Search results for " algorithms"
showing 10 items of 612 documents
A Branch-and-Cut method for the Capacitated Location-Routing Problem
2011
International audience; Recent researches in the design of logistic networks have shown that the overall distribution cost may be excessive if routing decisions are ignored when locating depots. The Location-Routing Problem (LRP) overcomes this drawback by simultaneously tackling location and routing decisions. The aim of this paper is to propose an exact approach based on a Branch-and-Cut algorithm for solving the LRP with capacity constraints on depots and vehicles. The proposed method is based on a zero-one linear model strengthened by new families of valid inequalities. The computational evaluation on three sets of instances (34 instances in total), with 5–10 potential depots and 20–88 …
On the Non-Intrusive Load Monitoring in dwellings: a feasibility perspective
2021
The oncoming modernization process of the power grids, driven above all by decarbonisation objectives and the continuous improvement of digital technologies, is encouraging active participation in the electricity market by consumers through the Demand-Response mechanism. From this perspective, the introduction of smart meters and energy consumption monitoring devices plays a fundamental role, being able to give benefits to consumers, suppliers and the electricity grid itself. This paper proposes a supervised method of non-intrusive load monitoring (NILM) based on the recognition of patterns in the time domain with the Dynamic Time Warping algorithm which is suitable for low-cost smart meter…
An Online Time Warping based Map Matching for Vulnerable Road Users’ Safety
2018
International audience; High penetration rate of Smartphones and their increased capabilities to sense, compute, store and communicate have made the devices vital components of intelligent transportation systems. However, their GPS positions accuracy remains insufficient for a lot of location-based applications especially traffic safety ones. In this paper, we developed a new algorithm which is able to improve smartphones GPS accuracy for vulnerable road users' traffic safety. It is a two-stage algorithm: in the first stage GPS readings obtained from smartphones are passed through Kalman filter to smooth deviated reading. Then an adaptive online time warping based map matching is applied to…
ES konkurences tiesību regulējums un pierādīšanas standarts aizliegtu vienošanās lietās, kurās izmantota cenu veidošanas algoritmu programmatūra
2021
Eiropas Komisija ir paudusi uzskatu, ka Eiropas Savienībā tiesību regulējumam ir jābūt vienādam, “likvidējot jebkādu mākslīgu nošķīrumu starp tradicionālo un digitālo tirgu”. Šis maģistra darbs pētī jautājumu, vai Eiropas konkurences tiesības paredz iespēju pierādīt aizliegtas vienošanās, karteļa esamību tad, ja tiek izmantoti viedie cenu algoritmi un nav pierādījumu par tradicionālu komunikāciju starp tirgus dalībniekiem. Analizējot judikatūru par LESD 101 (1) punktu, īpaši pievēršoties lietām, kurās pierādījumi vākti e-vidē, tiek secināts ar kādiem ierobežojumiem būtu jāsastopas izmeklējošajai iestādei, piemēram, EK, mēģinot pierādīt tāda karteļa esamību, kas darbojas uz algoritmu pamata.…
Detection of Ventricular Fibrillation Using the Image from Time-Frequency Representation and Combined Classifiers without Feature Extraction
2018
Due the fact that the required therapy to treat Ventricular Fibrillation (V F) is aggressive (electric shock), the lack of a proper detection and recovering therapy could cause serious injuries to the patient or trigger a ventricular fibrillation, or even death. This work describes the development of an automatic diagnostic system for the detection of the occurrence of V F in real time by means of the time-frequency representation (T F R) image of the ECG. The main novelties are the use of the T F R image as input for a classification process, as well as the use of combined classifiers. The feature extraction stage is eliminated and, together with the use of specialized binary classifiers, …
Automatic optimization of multichip RFID tags
2012
The automatic optimization is proposed of the passive RF part of RFID, with special attention to multi-chip tags, and to the novel concept of RFID grids. Performance metrics follows a recent all-comprehensive approach. The proposed approach employs a Genetic Algorithm-based optimization, and an efficient electromagnetic problem parameterization and solution strategy. Resulting structures, while non-intuitive in shape, exhibit enhanced performance.
"Efficiency in the SR3$\ell$ region with $\ell=$$\tau$" of "Search for trilepton resonances from chargino and neutralino pair production in $\sqrt{s}…
2021
The combined $\tilde\chi^{\pm}_{1}\tilde\chi^{\mp}_{1} + \tilde\chi^{\pm}_{1}\tilde\chi^{0}_{1}$ reconstruction efficiencies in the SR3$\ell$ region. Results are given as a function of $\tilde\chi^{\pm}_{1}/\tilde\chi^{0}_{1}$ mass and branching fraction to Z bosons, and are derived separately when requiring that the charged-lepton decays of $\tilde\chi^{\pm}_{1}/\tilde\chi^{0}_{1}$ are into $\tau$-leptons only
"Triangle, Efficiency in SR3$\ell$, $\ell=(e, \mu, \tau)$" of "Search for trilepton resonances from chargino and neutralino pair production in $\sqrt…
2021
The combined $\tilde\chi^{\pm}_{1}\tilde\chi^{\mp}_{1} + \tilde\chi^{\pm}_{1}\tilde\chi^{0}_{1}$ reconstruction efficiencies in the SR3$\ell$ region for $\tilde\chi^{\pm}_{1}/\tilde\chi^{0}_{1}$ masses of 700 GeV. Results are given as a function of the branching fractions to Z and Higgs bosons
"Triangle, Efficiency in SR4$\ell$, $\ell=(e, \mu, \tau)$" of "Search for trilepton resonances from chargino and neutralino pair production in $\sqrt…
2021
The combined $\tilde\chi^{\pm}_{1}\tilde\chi^{\mp}_{1} + \tilde\chi^{\pm}_{1}\tilde\chi^{0}_{1}$ reconstruction efficiencies in the SR4$\ell$ region for $\tilde\chi^{\pm}_{1}/\tilde\chi^{0}_{1}$ masses of 700 GeV. Results are given as a function of the branching fractions to Z and Higgs bosons
"Efficiency in the SRFR region with $\ell=$$\tau$" of "Search for trilepton resonances from chargino and neutralino pair production in $\sqrt{s}$ = 1…
2021
The combined $\tilde\chi^{\pm}_{1}\tilde\chi^{\mp}_{1} + \tilde\chi^{\pm}_{1}\tilde\chi^{0}_{1}$ reconstruction efficiencies in the SRFR region. Results are given as a function of $\tilde\chi^{\pm}_{1}/\tilde\chi^{0}_{1}$ mass and branching fraction to Z bosons, and are derived separately when requiring that the charged-lepton decays of $\tilde\chi^{\pm}_{1}/\tilde\chi^{0}_{1}$ are into $\tau$-leptons only