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Operations Research, Systems Engineering and Industrial Engineering Commons

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SelectedWorks

2008

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Articles 1 - 10 of 10

Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

Leading Firms As Knowledge Gatekeepers In A Networked Environment, Deogratias Harorimana Mr Nov 2008

Leading Firms As Knowledge Gatekeepers In A Networked Environment, Deogratias Harorimana Mr

Dr Deogratias Harorimana

This chapter introduces the role of the knowledge gatekeeper as a mechanism by which knowledge is created and transferred in a networked environment. Knowledge creation and transfer are essential for building a knowledge based economy. The chapter considers obstacles that inhibit this process and argues that leading firms create a shared socio-cultural context that enables the condivision of tacit meanings and codification of knowledge. Leading firms act as gatekeepers of knowledge through the creation of shared virtual platforms. There will be a leading firm that connects several networks of clients and suppliers may not interact directly with one another, but …


The Dependence Of Measured Modulation Error Ratio On Phase Noise, Ron D. Katznelson Aug 2008

The Dependence Of Measured Modulation Error Ratio On Phase Noise, Ron D. Katznelson

Ron D. Katznelson

This paper reviews the algorithms used by Vector Signal Analyzers to measure Modulation Error Ratio (MER) and derives the explicit functional dependence of measured MER on phase noise of digital transmitters. The modulation error model is introduced and the analytical expression for key estimated parameters required to obtain MER measure are derived. The essential elements of algorithms employed by MER measurement instruments to estimate amplitude scale, frequency offset, and initial phase intercept and the resulting MER are identified. The frequency response of the effective phase-noise rejection filtering action associated with a given measurement epoch is derived. It is shown that …


Lexicographic Goal Programming Approach For Portfolio Optimization, Mehdi Jafarian, Azizolah Jafari Jan 2008

Lexicographic Goal Programming Approach For Portfolio Optimization, Mehdi Jafarian, Azizolah Jafari

Mehdi Jafarian

The mean variance model of portfolio optimization that was introduced by Markowitz includes two conflicted objective functions. These two criteria, risk and return does not encompass all of the information about investment. Information like liquidity, annual dividends and performance in later years. Thus portfolio selection is a usual multi-objective decision making (MODM) problem. This paper will investigate the optimum portfolio for a private investor, taking into account 6 criteria. It is well known that GP, based on preemptive priorities and target values, has been successful in solving MODM problems. In this paper we classify the MODM model with consideration of …


Towards A Business Model For Cellular Network And Telecommunication Operators: A Theoretical Framework, Mutaz M. Al-Debei, Ramzi El-Haddadeh, David Avison Jan 2008

Towards A Business Model For Cellular Network And Telecommunication Operators: A Theoretical Framework, Mutaz M. Al-Debei, Ramzi El-Haddadeh, David Avison

Dr. Mutaz M. Al-Debei

Cellular networks and telecommunications bring major change to the way businesses are conducted. Mobility has become one of the main priorities for users and this has impacted on cellular networks and telecommunication operators (CNTOs). However, entrants into the cellular industry have been confounded primarily by inexistent or weak Business Models (BMs). Designing a BM for a CNTO is complex and requires multiple actors to balance different and often conflicting design requirements. Nevertheless, most research about CNTOs has been technically oriented and has mainly addressed the technological and engineering issues related to their infrastructure. Less attention has been given to the …


Defining The Business Model In The New World Of Digital Business, Mutaz M. Al-Debei, Ramzi El-Haddadeh, David Avison Jan 2008

Defining The Business Model In The New World Of Digital Business, Mutaz M. Al-Debei, Ramzi El-Haddadeh, David Avison

Dr. Mutaz M. Al-Debei

Recent rapid advances in ICTs, specifically in Internet and mobile technologies, have highlighted the rising importance of the Business Model (BM) in Information Systems (IS). Despite agreement on its importance to an organization’s success, the concept is still fuzzy and vague, and there is no consensus regarding its definition. Furthermore, understanding the BM domain by identifying its meaning, fundamental pillars, and its relevance to other business concepts is by no means complete. In this paper we aim to provide further clarification by first presenting a classification of definitions found in the IS literature; second, proposing guidelines on which to develop …


On The Decision To Take A Pitch, J. Eric Bickel Jan 2008

On The Decision To Take A Pitch, J. Eric Bickel

Eric Bickel

Baseball is a highly strategic game, with decisions being made almost continuously. In this paper, we analyze the decision to have the batter take a pitch, which means that he does not swing at the pitch under any circumstances—even if it is easily hittable. Why would a batter do this? Using decision-theoretic reasoning, we determine under what circumstances such a decision is good. We find that in some cases, taking pitches deterministically dominates not taking.


Verification Of The Weather Channel Probability Of Precipitation Forecasts, Eric Bickel, Seong Kim Jan 2008

Verification Of The Weather Channel Probability Of Precipitation Forecasts, Eric Bickel, Seong Kim

Eric Bickel

The Weather Channel (TWC) is a leading provider of weather information to the general public. In this paper the reliability of their probability of precipitation (PoP) forecasts over a 14-month period at 42 locations across the United States is verified. It is found that PoPs between 0.4 and 0.9 are well calibrated for near-term forecasts. However, overall TWC PoPs are biased toward precipitation, significantly so during the warm season (April–September). PoPs lower than 0.3 and above 0.9 are not well calibrated, a fact that can be explained by TWC’s forecasting procedure. In addition, PoPs beyond a 6-day lead time are …


The Relationship Between Perfect And Imperfect Information In A Risk-Sensitive Two-Action Problem, Eric Bickel Jan 2008

The Relationship Between Perfect And Imperfect Information In A Risk-Sensitive Two-Action Problem, Eric Bickel

Eric Bickel

No abstract provided.


Quantifying 3d Land Seismic Reliability And Value, J. Eric Bickel, Richard L. Gibson, Duane A. Mcvay, Stephen Pickering, John Waggoner Jan 2008

Quantifying 3d Land Seismic Reliability And Value, J. Eric Bickel, Richard L. Gibson, Duane A. Mcvay, Stephen Pickering, John Waggoner

Eric Bickel

Seismic data provide essential information for guiding reservoir development. Improvements in data quality hold the promise of improving performance even further, provided that the value of these data exceed their cost. Previous work has demonstrated value-of-information (VoI) methods to quantify the value of seismic data. In these examples, seismic accuracy was obtained via expert assessment instead of being based on geophysical quantities. The modeled seismic information was not representative of any quantity that would be observed in a seismic image. Here we apply a more general VoI model that includes multiple targets, budgetary constraints, and quantitative models relating post-stack seismic …


Modeling Dependence Among Geologic Risks In Sequential Exploration Decisions, J. Eric Bickel, James E. Smith Jan 2008

Modeling Dependence Among Geologic Risks In Sequential Exploration Decisions, J. Eric Bickel, James E. Smith

Eric Bickel

Prospects in a common basin are likely to share geologic features. For example, if hydrocarbons are found at one location, they may be more likely to be found at other nearby locations. When making drilling decisions, we should be able to exploit this dependence and use drilling results from one location to make more informed decisions about other nearby prospects. Moreover, we should consider these informational synergies when evaluating multi-prospect exploration opportunities. In this paper, we describe an approach for modeling the dependence among prospects and determining an optimal drilling strategy that takes this information into account. We demonstrate this …