Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Guido Lagos"'
Publikováno v:
Mathematical Geosciences. 54:711-743
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f02712d187f820ccb403c4bc2444e1e
https://doi.org/10.1007/s11004-021-09984-4
https://doi.org/10.1007/s11004-021-09984-4
Publikováno v:
Optimization and Engineering. 23:111-146
Mine planning optimization aims at maximizing the profit obtained from extracting valuable ore. Beyond its theoretical complexity—the open-pit mining problem with capacity constraints reduces to a knapsack problem with precedence constraints, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23399775a6876fc6688a37ed230c62f7
https://doi.org/10.1007/s11081-020-09557-0
https://doi.org/10.1007/s11081-020-09557-0
Autor:
Guido Lagos, Javiera Barrera
Publikováno v:
Extremes. 23:603-628
The Marshall-Olkin (MO) distribution has been considered a key model in reliability theory and in risk analysis, where it is used to model the lifetimes of dependent components or entities of a system and dependency is induced by "shocks" that hit on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb0d299a1063ab058bf5615e5bdfea60
https://doi.org/10.1007/s10687-020-00386-z
https://doi.org/10.1007/s10687-020-00386-z
Autor:
Guido Lagos, Javiera Barrera
Publikováno v:
WSC
In this paper we approximate the last, close-to-first, and what we call quantile failure times of a system, when the system-components’ failure times are modeled according to a Levy-frailty Marshall-Olkin (LFMO) distribution. The LFMO distribution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bcdc7a35ff439cc3edd5334ffba1c8f
https://doi.org/10.1109/wsc48552.2020.9383929
https://doi.org/10.1109/wsc48552.2020.9383929
Publikováno v:
Resources Policy. 72:102086
This research project developed an adaptive stochastic optimisation approach for multi-period production scheduling in open-pit mines under geological uncertainty, and compared it to an existing two-stage optimisation method. This new rolling-horizon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11bfa43027b664e7826eff0aefd4f66a
https://doi.org/10.1016/j.resourpol.2021.102086
https://doi.org/10.1016/j.resourpol.2021.102086
Autor:
Guido Lagos, A. B. Dieker
We study how to sample paths of a random walk up to the first time it crosses a fixed barrier, in the setting where the step sizes are independent and identically distributed with negative mean and have a regularly varying right tail. We introduce a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03ba060b6798c131d6ab77033cfdfc43
http://arxiv.org/abs/1703.00884
http://arxiv.org/abs/1703.00884
Publikováno v:
Electronic Notes in Discrete Mathematics. 37:15-20
Open-pit mining production planning is a risky problem: operation costs are considerable, many parameters are inherently subject to uncertainty and, moreover, the mining operation can only be done once. In this work we address uncertainty in the ore-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0c08db1033d9fb6cd33d2b1480e1e70
https://doi.org/10.1016/j.endm.2011.05.004
https://doi.org/10.1016/j.endm.2011.05.004
Publikováno v:
MIT Web Domain
In this paper we consider characterizations of the robust uncertainty sets associated with coherent and distortion risk measures. In this context we show that if we are willing to enforce the coherent or distortion axioms only on random variables tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c93d806d989574d6ca7fa35845f418c4
http://hdl.handle.net/1721.1/114888
http://hdl.handle.net/1721.1/114888