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kaner406 (1524 D Mod (B) (B))
12 Aug 17 UTC
(+1)
Update regarding vPoints/Rankings
See below:
kaner406 (1524 D Mod (B) (B))
12 Aug 17 UTC
(+1)
Hi all,

Due to the number of games that this site has hosted (as well as several cancelled games) the database has gotten rather creaky, and the original algorithm that was designed to work for keeping the vRanking system working was getting overloaded. As a number of players noted, ranking and vPoints were starting to get a little bit inaccurate.

Because of this we have had to reset the rating system, and everyone's ratings are now based on games ending after 1.1.16.

Devonian (1860 D)
12 Aug 17 UTC
(+1)
Yikes! I lost a lot of points.

But I think it's probably a good idea to rank us on our more recent games anyway.
CCR (1773 D)
12 Aug 17 UTC
(+2)
I understand this should be a temporary solution. The algorithm should be changed a bit. Instead of recalculating everything, the data could be consolidated after the end of every year, then the algorythm only calculate the latest games, but the rankings become permanent,
The ELO rankings are based on the chess rankings. This system is not intended to record recent games only. In its spirit is looking for the "real ranking" for each player, and alll the games should count. Thus the proposal:if the ratings of every player could be consolidated every year (a new "starting" value for each player, instead of 1000 for everyone), then wouldnt the algroythm be underloaded?
tassa (1859 D)
12 Aug 17 UTC
holy fuck, seriously? i lost like 500 D
tassa (1859 D)
12 Aug 17 UTC
vpoints that is
bluecthulhu (1804 D)
12 Aug 17 UTC
I hope this gets fixed at some point.
Captainmeme (1529 D Mod (B))
12 Aug 17 UTC
Bear in mind that this change applies to everyone, not just you, so losing a large amount of points won't necessarily equate to a big drop in your ranking. Additionally, a number of players who had top spots but left the site (Cypeg is an example) have dropped out of the top 100 as a result, leaving it more open to active players.
bluecthulhu (1804 D)
12 Aug 17 UTC
(+1)
Captainmeme - This was supposed to be a lifetime ranking. There are plenty of players with a longterm outlook who take a break and then come back. I had been working for years on my ranking only to see it get destroyed. I am not going to throw a tantrum or anything like that but this one move sucked away some of my competitive drive on this website unfortunately.
WTF? I've dropped from 30 something to 50 in the HOF. Screw this, I'm not buying Kaner any more drinks in the pub ever again.

(tongue in cheek)
CCR (1773 D)
12 Aug 17 UTC
(+1)
Cpt. Meme argues that 1500v used to put you in top100, now if you're 1500v+ then you're top20. But it makes no sense keeping an ELO-based ranking for recent results only!

I say it again: it seems easy to fix. If the ratings data were consolidated after the end of every year (a new "starting" value for each existing player), then the algorythm only calculate from the latest games, but the ratings become permanent.
Oli (988 D Mod (P))
12 Aug 17 UTC
(+1)
@CCR I might change this. But it requires a bit more coding...
So expect some more changes in the next few weeks...
tantrumizer (1882 D)
12 Aug 17 UTC
I will enjoy my temporary stay in the top 10 then. :-) Anyway, it is great to see progress on this and thanks to all who have worked on it.
Hirnsaege (2146 D)
12 Aug 17 UTC
(+1)
I think both are interesting numbers actually ...
- a lifetime ELO rating like it used to be (that needs some event or timer based additive calculation though for long term, as found out).
- a "the last x year(s)" ranking that honours currently strong players ... (that would mean a constant re-calculation thought that could cause server load too, so maybe it could be a monthly updated statistic or so?)

transforming the ELO ranking directly to a cut-the-past-off ranking of course will cause frustration from a play theory perspective ... rewards taken away never feel good, even with good reason.

