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TechRepublic Resources
- Try, Try Again: Replication-Based Variance Estimation Methods for Survey Data Analysis in SAS 9.2
- Complex survey samples are constructed with selection schemes that affect the usual random assumptions, so SAS/STAT software provides specialized procedures to analyze them: SURVEYMEANS, SURVEYFREQ, SURVEYREG, and SURVEYLOGISTIC for means, frequencies, regression, and logistic analysis, respectively. These procedures all use the Taylor series expansion method for variance estimation, which is...
- Tags: SAS Institute, Survey, Replication, Variance Estimation, Complex Survey Sample, Marketing Research, Marketing
- White papers 2008-03-13
Additional Resources
- Pilot-Aided Channel Estimation for Systems With Virtual Carriers
- This paper investigates various frequency-domain channel estimators for Orthogonal Frequency Division Multiplexing OFDM systems with Virtual Carriers VCs. As conventional estimators cannot estimate the Channel Transfer Function CTF at VCs, DFT-based estimators are not directly applicable in OFDM systems with VCs. To circumvent this, the authors present Least Squares LS,...
- Tags: Singapore, Carrier, OFDM, Wireless
- White papers 2005-09-25
- Estimation Risk, Market Efficiency, and the Predictability of Returns
- n asset pricing, estimation risk refers to investor uncertainty about the parameters of the return or cashflow process. We show that with estimation risk the observable properties of prices and returns can differ significantly from the properties perceived by rational investors. In particular, parameter uncertainty will tend to induce return...
- Tags: Asset management, estimation, National Bureau of Economic Research, predictability, investor, asset pricing, volatility, dividend, asset
- White papers 2000-05-01
- Project Estimation
- The CS/10,000 project estimation tool suite allows you to generate, manage, and validate estimates of effort for a wide variety of projects. The estimation method uses proprietary AI technology to provide both task and effort based estimation for your project.
- Tags: Estimation, Client-server, Tool, Productivity, Servers, Hardware
- White papers
- More than You Ever Wanted to Know about Volatility Swaps (But Less than Can Be Said)
- In this report we explain the properties and the theory of both variance and volatility swaps, first from an intuitive point of view and then more rigorously. The theory of variance swaps is more straightforward. We show how a variance swap can be theoretically replicated by a hedged...
- Tags: Swap, Volatility, Variance Swap, Investment, Finance
- White papers
- Phase Wise Cost Analysis of a Project
- The cost component is vital to the success of any software project. Most of the failure projects attribute themselves to incorrect cost estimates and budget allocations. Many software projects fail not because there is no market, but because the cost of creating the software far outstrips any profit. Exponential costs...
- Tags: khan.ovais@..., software, variance
- Discussion threads 2007-04-30
- Use Case Based Estimation
- For the average develop manager who often do not have the time and resources to do a proper function point count or other estimation this paper offers a basic estimation method using a use case based approach. This idiot's guide to the idiot's guide of estimation is a quick approach...
- Tags: Estimation, Use Case, Software Development, Software/Web Development
- White papers
- A Preliminary Checklist for Software Cost Management
- This paper presents a process framework and a preliminary checklist for software cost management. While most textbooks and research papers on cost estimation look mainly at the "Estimation" phase, this framework and checklist includes the phases relevant to estimation: "Preparation", "Estimation", "Application", and "Learning". The authors believe that cost estimation...
- Tags: Software, Estimation, Checklist, Managerial Accounting, Tools & Techniques, Finance, Management
- White papers 2003-06-30
- Estimation of Carrier-Frequency Offset and Frequency-Selective Channels in MIMO OFDM Systems Using a Common Training Signal
- This paper presents a common training signal design and corresponding estimation methods for carrier frequency offset and frequency-selective channels in MIMO OFDM systems. In designing the common training signal, a training signal structure which yields low complexity estimation methods is developed while the optimality of the training signal is maintained....
- Tags: Estimation, Training, MIMO-OFDM, Estimation Method, Workforce Management, Human Resources
- White papers 2004-09-13
- Improving Channel Estimation in OFDM Systems for Sparse Multipath Channels
- This paper describes an algorithm for sparse channel estimation applicable to orthogonal frequency division multiplexing systems. The proposed algorithm uses a least squares LS technique for channel estimation and a generalized Akaike information criterion to estimate the channel length and tap positions. This effectively reduces the signal space of the...
