Št. zadetkov: 286
Video in druga učna gradiva
Oznake:
computer science;machine learning;linear models;semi-supervised learning
Linear discriminant analysis (LDA) is a commonly used method for dimensionality reduction. Despite its successes, it has limitations under some situations, including the small sample size problem, the homoscedasticity assumption that different classes have the same Gaussian distribution, and its ina ...
Leto:
2009
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
Labeled data are needed for many machine learning applications but the amount available in some applications is scarce. Semi-supervised learning and multi-task learning are two of the approaches that have been proposed to alleviate this problem. In this paper, we seek to integrate these two approach ...
Leto:
2009
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;data mining;artificial intelligence
Distance metric learning plays a very crucial role in many data mining algorithms because the performance of an algorithm relies heavily on choosing a good metric. However, the labeled data available in many applications is scarce and hence the metrics learned are often unsatisfactory. In this paper ...
Leto:
2010
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;machine learning;active learning
Since labeling data is often both laborious and costly, the labeled data available in many applications is rather limited. Active learning is a learning approach which actively selects unlabeled data points to label as a way to alleviate the labeled data deficiency problem. In this paper, we extend ...
Leto:
2011
Vir:
videolectures.net
Ye Ning ,
Ritwik Kumar ,
Edison Song Han ,
Yu Zhang ,
Yi Li ,
Peng Yang ,
Sung Won Park ,
Edward Hsiao ,
Jiwen Lu ,
Yusuke Sugano ,
Albert C. S. Chung ,
Rama Chellappa ,
Qiang Zhang ,
Jian Sun ,
Mario Rojas ,
Ioannis A. Kakadiaris ,
Michel Valstar ,
Tomas Simon ,
Qinfeng Shi
Video in druga učna gradiva
Oznake:
computer science;computer vision
Leto:
2010
Vir:
videolectures.net
Izvirni znanstveni članek
Oznake:
fractional Schrödinger equations;critical Sobolev exponent;Ambrosetti-Rabinowitz condition;concentration compactness principle;
This paper is concerned with the following fractional Schrödinger equations involving critical exponents: ▫$$(-\Delta)^\alpha u + V(x)u = k(x)f(u) + \lambda|u|^{2_\alpha^\ast-2}u \quad \text{in} \; \mathbb{R}^N,$$▫ where ▫$(-\Delta)^\alpha$▫ is the fractional Laplacian operator with ▫$\alpha \in (0, ...
Leto:
2016
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
kooperacija;dilema zapornika;mnogo-delčna optimizacija;naključne strategije;cooperation;prisoner's dilemma;particle swarm optimization;stochastic strategies;
We study the evolution of cooperation among selfish individuals in the stochastic strategy spatial prisoner's dilemma game. We equip players with the particle swarm optimization technique, and find that it may lead to highly cooperative states even if the temptations to defect are strong. The concep ...
Leto:
2011
Vir:
Fakulteta za naravoslovje in matematiko (UM FNM)
Izvirni znanstveni članek
Oznake:
evolucijske igre;dilema zapornika;koevolucija;kompleksne mreže;prijateljstvo;evolutionary games;prisoner's dilemma;coevolution;complex networks;friendship;
We study the evolution of cooperation in the spatial prisoner's dilemma game where players are allowed to establish new interactions with others. By employing a simple coevolutionary rule entailing only two crucial parameters, we find that different selection criteria for the new interaction partner ...
Leto:
2011
Vir:
Fakulteta za naravoslovje in matematiko (UM FNM)
Izvirni znanstveni članek
Oznake:
atmospheric refractivity;COSMIC;GPS radio occultation;radiosonde;temporal and spatial distribution;
Atmosferska refrakcija je odvisna od temperature, tlaka in vodne pare. Iz GNSS ocenjena refrakcija ima dovolj dobro vertikalno ločljivost in točnost, da jo lahko vključimo v numerične modele napovedi vremena ter uporabimo v meteoroloških in klimatskih raziskavah. V študiji smo ovrednotili razlike me ...
Leto:
2020
Vir:
Fakulteta za gradbeništvo in geodezijo (UL FGG)
Izvirni znanstveni članek
Oznake:
rotor dynamics;external incentives;finite element method;bearing;gears;
The dynamic response of the rotor system in a ring die granulator is complex and difficult to solve when it operates under joint external, support and gear mesh forces. To solve this problem, a finite element method and extrusion theory was applied in this study to develop a dynamic coupling model f ...
Leto:
2023
Vir:
Fakulteta za strojništvo (UL FS)