21. A map-matching algorithm dealing with sparse cellular fingerprint observationsAndrea Dalla Torre, Paolo Gallo, Donatella Gubiani, Chris Marshall, Angelo Montanari, Federico Pittino, Andrea Viel, 2019, izvirni znanstveni članek Opis: The widespread availability of mobile communication makes mobile devices a resource for the collection of data about mobile infrastructures and user mobility. In these contexts, the problem of reconstructing the most likely trajectory of a device on the road network on the basis of the sequence of observed locations (map-matching problem) turns out to be particularly relevant. Different contributions have demonstrated that the reconstruction of the trajectory of a device with good accuracy is technically feasible even when only a sparse set of GNSS positions is available. In this paper, we face the problem of coping with sparse sequences of cellular fingerprints. Compared to GNSS positions, cellular fingerprints provide coarser spatial information, but they work even when a device is missing GNSS positions or is operating in an energy saving mode. We devise a new map-matching algorithm, that exploits the well-known Hidden Markov Model and Random Forests to successfully deal with noisy and sparse cellular observations. The performance of the proposed solution has been tested over a medium-sized Italian city urban environment by varying both the sampling of the observations and the density of the fingerprint map as well as by including some GPS positions into the sequence of fingerprint observations.
Ključne besede: Map-matching algorithm, trajectory, cellular fingerprint, Hidden Markov Model
Objavljeno v RUNG: 11.06.2019; Ogledov: 3375; Prenosov: 97
 Celotno besedilo (3,93 MB) |
22. Map matching with sparse cellular fingerprint observationsAndrea Viel, Donatella Gubiani, Paolo Gallo, Angelo Montanari, Andrea Dalla Torre, Federico Pittino, Chris Marshall, 2018, objavljeni znanstveni prispevek na konferenci Ključne besede: map matching, fingerprint, trajectories
Objavljeno v RUNG: 09.12.2018; Ogledov: 3681; Prenosov: 0
Gradivo ima več datotek! Več... |
23. Učinki uvajanja koncepta krožnega gospodarstva na razvoj občine KočevjeAndrea Torroni, 2018, magistrsko delo Opis: Magistrsko delo opredeli koncept krožnega gospodarstva kot trajnostni razvoj v aktualnem času in prostoru in ga utemelji na konkretnem primeru implementacije v občini Kočevje. V literaturi najdemo različne opredelitve krožnega gospodarstva, ki pa ne zajamejo njegovega velikega potenciala v celoti. Mnoge definicije se dotikajo predvsem recikliranja odpadkov, ki pa je lahko zgolj sestavni del koncepta in kot takšen ne zajema vseh okoljskih, ekonomskih in socialnih momentov. Analiza implementacije krožnega gospodarstva v občini Kočevje, ki temelji na gozdno-lesni predelovalni verigi celo pokaže, da recikliranje ni nujno ključni element krožnega gospodarstva. Ključno je, da koncept temelji na zapiranju materialnih in ekonomskih zank na temelju endogenih potencialov območja, ki se manifestirajo prav tam z vsemi multiplikativnimi družbeno-socialnimi učinki.
Predstavili in primerjali smo statistične podatke, ki se nanašajo na uvedbo novega koncepta ‒ med različnimi panogami s poudarkom na gozdarstvu in med različnimi lokacijami z ozirom na Kočevje. Izvedli smo analizo prvih treh let delovanja javne gospodarske družbe Kočevski les, ki jo je Občina Kočevje ustanovila leta 2015 in ji dodelila vlogo koordinatorja krožnega gospodarstva. Analiza je pokazala mnoge pozitivne učinke: vzdržno finančno poslovanje, povečanje koristi za občinski proračun, boljše poslovanje lokalnih v krožno gospodarstvo vključenih deležnikov, ohranjanje obstoječih in ustvarjanje novih zelenih delovnih mest, informiranje ter vključevanje lokalnega prebivalstva in boljše ter trajnostno izkoriščanje občinskih potencialov. Na primeru konkretne občine smo pokazali, da prehajanje linearnega v krožno gospodarstvo s primernim organizatorjem lahko uspešno usmeri lokalni razvoj na pot proti trajnosti, ki temelji na lokalnih potencialih.