- Tags: Algorithm, Indian Institute Of Technology, Channel Estimation, OFDM, Engineering, Wireless
- White papers 2005-01-01
- Conduct Variance Analysis
- A person spends hours performing a variance analysis each month after he closes the books. This webcast shows how to perform this task more efficiently by using Microsoft Office Excel 2003, which will help one to spot trends, issues, or opportunities that could affect the company's economic success.
- Tags: Microsoft Corp., Person, Analysis
- Webcasts
- Project Estimation: Use Case Point Technique
- Estimates give an indicator of how long and how much effort is required to complete a project. There are many estimation methods available based upon expert opinion (e.g. Wideband delphi), estimation by analogy - similar projects and also parameterised techniques use case point. This paper presents a brief overview of...
- Tags: Technique, Use Case, Productivity
- White papers
- Bandwidth Estimation: Metrics, Measurement Techniques, and Tools
- In a packet network, the terms "Bandwidth" or "Throughput" often characterize the amount of data that the network can transfer per unit of time. Bandwidth estimation is of interest to users wishing to optimize end-to-end transport performance, overlay network routing, and peer-to-peer file distribution. Techniques for accurate bandwidth estimation are...
- Tags: Technique, Georgia Institute Of Technology, Tool, Bandwidth Estimation, Productivity
- White papers 2008-01-01
- Generalized 8-PSK for Totally Blind Channel Estimation in OFDM
- Channel estimation in OFDM systems can conveniently be done by inserting a stream of pilot symbols at the transmitter and by using FIR interpolation filters at the receiver. Most blind channel estimation approaches are based on higher order statistics and converge slowly, making them unsuitable for mobile environments. Moreover, the...
- Tags: Channel Estimation, OFDM, Wireless
- White papers
- SSUPal (exe)
- Chemuturi Consultants offers you a free software estimation tool SSUPal that makes use of Software Size Units SSU. SSU is free from the known drawbacks like complexity and does not specialized training to master the technique. SSUPal is a software tool that assists in Function Point Analysis and FP counting....
- Tags: Software, Consultant, SSUPal, Software Size Units, Tools & Techniques, Management
- Software downloads 2008-03-18
- Software Estimation: Art, Science, or Science Fiction
- This paper focuses on providing useful rules of thumb and procedures for creating software estimates ("the art of estimation") and a brief introduction to mathematical approaches to creating software project estimates ("the science of estimation"). The paper provides techniques for making sure estimation is treated as an analytical rather than...
- Tags: Software, Estimation, Tools & Techniques, Management
- White papers 2004-09-11
- Fast End-to-End Available Bandwidth Estimation for Real-Time Multimedia Networking
- Dynamic bandwidth estimation serves as an important basis for performance optimization of real-time distributed multimedia applications. The objective of this paper is to develop a bandwidth estimation algorithm for the fast fluctuated Internet. This paper analyzes the relationship between the one way delay and the dispersion of packets train, and...
- Tags: Multimedia, National Chiao Tung University, Bandwidth Estimation, Engineering
- White papers 2006-07-07
- Service-Oriented Grid Computation for Large-Scale Parameter Estimation in Complex Environmental Modeling
- Complex environmental modeling often involves a large number of unknown physical and ecological parameters. Parameter estimation is one of the most difficult steps in many modeling activities. In this paper, the authors present a service-oriented framework, named GGPE-G (Grid-enabled Global optimization for General Parameter Estimation), for efficient parameter estimation in...
- Tags: Estimation, Association For Computing Machinery, Modeling, Parameter Estimation, Research & Development, Business Operations
- White papers 2006-04-27
- Inline Path Characteristic Estimation to Improve TCP Performance in High Bandwidth-Delay Networks
- This paper presents a measurement study of TCPW BBE Bandwidth and Buffer Estimations and associated path characteristics estimation techniques over large pipes. This study addresses the accuracy of this inline estimation methods used in TCPW BBE. Buffer size, capacity, and achieved rate estimation are used in TCPW BBE. It sheds...
- Tags: Estimation, Bandwidth, TCP, University Of California, Tcp/Ip, Productivity, Networking
- White papers 2005-01-19
- Optimal Superimposed Pilot Selection for OFDM Channel Estimation
- This paper presents an optimal strategy for utilizing superimposed pilots for OFDM channel estimation using Wiener filtering. An algorithm is formulated to determine the optimal rectangular set of time-frequency samples for channel estimation for a given complexity. The proposed scheme shows an improved performance at high Doppler frequencies. Moreover, the...
- Tags: Algorithm, Performance, Channel Estimation, OFDM, Performance Management, Productivity, Wireless, Human Resources, Workforce Management
- White papers 2006-04-19
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