These are chat archives for FreeCodeCamp/DataScience

4th
Feb 2016
Mariya
@mariyadiminsky
Feb 04 2016 00:09
Anyone know when Data Visualization Challenges will be available?
evaristoc
@evaristoc
Feb 04 2016 09:34

@noncasus good question: I have some rough estimates, probably wrong. I don't have direct access to the database.

In any case, even estimating activity using the database is not so simple as it looks like: there should be people who are still register but not active. Similarly, there are those who are active but are not captured in our systems because they are working in projects like ziplines or basejumps.

The rough estimation I have suggests that the last two days we might have had 10000-20000 active users.

I have requested to add additional info about registered users to the Torrent dataset.


@Mashadim no, we don't manage a date here (I thought they were already available?)


People:
Talked to Quincy: he won't give up the authorizations for FB and Twitter for any data mining activity. Security reasons. But I think you can still register as a developer in any of those and try to do some data mining on FCC information from your own account.

Forgot to mention: other interesting source of data about FCC available to us is GitHub.

evaristoc
@evaristoc
Feb 04 2016 11:39

People:
Who is REALLY interested in (simple!) fraud detection algorithms? There is a possibility that FCC would implement an academic honesty enforcement workflow policy.

I have suggested similarity analysis, but because an exhaustive comparison could be expensive, it would be better to implement an heuristic. I don't remember which the basic is, I think it had something to do with naive Bayesian, I am not sure.

noncasus
@noncasus
Feb 04 2016 16:35
@evaristoc wow that is amazing O_O
Thanks for the info!
CamperBot
@camperbot
Feb 04 2016 16:35
noncasus sends brownie points to @evaristoc :sparkles: :thumbsup: :sparkles:
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Christian Bertram
@cbertram
Feb 04 2016 16:45
@evaristoc sounds cool :) how is it possible to make sure noone innocent is going to get caught? (Without the fraud detection being too easy to bypass)
Christian Bertram
@cbertram
Feb 04 2016 16:55
It sounds pretty interresting, but I don't know how it would be done in a good way
evaristoc
@evaristoc
Feb 04 2016 17:05

@ChristianBertram there is always a chance of failure (we are not working a super algo here...), so an additional human checking would be required. But it is expected that human will have less comparisons to make to detect a possible cheater... the idea is to reduce the decision space...

By the way: there will be cheaters that will pass all test too...

Are you interested?

Anyone?
Christian Bertram
@cbertram
Feb 04 2016 18:03
Yes I'm interesse :D thanks for clarifying @evaristoc (I just came home from tennis, that's why I didn't answer)
CamperBot
@camperbot
Feb 04 2016 18:03
christianbertram sends brownie points to @evaristoc :sparkles: :thumbsup: :sparkles:
:star: 218 | @evaristoc | http://www.freecodecamp.com/evaristoc
Christian Bertram
@cbertram
Feb 04 2016 18:04
*Interrested (My Danish autocorrect is messing with me xD)
evaristoc
@evaristoc
Feb 04 2016 18:06
Good! Contact you later!
Christian Bertram
@cbertram
Feb 04 2016 18:07
@evaristoc I don't probably don't know enough to do it effectively yet, but I'm open to learning and contributing :)
Mariya
@mariyadiminsky
Feb 04 2016 18:13
@evaristoc projects are available, challenges are not for the Data Visualization certificate, I was just wondering when they would be available. It says "Coming Soon" on all of them.
evaristoc
@evaristoc
Feb 04 2016 20:08
@Mashadim yes: they are working on in-house infrastructure to give better support for those exercises too... it would take no more than a month
A material to take in account for similarity analysis section: http://arxiv.org/pdf/1408.2927.pdf
Christian Bertram
@cbertram
Feb 04 2016 20:10
thanks @evaristoc looks interesting
CamperBot
@camperbot
Feb 04 2016 20:10
christianbertram sends brownie points to @evaristoc :sparkles: :thumbsup: :sparkles:
:star: 219 | @evaristoc | http://www.freecodecamp.com/evaristoc
Mariya
@mariyadiminsky
Feb 04 2016 20:10
@evaristoc ok thank you, I'm excited to get started :)
CamperBot
@camperbot
Feb 04 2016 20:10
mashadim sends brownie points to @evaristoc :sparkles: :thumbsup: :sparkles:
:star: 220 | @evaristoc | http://www.freecodecamp.com/evaristoc