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INFORMS Nashville – 2016

477

WD68

Mockingbird 4- Omni

Complex Process Modeling, Monitoring

and Optimization

Sponsored: Quality, Statistics and Reliability

Sponsored Session

Chair: Youngseon Jeong, Chonnam National University, Korea,

Republic of,

youngseonjeong@gmail.com

Co-Chair: Myong K Jeong, Rutgers University, 96 Frelinghuysen Road,

Piscataway, NJ, 08854, United States,

mjeong@rci.rutgers.edu

1 - A Predictive Modeling Of Pump Breakdown For Semiconductor

Fabrication Based On Sensor Data

Kil Soo Kim, Principal Engeneer, Samsung Electronics,

SamsungJeonja-ro, Hwasung, Gyeonggi-do, 18448, Korea,

Republic of,

ks1.kim@samsung.com,

Chanhwi Jung, Solmi Park,

Hyung-Seok Kang, Dongkyu Jeon, Seung Hoon Tong

We present a method for predictive monitoring of pump breakdown failure which

may result in wafer scrap or unnecessary main chamber stop loss based on

secondly collected sensor data. The sensor data set that were collected massively

during several months from pumps contains useful information to monitor and

predict the condition of pump connected with main chamber. We developed the

monitoring statistics and predictive model which can estimate the remaining

useful life. The real-life case study is presented to illustrate our proposed

procedures.

2 - Application For Modeling And Optimization Of A Crucial

Parameter Identification

Shreya Gupta, University of Texas at Austin, Austin, TX,

shreya.gupta@utexas.edu

We are working with Samsung Semiconductor on building a statistical

optimization model that identifies equipment and parameters to rank best and

worst routes for the purpose of scheduling and testing modified recipes. We are

also employing data mining and statistical techniques to identify control spec to

improve process capability and yield for semiconductor manufacturing. Finally,

we are developing a prototype software to demonstrate the use and value of the

proposed analysis and algorithms.

3 - Phase I Analysis Of Nonlinear Profiles Via Gaussian

Process Models

Yang Zhang, Tianjin University of Commerce, No. 409, Guangrong

Rd., Tianjin, China,

yzhang@tjcu.edu.cn

, Nini Gao, Qing Wang

In profile monitoring, process monitoring and diagnosis remains and important

and challenging problem. Although the analysis of nonlinear profile data have

been extensively studied in the literature, the challenges associated with diagnosis

of nonlinear profiles with within-profile correlation are yet to be well addressed.

In consideration of within-profile correlation, a Gaussian process model is applied

to model the nonlinear profiles. A practical diagnosis scheme based on Schwarz’s

Bayesian information criterion is proposed to identify the outliers in Phase I.

Simulation results show that the proposed method could effectively find outlying

profiles in a historical dataset.

4 - Adaptive Variability Monitoring Procedure For High-dimensional

Processes

Jinho Kim, Qatar University,

jhkim04@gmail.com

Monitoring process variability of a multivariate process is crucial to ensure high

quality of product. However, monitoring process variability in high-dimensional

processes is considerably difficult due to the large number of variables and the

limited number of samples. In this talk, we present a procedure based on an

adaptive LASSO-thresholding for monitoring changes in the covariance matrix.

The performance of the proposed chart, is evaluated for various shift patterns and

compared with one of the existing penalized likelihood based methods. The

results show the effectiveness of the proposed chart.

WD70

Acoustic- Omni

Transportation, Ops IV

Contributed Session

Chair: Emre Kirac, University of Arkansas, 4207 Bell Engineering

Center, Fayetteville, AR, 72701, United States,

ekirac@uark.edu

1 - Public Transit Regulation And Subsidization Under

Asymmetric Information

Yanshuo Sun, PhD Candidate, the University of Maryland, College

Park, MD, 20740, United States,

yssun@umd.edu,

Qianwen Guo,

Zhongfei Li

This paper studies how to subsidize a monopolistic public transit operator with

unknown production cost parameters. An incentive-compatibility regulatory

mechanism which induces the operator to report its true parameter are design:

government seeks to maximize social welfare by determining the transit service

parameters and the subsidy to operator to induce its participation, and the

operator implements the operation schedule to meet financial constraint.

Comparison between complete and asymmetric information in terms of fixed cost

and marginal cost are proposed. It will provide an effective tool for designing

policies and evaluating practices regarding public transit subsidization.

2 - Effects Of Multiple Capacity Changes on Congestion Pricing

Model To Handle “Day Of Operations” Airport Capacity Reduction

Abdul Qadar Kara, Asst. Professor, King Fahd University of

Petroleum and Minerals, KFUPM Box 5067, Dhahran, 31261,

Saudi Arabia,

aqkara@kfupm.edu.sa

In an earlier work, a model was built on basic econometric principle of congestion

pricing embedded within an optimization model. The model provided a

mechanism to manage airport runway capacity reduction on “day of operations”.

The current work reports further analysis of the model, mainly its response

towards the effect of multiple changes in runway access to arriving flights on both

the schedule and the pricing.

3 - Price-compatible Matching Mechanisms For Carrier Collaboration

Su Xiu Xu, The University of Hong Kong, LG108, Composite

Building, HKU, Pokfulam Road, Hong Kong, 999077, China,

xusuxiu@gmail.com

This study is the first extending the existing market design theory to the field of

supply chain and logistics management. It is known that money flow is not

allowed in the matching markets like stable marriage, house allocation, and

kidney exchange. In this study, we explore the potential of lane exchange among

a number of self-interested truckload carriers in a collaboration network. We

propose the (price-compatible) top trading cycles and deals (TTCD) mechanism

and the price-compatible top trading cycles and chains (PC-TTCC) mechanism.

Both mechanisms are effective in terms of the compatibility with money flow,

strategy-proofness, the realized welfare of carriers, and budget balance.

4 - Dynamic Team Orienteering Problem

Emre Kirac, University of Arkansas, 4207 Bell Engineering Center,

Fayetteville, AR, 72701, United States,

ekirac@uark.edu,

Ashlea Bennett Milburn

This study introduces the dynamic team orienteering problem (DTOP), which is a

combinatorial optimization problem with many practical applications such as

humanitarian relief logistics and tourist trip organizations. In DTOP, some

locations are known at planning time while others are dynamic and each

associated with a profit. The goal is to maximize collected profits by visiting a set

of static and dynamic locations throughout a planning horizon within a specified

timeframe. The multiple plan approach (MPA) is adapted to solve DTOP.

Competitive ratio analysis using an offline algorithm is performed to assess the

performance of MPA.

WD71

Electric- Omni

Game Theory IV

Contributed Session

Chair: Manxi Wu, Massachusetts Institute of Technology, 235 Albany

Street, 3112B, Cambridge, MA, 2139, United States,

manxiwu@mit.edu

1 - On Learning How Players Learn: A Mechanical Turk Experiment

Walid Krichene, University of California, Berkeley, Berkeley, CA,

94720, United States,

walid@eecs.berkeley.edu

We consider a noncooperative game in which players compete for resources. In

the online model, the game is played repeatedly and players update their

strategies using an online learning algorithm. We study whether learning

dynamics are descriptive of human behavior. We developed a web application to

simulate the game, and used the Mechanical Turk platform to collect data on

decision dynamics of human players. Using this data, we pose and solve a

dynamics estimation problem, and show that a parameterized online model

(based on the mirror descent method) can be descriptive of players’ decision

dynamics. We give qualitative insights, evaluate the predictive ability of this

model, and discuss its limits.

WD71