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von lustiz
12. Dez 2012 12:11
Forum: Computer Vision 2
Thema: Assignment 3
Antworten: 1
Zugriffe: 751

Assignment 3

Hi, don't know if that is supposed to be but just want to mention that assignment 3 does not occur in Moodle yet.
Cheers lustiz
von lustiz
6. Dez 2012 11:25
Forum: Computer Vision 2
Thema: Assignment 2 - More Questions
Antworten: 1
Zugriffe: 541

Assignment 2 - More Questions

Hi guys, I've got another question for you: Problem 1 - 5. The factorization does not include a normalization term here s.t. p(x1, x2, x3) sums up to 1. So does that mean that p(x1, x2, x3) does not stand for a probability distribution here and we should normalize by ourselves? Thanks and cheers lus...
von lustiz
4. Dez 2012 09:13
Forum: Computer Vision 2
Thema: Assignment 2 - Problem 1 - Markov Blanket
Antworten: 2
Zugriffe: 910

Assignment 2 - Problem 1 - Markov Blanket

Hey guys, does the Markov blanket for a variable include the variable itself? Wiki says it doesn't. However, I found a definition in the ML2 slides of Prof. Roth that includes the variable which we want to compute the blanket for.
von lustiz
30. Nov 2012 07:22
Forum: Lernende Roboter
Thema: Exam Date
Antworten: 1
Zugriffe: 3305

Exam Date

Hi guys,
has the exam date been announced yet? I might have missed the corresponding lecture.
von lustiz
27. Nov 2012 14:59
Forum: Optimierungsalgorithmen
Thema: Python fuer die Programmieraufgabe
Antworten: 1
Zugriffe: 484

Python fuer die Programmieraufgabe

Sehr geehrter Herr Prof. Weihe, ich habe mich gewundert, ob es fuer Sie in Ordnung ginge, wenn wir Python fuer die Programmieraufgabe verwenden wuerden? Python umfasst alle modernen Programmierparadigmen inklusiver objektorientierter, aspektorientierter und funktionaler Programmierung und sollte so ...
von lustiz
27. Nov 2012 01:38
Forum: Lernende Roboter
Thema: Questions Exercise 1
Antworten: 4
Zugriffe: 2627

Re: Questions Exercise 1

Also: Is the kernel function right in 1.2 (f) ?
I get pretty good results when I use
\(k(x_i, x_j) = e ^ \frac{- 0.5 || x_i - x_j ||^2}{\sigma^2}\)

However, there is no hope when I use the proposed one:
\(k(x_i, x_j) = e ^ \frac{|| x_i - x_j ||^2}{\sigma^2}\)

Any suggestions?
von lustiz
26. Nov 2012 22:34
Forum: Lernende Roboter
Thema: Questions Exercise 1
Antworten: 4
Zugriffe: 2627

Re: Questions Exercise 1

Another question for you guys, concerning exercise 1.2 b) (Linear Least Squares):

Are we supposed to include a bias term? As far as I know you usually include a bias yet if we talk about 2 features, does that mean
a) [ sin(x); sin(2x) ] or
b) [ 1; sin(x); sin(2x) ] ?

Thanks in advance!

Cheers!
von lustiz
6. Nov 2012 10:05
Forum: Lernende Roboter
Thema: Korean Household Robot Prepares Salad
Antworten: 2
Zugriffe: 4613

Re: Korean Household Robot Prepares Salad

To spam another time:

Obstacle avoiding quadrotor using neural net:
http://www.youtube.com/watch?feature=pl ... Uj7Ryom03c

Flight through obstacle rich areas (I think parts of this video were shown in the lecture):
http://www.youtube.com/watch?feature=pl ... pUnVRb3Hx0
von lustiz
20. Jul 2012 01:56
Forum: Statistisches Maschinelles Lernen
Thema: Density-Estimation - KNN Classification
Antworten: 0
Zugriffe: 396

Density-Estimation - KNN Classification

Howdy guys, it's me... again^^ This time I struggle with page 37 of 6_Probability_Density_Estimation.pdf . That is, I am not quite sure about the quantity K_j . So let me get this right: K is a fixed parameter like let's say 15, as we are looking for the 15 nearest neighbors for each given x. N is t...
von lustiz
19. Jul 2012 18:45
Forum: Statistisches Maschinelles Lernen
Thema: Lagrangian Multiplier with Dual Function
Antworten: 0
Zugriffe: 326

Lagrangian Multiplier with Dual Function

Howdy, I got a question concerning the Lagrangian multiplier approach with a Dual Function . In particular I am talking about slide 35 of 4_Optimization_Refresher.pdf and I just wanted to make sure I got it right: According to the slide the dual function is given by \begin{equation}G(\mathbf{\lambda...
von lustiz
21. Sep 2010 12:33
Forum: Archiv
Thema: Oral Exams - Schedule
Antworten: 1
Zugriffe: 686

Oral Exams - Schedule

Hi,
is there a schedule already available for the oral exams?

greetings
lustiz
von lustiz
12. Mai 2010 00:13
Forum: Archiv
Thema: P3
Antworten: 2
Zugriffe: 432

Re: P3

also ich habe irgendwie grundsätzlich probleme zu verstehen, wie das alles gemeint ist! erstmal ne ganz blöde frage: für die standphase eines beines verändert sich ja anscheinend trotzdem x(t), d.h. während ein bein flugphase hat, bewegen sich alle anderen beine in standphase mit (wechseln aber nur ...
von lustiz
13. Dez 2009 16:19
Forum: Archiv
Thema: Übung 9 - A1
Antworten: 1
Zugriffe: 188

Übung 9 - A1

Hi!
Sagt mal, in der Aufgabe A1 ist l doch sicher auch vorgegeben?!

Gruß lustiz

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