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Señales y Sistemas
Señales y Sistemas
Señales y Sistemas
Raymar Ortega
MDA HW2: Principial components analysis and Canonical correlation analysis
MDA HW2: Principial components analysis and Canonical correlation analysis
Principal Components Analysis (PCA) and Canonical Correlation Analysis (CCA) are among the methods used in Multivariate Data Analysis. PCA is concerned with explaining the variance-covariance structure of a set of variables through a few linear combinations of these variables. Its general objectives are data reduction and interpretation. CCA seeks to identify and quantify the associations between two sets of variables i.e Pulp fibres and Paper variables.PCA shows that the first PC already exceeds 90% of the total variability. According to the proportion of variability explained by each canonical variable , the results suggest that the first two canonical correlations seem to be sufficient to explain the structure between Pulp and Paper characteristics with 98.86%. Despite the fact that the first the two canonical variables keep 98% of common variability, 78% was kept in the pulp fiber set and about 94% of the paper set as a whole. In the proportion of opposite canonical variable,there were approximately 64% for the paper set of variables and 78% for the pulp fiber set of variables kept for the two respectively.
AGYAPONG ANTHONY ADOMAH
Handleiding voor RSA-krakers
Handleiding voor RSA-krakers
Achter de ontdekking van de RSA-codes zit heel wat mooie wiskunde, voornamelijk uit de getaltheorie. De wiskundige die onbewust hebben bijgedragen tot de ontdekking van de RSA-codes zijn Eratosthenes, Euclides, Fermat, Euler, Gauss, Bezout en Bachet. De wiskundigen die de RSA-codes bewust hebben ontdekt zijn Rivest, Shamir en Adleman. In deze cursus laten we zien welke bijdrage al deze wiskundigen hebben geleverd aan de codetheorie. We leggen eveneens uit hoe het RSA-codes-mechanisme werkt en hoe deze codes worden gekraakt. De softwarepakketten die hiervoor gebruikt worden zijn Derive (voor het didactische aspect) en Sage (voor de rekenkracht en voor het programmatorisch aspect)
Van den Broeck Luc
The incredible shrinking point chain
The incredible shrinking point chain
Wiskundecollega Pedro Tytgat ontdekte onlangs een merkwaardige applet op het internet. Op http://functionspace.org/topic/1638/opinion/7591 vond hij tussen een hele serie animated gifs een applet voor de krimpende puntenketting die meetkundig gezien niet veel meer doet dan het berekenen van het midden van een lijnstuk. Deze applet viel niet alleen op door haar meetkundige schoonheid maar ook door een korte discussie over een mogelijke verklaring via dominante eigenwaarden en eigenvectoren.De aangekondigde verklaring ontbrak echter op deze site. Korte tijd na de ontdekking van de stelling van de krimpende puntenketting kwam er een compacte maar geïnspireerde analyse van Dirk Danckaert. In dit verslag probeer ik zijn ideën iets breedvoeriger uit te schrijven.
Van den Broeck Luc
The Mathematics of Cryptography
The Mathematics of Cryptography
University Assignment
Joe Allen
Why it's good that Soulstealer Vayne is so hard to get - a statistical Analysis
Why it's good that Soulstealer Vayne is so hard to get - a statistical Analysis
I analyzed the Hextech-Crafting in a Stochastic Simulation with 10 Million Players and found that you're going to make more Riot Points than you spend (in value) and thats without counting Champs. I've made some assumptions, which can be found down in the paper itself for those interested. For everyone else: If you're trying to maximize your RP-Net-Worth stack up on Hextech Chests.
WORST BRUISER EU
TTIC 31020 : Problem Set 1_1
TTIC 31020 : Problem Set 1_1
TTIC 31020 : Problem Set 1
Maria Hyun
Teorijska pitanja iz Booleove algebre
Teorijska pitanja iz Booleove algebre
Ovde je samo postavka pitanja koja sam prikupio po raznim rokovima. Ako naðete da se neka pitanja ponavljaju ili da rešenje nekih pitanja nije tačno, javite mi.
Aleksandar Ilić
Involutory Property of the Discrete Hartley Transform
Involutory Property of the Discrete Hartley Transform
Discret Hartley Transform is a unitary transform although its proof is hard to find in the Web. This short note explains that the Discrete Hartley Transform is an involution, which implies that this transform is unitary indeed.
Frank the Bunny

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