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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 ...


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.


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.


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 ...


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 ...