Die Suche ergab 70 Treffer

von lustiz
26. Jun 2013 14:43
Forum: Computer Vision
Thema: Assignment 3 Problem 1, warning using quadprog
Antworten: 3
Zugriffe: 1184

Re: Assignment 3 Problem 1, warning using quadprog

Hi, using quadprog in our Program produces: Warning: Large-scale algorithm does not currently solve this problem formulation, using medium-scale algorithm instead. In quadprog at 291 In train_svm_s at 20 In problem1a at 6 Exiting: the constraints are overly stringent; no feasible starting point fou...
von lustiz
26. Jun 2013 14:21
Forum: Computer Vision
Thema: Assignment 3 - Problem 2 - K-Means
Antworten: 5
Zugriffe: 902

Re: Assignment 3 - Problem 2 - K-Means

Does your kmeans algorithm terminate? Mine doesn't, but I think my implementation is right. I choose the cluster centroids, as stated, totally random. It happens each iterration that there is a centroid which has no points associated with it. Choosing a new andom point does not solve this. There's ...
von lustiz
25. Jun 2013 16:56
Forum: Computer Vision
Thema: Assignment 3 - Problem 2 - K-Means
Antworten: 5
Zugriffe: 902

Assignment 3 - Problem 2 - K-Means

Hi, short question: Are we supposed to implement k-means by ourselves or can we take the Matlab implementation? In case we are allowed to use the Matlab implementation, how can I tell Matlab to initialize lost clusters with random data points? According to the documentation there is only an option t...
von lustiz
14. Jun 2013 12:01
Forum: Computer Vision
Thema: Ex 2.3
Antworten: 2
Zugriffe: 1833

Re: Ex 2.3

Hi, a few thoughts that may help: You can interpret non-maximum suppression as a non-linear filter you apply to the image. That is, you run through all pixels of the image and just keep the ones which are greater or equal than all pixels in their surrounding 5x5 window and discard all other ones. Ha...
von lustiz
12. Jun 2013 17:22
Forum: Computer Vision
Thema: Assignment 2 - Two questions
Antworten: 1
Zugriffe: 696

Assignment 2 - Two questions

Hi, I've got two questions about assignment two: 1) In problem 1 we have to implement a function upsample2 which should make use of a binomial filter after the upsample step. However, no treatment of boundaries is specified. I see two options here, either a standard convolution or a matlab image fil...
von lustiz
6. Mai 2013 11:28
Forum: Computer Vision
Thema: 1st Assignment - Orga
Antworten: 1
Zugriffe: 634

1st Assignment - Orga

Hi, assignments are gonna be posted on Moodle, right? When will the first assignment be out?
von lustiz
8. Apr 2013 14:58
Forum: Computer Vision 2
Thema: CV2 Results?
Antworten: 1
Zugriffe: 590

CV2 Results?

Hi, just wanted to ask: when can we expect the results to be in TUCAN? thanks!
von lustiz
18. Mär 2013 04:13
Forum: Lernende Roboter
Thema: Dynamic Programming Example - Optimal Control
Antworten: 0
Zugriffe: 2652

Dynamic Programming Example - Optimal Control

Hi there, short question concerning page 48 and the following ones of the 'OptimalControl' slides. That is the traveling through Europe example for dynamic programming: I'm concerned with step T-1: It is optimal to go from state 2 and 4 to state 5 because you get the $1000 as reward. Also you should...
von lustiz
16. Mär 2013 22:23
Forum: Computer Vision 2
Thema: Assignment 5 - Evaluation
Antworten: 2
Zugriffe: 484

Re: Assignment 5 - Evaluation

yea mine too in the mean time.. all good :P
von lustiz
13. Mär 2013 18:53
Forum: Computer Vision 2
Thema: Assignment 5 - Evaluation
Antworten: 2
Zugriffe: 484

Assignment 5 - Evaluation

Hi, just wanted to know if you guys have already evaluated assignment 5 as I havent received an evaluation for assignment 5 yet? Is that supposed to be? Cheers lustiz
von lustiz
13. Mär 2013 18:04
Forum: Optimierungsalgorithmen
Thema: Eeeendlich alle Videos
Antworten: 7
Zugriffe: 1495

Re: Eeeendlich alle Videos

Vielen Dank, die Videos sind eine große Hilfe! Wollte Sie hier aber einmal darauf aufmerksam machen, dass die Videos 4 und 6 (Feature-based local search / Kernighan-Lin/ Iterated Local Search / Population-Based Approaches), also die Termine vom 14.11.2012 und 28.11.2012 identisch sind. Kleiner Fehle...
von lustiz
9. Mär 2013 11:06
Forum: Lernende Roboter
Thema: Exam
Antworten: 3
Zugriffe: 5612

Re: Exam

Hi, Jan sent an email regarding this concern saying we are allowed to bring: 1) one sheet of paper with ONLY handwritten text and it is submitted together with the exam, 2) a non-programable calculator. So this might be a silly question but are we allowed to write on both sides on the sheet, I guess...
von lustiz
8. Mär 2013 13:50
Forum: Lernende Roboter
Thema: Exam
Antworten: 3
Zugriffe: 5612

Exam

Hi there, I can remember we were supposed to bring a calculator. However, how was the policy with formula sheets? Are we allowed to bring self-written sheets? If so, 1 or 2 pages? Cheers
von lustiz
6. Mär 2013 20:01
Forum: Optimierungsalgorithmen
Thema: Programmieraufgabe
Antworten: 8
Zugriffe: 1634

Programmieraufgabe

Hallo, nur eine kurze Frage: In der Aufgabe heisst es "the open interiors of any two rectangles do not intersect". Das bedeutet aber, dass sich die Kanten zweier Rechtecke beruehren duerfen. Liege ich da richtig? Sollte am Ende keinen grossen Unterschied machen, aber immerhin soll es ja aufgabengetr...
von lustiz
7. Feb 2013 18:23
Forum: Lernende Roboter
Thema: Homework 4
Antworten: 1
Zugriffe: 3542

Homework 4

Hey guys, unfortunately I missed the lecture today. Did they say anything about homework 4? When will it be available?
Cheers

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