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Solving Hard Mixed-Integer Programming Problems with Xpress-MP: A MIPLIB 2003 Case Study
2009
INFORMS journal on computing
Over the past decade there has been a huge improvement in the performance of state-of-the-art MIP codes. ...
Combined with the increased performance of computers over this period the size and complexity of the problems that can be solved has increased enormously. ...
[1.8×, 2.1×]
1.9×
air04
36 s
16.8±0.6 s [2.1×, 2.2×]
2.1×
pk1
228 s
104.4±13.7 s [1.9×, 2.5×]
2.2×
Table 5 : 5 Control parameters to improve Xpress 2006B performance on some MIPLIB 2003 problems.ing ...
doi:10.1287/ijoc.1080.0293
fatcat:npiwf3ytnzgojomz4fblczxdry
Literature Reviews: Advising Doctoral Students
2007
i-manager's Journal of Educational Technology
research skills through consistent self-evaluation of their work and application of instructor suggestions. ...
problems.Ability to integrate theory and method-research for all disciplines involves an understanding of the interrelationship between theory, method and research design, practical skills and particular ...
A good review places a research project in a context and demonstrates its relevance by making connections to a body of knowledge. To integrate and summarize what is known in an area. ...
doi:10.26634/jet.3.4.659
fatcat:dbtrdkoymve2zjtzaxfa4fifry
ACDC: Advanced consolidation for dynamic containers
2017
2017 IEEE 16th International Symposium on Network Computing and Applications (NCA)
It has been demonstrated that reclaiming the unused memory of a VM is a tedious task, infeasible in production. ...
Indeed, we observed that when a new container boots, the memory of active containers is reclaimed while unused memory is still available in other containers that are inactive. ...
We wanted to validate the hypothesis that the problemi.e. the erratic transfers of memory during consolidationwas solely due to the fact that the applications were deployed in containers. ...
doi:10.1109/nca.2017.8171363
dblp:conf/nca/CarverSM17
fatcat:yes2k52ixrdsvbhwzartk3usha
Deriving the Normalized Min-Sum Algorithm from Cooperative Optimization
[article]
2006
arXiv
pre-print
However, it is a critical question to understand the mathematical principle underlying the algorithm. ...
The algorithm is derived directly from cooperative optimization, a newly discovered general method for global/combinatorial optimization. ...
The cooperation among solving those sub-problems is thus achieved by having each sub-problem compromising its solution with the solutions of other sub-problems.Ẽ i (x) is called the modified objective ...
arXiv:cs/0609088v1
fatcat:cpewpn2mafe6fprid64sap3khy
Predicting Topic Participation by Jointly Learning User Intrinsic and Extrinsic Preference
2019
IEEE Access
A specific aspect of interest is to predict which topics a particular user is more likely to be involved in. ...
Furthermore, to explain the predictions made by our "black-box" model, we investigate the importance of each training sample on the topic prediction performance of a testing instance to demonstrate its ...
formally defined as a multi-label classification problemi.e., learning a classifier that links users to their potentially interested topics: u i ∈ V → T i ∈ T . ...
doi:10.1109/access.2019.2890826
fatcat:jtn3g6qczfh43eu55jrc5vzyju
Research and Science Today No. 1(5)/2013
2013
Social Science Research Network
Second, they are frequently cited as the cause of serious problems in the world; an examination of them may lead to an increase in the ability to cope with these problems.ˮ 4 Claude Lévi-Strauss defines ...
For instance, Sudan is a weak and not willing state, being in the same time, a generator of atrocities and humanitarian crises. ...
INFORMATION ABOUT RESEARCH AND SCIENCE TODAY JOURNAL AIMS AND SCOPE OF THE CONTENT Research and Science Today Journal is a publication founded in 2011 and it is dedicated to the students of all levels ...
doi:10.2139/ssrn.2245816
fatcat:7q63qqphwzca7peb4bpfwf2hea
A Survey on Opinion Reason Mining and Interpreting Sentiment Variations
2021
IEEE Access
As a result, there has been a lot of focus on Sentiment Analysis. ...
To identify these gaps, a real-life Twitter dataset is analyzed, and key hypothesis for interpreting public sentiment variations are examined. ...
Though our survey focuses on the second branch of the Sentiment Reasoning problemi.e., Sentiment Variations Reasoning -we find it helpful to explore the methods of extracting reasons behind sentiment itself ...
doi:10.1109/access.2021.3063921
fatcat:i32uuh5dnngy3bsmiuqk26tvim
Functional specialization in the lower and upper visual fields in humans: Its ecological origins and neurophysiological implications
1990
Behavioral and Brain Sciences
A dramatic perceptual deficits exhibited by right parietal patients is illustration of this involvement is reflected in a symptom the inability to solve the correspondence problemi.e., known as teleopsia ...
