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21.
22.
Assessing innovation potential in Slovene culinary events
Dejan Križaj, Eva Horvat, 2015, original scientific article

Keywords: systems thinking, tourism, complex systems, MODSIM, modeling, simulation
Published in RUP: 08.08.2016; Views: 2484; Downloads: 72
URL Link to full text

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Systems thinking on complex tourism systems
Tadeja Jere Jakulin, 2015, review article

Keywords: systems thinking, tourism, complex systems, MODSIM, modeling, simulation
Published in RUP: 08.08.2016; Views: 2883; Downloads: 69
URL Link to full text

24.
On the split structure of lifted groups
Aleksander Malnič, Rok Požar, 2016, original scientific article

Abstract: Let ▫$\wp \colon \tilde{X} \to X$▫ be a regular covering projection of connected graphs with the group of covering transformations ▫$\rm{CT}_\wp$▫ being abelian. Assuming that a group of automorphisms ▫$G \le \rm{Aut} X$▫ lifts along $\wp$ to a group ▫$\tilde{G} \le \rm{Aut} \tilde{X}$▫, the problem whether the corresponding exact sequence ▫$\rm{id} \to \rm{CT}_\wp \to \tilde{G} \to G \to \rm{id}$▫ splits is analyzed in detail in terms of a Cayley voltage assignment that reconstructs the projection up to equivalence. In the above combinatorial setting the extension is given only implicitly: neither ▫$\tilde{G}$▫ nor the action ▫$G\to \rm{Aut} \rm{CT}_\wp$▫ nor a 2-cocycle ▫$G \times G \to \rm{CT}_\wp$▫, are given. Explicitly constructing the cover ▫$\tilde{X}$▫ together with ▫$\rm{CT}_\wp$▫ and ▫$\tilde{G}$▫ as permutation groups on ▫$\tilde{X}$▫ is time and space consuming whenever ▫$\rm{CT}_\wp$▫ is large; thus, using the implemented algorithms (for instance, HasComplement in Magma) is far from optimal. Instead, we show that the minimal required information about the action and the 2-cocycle can be effectively decoded directly from voltages (without explicitly constructing the cover and the lifted group); one could then use the standard method by reducing the problem to solving a linear system of equations over the integers. However, along these lines we here take a slightly different approach which even does not require any knowledge of cohomology. Time and space complexity are formally analyzed whenever ▫$\rm{CT}_\wp$▫ is elementary abelian.
Keywords: algorithm, abelian cover, Cayley voltages, covering projection, graph, group extension, group presentation, lifting automorphisms, linear systems over the integers, semidirect product
Published in RUP: 15.10.2015; Views: 2674; Downloads: 157
.pdf Full text (422,56 KB)

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Fuzzy urban traffic signal control - an overview
Alenka Malej, Andrej Brodnik, 2007, original scientific article

Abstract: Izboljšanje sistemov za upravljanje mestne prometne signalizacije je eden cenovno najučinkovitejših načinov za izboljšanje prometnega pretoka skozi mrežo semaforiziranih križišč. Pri razvoju novih sistemov se zadnja tri leta poleg tradicionalnih metod, ki temeljijo na uporabi modelov prometnega pretoka, čedalje več uporabljajo nove tehnologije, ki vključujejo uporabo umetne inteligence. Raziskave so pokazale učinkovitost metahevrističnih metod. Posebna mehka logika, tudi v kombinaciji z optimizacijskimi metodami, ponuja fleksibilnost, prilagodljivost, upravljanje pri netočnih ingormacijah in v konfliktnih situacijah. Naredili smo pregled raziskav s tega področja
Keywords: prometna signalizacija, mehka logika, hibridni sistemi, porazdeljeno upravljanje, traffic signal control, hybrid systems, fuzzy logic, distributed control
Published in RUP: 10.07.2015; Views: 3852; Downloads: 53
URL Link to full text

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Quality management systems in higher education
Armand Faganel, Slavko Dolinšek, 2005, published scientific conference contribution

Keywords: management systems, quality, European Quality Award, higher education
Published in RUP: 15.10.2013; Views: 2832; Downloads: 77
URL Link to full text

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