by McGill University
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White Papers
On Compress-Forward Without Wyner-Ziv Binning for Relay Networks
November 10, 2011, 12:00am PST
Noisy network coding is recently proposed for the general multi-source network by Lim, Kim, El Gamal and Chung. This scheme builds on Compress-Forward (CF) relaying but involves three new ideas,...
Provided by McGill University
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White Papers
Energy Minimization for the Half-Duplex Relay Channel With Decode-Forward Relaying
August 13, 2011, 12:00am PDT
The authors analyze coding for energy efficiency in the relay channel for a fixed source rate. They propose a comprehensive half-duplex decode-forward coding scheme and three optimal sets of power...
Provided by McGill University
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White Papers
Achievable Rates and Outer Bound for the Half-Duplex MAC With Generalized Feedback
July 29, 2011, 12:00am PDT
This paper provides comprehensive coding and outer bound for the half-duplex Multiple Access Channel with Generalized Feedback (MAC-GF). Two users communicate with one destination over a discrete...
Provided by McGill University
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White Papers
Compress-Forward Without Wyner-Ziv Binning for the One-Way and Two-Way Relay Channels
October 31, 2011, 12:00am PDT
The authors consider the role of Wyner-Ziv binning in compress-forward for relay channels. In the one-way relay channel, they analyze a compress-forward scheme without Wyner-Ziv binning but with...
Provided by McGill University
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White Papers
Distributed Pareto-Optimal Power Control in Femtocell Networks
July 7, 2011, 12:00am PDT
This paper aims to devise a power control solution for femtocell networks that can be implemented distributively and, more importantly, is optimal in Pareto sense. For this, a complete...
Provided by McGill University
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White Papers
Rate Maximization for Half-Duplex Multiple Access With Cooperating Transmitters
March 7, 2012, 12:00am PST
The authors derive the optimal power allocation of a practical half-duplex scheme for the Multiple Access Channel with Transmitter Co-operation (MAC-TC). The system consists of two users in...
Provided by McGill University
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White Papers
On the Importance of Local Connectivity for Internet Topology Models
May 4, 2009, 12:00am PDT
Existing models for Internet Autonomous System (AS) topology generation make structural assumptions about the AS graph. Those assumptions typically stem from beliefs about the true properties of...
Provided by McGill University
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White Papers
Higher-Order Dynamic Pattern Unification for Dependent Types and Records
April 5, 2011, 12:00am PDT
Higher-order unification is a key operation in logical frameworks, dependently-typed programming systems, or proof assistants supporting higher-order logic. It plays a central role in type...
Provided by McGill University
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White Papers
Beluga: A Framework for Programming and Reasoning With Deductive Systems
March 31, 2010, 12:00am PDT
Beluga is an environment for programming and reasoning about formal systems given by axioms and inference rules. It implements the logical framework LF for specifying and prototyping formal...
Provided by McGill University
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White Papers
Programming Inductive Proofs: A New Approach Based on Contextual Types
September 14, 2010, 12:00am PDT
In this paper, the authors present an overview to programming with proofs in the reasoning framework, Beluga. Beluga supports the specification of formal systems given by axioms and inference...
Provided by McGill University
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White Papers
Proof Pearl: The Power of Higher-Order Encodings in the Logical Framework LF
January 1, 2012, 12:00am PST
In this proof pearl, the authors demonstrate the power of higher-order encodings in the logical framework Twelf[PS99] by investigating proofs about an algorithmic specification of bounded subtype...
Provided by McGill University
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White Papers
Beluga: Programming With Dependent Types, Contextual Data, and Contexts
January 24, 2010, 12:00am PST
The logical framework LF provides an elegant foundation for specifying formal systems and proofs and it is used successfully in a wide range of applications such as certifying code and mechanizing...
Provided by McGill University
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White Papers
Bidirectional Decision Procedures for the Intuitionistic Propositional Modal Logic IS4
February 25, 2007, 12:00am PST
The authors present a multi-context sequent calculus whose derivations are in bijective correspondence with normal natural deductions in the propositional fragment of the intuitionistic modal...
Provided by McGill University
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White Papers
Case Analysis of Higher-Order Data
February 22, 2008, 12:00am PST
The authors discuss coverage checking for data that is dependently typed and is defined using higher-order abstract syntax. Unlike previous work on coverage checking that required objects to be...
