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Articles 1 - 20 of 20

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

Backhaul Profit Maximization Problem Instances, Yuanyuan Dong, Yulan Bai, Eli V. Olinick, Andrew Junfang Yu Aug 2019

Backhaul Profit Maximization Problem Instances, Yuanyuan Dong, Yulan Bai, Eli V. Olinick, Andrew Junfang Yu

Engineering Management, Information, and Systems Research

This archive contains data for the problem instances described in the technical report "An Empirical Study of Mixed Integer Programming Formulations of the Backhaul Profit Maximization Problem" by Yulan Bai and Eli V. Olinick.


Impacts Of Freight Consolidation And Truck Sharing On Freight Mobility, Tieming Liu, Chaoyue Zhao Apr 2019

Impacts Of Freight Consolidation And Truck Sharing On Freight Mobility, Tieming Liu, Chaoyue Zhao

Data

Corresponding data set for Tran-SET Project No. 17ITSOKS02. Abstract of the final report is stated below for reference:

"The trucking industry is an important sector of the U.S. economy. However, it is quite fragmented, hindering the efficiency of cargo transportation and the ability for small carriers to identify demands to fill full truck loads. The focus of this research is to study models and algorithms in order to aid online freight marketplaces to identify efficient consolidation strategies. To accomplish this aim, a new mixed integer programming model for the pickup and delivery problem has been developed. The model is ...


A Finite Capacity Dynamic Priority Queueing Model With Phase Type Services, Srinivas R. Chakravarthy Oct 2018

A Finite Capacity Dynamic Priority Queueing Model With Phase Type Services, Srinivas R. Chakravarthy

Srinivas Chakravarthy

No abstract provided.


Bringing Together Man And Machine, Steven Corns May 2018

Bringing Together Man And Machine, Steven Corns

Steven Corns

No abstract provided.


A Finite Capacity Dynamic Priority Queueing Model, Srinivas R. Chakravarthy May 2018

A Finite Capacity Dynamic Priority Queueing Model, Srinivas R. Chakravarthy

Srinivas Chakravarthy

A single server queueing model with two types of arrivals is discussed under the assumptions of Poisson arrivals, (possibly different) general services and finite waiting room for each type of customer. Under a dynamic non-preemptive priority service rule, the steady state analysis of the model is performed. A number of interesting and intuitive results are obtained. In the case when the services are of phase type, implementable algorithms are developed for computing various system performance measures. The recursive computational schemes can be used interactively in the design of such queuing systems. A number of numerical examples are discussed.


The Speed Limits Change? Evaluating The Effectiveness Of The I-270 Variable Speed Limit System, Suzanna Long Mar 2018

The Speed Limits Change? Evaluating The Effectiveness Of The I-270 Variable Speed Limit System, Suzanna Long

Suzanna Long

No abstract provided.


The Rules: The Written & The Unwritten, Suzanna Long Mar 2018

The Rules: The Written & The Unwritten, Suzanna Long

Suzanna Long

No abstract provided.


The Rules: The Written & The Unwritten, Suzanna Long Mar 2018

The Rules: The Written & The Unwritten, Suzanna Long

Suzanna Long

No abstract provided.


The Rules: The Written & The Unwritten, Suzanna Long Mar 2018

The Rules: The Written & The Unwritten, Suzanna Long

Suzanna Long

No abstract provided.


Instances For "The Restaurant Meal Delivery Problem: Dynamic Pick-Up And Delivery With Deadlines And Random Ready Times", Marlin Ulmer, Barrett W. Thomas, Ann M. Campbell, Nicholas Woyak Oct 2017

Instances For "The Restaurant Meal Delivery Problem: Dynamic Pick-Up And Delivery With Deadlines And Random Ready Times", Marlin Ulmer, Barrett W. Thomas, Ann M. Campbell, Nicholas Woyak

Tippie College of Business Publications

No abstract provided.


Robostock: Autonomous Inventory Tracking, Drew Christian Balthazor Dec 2016

Robostock: Autonomous Inventory Tracking, Drew Christian Balthazor

Computer Engineering

No abstract provided.


How To Conduct A Novel Graduate Research, Yinfa Ma Aug 2016

How To Conduct A Novel Graduate Research, Yinfa Ma

Yinfa Ma

No abstract provided.


Instances For "Sugarcane Harvest Logistics In Brazil", Kamal Lamsal, Philip C. Jones, Barrett W. Thomas Jul 2016

Instances For "Sugarcane Harvest Logistics In Brazil", Kamal Lamsal, Philip C. Jones, Barrett W. Thomas

Tippie College of Business Publications

Posted are the mill area geographies and the Python code for transforming the geographies into individual instances. The geographies and code allow one to recreate the instances used in the paper "Sugarcane Harvest Logistics in Brazil" published in Transportation Science Vol. 51, No. 2, May 2017, pp. 771–789. https://doi.org/10.1287/trsc.2015.0650.