Knowing the complexity of such databases and scripts, we all should understand this takes some time though to fix.
Mapu (2312 D (B))
12 Aug 17 UTC
There goes 1000 D....
CCR (1773 D)
12 Aug 17 UTC
(+1)
@Oli if you'll lean into coding, then why not take a closer look to this proposal:
The vranking regarding Replacement Policy should be improved; specially benefic to the whole community as general stimulous for replacing condemned powers.
The simple rule "in the case of a replacement player, he would NOT lower his rating based on that game -- it would remain unchanged."
Under the current system, good players who praise the ranking do not take over CD'ed powers, even with good sc count, if that power is in a bad tactical/diplomatic position!
RUFFHAUS 8 (2501 D)
12 Aug 17 UTC
(+1)
Oli, why not just start over from scratch? This Matthew cat at the is never going to play again. He's going to rest on the one dubiously freakish 1,200 point win he got. No one will ever surpass that. The Elo ratings need a serious overhaul. Why not take a look at this and reset them from the beginning?
Devonian (1860 D)
12 Aug 17 UTC
CCR, There are no condemned powers, only powers in very weak positions.

That being said, powers in very weak positions, have a very low expectation and are penalized less than a power that is in a strong position.

see page 2 of this thread, near the bottom where oli explains it:
http://vdiplomacy.com/forum.php?threadID=59573&page-thread=2#threadPager
CCR (1773 D)
12 Aug 17 UTC
Devonian, somoene with 2000v pts would not join as replacement to get a 3-way dray, it would even worse their ratings, if among average players, or even a 4-way ina well rated game. And yes most CD's are condemned powers. I use to take over on webdip m and here too, and most times for elimination.

I have read through that thread and I found out that the replacement policy could be developed
I did find this: Forum - thread: VDiplomacy Points
at the second page of this thread, link here:
http://www.vdiplomacy.com/forum.php?threadID=59573&page-thread=2#threadPager
LogicCure asked about the replacement policy (post on 26 Feb 2015)
I read it through, specially Oli's 2nd reply to this, the post starting with "The takeover is rated depending on..."
I believe the vranking regarding Replacement Policy should be improved.
zurn (1198 D)
12 Aug 17 UTC
Some people have mentioned the virtues of having a "recent-only ELO". Of course this would be disappointing to some. Maybe there needs to be an "all-time" list *and* a "recent" list? Always displayed side by side.

But maybe even better than a "recent" cutoff would be rating decay, as used in the Glicko system, which was developed as a replacement for Elo and addresses some of its supposed deficiencies. More about that here: https://www.chess.com/blog/kurtgodden/elo-to-glicko-your-rating-explained
300 D lost? Really? What the fuck!?
BobRoss (1683 D)
12 Aug 17 UTC
Whilst I am probably one of the few players to see his vranking increase again (as I was one of the 'victims' of the bug that occurred a few weeks ago) and I am glad to be back in the hall of fame, I actually would like for at least the all time ranking to be back into place again. I am most certainly for my #20 position in this new hall of fame, but it most certainly does not reflect the great quality and skill of some players that have been around for a much longer time. They are much more interesting opponents for me than I am for them ;-)

In any case a thank you for trying to fix the vranking problem that has been around for a while now.

One question remains for me: Even though the ranking system has been updated to games 01-01-2016 and after, there is still one game i've played that seems to be extremely bugged regarding ranking:

http://vdiplomacy.com/hof.php?gameID=31368

I solo'd this Rinascimento game but got zero vranking points for the game. Neither did the losing and surviving players see a decrease in their ranking. Whilst revamping the ranking system in general is top priority, I hope that perhaps at some point this game specifically can also looked at.
Devonian (1860 D)
12 Aug 17 UTC
CCR,


If a 2000v pts player ends in a 3 way draw, it would have been better for him if he entered as a replacement with a weak position than to start at the beginning. The vdip rating accounts for the poor starting position.

As far as takeovers being condemned, I agree that they are more likely to lose, but they are not condemned. I have come back from taking over 1 and 2 sc's to participating in a draw.

Besides, do you really think we have a problem with games that have been abandoned and not taken over. There are very few games available to be taken over. (only 1 game as of this writing) Our Reliability Rating corrects that problem; which is the more appropriate way to deal with it. If we give incentives on a "skill" rating, the skill rating of the player might be inappropriately manipulated.

Devonian (1860 D)
12 Aug 17 UTC
(+1)
BobRoss,

http://vdiplomacy.com/forum.php?threadID=38097&page-thread=24#threadPager

Leif_Syverson (1079 D Mod)
New 14 Apr 2013
"Just FYI, Rinascimento is intentionally (whether agreed by all as good or bad) not included in the points system because of the perceived initial imbalance. Every outcome for this variant results in no net change in ranking."
BobRoss (1683 D)
12 Aug 17 UTC
I had absolutely no knowledge of that, thanks for the clarification Devonian!