Ključne besede: krožno gospodarstvo, trajnostni razvoj, gozdno-lesna predelovalna veriga, Kočevje
Objavljeno v RUNG: 29.11.2018; Ogledov: 5406; Prenosov: 198
Celotno besedilo (1,83 MB) |
24. Dealing with network changes in cellular fingerprint positioning systemsAndrea Viel, Paolo Gallo, Angelo Montanari, Donatella Gubiani, Andrea Dalla Torre, Federico Pittino, Chris Marshall, 2017, objavljeni znanstveni prispevek na konferenci Opis: Besides being a fundamental infrastructure for communication, cellular networks are exploited for positioning through signal fingerprinting. Maintaining the fingerprint database consistent and up-to-date is a challenging task in many fingerprint positioning systems, e.g., in those populated by a crowd-sourcing effort. To this end, detecting and tracking the changes in the configurations of cellular networks over time is recognized as a relevant problem. In this paper, we show that to cope with this problem we can successfully exploit information provided by Timing Advance (TA). As a by-product, we prove that TA can improve the fingerprint candidate selection phase, reducing the number of fingerprints to provide as input to positioning algorithms. The effectiveness of the proposed improvements has been tested on a fingerprint positioning system with a large fingerprint dataset collected over a period of 2 years.
Ključne besede: fingerprint positioning systems, cellular communication networks, network changes
Objavljeno v RUNG: 13.06.2018; Ogledov: 3963; Prenosov: 0
Gradivo ima več datotek! Več... |
25. Mercury in the unconfined aquifer of the Isonzo/Soča River alluvial plain downstream from the Idrija mining areaAndrea Cerovac, Stefano Covelli, Andrea Emili, Elena Pavoni, Elisa Petranich, Asta Gregorič, Janko Urbanc, Enrico Zavagno, Luca Zini, 2018, izvirni znanstveni članek Ključne besede: aquifer, groundwater, mercury
Objavljeno v RUNG: 03.01.2018; Ogledov: 3686; Prenosov: 0
Gradivo ima več datotek! Več... |
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27. Pursuing the stabilisation of crystalline nanostructured magnetic manganites through a green low temperature hydrothermal synthesisArianna Minelli, Paolo Dolcet, Stefano Diodati, Sandra Gardonio, Claudia Innocenti, Denis Badocco, Stefano Gialanella, Paolo Pastore, Luciano Pandolfo, Andrea Caneschi, Angela Trapanati, Silvia Gross, 2017, izvirni znanstveni članek Opis: A quick, easy and green water-based synthesis protocol involving coprecipitation of oxalates combined with hydrothermal treatment resulted in the crystallisation of nanostructured manganites at a relatively low temperature (180 °C). The subcritical hydrothermal approach was shown to play a key role in stabilising phases which are generally achieved at much higher temperatures and under harsher conditions, thus disclosing an exciting alternative for their synthesis. Through this mild wet chemistry approach, the compounds CuMnO2, ZnMn2O4 and ZnMnO3 were synthesised as nanocrystalline powders. Noticeably, the optimised route proved to be effective in stabilising the exotic polymorph cubic spinel ZnMnO3 in pure form. This is particularly notable, as very few records concerning this compound are available in the literature. The compounds were fully characterised from compositional, structural, morphological and magnetic points of view.
Ključne besede: nanostructured manganites, low temperature wet chemistry synthesis
Objavljeno v RUNG: 28.03.2017; Ogledov: 4352; Prenosov: 0
Gradivo ima več datotek! Več... |
28. The On-Site Analysis of the Cherenkov Telescope ArrayAndrea Bulgarelli, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), On-Site Analysis of CTA, latency and sensitivity requirements, prototyping activities
Objavljeno v RUNG: 16.02.2017; Ogledov: 4178; Prenosov: 370
Celotno besedilo (268,92 KB) |
29. Parallel waveform extraction algorithms for the Cherenkov Telescope Array Real-Time AnalysisAndrea Zoli, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), algorithms for the CTA real-time analysis, parallel waveform extraction
Objavljeno v RUNG: 16.02.2017; Ogledov: 4239; Prenosov: 248
Celotno besedilo (151,69 KB) |
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