operations-research Questions

1

Solved

I study papers on link prediction in knowledge networks. Authors usually report "Hits@k". I wonder how to calculate hits@k and what does it mean about the model and the results?
Orinasal asked 11/11, 2019 at 6:14

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Solved

I have some troubles regarding a linear program I alreday solved and use excel but now i want to do it in r/python beacuse I already reach excels and the solvers limits. Therefore I am asking for h...
Immuno asked 17/10, 2019 at 13:56

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Solved

I am currently evaluating googles or-tools and just noticed that it's not really a solver on its own but mainly an interface to other solvers. What I'd like to know is which solvers this framework ...

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I'm trying to solve a pretty basic optimization problem using SciPy. The problem is constrained and with variable bounds and I'm pretty sure it's linear. When I run the following code the executi...
Micronesia asked 20/5, 2019 at 13:46

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This is a part of the engine-log output that I get from a small-scale mixed integer linear optimization problem that I solved in CPLEX 12.7.0 Nodes Cuts/ Node Left Objective IInf Best Integer Be...
Yamamoto asked 31/3, 2017 at 9:13

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I was wondering when one would decide to resort to Reinforcement Learning to problems that have been previously tackled by mathematical optimisation methods - think the Traveling Salesman Problem o...

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I need an algorithm that would take n rectangles of any sizes, and calculate a rectangle big enough to fit them all, minimizing its area so the wasted area is minimum, and also returning the positi...
Zygotene asked 24/12, 2011 at 18:10

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Node Assignment Problem The problem I want to solve is to tessellate the map given with the Blue Nodes(Source Nodes) as given input points, Once I am able to do this I would like to see how many...
Nonproductive asked 29/11, 2011 at 17:6

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Solved

I am trying to generate an inverse Weibull distribution using parameters estimated from survreg in R. By this I mean I would like to, for a given probability (which will be a random number in a sma...
Katricekatrina asked 2/2, 2012 at 14:18

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Solved

Is there an open source alternative to Mosek? Basically, I'm looking for large scale convex optimization solver packages. Thanks! EDIT: Forgot to mention earlier, problem is non-linear; m...
Spiracle asked 13/7, 2010 at 20:32
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