Devonian (1860 D)
12 Aug 17 UTC
There are a lot of things that are not very clear about the rating. I wish there was a FAQ on it somewhere.
Oli (988 D Mod (P))
31 Aug 17 UTC
(+4)
New update.
vDip-ratings do work again and are back to "lifetime" status...
bluecthulhu (1804 D)
31 Aug 17 UTC
Hi Oli. A few weeks back, there was a problem with the game 'Furnace of Affliction' where all players were given 1 NMR and 1 CD. Could we have those penalties removed somehow?
Oli (988 D Mod (P))
31 Aug 17 UTC
(+3)
This is next on my toDo list...
Dr. Recommended (1204 D Mod (B))
31 Aug 17 UTC
(+1)
Oli, I know there was some variability in NMR/CD that players were tagged with, and there was a similar issue recently with a Greek game. For example, I have 1 CD and 3 or 4 NMRs on my record that are not real. In order to spare you being deluged with messages from 50 players seeking correction, what's the best way for affected players to handle this?
Oli (988 D Mod (P))
31 Aug 17 UTC
(+3)
First I will try to code something to fix this, than the mods will need to handle this... :-)
So be patient. I'm working on it, but it will take some time. I do no longer have much spare time with my brain working for such complicated things... :-) Family takes the best time of me, everybody else needs to be patient.. :-)
No worries Oli, thanks very much for addressing it.
tantrumizer (1882 D)
31 Aug 17 UTC
Thanks Olivia for the ratings fix. Well done.
tantrumizer (1882 D)
31 Aug 17 UTC
(+1)
Olivia?! This new phone... :-(
Sounds like you have your priorities right Oli ;-)
Samj (1347 D)
31 Aug 17 UTC
Too bad Olivia couldn't drop the scores for my abysmal performance in the tournaments.. Hehe I might still be in the top 100 then! Thanks for all you do to help keep us up to date and running smooth!
Samj, I sympathize. I've been in tournament freefall right there with you buddy!
Someone fixed the vPoints issue? I'm back up to 1400+ and the other top players are back up where the belong (Ruff is higher by me by 600+ points)


37 replies
jason4747 (931 D)
03 Sep 17 UTC
“Vietnam: Apocalypse Then” – new variant in development
I am working on a Diplomacy variant and am seeking opinions on the board and design. See below
4 replies
Open
The Ambassador (1596 D (B) (B))
02 Sep 17 UTC
Dumb question: where is Imperium?
I felt like playing a map I haven't played in a million years: Imperium Diplomacy (http://www.vdiplomacy.net/variants.php?variantID=13)

More to follow...
3 replies
Open
BobRoss (1683 D)
31 Aug 17 UTC
(+2)
Variant Tournaments Results & Ranking
As the Variant Tournament thread was getting clogged i thought it'd be a good idea to separate the organisational and ranking part.
10 replies
Open
Enriador (1319 D)
26 Aug 17 UTC
Early game vs. End game
Every game of Diplomacy has two distinct phases, which mix a bit in the middle: the early game and the end game, each of them with a very different vibe and atmosphere.
1 reply
Open
BenjaminHester (1035 D)
24 Aug 17 UTC
Oli - still out there? (re: Sengoku V6)
just posting here in case my vacation delay caused you to lose the other thread. Several responses there, including the map with names you requested.
0 replies
Open
Vauban (1004 D)
23 Aug 17 UTC
New Variant: Corsican revolt
See reply
2 replies
Open
Enriador (1319 D)
21 Aug 17 UTC
How are Points Per Supply Center calculated?
Hello guys;

