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Characterizations of Decomposable Dependency Models

L. M. De Campos
1996 The Journal of Artificial Intelligence Research  
This paper presents new characterizations of decomposable models in terms of independence relationships, which are obtained by adding a single axiom to the well-known set characterizing dependency models  ...  Decomposable dependency models possess a number of interesting and useful properties.  ...  I am particularly grateful to the reviewer who pointed out to me the existence of Lauritzen's characterization of chordal graphs.  ... 
doi:10.1613/jair.329 fatcat:obru4xr3zjd6raer7idivw73uu

Characterizations of Decomposable Dependency Models [article]

L. M. deCampos
1996 arXiv   pre-print
This paper presents new characterizations of decomposable models in terms of independence relationships, which are obtained by adding a single axiom to the well-known set characterizing dependency models  ...  Decomposable dependency models possess a number of interesting and useful properties.  ...  I am particularly grateful to the reviewer who pointed out to me the existence of Lauritzen's characterization of chordal graphs.  ... 
arXiv:cs/9612103v1 fatcat:6cqxwtbijvcarjvrcyljw6hf54

Research Note—Designing Promotion Ladders to Mitigate Turnover of IT Professionals

Frank MacCrory, Vidyanand Choudhary, Alain Pinsonneault
2016 Information systems research  
We also offer an explanation for the observation that jobs characterized by boundary-spanning activities have higher turnover, and show that such jobs are more sensitive to the effect of likelihood of  ...  We draw on tournament theory, which is primarily concerned with inducing effort in employees, to decompose promotability into two distinct constructs: the likelihood of promotion and benefit from promotion  ...  This research was funded in part by the National Science Foundation [Grant SES-0527180].  ... 
doi:10.1287/isre.2016.0652 fatcat:tcwjsjbtf5aona6cdewuevaosi

Technical note: Some structural results on acyclic supply chains

Junmin Shi, Yao Zhao
2010 Naval Research Logistics  
We specify ways to decompose them.  ...  Most interestingly, we identify conditions for the best dedicated stocking policy to outperform the best shared stocking policy, and for an acyclic supply chain to be decomposable into a simpler network  ...  This research is supported in part by a Faculty Research Grant from Rutgers Business School-Newark and New Brunswick.  ... 
doi:10.1002/nav.20421 fatcat:tm4lbspe4nbdbnylppfgalmgam

CLiFF Notes: Research in the Language, Information and Computation Laboratory of the University of Pennsylvania [article]

Editors: Matthew Stone, Libby Levison
1995 arXiv   pre-print
Short abstracts by computational linguistics researchers at the University of Pennsylvania describing ongoing individual and joint projects.  ...  This division into local reasoner and global planner reflects the demands noted above: first, it supports goal-directed diagnosis, in the sense that its attempt to characterize a patient's injuries is  ...  semantically characterize each complement.  ... 
arXiv:cmp-lg/9506008v1 fatcat:aidgv3pdzvfatc7yjygdvthcjq

Data Mining in Schizophrenia Research — Preliminary Analysis [chapter]

Stefan Arnborg, Ingrid Agartz, Håkan Hall, Erik Jönsson, Anna Sillén, Göran Sedvall
2002 Lecture Notes in Computer Science  
The subjects are characterized by diagnosis, genotype, brain anatomy (MRI), laboratory tests on blood samples, and basic demographic data.  ...  More importantly, we discuss a number of issues in selection of methods from the very large set of tools in data mining and statistics. 28 Stefan Arnborg et al.  ...  Based on the strength of pairwise variable associations, decomposable graphical models were obtained from the data matrix.  ... 
doi:10.1007/3-540-45681-3_3 fatcat:uixwkvllurgvdkeptgep7et3j4

Technical Note—A Note on Relaxations of the Choice Network Revenue Management Dynamic Program

Sumit Kunnumkal, Kalyan Talluri
2016 Operations Research  
Our results hold for any discrete-choice model and do not involve any asymptotic scaling.  ...  is within a factor of 2.  ...  In general, the tractability of the approximation methods depends on the underlying discrete-choice model.  ... 
doi:10.1287/opre.2015.1453 fatcat:ggvbgn54sbhwpe4ljv32wvfzr4

Technical Note—A Sampling-Based Approach to Appointment Scheduling

Mehmet A. Begen, Retsef Levi, Maurice Queyranne
2012 Operations Research  
We use the convexity and subdifferential of the objective function of the appointment scheduling problem to determine bounds on the number of independent samples required to obtain a provably near-optimal  ...  We consider the problem of appointment scheduling with discrete random durations but under the more realistic assumption that the duration probability distributions are not known and only a set of independent  ...  Note that S i and C i are random variables that depend on the appointment vector A, and the random duration vector p.  ... 
doi:10.1287/opre.1120.1053 fatcat:qhcqi5z4enblpj2u3fz667cvdi

