Browsing by Author "Ros-Roca, Xavier"
Now showing items 1-6 of 6
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Fusing mobile phone data with other data sources to generate input OD matrices for transport models
(Elsevier, 2018)
Conference lecture
Restricted access - publisher's policyOD matrices that describe mobility patterns provide major input to most transport analysis models. Since OD matrices are not yet directly observable, they are usually estimated indirectly. Data from new sources such as ... -
Fusing mobile phone data with other data sources to generate input OD matrices for transport models
(Elsevier, 2019)
Article
Open AccessOD matrices that describe mobility patterns provide major input to most transport analysis models. Since OD matrices are not yet directly observable, they are usually estimated indirectly. Data from new sources such as ... -
Investigating the performance of SPSA in simulation-optimization approaches to transportation problems
(2018)
Conference report
Open AccessWhile optimization models play a key role in transportation analysis, the objective function to be optimized, however, cannot always be defined analytically. It is therefore necessary to resort to non-differentiable ... -
Investigating the performance of SPSA in simulation-optimization approaches to transportation problems
(Elsevier, 2018-11)
Article
Open AccessWhile optimization models play a key role in transportation analysis, the objective function to be optimized, however, cannot be defined analytically. It is therefore necessary to resort to non-differentiable optimization ... -
Investigating the quality of SPSA and Spiess-like approaches forDynamic OD Matrix Estimation
(2018)
Conference report
Restricted access - publisher's policyDynamic OD Estimation is usually formulated as bi-level problem where the objective function can not be evaluated analytically and thus the formulation relies on non-differentiable optimization methods that usually pivot ... -
Notes on the measure of the structural similarity of OD matrices
(2018-12-07)
External research report
Open Access