I searched the forum but did not find any information on the formula used at PPSC games. If anyone can come up with an example using the formula as well I would thank you very much.
32 replies
Open
ScubaSteve (1089 D)
21 Aug 17 UTC
Bug in game. What action to take?
I am trying to enter a move in a variant but for some reason, the game won't allow it. I sent a message to the mods. Is there anything else I can/should do?
5 replies
Open
00matthew2000 (2636 D)
16 Aug 17 UTC
New Rinascimento Game
The password for this game is "a" (lowercase). Players are greatly desired, but be advised, several players in this game know each other in real life. We will keep communication strictly within the game as per site rules.
1 reply
Open
Captainmeme (1529 D Mod (B))
10 Aug 17 UTC
(+1)
To Everyone in Furnace of Affliction
I'm really sorry, as I was trying to fix the Indonesia Build bug the game sent everyone into CD and cancelled itself. This was because I forgot about another bug - if you enter all holds, it counts as an NMR even if saved, so when I tried to advance the game 2 phases it assumed everyone had NMR'd twice (even though I'd set hold orders for everyone).
34 replies
Open
Vauban (1004 D)
12 Aug 17 UTC
HOW TO for variants
For anyone who wants to share their variant creating skills
3 replies
Open
CCR (1773 D)
10 Aug 17 UTC
Furnace of Affliction
=^|
"Due to inactivity the game was abandoned and removed."
5 replies
Open
nopunin10did (1011 D)
09 Aug 17 UTC
Cross-site advertisement: The Tournament Through Time
Just thought I'd put in a plug for the 2018 tournament that I'm running online over at the PlayDiplomacy forums. I know there are lots of variant players over here on vDip, so you might find one or more of these interesting. (Link will be in the response.)
1 reply
Open
Cav (1153 D)
06 Aug 17 UTC
Joint Victory?
Is it possible to declare a joint victory in the game?
24 replies
Open
BobRoss (1683 D)
10 Jul 17 UTC
Common Courtesy?
Over the past few weeks i've noticed that there is an awfully lot of NMR's and CDs happening. Many of these take place in a later stage of the game with no extended phase in place.


16 replies
Open
Vauban (1004 D)
06 Aug 17 UTC
In-game messaging with multiple players without Global Chat
Hi everyone,
I was wondering if there is a way to send messages to multiple players without using the Global Chat. It would very practical for players that are in a 2+ people alliances as they don't need to rewrite everything again for each ally. Is there such a thing yet? If not, I hope a developper passes by and makes a note of this. Thanks!
32 replies
Open
abadu (1400 D)
08 Jul 17 UTC
Live game nights?
More in the response:
57 replies
Open
Vauban (1004 D)
30 Jul 17 UTC
3 missing players for Dutch Revolt game
Hello everyone! We have started a "Dutch Revolt" yesterday, and we would need 3 more players to join in. Here is the URL:
http://www.vdiplomacy.com/board.php?gameID=31738#gamePanel
Thanks!
0 replies
Open
Spartan22 (1459 D (B))
27 Jul 17 UTC
(+1)
2 Year Hiatus... But I'm back!
Whether you remember me or not...
16 replies
Open
zurn (1198 D)
26 Jul 17 UTC
Public messages hidden from non-players
I noticed public messages in games are hidden from non-players, even for finished games. Does anyone know if this was a deliberate decision on vDip? On webDip these are visible to non-players, which is interesting for looking at the player dynamic or end of game commentary.
2 replies
Open
hellenic_riot (1000 D)
02 May 17 UTC
(+1)
Banned From Web Diplomacy?
Hello new friends! I was banned from Web Diplomacy.

48 replies
Open
Anon (?? D)
26 Jul 17 UTC
WWIV Game
http://www.vdiplomacy.com/board.php?gameID=31690
1 reply
Open
ubercacher16 (1076 D)
26 Jul 17 UTC
WWIV Game
See below.
0 replies
Open
Anon (?? D)
23 Jul 17 UTC
replacement on mars needed – all chances still intact!
this game just really started: gameID=31572
one of the players left after a successful first turn, so anyone who takes over will have all chances and options still available – including 3 builds to place right away.
0 replies
Open
Decima Legio (2042 D)
18 Jul 17 UTC
Replacement needed
Details below
4 replies
Open
BobRoss (1683 D)
17 Jul 17 UTC
(+1)
vpoints plummeted?
I just noticed my vpoints dropped from 1570 to 963 out of the blue? Is a new ranking system in place at vdip?
18 replies
Open
Anon (?? D)
17 Jul 17 UTC
Take over the third Reich!!!
http://vdiplomacy.com/board.php?gameID=31530
World War II with Germany in a really great position...
0 replies
Open
lazynomad (1079 D)
15 Jul 17 UTC
Wings: Air Force rules variant for Diplomacy
This diplomacy variant introduces rules for using air force units (wings).
12 replies
Open
kaner406 (1524 D Mod (B) (B))
11 Jul 17 UTC
(+2)
Damn I'm a sucker for punishment - yup commedy cube
Yes, I'm back on the team. <Gulp>
3 replies
Open
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