Technical Note—Cost Formulas for Continuous Review Inventory Models with Fixed Delivery Lags

Awi Federgruen, Zvi Schechner
1983 Operations Research  
In continuous review models with a fixed delivery lag T, the state of the system is conveniently described by the net inventory position = (inventory on hand) plus (outstanding orders), in spite of most  ...  cost components depending on the actual inventory on hand.  ...  IN CONTINUOUS review single-item inventory models, the stochastic demand is conveniently characterized by the renewal reward process (Xc, Yn); n = 1, 2, * * * 1.  ... 
doi:10.1287/opre.31.5.957 fatcat:5v6w4m3aorhrpn5zettqq5bh4e

Semi-supervised Multiple Classifier Systems: Background and Research Directions [chapter]

Fabio Roli
2005 Lecture Notes in Computer Science  
This paper's goal is to review the background results that can be exploited to promote research on semi-supervised multiple classifier systems, and to outline some future research directions.  ...  In the five editions of MCS workshop, most of the papers have dealt with design methods and applications of supervised multiple classifier systems.  ...  A special thank goes to Nina Hathaway and Nagi Rao for their friendly and precious help with the editing and revision of this manuscript.  ... 
doi:10.1007/11494683_1 fatcat:r4a7bnb4hjespkh7q5lp4iysau

A Note on the Estimation of Job Amenities and Labor Productivity

Arnaud Dupuy, Alfred Galichon
2015 Social Science Research Network  
This note introduces a maximum likelihood estimator of the value of job amenities and labor productivity in a single matching market based on the observation of equilibrium matches and wages.  ...  Our estimator is suited for applications to a wide range of assignment problems. JEL Classification: C35, C78, J31.  ...  In the remainder of the paper, Equations (3.1)-(3.4) will characterize the model to estimate. 3.3. Parametrization.  ... 
doi:10.2139/ssrn.3004406 fatcat:qkczzmqgrfhkxoarqmz3vud4cy

Agent Environments for Multi-agent Systems – A Research Roadmap [chapter]

Danny Weyns, Fabien Michel
2015 Lecture Notes in Computer Science  
Ten years ago, researchers in multi-agent systems became more and more aware that agent systems consist of more than only agents.  ...  for numerous follow up research efforts.  ...  The Collaboration View models collaborations as reusable modules and shows how they are decomposed into reusable submodules (i.e., roles, interactions, and behaviors).  ... 
doi:10.1007/978-3-319-23850-0_1 fatcat:67eowoj5v5eoxaqhu4xhj6krym

Pattern-Based Design Research – An Iterative Research Method Balancing Rigor and Relevance [chapter]

Sabine Buckl, Florian Matthes, Alexander W. Schneider, Christian M. Schweda
2013 Lecture Notes in Computer Science  
We illustrate the applicability of PDR by presenting a research project from the area of enterprise architecture management.  ...  This is often referred to as the rigor and relevance challenge of design science research.  ...  , of problems that are characterized by asymmetric criteria.  ... 
doi:10.1007/978-3-642-38827-9_6 fatcat:gttflir46raatcwcmfdcaueoky

A Note on Analysts' Earnings Forecast Errors Distribution

Daniel A. Cohen, Thomas Lys
2003 Social Science Research Network  
This is important for researchers who rely on techniques that are sensitive to the distributional assumptions of analysts' forecast errors.  ...  of small positive forecast errors (middle asymmetry).  ...  The economic implications of those two asymmetries depend on the specific economic context and on the research method used.  ... 
doi:10.2139/ssrn.471322 fatcat:uo63qfaxc5cw5a5dtkwfvoqaem

Further Research on Node Based Bottleneck Improvement Problem for Multicut [chapter]

Xiucui Guan, Jie Su
2006 Lecture Notes in Computer Science  
Theme: ECCO is the annual meeting of the EURO working group on combinatorial optimization. ECCO was started in 1987 by a group of leading experts in Operations Research and Management Science.  ...  This conference gives researchers an opportunity to present their latest results and to discuss current developments and applications, besides stimulating future interactions between the members of this  ...  Acknowlegements This work is partially supported by Spanish Ministry of Science and Technology Research Project DPI2001-2715-C02-02, from National Plan of Scientific Research and Technological Development  ... 
doi:10.1007/11816157_107 fatcat:xjdnf4kesrbczoh4ilvxxixqei
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