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A new constructive heuristic driven by machine learning for the traveling salesman problem

Mele, Umberto Junior ; Gambardella, Luca Maria ; Montemanni, Roberto

In: Algorithms, 2021, vol. 14, no. 9, p. 25

Recent systems applying Machine Learning (ML) to solve the Traveling Salesman Problem (TSP) exhibit issues when they try to scale up to real case scenarios with several hundred vertices. The use of Candidate Lists (CLs) has been brought up to cope with the issues. A CL is defined as a subset of all the edges linked to a given vertex such that it contains mainly edges that are believed to be...

Vitamin D status in adolescents during COVID-19 pandemic : a cross-sectional comparative study

Meoli, Martina ; Muggli, Franco ; Lava, Sebastiano A. G. ; Bianchetti, Mario G. ; Agostoni, Carlo ; Kocher, Claudine ; Bührer, Thomas W. ; Ciliberti, Letizia ; Simonetti, Giacomo D. ; Milani, Gregorio P.

In: Nutrients, 2021, vol. 13, no. 5, p. 7

Vitamin D has been claimed to be effective in the response to infections, including the respiratory syndrome coronavirus 2 (SARS-CoV-2). It is supposed that lockdown measures and fear of SARS-CoV-2 infection might reduce vitamin D levels through the modification of lifestyle. However, very few data exist on the association between lockdown measures and vitamin D status in humans. For this...

Changes in autopsy rates among cancer patients and their impact on cancer statistics from a public health point of view: a longitudinal study from 1980 to 2010 with data from Cancer Registry Zurich

Bieri, Uwe ; Moch, Holger ; Dehler, Silvia ; Korol, Dimitri ; Rohrmann, Sabine

In: Virchows Archiv, 2015, vol. 466, no. 6, p. 637-643

Long-term physical activity is associated with reduced arterial stiffness in older adults: longitudinal results of the SAPALDIA cohort study

Endes, Simon ; Schaffner, Emmanuel ; Caviezel, Seraina ; Dratva, Julia ; Autenrieth, Christine S. ; Wanner, Miriam ; Martin, Brian ; Stolz, Daiana ; Pons, Marco ; Turk, Alexander ; Bettschart, Robert ; Schindler, Christian ; Künzli, Nino ; Probst-Hensch, Nicole ; Schmidt-Trucksäss, Arno

In: Age and Ageing, 2016, vol. 45, no. 1, p. 110-115

Associations between objective and self-reported physical activity and vitamin D serum levels in the US population

Wanner, Miriam ; Richard, Aline ; Martin, Brian ; Linseisen, Jakob ; Rohrmann, Sabine

In: Cancer Causes & Control, 2015, vol. 26, no. 6, p. 881-891

Mediterranean diet and mortality in Switzerland: an alpine paradox?

Vormund, Kerstin ; Braun, Julia ; Rohrmann, Sabine ; Bopp, Matthias ; Ballmer, Peter ; Faeh, David

In: European Journal of Nutrition, 2015, vol. 54, no. 1, p. 139-148

Live Virus Vaccines in Transplantation: Friend or Foe?

Verolet, Charlotte ; Posfay-Barbe, Klara

In: Current Infectious Disease Reports, 2015, vol. 17, no. 4, p. 1-11

Children with mental versus physical health problems: differences in perceived disease severity, health care service utilization and parental health literacy

Dey, Michelle ; Wang, Jen ; Jorm, Anthony ; Mohler-Kuo, Meichun

In: Social Psychiatry and Psychiatric Epidemiology, 2015, vol. 50, no. 3, p. 407-418

Comparative Genomics of Community-Associated Methicillin-Resistant Staphylococcus aureus Shows the Emergence of Clone ST8-USA300 in Geneva, Switzerland

Von Dach, Elodie ; Diene, Seydina M. ; Fankhauser, Carolina ; Schrenzel, Jacques ; Harbarth, Stephan ; François, Patrice

In: The Journal of Infectious Diseases, 2016, vol. 213, no. 9, p. 1370-1379

Ampicillin-resistant Haemophilus influenzae isolates in Geneva: serotype, antimicrobial susceptibility, and β-lactam resistance mechanisms

Cherkaoui, A. ; Diene, S. ; Emonet, S. ; Renzi, G. ; Francois, P. ; Schrenzel, J.

In: European Journal of Clinical Microbiology & Infectious Diseases, 2015, vol. 34, no. 10, p. 1937-1945