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Relaxation and self-supervised machine learning for the hybrid flow shop assignment problem

Tonnius, Annika; Martin, Robert J. - In: Logistics Research 16 (2023) 1, pp. 1-16

We present an approximation method for the hybrid flow shop scheduling problem based on relaxation and machine learning … techniques. Our model combines a suitable relaxation of the objective function to a continuous solution space with a self …

Persistent link: https://www.econbiz.de/10014542226

Risk return trade-off in relaxed risk parity portfolio optimization

Gambeta, Vaughn; Kwon, Roy - In: Journal of Risk and Financial Management 13 (2020) 10, pp. 1-28

This paper formulates a relaxed risk parity optimization model to control the balance of risk parity violation against the total portfolio performance. Risk parity has been criticized as being overly conservative and it is improved by re-introducing the asset expected returns into the model and...

Persistent link: https://www.econbiz.de/10012611461

PSYCHOLOGICAL EFFECTS OF AQUATIC ACTIVITY IN HYDROTHERAPY PROGRAMS

Stan, Amelia Elena - In: Marathon 5 (2013) 2, pp. 205-209

The objectives of the hydrotherapy programs are the recovery and relaxation of the patient. Traditional methods of on … gathered about relaxation techniques in water had a single result - the relaxation techniques through aquatic therapy lead to a …

Persistent link: https://www.econbiz.de/10010857686

Are you happy while you work?

Bryson, Alex; MacKerron, George - London School of Economics (LSE) - 2013

effects of working on two aspects of affect: happiness and relaxation. We find paid work is ranked lower than any of the other …

Persistent link: https://www.econbiz.de/10010745240

A NEW FORMULATION AND RELAXATION OF THE SIMPLE PLANT LOCATION PROBLEM

SHARMA, R. R. K.; MURALIDHAR, A. - In: Asia-Pacific Journal of Operational Research (APJOR) 26 (2009) 01, pp. 1-11

new relaxation of SPLP that is different from the already well known "strong" and "weak" relaxation of SPLP. It is shown … that the bound given by the new relaxation is worse than the bound given by "strong relaxation" of SPLP. However, a … numerical example illustrates that the bound given by the new relaxation can at times be better than the bound given by "weak …

Persistent link: https://www.econbiz.de/10005047129

Interatomic potential effects on dynamical heterogeneities in liquid SiO<Subscript>2</Subscript>

Hoang, V. V. - In: The European Physical Journal B - Condensed Matter and … 54 (2006) 3, pp. 291-297

Dynamical heterogeneities (DH) in low density liquid SiO<Subscript>2</Subscript> have been investigated by molecular dynamics (MD) method. Simulations were done in the basic cube under periodic boundary conditions containing 3000 particles with the pair interatomic potentials, which have a weak electrostatic...</subscript>

Persistent link: https://www.econbiz.de/10009280741

Coexistence of anomalous field effect and mesoscopic conductance fluctuations in granular aluminium

Delahaye, J.; Grenet, T.; Gay, F. - In: The European Physical Journal B - Condensed Matter and … 65 (2008) 1, pp. 5-19

Persistent link: https://www.econbiz.de/10009280973

Simulation study of polymorphism and diffusion anomaly for SiO<Subscript>2</Subscript> and GeO<Subscript>2</Subscript> liquid

Hung, P. K.; Hong, N. V. - In: The European Physical Journal B - Condensed Matter and … 71 (2009) 1, pp. 105-110

Persistent link: https://www.econbiz.de/10009281796

Anomalous electric-field effect and glassy behaviour in granular aluminium thin films: electron glass?

Grenet, T.; Delahaye, J.; Sabra, M.; Gay, F. - In: The European Physical Journal B - Condensed Matter and … 56 (2007) 3, pp. 183-197

thin films. An anomalous field effect and its slow relaxation are studied in some detail. The phenomenology is very similar …

Persistent link: https://www.econbiz.de/10009282036

Gel-forming patchy colloids and network glass formers: thermodynamic and dynamic analogies

Sciortino, F. - In: The European Physical Journal B - Condensed Matter and … 64 (2008) 3, pp. 505-509

Persistent link: https://www.econbiz.de/10009282525