Provided by McGill University
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White Papers
Functional Programming With Dependently-Typed Higher-Order Data
February 19, 2008, 12:00am PST
This paper explores a new point in the design space of functional programming: functional programming with dependently typed higher-order data structures described in the logical framework LF....
Provided by McGill University
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White Papers
Rates of Convergence for Greedy Gossip With Eavesdropping
September 30, 2008, 12:00am PDT
Greedy Gossip with Eavesdropping (GGE) is a randomized gossip algorithm that exploits the broadcast nature of wireless communications to converge rapidly on grid-like network topologies without...
Provided by McGill University
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White Papers
The Speed of Greed: Characterizing Myopic Gossip Through Network Voracity
September 29, 2008, 12:00am PDT
This paper analyzes the rate of convergence of Greedy Gossip with Eavesdropping (GGE). In previous work, the authors proposed GGE, a fast gossip algorithm based on exploiting the broadcast nature...
Provided by McGill University
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White Papers
Multi-Hop Greedy Gossip With Eavesdropping
May 25, 2009, 12:00am PDT
Greedy Gossip with Eavesdropping (GGE) is a randomized gossip algorithm that computes the average consensus by exploiting the broadcast nature of wireless communications. Each node eavesdrops on...
Provided by McGill University
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White Papers
Compressed RF Tomography for Wireless Sensor Networks: Centralized and Decentralized Approaches
April 3, 2009, 12:00am PDT
Radio Frequency (RF) tomography refers to the process of inferring information about an environment by capturing and analyzing RF signals transmitted between nodes in a wireless sensor network. In...
Provided by McGill University
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White Papers
Fast Decentralized Averaging Via Multi-Scale Gossip
April 26, 2010, 12:00am PDT
Applications in sensor networks often demand that nodes cooperatively accomplish a task without centralized coordination. Autonomy is often equated with robustness and scalability in large-scale...
Provided by McGill University
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White Papers
Graph Spectral Compressed Sensing for Sensor Networks
September 27, 2011, 12:00am PDT
For many Wireless Sensor Network (WSN) applications, the signals measured are likely to be correlated either spatially or temporally; i.e., the authors can find an appropriate transform domain...
Provided by McGill University
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White Papers
Approximating Signals Supported on Graphs
September 27, 2011, 12:00am PDT
In this paper, the authors investigate the notion of smoothness for signals supported on the vertices of a graph. They provide theoretical explanations when and why the Laplacian eigenbasis can be...
Provided by McGill University
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White Papers
Local Silencing Rules for Randomized Gossip
February 11, 2011, 12:00am PST
Randomized gossip algorithms are attractive for collaborative in-network processing and aggregation because they are fully asynchronous, they require no overhead to establish and form routes, and...
Provided by McGill University
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White Papers
Distributed Consensus and Optimization Under Communication Delays
August 8, 2011, 12:00am PDT
The authors study the effects of communication delays in distributed consensus and optimization algorithms. They propose two ways to model delays. First, assuming each edge of a communication...
Provided by McGill University
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White Papers
Distributed Dual Averaging for Convex Optimization Under Communication Delays
October 4, 2011, 12:00am PDT
In this paper, the authors extend and analyze the distributed dual averaging algorithm. They employ the fixed delay model introduced in and show that distributed dual averaging still converges in...
Provided by McGill University
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White Papers
An Empirical Study of the Concept Assignment Problem
June 1, 2007, 12:00am PDT
Concept assignment involves identifying the parts of the source code associated with the implementation of a high-level concept, such as a functional requirement. Although concept assignment is at...
Provided by McGill University
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White Papers
Tracking Code Clones in Evolving Software
January 30, 2007, 12:00am PST
Code clones are generally considered harmful in software development, and the predominant approach is to try to eliminate them through refactoring. However, recent research has provided evidence...
Provided by McGill University
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White Papers
Retrieving Task-Related Clusters From Change History
July 29, 2008, 12:00am PDT
During software maintenance tasks, developers often spend an important amount of effort investigating source code. This effort can be reduced if tools are available to help developers navigate the...
Provided by McGill University
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White Papers
Detecting Inefficient API Usage
February 10, 2009, 12:00am PST
Large software projects often rely on third-party libraries, made accessible through Application Programming Interfaces (APIs). The authors have observed many cases where APIs are used in ways...
