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Shrinking the Upper Confidence Bound: A Dynamic Product Selection Problem for Urban Warehouses [article]

Rong Jin, David Simchi-Levi, Li Wang, Xinshang Wang, Sen Yang
2019 arXiv   pre-print
To reduce the fixed cost for large K values, we propose a novel online learning algorithm, which iteratively shrinks the upper confidence bounds within each period, and show its fixed cost is reduced by  ...  The space limit in urban warehouses poses a problem for the online retailers: the number of products (SKUs) they carry is no longer "the more, the better", yet it can still be significantly large, reaching  ...  It shows that, under ConsUCB, the regret per product selection can be upper-bounded by the sum of a standard confidence interval term and the increase in the lower confidence bound of a product in the  ... 
arXiv:1903.07844v2 fatcat:d5p374egqfdhhkxqzyduoyeo4i

Backward Chaining [chapter]

2013 Encyclopedia of Operations Research and Management Science  
for steady state to be achieved. (2) In linear programming (usually referring to a production process model), constraints that express the equality of inflows and outflows of material.  ...  The dynamics of these two variables are described by dr ¼ b 1 ðr; L; tÞdt þ a 1 ðr; L; tÞdo 1 d L ¼ b 2 ðr; L; tÞdt þ a 2 ðr; L; tÞdo 2 & (3) B 98 Balking Here, the drift factors are denoted by the functions  ...  The use of bounds to traverse a search tree corresponds to the selection of branches to investigate or ignore.  ... 
doi:10.1007/978-1-4419-1153-7_200968 fatcat:wsdsqf2wxrckvpoq4yh5f7rsqm

Job Creation or Destruction? Labor-Market Effects of Wal-Mart Expansion

Emek Basker
2003 Social Science Research Network  
The phenomenal expansion of Wal-Mart provides a clean case for studying the labor-market effects of increased efficiency.  ...  1 3 on the upper bound); the exception is the class-size of 100,000+, to which I assign 150% of the lower bound, or 150,000.  ...  In those instances, I assume that the actual number of employees of a firm of size X is a weighted mean of the lower and upper bounds on its employmentsize class (with weight 2 3 on the lower bound and  ... 
doi:10.2139/ssrn.371102 fatcat:nippil6d3ncehkxn2nzu63oqxa

Job Creation or Destruction? Labor Market Effects of Wal-Mart Expansion

Emek Basker
2005 Review of Economics and Statistics  
The phenomenal expansion of Wal-Mart provides a clean case for studying the labor-market effects of increased efficiency.  ...  1 3 on the upper bound); the exception is the class-size of 100,000+, to which I assign 150% of the lower bound, or 150,000.  ...  In those instances, I assume that the actual number of employees of a firm of size X is a weighted mean of the lower and upper bounds on its employmentsize class (with weight 2 3 on the lower bound and  ... 
doi:10.1162/0034653053327568 fatcat:djfzsph7sbfldgwijtmsgv2uri

Vol. 2 n. 2 | 2017 | FULL ISSUE

Luisa Bravo
2017 The Journal of Public Space  
project, the Federation Square arts-events-entertainment complex to the outdoors; (iv) create a new landscape context for the complex; and (v) add to the Yarra River events precinct extending from Melbourne's  ...  I would also like to thank my work group for the Urban Design Studio II during the Master in Architecture and Urban Design, in 2008: Shreya Malu, Nu Xuo, Maria Alicia Bechdach.  ...  Monaco for tourism of the upper classes.  ... 
doi:10.5204/jps.v2i2.103 fatcat:osuvuzk655ejdgqjtyy77r4huu

Essentials of Supply Chain Management [article]

Hokey Min
2015 Zenodo  
begun to realize the strategic importance of planning, controlling, and designing a supply chain as a whole.  ...  Over the years, most firms have focused their attention on the effectiveness and efficiency of separate business functions such as purchasing, production, marketing, financing, and logistics.  ...  if the economy softens, the shipper would be bound by a multiyear agreement with little negotiation room for favorable rates in subsequent years.  ... 
doi:10.5281/zenodo.5710302 fatcat:t34taptxabcsrc6y6coejjb7gm

Methods and Measures for Analyzing Complex Street Networks and Urban Form [article]

Geoff Boeing
2017 arXiv   pre-print
It introduces a new tool, OSMnx, to collect street network and other urban form data for anywhere in the world, then analyze and visualize them.  ...  This dissertation unpacks theories of nonlinearity and complex systems, then develops a framework for assessing the complexity of urban form and street networks.  ...  Such dynamic measures are less useful for the characterization and analysis of urban form. On the other hand, a neighborhood can be examined as an output or product of human behavior and production.  ... 
arXiv:1708.00845v1 fatcat:aewkj6gl4ve3xm4iciufjgtc74

