Topic: Bumping a thread : Are Stats available ? (Read 307 times)

Yes, i realize that a single person cannot bump the thread to remain it on the top. I think for people the target now is not to be at No. 1 position, but at least on the No. 1 page of the Section and this can be achieved to some extent by (as you mentioned) by few Legendary accounts or by paid bumping service.

That won't last long. Remember the new bump calculation and you'll realize that it takes more than just multiple accounts spamming the thread or clicking the 'bump' button. Even if you have 10 Legendary accounts, your thread won't stay on top forever.

A topic's bump score is affected by the above two actions over the last 36 hours. Each action's effect decays linearly over the 36 hours, so an event which contributed 1 at the beginning will contribute 0.5 after 18 hours.

I think that the auto-stabilization property I described actually is desirable, though, so I changed the system to provide it. Now your super-bump power is: b*(1-0.15*^s/_b), where b is your base power and s is the total bump score you've contributed via superbumps over the last 30 days. This gives the same result as the previous algorithm except when any 30-day period overlaps with another.

I made a graph to fully understand what this means. With 1 Super bump per day, it takes a couple of months to stabilize to a certain Super bump power.

I simplified your formula to as follows:
b*[0.85^(s/b)]

I am fairly confident the above is the intention, but have no way of testing if it is implemented because I have superbumped threads in the past 30 days. If the 's/b' is an exponent, I can rule out the '0.15' from being the base because if someone has never superbumped any threads, the exponent will be zero, and the parenthesis would be simplified to '1-1', or zero, and if the 0.15 is multiplied by 's/b' the rolling 30 day cumulative superbump score (assuming 1 superbump per day) varies a lot for the first 90 days after the first 30 days of superbumping. Using an exponent to 0.85 results in the superbump power stabilizing within 60 days if someone superbumps one thread per day.

I have charted both the above exponent formula, and 0.15 being multiplied by s/b below:
b*[0.85^(s/b)]


0.15 being multiplied by 's/b':


I have also charted the individual superbump power if someone bumps one thread per day based on the exponent formula:


loyceV charted individual superbump power based on 0.15 being multipled by s/b.

I have uploaded the underlying data to a google docs spreadsheet.

I am still experimenting, but my current hypothesis is that the multiplication formula can be gamed by stopping superbumping for several days when the superbump value gets very low, while the exponent formula stabilizes quickly enough so that this strategy of gaming will not work.

Some stats on the likely effect of this change:

Number of new posts during the two-week period between August 18-31 (before this change): 131219
Number of new posts during the two-week period between September 22 - October 5: 142907
Increase of 11688 posts or +9% (helped in part by Yobit I would assume).

However the number of new posts on the 4 affected boards (for the same time periods) is...

Before: 58406
After: 46781
Decrease of 11625 posts or -20%.

If I understand the bumping system correctly, it is generally not a huge problem if several people bump a thread because each person's bump strength decreases the more frequently they bump any thread.

The main things are:

1) mini bumps add 1% of your power to the thread score, don't decrease your power, you can mini-bump one thread every 7 days (but you can post as often as you want), you can mini-bump multiple threads without limit.
2) super bumps add 100% of your power to the thread score, but decrease your remaining power by 15% (which will recover in 30 days), you can super-bump one thread once every 24 hours, you can super-bump multiple threads within 24 hours.
3) every addition to thread's bump score (mini or super) decreases to 0 in 36 hours

I hope this helps.
--sm.

The real question is "what if there are several accounts used to bump the thread?" i.e for promotional purposes.

That's one way to know but what if a person bump a thread by pressing the bump link/button and do not post ?

What you need to know
 3. If you've been spam-bumping, knock it off, since it's not going to work anymore.

Mini bumps
If you haven't posted in a topic in the last 7 days, posting in it adds 1% of your base bump power to the topic's bump score. Deleted posts count against the 7-day limit, but not the topic's bump score.

The reason for knowing is what if a single person is bumping a thread.

The reason for knowing is what if a single person is bumping a thread.

Yes - you can look at the profile name of the last person to post.

Unless I misunderstand the question?

You can retrieve data at NOW LIVE Viewing unedited/deleted posts (search per post, per user or per topic)

You can make a request to LoyceV but I don't see why we need it.

Non-publicity of data

For now, I am intentionally not making it public who bumped each topic, since that way you can't prove that you bumped anything, and this may prevent people from selling their bumps as easily. I don't particularly object to making the approximate bump scores or bump powers public, but I didn't do this yet.

Unless I misunderstand the question?

Is it possible to know who bump the particular thread ?