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Finding Targets in Non-Radial FDH Models: A Hybrid Technique Based on STEM and Extended Ratio Based Approach

Mehdi Abbasi, Mohammad Reza Mozaffari, Peter F. Wanke, Mohamad Amin Kaviani
2021 Applied Sciences  
Free disposal hull models can be created if there is no concern for convexity, and using non-radial DEA models can simultaneously create more logical and practical situations for finding DMU targets.  ...  The proposed technique can find decision making unit targets in non-radial free disposal hull models using the step method.  ...  Acknowledgments: This project (Determining Appropriate Operations Strategies of Organizations and improving their Operations Performance using Data Envelopment Analysis method: A Case Study in Fars Province  ... 
doi:10.3390/app112210626 fatcat:fiofuqkhczbkbkcms4dtzyrpfq

On the Axiomatic of Pollution-generating Technologies: Non-parametric Production Analysis

Arnaud Abad, Walter Briec
2019 European Journal of Operational Research  
Following the notion of output congestion, a suitable B-disposable assumption is introduced.  ...  This approach aims to reveal any PgT in production processes that are compatible with a minimal set of assumptions. Thus, a more general class of PgT (convex and non-convex) is defined.  ...  Acknowledgements The authors would like to thank the anonymous referees for their helpful comments which greatly improved this paper.  ... 
doi:10.1016/j.ejor.2019.02.027 fatcat:le4ceaqflzbzfnhs7idavftafq

Optimal Pretreatment System of Flowback Water from Shale Gas Production

Alba Carrero-Parreño, Viviani C. Onishi, Raquel Salcedo-Díaz, Rubén Ruiz-Femenia, Eric S. Fraga, José A. Caballero, Juan A. Reyes-Labarta
2017 Industrial & Engineering Chemistry Research  
This paper introduces a new optimization model for WPS simultaneous synthesis, especially developed for flowback water from shale gas production.  ...  The mathematical model is formulated via generalized disjunctive programming (GDP) and solved by re-formulation as a mixed-integer nonlinear programming (MINLP) problem, to minimize the total annualized  ...  The model has been solved on a computer with a 3 GHz Intel Core Dual Processor and 4 GB RAM running Windows 7. The CPU time did not exceed some seconds to find the optimal solution.  ... 
doi:10.1021/acs.iecr.6b04016 fatcat:urvy6zrzdjghrmeuoqcu2vdzmi

Performance measurement and best-practice benchmarking of mutual funds: combining stochastic dominance criteria with data envelopment analysis

Timo Kuosmanen
2007 Journal of Productivity Analysis  
We propose a method for mutual fund performance measurement and best-practice benchmarking, which endogenously identifies a dominating benchmark portfolio for each evaluated mutual fund.  ...  Portfolio diversification possibilities are accounts for by using Data Envelopment Analysis (DEA).  ...  Acknowledgements This paper has benefited of helpful comments from Thierry Post, two anonymous reviewers, and participants in the 4 th International DEA Symposium  ... 
doi:10.1007/s11123-007-0045-7 fatcat:ugr7fpzpfvgkld62oh6ko45iom

Hub Location Problems: The Location of Interacting Facilities [chapter]

Bahar Y. Kara, Mehmet R. Taner
2011 International Series in Operations Research and Management Science  
except for brief excerpts in connection with reviews or scholarly analysis.  ...  Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden.  ...  Thanks are also due to an anonymous referee whose comments helped to streamline the paper. Anderson SP (1988) Equilibrium existence in a linear model of spatial competition.  ... 
doi:10.1007/978-1-4419-7572-0_12 fatcat:skbs7zlmqjb5pk2swpw3yxemna

Towards a unified territorial design approach — Applications, algorithms and GIS integration

Jörg Kalcsics, Stefan Nickel, Michael Schröder
2005 TOP - An Official Journal of the Spanish Society of Statistics and Operations Research  
In the following section we review the existing literature on models and solution techniques for solving territory design problems and in Sections 5 and 6 present in detail two methods for solving such  ...  In this paper we review the existing literature for applications of territory design problems and solution approaches for solving these types of problems.  ...  Tiwari Grid free method for solving the Poisson equa tion A Grid free method for solving the Poisson equation is presented. This is an it er a tive method.  ... 
doi:10.1007/bf02578982 fatcat:yji7qc25yngvjcm23l7p4skuxy

Semiotics and Human-Robot Interaction [chapter]

Joao Sequeira, M.Isabel Ribeiro
2007 Human Robot Interaction  
The chapter reviews a number of topics directly related to HRI and describes a research effort to develop a HRI model inspired in semiotics concepts developed in linguistics to model interactions among  ...  This solution bears some inspiration in typically human charateristics. For instance, when looking at people moving there is a short term memory of the space spanned in the image plane.  ...  For example, a significant research effort is being devoted to designing human-robot interface that makes it easier for the people to interact with robots.  ... 
doi:10.5772/5200 fatcat:dhzlnbmjivhbzp4sfodhv3wdr4