Methods and Measures for Analyzing Complex Street Networks and Urban Form

Geoff Boeing
2017 Social Science Research Network  
Humans shape their urban ecosystems (the built environment, institutions, cultures, etc.) and are in turn shaped by them.  ...  Recent years have witnessed an explosion in the science of networks.  ...  Such dynamic measures are less useful for the characterization and analysis of urban form. On the other hand, a neighborhood can be examined as an output or product of human behavior and production.  ... 
doi:10.2139/ssrn.3012684 fatcat:dgujgwk7argjdjvlgkjhbcp4tm

Creating Micro-Marketing Pricing Strategies Using Supermarket Scanner Data

Alan L. Montgomery
1997 Marketing science (Providence, R.I.)  
, Movement, and Profits for a Selected Store.  ...  An upper bound on these managerial costs can be inferred from the current returns to zone-pricing strategies, which also require store-level decisions. (In ?  ... 
doi:10.1287/mksc.16.4.315 fatcat:gho75xhsrrar3im5tru3cnl5pe

SELF-REGULATORY EFFICIENCY OF TRANSPORT ENTERPRISES

Andrzej Letkiewicz, Beata Majecka
2017 Zeszyty Naukowe Uniwersytetu Gdańskiego Ekonomika Transportu i Logistyka  
However, as a general tendency, smaller enterprises tend to show a better ability to compensate for the changes in their surroundings.  ...  The self-regulatory efficiency indicator is a metric which collects basic economic characteristics and allows identifying enterprises which can compensate for the changes in a stable way and those whose  ...  Certain problems affecting the transport industry were evident in the shrinking markets as well as in the weak liquidity of individual entities (Otto, 2016) .  ... 
doi:10.5604/01.3001.0010.5781 fatcat:qkdjwwa7kzc2hl4hikql6gwwn4

Lack of Memory [chapter]

2013 Encyclopedia of Operations Research and Management Science  
They were solved by Branch-and-Bound. This LD shrinks problem size, and yields Lagrangian bounds much stronger than the LP bounds.  ...  These are usually much tighter than the brackets coming from LP-based bounds and heuristics de Matta, R., & Guignard, M. (1994). Dynamic production scheduling for a process industry.  ...  A decomposition approach is utilized for the overall multi-product, multi-echelon problem.  ... 
doi:10.1007/978-1-4419-1153-7_200373 fatcat:yem4y7syhze2pjtf3sop5fhak4

An analytics approach to designing patient centered medical homes

Saeede Ajorlou, Issac Shams, Kai Yang
2014 Health Care Management Science  
, provides an upper bound for its optimal value. Although !" !",! may bias the search process, we calculate it iteratively to keep a best upper bound.  ...  Following this, we present our proposed primal-dual algorithm iteratively computes a reference assignment, updates the fixed costs to seek for a consensus design, performs upper bounding and lower bounding  ... 
doi:10.1007/s10729-014-9287-x pmid:24942633 fatcat:n2r6thntg5azvbkummopwyas5q

Strategies and Boundaries: Subcontracting and the London Trades in the Long Eighteenth Century

Giorgio Riello
2008 Enterprise & Society  
structures and norms of production, made subcontracting a tool of organisational flexibility.  ...  In the eighteenth century subcontracting was an important way of organising production in sectors producing as different commodities as clocks, coaches, footwear, furniture and scientific instruments.  ...  .20 Thus, for instance, Diderot's Encyclopedie, as well as a number of paintings, sketches, and prints, reconstructed the bounded space of individual productive units providing a sense of coherence and  ... 
doi:10.1017/s1467222700006959 fatcat:dzxyvf2uxvemtixz7tnjaxlsgu

Strategies and Boundaries: Subcontracting and the London Trades in the Long Eighteenth Century

G. Riello
2008 Enterprise & Society  
structures and norms of production, made subcontracting a tool of organisational flexibility.  ...  In the eighteenth century subcontracting was an important way of organising production in sectors producing as different commodities as clocks, coaches, footwear, furniture and scientific instruments.  ...  .20 Thus, for instance, Diderot's Encyclopedie, as well as a number of paintings, sketches, and prints, reconstructed the bounded space of individual productive units providing a sense of coherence and  ... 
doi:10.1093/es/khn004 fatcat:xru2erwtgfcpvkrkwow23cmleq

GEOGRAPHICAL EXCURSION TO ETHIOPIA 28 March – 10 April 2012 Excursion guide [article]

Jan Nyssen, Amaury Frankl, Katrien
2012 Zenodo  
The corresponding author is currently employed as a post-doctoral research fellow at the Division Forest, Nature and Landscape and is funded by the Research Fund K.U.Leuven.  ...  Acknowledgements Funds for this research were provided by the Austrian Exchange Service (ÖAD), Austrian Development Cooperation in Ethiopia, Mekelle University, Ethiopian Science and Technology Commission  ...  warehouses exist, there are no institutions that offer warehouse or storage service.  ... 
doi:10.5281/zenodo.5801105 fatcat:l3ljgxbm5rcnjm3vrhwh3gbgga
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