Search results for "LMA"
showing 10 items of 3320 documents
Säädynmukaista elämää? : henkilökohtaiset lähteet 1600-luvun ihmisten maailmankuvan heijastajina
2000
Spherically symmetric inhomogeneous cosmological models
2014
Portaalidosimetrian käyttö sädehoitokiihdyttimen laadunvarmistuksessa
2009
Lukion sähköopin ja sähkömagnetismin opetusmateriaalien tietorakenteiden kartoittaminen ja kehitysehdotusten etsiminen
2011
Sähköopin ja sähkömagnetismin aihekokonaisuudet ovat lukion kurssien tuntimääriin nähden raskaita ja tietoa on hyvin paljon. Työn tavoitteena oli selvittää voisiko lukion sähköopin ja sähkömagnetismin tietorakenteita ja samalla koko aihekokonaisuuksia keventää. Työssä tarkastellaan käsitekarttoja käyttäen huomattavan laajoja aihekokonaisuuksia, tarkoituksena luoda pohjaa opintokokonaisuuksien edelleenkehittämiselle. Kokonaisuutena työ tarjoaa yksittäiselle opettajalle ideoita oman opetuksensa päivittämiseen ja laajemmin mahdollisuuksia oppimateriaalien kehittämiselle. Työn laaja tarkastelupohja lisää tulosten soveltamismahdollisuuksia. Tietorakenteita pyrittiin kartoittamaan koottujen käsit…
Coexistence of hidden attractors and multistability in counterexamples to the Kalman conjecture
2019
The Aizerman and Kalman conjectures played an important role in the theory of global stability for control systems and set two directions for its further development – the search and formulation of sufficient stability conditions, as well as the construction of counterexamples for these conjectures. From the computational perspective the latter problem is nontrivial, since the oscillations in counterexamples are hidden, i.e. their basin of attraction does not intersect with a small neighborhood of an equilibrium. Numerical calculation of initial data of such oscillations for their visualization is a challenging problem. Up to now all known counterexamples to the Kalman conjecture were const…
4-5 gadus vecu bērnu sīkās pirkstu motorikas sekmēšana darbā ar tekstilmateriāliem
2022
Kvalifikācijas darbs izstrādāts par tēmu “4-5 gadus vecu bērnu sīkās pirkstu motorikas sekmēšana darbā ar tekstilmateriāliem” Kvalifikācijas darba autore Sanda Krugļikova Kvalifikācijas darba vadītāja Māra Urdziņa - Deruma Pētījuma mērķis teorētiski un praktiski izpētīt pirkstu muskulatūras sekmēšanas iespējas 4-5 gadus veciem bērniem pirmsskolā darbā ar tekstilmateriāliem. Pētījuma jautājums: Kādi nosacījumi jāievēro darbā ar tekstilmateriāliem, lai veicinātu 4-5 gadus vecu bērnu sīkās pirkstu motorikas attīstību. Pētījumā izmantotas metodes: literatūras analīze, pedagoģiskā novērošana, pedagoģiskā izmēģinājuma darbība, bērnu darbu analīze un aprakstošā statistikas metode. Pirmajā daļā ana…
Surrogate-assisted evolutionary multiobjective shape optimization of an air intake ventilation system
2017
We tackle three different challenges in solving a real-world industrial problem: formulating the optimization problem, connecting different simulation tools and dealing with computationally expensive objective functions. The problem to be optimized is an air intake ventilation system of a tractor and consists of three computationally expensive objective functions. We describe the modeling of the system and its numerical evaluation with a commercial software. To obtain solutions in few function evaluations, a recently proposed surrogate-assisted evolutionary algorithm K-RVEA is applied. The diameters of four different outlets of the ventilation system are considered as decision variables. Fr…
A Network-Based Framework for Mobile Threat Detection
2018
Mobile malware attacks increased three folds in the past few years and continued to expand with the growing number of mobile users. Adversary uses a variety of evasion techniques to avoid detection by traditional systems, which increase the diversity of malicious applications. Thus, there is a need for an intelligent system that copes with this issue. This paper proposes a machine learning (ML) based framework to counter rapid evolution of mobile threats. This model is based on flow-based features, that will work on the network side. This model is designed with adversarial input in mind. The model uses 40 timebased network flow features, extracted from the real-time traffic of malicious and…
Support vector machine integrated with game-theoretic approach and genetic algorithm for the detection and classification of malware
2013
Abstract. —In the modern world, a rapid growth of mali- cious software production has become one of the most signifi- cant threats to the network security. Unfortunately, wides pread signature-based anti-malware strategies can not help to de tect malware unseen previously nor deal with code obfuscation te ch- niques employed by malware designers. In our study, the prob lem of malware detection and classification is solved by applyin g a data-mining-based approach that relies on supervised mach ine- learning. Executable files are presented in the form of byte a nd opcode sequences and n-gram models are employed to extract essential features from these sequences. Feature vectors o btained are…
Video Streaming and Internalized Surveillance
2018
This paper aims to develop knowledge about the complicated ways in which the modern individual uses surveillance (techniques) and the ways surveillance uses the individual. My observational analysis of a videostreaming community reveals the central role that surveillance plays in participating and becoming visible in an online environment. The results show that through disciplinary and lateral surveillance, participants produced context-defined I-narrations and formed themselves following the normative judgment of the environment. The same mechanism may be observed in other videostreaming social media environments and the modern social media-saturated society in general. This is an inconspi…