Quantitative results on the corrector equation in stochastic homogenization

Antoine Gloria, Felix Otto
2017 Journal of the European Mathematical Society (Print)  
Before we turn to fast-assembly, let us make a comment of the RB method used here.  ...  Let us conclude this section by a concrete example and by a comment on the periodization method (which we have not analyzed yet in the continuous case).  ...  In order to make use of this model in practice, one needs to make precise the structure of the network and derive some formula for H Λ (u, β).  ... 
doi:10.4171/jems/745 fatcat:k4h5ijpm7rh7jjiyrvm7lvwlgq

Abstracts of Working Papers in Economics

1989 Abstracts of Working Papers in Economics  
, and (2) the variance in the percentage change in consumption is a monotone function of the age of the cohort.  ...  This section contains abstracts and complete bibliographic information for current working papers, listed alphabetically by primary author.  ...  This paper shows that to the contrary, the new law creates large taxes on being married for some couples, and large subsidies for others. TI Federal Deducibility and Local  ... 
doi:10.1017/s0951007900001133 fatcat:gece2r4j5bfwfhihguvkkuovga

Differential Machine Learning [article]

Brian Huge, Antoine Savine
2020 arXiv   pre-print
We can produce fast analytics in models too complex for closed form solutions, extract the risk factors of complex transactions and trading books, and effectively compute risk management metrics like reports  ...  Differential ML is a general extension of supervised learning, where ML models are trained on examples of not only inputs and labels but also differentials of labels wrt inputs.  ...  Some models are non-diffusive, for example, jump diffusion models a la Merton or rough volatility models a la Gatheral.  ... 
arXiv:2005.02347v4 fatcat:jmylu4ctardr7daswczj2aff44

On the theory and applications of mechanism design and coalitional games in electricity markets [article]

Orcun Karaca
2020 arXiv   pre-print
We consider a market that involves continuous goods, general nonconvex constraints, and second stage costs.  ...  To promote reserve exchange, a preemptive model can optimally withdraw inter-area transmission capacity from day-ahead energy for reserves.  ...  bids and nonconvex constraint sets, they are viable payment mechanisms for any market modeled by (3.1).  ... 
arXiv:2012.05047v1 fatcat:lengsfdv3jc67cxxl3uem55cje

Journal of Sustainable Development, Vol. 3, No. 1. March 2010

Editor JSD
2010 Journal of Sustainable Development  
This paper presents the findings which have arisen from a literature review carried out at the beginning of a three year CONACYT sponsored PhD project, investigating water-related activities in the home  ...  It illustrates how habits and routines emerge and develop.  ...  We thank Jack Sinden, School of Business, Economics and Public Policy, University of New England, Australia for his useful comments regarding the econometric model and for editing the manuscript.  ... 
doi:10.5539/jsd.v3n1p0 fatcat:ypzb5xoponblvkxf735pzwaymi

Sparsity-Aware Learning and Compressed Sensing: An Overview [article]

Sergios Theodoridis, Yannis Kopsinis, Konstantinos Slavakis
2012 arXiv   pre-print
Our intent is to update this review from time to time, since this is a very hot research area with a momentum and speed that is sometimes difficult to follow up.  ...  This paper is based on a chapter of a new book on Machine Learning, by the first and third author, which is currently under preparation.  ...  We have not touched more expensive methods such as interior point methods for solving the 1 convex optimization task. A review of such methods is provided in [Kim 07 ].  ... 
arXiv:1211.5231v1 fatcat:aeog5xwn4vghbbxjoklnanzl6y

Abstracts of Working Papers in Economics

1991 Abstracts of Working Papers in Economics  
AB We develop and estimate a model of the union's optimal extent of organizing activity that accounts for the decision of employers regarding resistance to union organizing.  ...  This section contains abstracts and complete bibliographic information for current working papers, listed alphabetically by primary author.  ...  We find support for the conventional view that periods of low demand lead through the emergence of excess capacity to a breakdown of collusive pricing.  ... 
doi:10.1017/s0951007900002096 fatcat:4xtt3y7fcjdtxdozocrso6ovha

Global and Local Scale Characteristics in Convex and Nonconvex Nonparametric Technologies: A First Empirical Exploration *

Giovanni Cesaroni, Kristiaan Kerstens
2015 unpublished
Finally, besides comparing the FDH and DEA evolution of ray-average productivity for some typical individual observations, we introduce in the literature two original methods for the determination of local  ...  In particular, we both propose a simplified method to compute the global returns to scale and employ some secondary data sets to investigate the frequency of the special case of global sub-constant returns  ...  Its multiple output extension has probably first been proposed in Deprins, Simar, and Tulkens (1984) and these authors introduced the moniker Free Disposal Hull (FDH). 2 Convexity is justified for time  ... 
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