Creation And Implementation Of An Underwater-Capable Vr Headset Through The Use Of Additive Manufacturing, Matthew D. Meyers, Nathan Sonnenfeld Apr 2016

Creation And Implementation Of An Underwater-Capable Vr Headset Through The Use Of Additive Manufacturing, Matthew D. Meyers, Nathan Sonnenfeld

Human Factors and Applied Psychology Student Conference

No abstract provided.


Instances For "Integer Programming Techniques For Workforce Assignment Models That Recognize Human Learning", Huan Jin, Barrett W. Thomas, Mike Hewitt Oct 2015

Instances For "Integer Programming Techniques For Workforce Assignment Models That Recognize Human Learning", Huan Jin, Barrett W. Thomas, Mike Hewitt

Tippie College of Business Publications

These datasets were used for the computational experiments associated with the paper "Integer programming techniques for makespan minimizing workforce assignment models that recognize human learning." Publications details for the paper are available from https://doi.org/10.1016/j.cie.2016.03.027 and http://myweb.uiowa.edu/bthoa/iowa/Research.html.


Instances For The Same-Day Delivery Problem For Online Purchases, Stacy A. Voccia, Ann M. Campbell, Barrett W. Thomas Oct 2015

Instances For The Same-Day Delivery Problem For Online Purchases, Stacy A. Voccia, Ann M. Campbell, Barrett W. Thomas

Tippie College of Business Publications

The available file contains the instances used in the computational experiments in "The Same-Day Delivery Problem for Online Purchases" by Stacy A. Voccia, Ann M. Campbell, and Barrett W. Thomas (see https://doi.org/10.1287/trsc.2016.0732 and http://myweb.uiowa.edu/bthoa/iowa/Research.html for the paper). The compressed file contains a file "Description.txt" that describes the individual instances. Note that the paper presents results for only 25 of the instances from each category. To facilitate future research, additional instances are included in the posted data set.


Managing The Economic Constraints Of Foundries And Fabless Enterprises, Charles M. Weber, Jiting Yang May 2015

Managing The Economic Constraints Of Foundries And Fabless Enterprises, Charles M. Weber, Jiting Yang

Engineering and Technology Management Faculty Publications and Presentations

This paper presents an empirically grounded model, which links organizational learning to pattern-specific fixed costs. The approach described in this paper helps fab managers make fundamental strategic decisions concerning product design and product mix by engaging in scenario planning. Four critical aspects of managing pattern-specific fixed cost are analyzed in detail – sensitivity to time, design cost and production volume; platform designs; process postponement solutions; and design penalties. The model suggests that fabless enterprises and foundries must collaborate extensively on the design and realizations of product platforms for state-of-the-art integrated circuit products to remain economically viable.


Instances For Sugarcane Harvest Logistics In Louisiana, Kamal Lamsal, Philip C. Jones, Barrett W. Thomas Oct 2014

Instances For Sugarcane Harvest Logistics In Louisiana, Kamal Lamsal, Philip C. Jones, Barrett W. Thomas

Tippie College of Business Publications

This zip file contains the 11 instances used in the paper “Continuous time scheduling for sugarcane harvest logistics in Louisiana.” (https://doi.org/10.1080/00207543.2015.1052156) You can find the publication details for that paper at http://myweb.uiowa.edu/bthoa/iowa/Research.html. The paper contains all of the details regarding the construction of the sets.

In summary, there are 11 mills and approximately 475 farms in Louisiana. The National Agricultural Statistics Service (http://quickstats.nass.usda.gov/results/87A51B62-DE8D-322D-8C98-88FEF17FBB6F) provide zip-code level addresses for 456 farms, and The American Sugar League (http://www.amscl.org/factories ...


Renewable Energy And Smart Grid Integration Through Advanced Power Electronics, Dr. Adel A. Elbaset Apr 2014

Renewable Energy And Smart Grid Integration Through Advanced Power Electronics, Dr. Adel A. Elbaset

Dr. Adel A. Elbaset

As electricity demands are increasing day by day causing unbalance in the present grid system which results in various causes like load shedding, unbalance voltage and power quality etc which ultimately affects the consumers. Now to avoid all such situations the only option is to meet the demand by increasing generation but, we are also lagging with the conventional sources so generating more power is also not convenient by conventional ways. Therefore, recent researches are interested in renewable energy system integrated with smart grid through advanced power electronic converters. Smart gird with renewable energy sources have been regarded as the ...


Delayed Observation Planning In Partially Observable Domains, Pradeep Reddy Varakantham, Janusz Marecki Jun 2012

Delayed Observation Planning In Partially Observable Domains, Pradeep Reddy Varakantham, Janusz Marecki

Research Collection School Of Information Systems

Traditional models for planning under uncertainty such as Markov Decision Processes (MDPs) or Partially Observable MDPs (POMDPs) assume that the observations about the results of agent actions are instantly available to the agent. In so doing, they are no longer applicable to domains where observations are received with delays caused by temporary unavailability of information (e.g. delayed response of the market to a new product). To that end, we make the following key contributions towards solving Delayed observation POMDPs (D-POMDPs): (i) We first provide an parameterized approximate algorithm for solving D-POMDPs efficiently, with desired accuracy; and (ii) We then ...