approximation in audio and video
A Scientific Data Mining Approach to Midwater Multibeam Echosounding for Fisheries Applications
White Paper A model inversion technique is utilized, by applying the inverse of an approximation to the multibeam echosounding model. Midwater acoustic backscatter measurements collected by multibeam sonar offer new opportunities... [01 Oct 2008]
Blocking Probabilities of Optical Burst Switching Networks Based on Reduced Load Fixed Point Approximations
White Paper In particular, a new reduced load fixed point approximation model to evaluate blocking probabilities in OBS networks is introduced. This paper provides a framework for analysis and performance evaluation of Optical Burst... [11 Sep 2008]
Passive Optical Network Layout in Manhattan
White Paper The paper proposes an algorithm, which guarantees a solution of 3 - approximation to the optimal deployment, and further argues that this is the best lower bound achievable in one's case. This paper discusses the Passive... [11 Sep 2008]
Traffic Analysis and Network Bandwidth Provisioning Tools for Academic Information Networks
White Paper The tools provide an estimation of tail probability based on an approximation using Fractional Brownian Motion (FBM) tail probability, and the tools also enable calculation of the average queuing buffer waiting time... [10 Sep 2008]
Dimensioning of Wireless Mesh Networks With Flow-Level QoS Requirements
White Paper Furthermore, three approximation schemes are presented to facilitate the computations. This paper studies dimensioning of wireless mesh networks with elastic traffic subject to flow-level performance constraints. [04 Aug 2008]
Replicated Server Placement With QoS Constraints
White Paper A pseudopolynomial and a polynomial algorithm that provide guaranteed approximation factors with respect to the optimal for the problem at hand are presented. The problem of placing replicated servers with QoS... [04 Aug 2008]
Very Fast Optimal Bandwidth Selection for Univariate Kernel Density Estimation
White Paper This paper proposes a computationally efficient å - exact approximation algorithm for the univariate Gaussian kernel based density derivative estimation that reduces the computational complexity from O(MN) to linear O(N... [11 Jul 2008]
An Iterative Approach to Optimal Non-Uniform Sampling and Instantaneous Bandwidth Estimation
White Paper The estimation is iterative, and can be used with most available techniques of localized bandwidth approximation. A new approach to the representation and reconstruction of non-bandlimited signals using non-uniform... [11 Jul 2008]
Load Balancing by MPLS in Differentiated Services Networks
White Paper The first approximation defines the paths using the LP-optimization and after that allocates traffic using the NLP-optimization. The second approximation divides traffic into parts and routes them... [10 Jul 2008]
Evaluation of Three CAC Methods: Gaussian Approximation Method, Method of Effective Bandwidth and Diffusion Approximation Method
White Paper In this paper the intensive and weak properties of three CAC methods are presented: Gaussian, effective bandwidth and diffusion approximation method. The greatly variable requirements of different applications,... [08 Jul 2008]
A Closed Form Formula for Long-Lived TCP Connections Throughput
White Paper For the particular case that each TCP connection experiences the same Round Trip Time (RTT) and under the many user approximation it proves that this TDF is given by a closed-form formula that solely depends on the... [03 Jul 2008]
Low Cost Residual Phase Tracking Algorithm for OFDM-Based WLAN Systems
White Paper It proposes a novel algorithm that uses an approximation instead of implementing the complex and vulnerable angle functions. This paper presents the design of an efficient low complexity orthogonal frequency division... [03 Jul 2008]
On Dependency Changes in Collaborative Software Development
White Paper Dependency changes are one measure of the level of interdependency in a software module, therefore a good approximation to the study of dependency management in software development. This paper investigates the phenomena... [01 May 2008]
A Regression-Based Analytic Model for Dynamic Resource Provisioning of Multi-Tier Applications
White Paper The work discusses in this paper applies a regression-based approximation of the CPU demand of client transactions on a given hardware. The multi-tier implementation has become the industry standard for developing... [15 Feb 2008]
Modeling TCP and High Speed TCP: A Nonlinear Extension to AIMD Mechanisms
White Paper The paper relates the approaches and show that the second one is an averaged approximation of the first one. This paper proposes two modeling approaches of AIMD congestion control mechanisms. The first separates the... [15 Jan 2008]
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