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INFORMS Nashville – 2016

134

MA37

205C-MCC

Securing Sustainable Future

Sponsored: Manufacturing & Service Oper Mgmt, Sustainable

Operations

Sponsored Session

Chair: Elena Belavina, University of Chicago Booth School of Business,

Chicago, IL, United States,

elena.belavina@chicagobooth.edu

1 - Grocery Access Market Structure And Food Waste

Elena Belavina, University of Chicago,

elena.belavina@chicagobooth.edu

Access to grocery, or how dense is the network of retail stores in a neighborhood,

varies extensively as a result of zoning laws and other city government initiatives.

Similarly, some markets are dominated by one chain, while others have a high

degree of competition with a lot of independent grocery stores. This paper studies

how access to grocery stores, and the extent and nature of competition in the

grocery retail market influences food waste.

2 - Pricing, Product Display, Inventory And Waste Management For

Deteriorating Products.

Dorothee Honhon, University of Texas at Dallas,

Richardson, TX, United States,

dorothee.honhon@utdallas.edu

Xiajun Amy Pan, Zumbul Atan

We consider the problem of a retailer managing the inventory and the prices of

products whose quality deteriorates over time. We show that by appropriately

displaying the most/least fresh products on the store shelves, the retailer can, in

some cases, increase profits and reduce waste.

3 - The Impact Of Legislation on Food Waste

Alexandra Heeney, Stanford University, Stanford, CA, 9,

United States,

aheeney@stanford.edu,

Warren H Hausman,

Erica Plambeck

Worldwide, 30-40% of all food is wasted, which has a significant environmental

impact: agriculture is responsible for 22% of all greenhouse gas emissions. This

research explores whether California’s AB32 and renewable energy legislation

(that exempts farmers from carbon tax) increases the negative environmental

impact of the food system (by preventing the true cost of food to propagate down

the supply chain making food waste relatively inexpensive). Further, we study

how the supply chain structure and design contribute to food waste and strategies

for mitigating this.

4 - Design Implications Of Extended Producer Responsibility For

Durable Products

Ximin (Natalie) Huang, Georgia Institute of Technology, 800 West

Peachtree Street, NW, Atlanta, GA, 30308, United States,

ximin.huang@scheller.gatech.edu

, Atalay Atasu, Beril L Toktay

We consider a monopolist who has two product design options to manage the

end-of-life costs/revenues associated with its products: making products more

durable or recyclable. We explore how the recyclability and durability choices are

affected by the requirements of take-back legislation.

MA38

206A-MCC

Meet the Editors Panel – NPD, Innovation,

and Technology

Invited: New Product Development

Invited Session

Moderator: Sanjiv Erat, University of California-San Diego, UCSD,

La Jolla, CA, United States,

serat@ucsd.edu

1 - Meet The Editors Panel - NPD, Innovation, andTechnology

Joel Wooten, University of South Carolina, 1014 Greene St.,

Columbia, SC, 29208, United States,

joel.wooten@moore.sc.edu

This interactive session aims at assisting readers and researchers in staying

informed on the most important topics and the latest development in New

Product Development, Technology, and Innovation Management.

2 - Panelist

Cheryl Gaimon, Georgia Institute Of Technology, Scheller College Of

Business, Atlanta, GA, 30308, United States,

cheryl.gaimon@scheller.gatech.edu

3 - Panelist

Moren Levesque, York University, Schulich School Of Business,

Toronto, ON, Canada,

mlevesque@schulich.yorku.ca

MA39

207A-MCC

Applied Probability and Machine Learning II

Sponsored: Applied Probability

Sponsored Session

Chair: Sewoong Oh, UIUC, 2011 Savanna Dr, Champaign, IL, 61822,

United States,

sewoong79@gmail.com

1 - Online Rules For Control Of False Discovery Rate

Adel Javanmard, Assistant Professor, University of Southern

California, Bridge Memorial Hall, 3670 Trousdale Parkway, Los

Angeles, CA, 90089, United States,

ajavanma@marshall.usc.edu,

Andrea Montanari

Multiple hypothesis testing is a core problem in statistical inference and arises in

almost every scientific field. A common error criteria in this context is the false

discovery rate (FDR). In this talk, we consider the problem of controlling FDR in

an “online manner”. Concretely, we consider an ordered, possibly infinite,

sequence of null hypotheses where at each step the statistician must decide

whether to reject current null hypothesis having access only to the previous

decisions. We introduce a class of generalized alpha-investing procedures and

prove that any rule in this class controls FDR in online manner. Time permitting,

we will discuss applications for Ad click predictions and A/B testing.

2 - Newton Stein Method: An Optimization Method For Glms

Murat Erdogdu, Stanford University,

erdogdu@stanford.edu

We consider the problem of efficiently computing the maximum likelihood

estimator in Generalized Linear Models (GLMs) when the number of observations

is much larger than the number of coefficients (n>>p>>1). In this regime,

optimization algorithms can immensely benefit from approximate second order

information. We propose an alternative way of constructing the curvature

information by formulating it as an estimation problem and applying a Stein-type

lemma, which allows further improvements through sub-sampling and

eigenvalue thresholding. Our algorithm enjoys fast convergence rates, resembling

that of second order methods, with modest per-iteration cost.

3 - Data-driven Rank Breaking For Efficient Rank Aggregation

Ashish Khetan, UIUC, Urbana, IL, United States,

Khetan2@illinois.edu

Rank aggregation systems collect ordinal preferences from individuals to produce

a global ranking. Rank-breaking is a common practice to reduce the

computational complexity of learning the global ranking. The individual

preferences are broken into pairwise comparisons and applied to efficient

algorithm. However, naive rank-breaking approaches can result in inconsistent

estimates. The key idea to produce accurate and unbiased estimates is to treat the

pairwise comparisons unequally, depending on the topology of the collected data.

In this paper, we provide the optimal consistent rank-breaking estimator. This

allows us to characterize the trade-off between accuracy and complexity.

4 - On The Capacity Of Information Processing Systems

Kuang Xu, Stanford University, Stanford, CA, United States,

kuangxu@gmail.com,

Laurent Massoulie

We analyze a family of information processing systems, where a finite set of

experts or servers are employed to extract information about a stream of

incoming jobs, each associated with a hidden label. An inspection by an expert

produces a noisy outcome that depends both on the job’s hidden label and the

type of the expert, and occupies the expert for a finite time duration. A decision

maker’s task is to dynamically assign inspections so as to accurately recover all job

labels while keeping the system stable. Crowdsourcing, diagnostics and

experiment designs are among our chief motivations. Our main result is an

asymptotically optimal inspection policy that utilizes the fewest experts.

MA37