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View Counting at Reddit

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Re: View Counting at Reddit

#11

Post by johnfn »

hellbanner wrote: post #4

Slightly OT; but I wish reddit would use traditional forum style replies to push threads up, instead of the positive feedback loop of votes with opinions that agree with majority getting upvotes giving views which give proportionally more upvotes

Traditional forum style sorting just sorts for controversiality. Posts that generate heated discussion will continue to push their way to the top. This is okay but it means that non controversial stories will not make it to the top, which is honestly one of the largest benefits of news aggregator sites.

Re: View Counting at Reddit

#13

Post by hellbanner »

rjaco31 wrote: post #8
hellbanner wrote: post #4

Slightly OT; but I wish reddit would use traditional forum style replies to push threads up, instead of the positive feedback loop of votes with opinions that agree with majority getting upvotes giving views which give proportionally more upvotes

It might be conceivable on smaller subreddits, but on the big ones it would basically just drown everything into a sea of low-quality threads. I got the feeling that the vast majority of threads never ever make it to the "front page" of their subreddit.

Hm good points..

Re: View Counting at Reddit

#15

Post by hexane360 »

qrbLPHiKpiux wrote: post #10

Not applied to /r/the_donald however.

Are you talking about the "impressions"/subscribers incident? Because that was a mislabeled field that affected almost every other sub more than T_d.

https://www.reddit.com/r/help/comments/62naj4/can_someone_ex...

https://www.reddit.com/r/SubredditDrama/comments/62nw33/rthe...

Re: View Counting at Reddit

#16

Post by Lukassus »

haburka wrote: post #9

I love the article on hyperloglog! It is really quite good to read even if you're not interested in algorithms. I always liked number theory and I think that it's very interesting that you can guess how many uniques there are by counting how long your longest run of zeroes in a hash is. I suppose this could be broken by injecting in a unique visitor id that would hash to something with an absurd amount of zeroes? Tha…

The HyperLogLog was a very nice article, but I wanted to ask, is this related to the estimation of Naci tanks during WW2 by Allies? https://www.wired.com/2010/10/how-the-allies-used-math-again...

Re: View Counting at Reddit

#17

Post by lucasschm »

haburka wrote: post #9

I love the article on hyperloglog! It is really quite good to read even if you're not interested in algorithms. I always liked number theory and I think that it's very interesting that you can guess how many uniques there are by counting how long your longest run of zeroes in a hash is. I suppose this could be broken by injecting in a unique visitor id that would hash to something with an absurd amount of zeroes? Tha…

You are correct, but HyperLogLog has many buckets counting the longest run of zeros in order to avoid the problem of outliers. I recently studied these probabilistic algorithms and did a notebook with code and plots to show their performance: https://github.com/lucasschmidtc/Probabilistic-Algorithms/bl...

Re: View Counting at Reddit

#20

Post by Xeoncross »

kelnage wrote: post #6
tsukaisute wrote: post #3

Weird thing I have been seeing on Reddit is comment upvotes being off-by-one periodically on page refreshes. Reload, you get 3. Reload again, you get 4. Again, you get 3. Seems like a replication issue?

> Weird thing I have been seeing on Reddit is comment upvotes being off-by-one periodically on page refreshes. Reload, you get 3. Reload again, you get 4. Reload, you get 3. Seems like a replication issue? This is done on purpose [1], to prevent bots from calculating exact post/comment scores. 1. https://www.reddit.com/wiki/faq#wiki_how_is_a_comment.27s_sc...

I still don't understand what purpose this feature has - can you explain more?
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