Provided by McGill University
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White Papers
A Detailed Examination of the Correlation Between Imports and Failure-Proneness of Software Components
October 3, 2009, 12:00am PDT
Research has provided evidence that type usage in source files is correlated with the risk of failure of software components. Previous studies that investigated the correlation between type usage...
Provided by McGill University
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White Papers
Improving API Usage Through Automatic Detection of Redundant Code
September 1, 2009, 12:00am PDT
Software projects often rely on third-party libraries made accessible through Application Programming Interfaces (APIs). The authors have observed many cases where APIs are used in ways that are...
Provided by McGill University
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White Papers
The Influence of the Task on Programmer Behaviour
March 31, 2011, 12:00am PDT
Programmers performing a change task must understand the existing software in addition to performing the actual change. This process is likely to be affected by characteristics of the task. The...
Provided by McGill University
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White Papers
Analyzing Temporal API Usage Patterns
January 1, 2012, 12:00am PST
Software reuse through Application Programming Interfaces (APIs) is an integral part of software development. As developers write client programs, their understanding and usage of APIs change over...
Provided by McGill University
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White Papers
Using Structure-Based Recommendations to Facilitate Discoverability in APIs
April 17, 2011, 12:00am PDT
Empirical evidence indicates that developers face significant hurdles when the API elements necessary to implement a task are not accessible from the types they are working with. The authors...
Provided by McGill University
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White Papers
Temporal Analysis of API Usage Concepts
January 1, 2012, 12:00am PST
Software reuse through Application Programming Interfaces (APIs) is an integral part of software development. The functionality offered by an API is not always accessed uniformly throughout the...
Provided by McGill University
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White Papers
Asking and Answering Questions About Unfamiliar APIs: An Exploratory Study
April 6, 2012, 12:00am PDT
The increasing size of APIs and the increase in the number of APIs available imply developers must frequently learn how to use unfamiliar APIs. To identify the types of questions developers want...
Provided by McGill University
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White Papers
Recovering Traceability Links Between an API and Its Learning Resources
March 28, 2012, 12:00am PDT
Large frameworks and libraries require extensive developer learning resources, such as documentation and mailing lists, to be useful. Maintaining these learning resources is challenging partly...
Provided by McGill University
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White Papers
Maximum Profit Vs Minimum Cost in Service Overlay Network Design
April 26, 2009, 12:00am PDT
The authors studied a class of Service Overlay Network (SON) capacity allocation problem with Grade of Service (GoS) constraints. The problem can be formulated as either a Maximum Profit (MP)...
Provided by McGill University
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White Papers
Network Capacity Allocation in Service Overlay Networks
March 5, 2007, 12:00am PST
The authors study the capacity allocation problem in Service Overlay Networks (SON)s with state-dependent connection routing based on revenue maximization. They formulate the dimensioning problem...
Provided by McGill University
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White Papers
The Pricing of the Grade of Service Guarantees in the Service Overlay Networks
May 22, 2009, 12:00am PDT
The authors studied a class of Service Overlay Network (SON) capacity allocation problem. By analyzing the problem with two different nonlinear optimization formulations, they show that the prices...
Provided by McGill University
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White Papers
Service Overlay Network Design With Reliability Constraints
August 14, 2009, 12:00am PDT
The authors studied a class of Service Overlay Network (SON) design problem with reliability constraints. It is assumed that a SON network could enter an inadmissible status for two reasons; first...
Provided by McGill University
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White Papers
Compressed Network Monitoring
June 29, 2007, 12:00am PDT
This paper describes a procedure for estimating a full set of network path metrics, such as loss or delay, from a limited number of measurements. The approach exploits the strong spatial and...
Provided by McGill University
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White Papers
Time-Slotted Scheduling for Agile All-Photonics Networks: Performance and Complexity
February 25, 2008, 12:00am PST
Schedulers in optical switches are still electronic, the performance of these units has a significant impact on the performance of the network and could form a bottleneck in high speed networks,...
Provided by McGill University
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White Papers
Accelerated Distributed Average Consensus Via Localized Node State Prediction
September 30, 2008, 12:00am PDT
This paper proposes an approach to accelerate local, linear iterative network algorithms asymptotically achieving distributed average consensus. The authors focus on the class of algorithms in...
Provided by McGill University
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