I propose that a computational accomplish the mapping. It never computed the location of the approach (Marr 1982) is necessary. ...
doi:10.1017/s0140525x00080018
fatcat:r64gs4o2mzhuna7unomkmt6o4i
Stripe Review of Social Sciences in the CGIAR
2009
Social Science Research Network
grants; b) a lack of vision on what CGIAR social science should be doing that has led to an almost unlimited expansion of social scientists' agenda; and c) the Centers' desire to maintain a large cadre ...
This model is characterized by: a) a shift from largely unrestricted core funding to relying excessively on restricted funding, most of which comes through very small, short-duration developmentoriented ...
Resources and time are limited to fully cover all the problems.ʺ This might be said for many CGIAR social science projects aimed primarily at downstream impacts. ...
doi:10.2139/ssrn.1844803
fatcat:wfidqkh56rb73ppazrgqssn2uu
Tube-Based Model Predictive Control for the Approach Maneuver of a Spacecraft to a Free-Tumbling Target Satellite
2018
2018 Annual American Control Conference (ACC)
This would result in a singular Hessian matrix in the quadratic problemi.e. the minimization of the cost function. ...
grasping mechanism; couple the target and chaser, effectively into a rigid, single spacecraft, in what is called a hard dock [42] . ...
A. Double Pendulum Recall from chapter 5, the double pendulum problem is a well-studied problem frequently used as a sample problem in literature. ...
doi:10.23919/acc.2018.8431558
dblp:conf/amcc/BucknerL18
fatcat:lbz67cdkt5frrpqreumsgs3eda
Methods of Hydrological Basin Comparison
1994
Geographical Journal
The ERB Inventory (ICARE) provides a computer database of nearly 100 basins, including their physical characteristics, instrumentation, data, research aims and key publications. ...
The ERB Inventory has reached a level of completeness where it can be used operationally by scientists to exchange and analyse research results. ...
The contribution from the last author has been also through a Grant from the Department d'Ensenyament de la Generalitat de Catalunya. ...
doi:10.2307/3059624
fatcat:jbexvxfuojagveztu4m32giibq
Placing problems from phylogenetics and (quantified) propositional logic in the polynomial hierarchy
[article]
2021
There are many interesting questions revolving around display sets and one is often interested in the computational complexity of the considered problems for particular classes of networks. ...
They can be considered as a structure that embeds a whole set of phylogenetic trees which is called the display set of the network. ...
In addition, the authors would like to thank Britta Dorn for insightful comments on a draft containing the construction of an unsatisfiable instance of Monotone 3-Sat-(2, 2). ...
doi:10.15496/publikation-60076
fatcat:odzek7qjy5cdxn4zop3ffn54cy
On the Eve of Artificial Minds
2015
I suggest that rapid growth in robotics, brain-like computing, new theories of large-scale functional modeling, and financial resources directed at this goal means that there will soon be a significant ...
I highlight some barriers to the development of this kind of technology, and discuss the ethical and philosophical consequences of such a development. ...
Many of the ideas given here were developed in discussion with members of the CNRG Lab, participants at the Telluride workshops, and my collaborators on ONR grant N000141310419 (PIs: Kwabena Boahen and ...
doi:10.15502/9783958570252
fatcat:suw7tryu5be3zn7wiwoq22azvm
Complexity of Solution of Simultaneous Multivariate Polynomial Equations
[article]
2021
pre-print
The minimality of Rabin basis allows us to prove exponential lower bounds for the space complexity of an algebraic proof of certification, for a specific computational problem in the computational complexity ...
The proposed original reduction algorithm achieves the required task, via computation of determinants of parametric Sylvester matrices, and produces a Rabin basis, which is shown to be minimal, when two ...
An algebraic proof of validity of the output of the PSPACE algorithm for this problemi.e., proof of certification for the validity of its output as a specific indicator of an algebraic expressionwould ...
doi:10.14445/22315373/ijmtt-v67i5p503
arXiv:2105.11971v1
fatcat:heknu4gx6fghnab6pzp3gb7rey
How do teachers deal with uncertainty in relation to working with children with autism in the context of the introduction of a new technology tool?
2012
The context of teachers working with children with autism combined with the introduction of a technology innovation is viewed as a fertile crucible for exploring teacher uncertainty. ...
In tandem, a psycho-social interpretivist approach to understanding the teachers' work in the classroom, based on infant observation, is developed and applied to a detailed consideration of the work of ...
Lynne notes that Tom doesn't, as in a number of other situations, see this as a problemi.e. in his own terms he is happy to go to bed late and be tired the next day. ...
doi:10.15123/pub.1867
fatcat:n7vhluckprbn7im33vtbjchhxa
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