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Translate Q&A about rating system used by lichess and provisional rating

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This commit is contained in:
kraktus 2020-04-20 20:43:24 +01:00
parent 7af52aa6e4
commit 7f9ec249ce
3 changed files with 32 additions and 21 deletions
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27
app/views/site/faq.scala
View file

@ -253,36 +253,27 @@ object faq {
h2("Lichess ratings"),
question(
"ratings",
"What rating system does Lichess use?",
whichRatingSystemUsedByLichess.txt(),
p(
"Ratings are calculated using the Glicko-2 rating method developed by Mark Glickman. This is a very popular rating method, and is used by a significant number of chess organisations (FIDE being a notable counter-example, as they still use the dated Elo rating system)."
),
p(
"""Fundamentally, Glicko ratings use "confidence intervals" when calculating and representing your rating. When you first start using the site, your rating starts at 1500 ± 700. The 1500 represents your rating, and the 700 represents the confidence interval."""
),
p(
"Basically, the system is 90% sure that your rating is somewhere between 800 and 2200. It is incredibly uncertain. Because of this, when a player is just starting out, their rating will change very dramatically, potentially several hundred points at a time. But after some games against established players the confidence interval will narrow, and the amount of points gained/lost after each game will decrease."
),
p(
"Another point to note is that, as time passes, the confidence interval will increase. This allows you to gain/lose points points more rapidly to match any changes in your skill level over that time."
ratingSystemUsedByLichess()
)
),
question(
"provisional",
"Why is there a question mark (?) next to a rating?",
p("The question mark means the rating is provisional. Reasons include:"),
whatIsProvisionalRating.txt(),
p(provisionalRatingExplanation()),
ul(
li(
"The player has not yet finished enough rated games against ",
em("opponents of similar strength"),
" in the rating category."
notPlayedEnoughRatedGamesAgainstX(
em(similarOpponents())
)
),
li(
"The player hasn't played enough recent games. Depending on the number of games you've played, it might take around a year of inactivity for your rating to become provisional again."
notPlayedRecently()
)
),
p(
"Concretely, it means that the Glicko-2 deviation is greater than 110. The deviation is the level of confidence the system has in the rating. The lower the deviation, the more stable is a rating."
ratingDeviationMorethanOneHundredTen()
)
),
question(

8
modules/i18n/src/main/I18nKeys.scala
View file

@ -1714,6 +1714,14 @@ val `ownerUniqueTrophies` = new I18nKey("faq:ownerUniqueTrophies")
val `wayOfBerserkExplanation` = new I18nKey("faq:wayOfBerserkExplanation")
val `aHourlyBulletTournament` = new I18nKey("faq:aHourlyBulletTournament")
val `goldenZeeExplanation` = new I18nKey("faq:goldenZeeExplanation")
val `whichRatingSystemUsedByLichess` = new I18nKey("faq:whichRatingSystemUsedByLichess")
val `ratingSystemUsedByLichess` = new I18nKey("faq:ratingSystemUsedByLichess")
val `whatIsProvisionalRating` = new I18nKey("faq:whatIsProvisionalRating")
val `provisionalRatingExplanation` = new I18nKey("faq:provisionalRatingExplanation")
val `notPlayedEnoughRatedGamesAgainstX` = new I18nKey("faq:notPlayedEnoughRatedGamesAgainstX")
val `similarOpponents` = new I18nKey("faq:similarOpponents")
val `notPlayedRecently` = new I18nKey("faq:notPlayedRecently")
val `ratingDeviationMorethanOneHundredTen` = new I18nKey("faq:ratingDeviationMorethanOneHundredTen")
}
}

18
translation/source/faq.xml
View file

@ -93,8 +93,20 @@
<string name="ownerUniqueTrophies">That trophy is unique in the history of Lichess, nobody other than %1$s will ever have it.</string>
<string name="wayOfBerserkExplanation">To get it, hiimgosu challenged himself to berserk and win 100% games of %1$s.</string>
<string name="aHourlyBulletTournament">a hourly Bullet tournament</string>
<string name="goldenZeeExplanation">ZugAddict was streaming and for the last 2 hours he had been trying to defeat A.I. level 8 in a 1+0 game, without success. Thibault told him that if he successfully did it on stream, he'd get a unique trophy. One hour later, he smashed Stockfish, and the promise was honoured."
)
</string>
<string name="goldenZeeExplanation">ZugAddict was streaming and for the last 2 hours he had been trying to defeat A.I. level 8 in a 1+0 game, without success. Thibault told him that if he successfully did it on stream, he'd get a unique trophy. One hour later, he smashed Stockfish, and the promise was honoured.</string>
<string name="whichRatingSystemUsedByLichess">What rating system does Lichess use?</string>
<string name="ratingSystemUsedByLichess">Ratings are calculated using the Glicko-2 rating method developed by Mark Glickman. This is a very popular rating method, and is used by a significant number of chess organisations (FIDE being a notable counter-example, as they still use the dated Elo rating system).
Fundamentally, Glicko ratings use 'confidence intervals' when calculating and representing your rating. When you first start using the site, your rating starts at 1500 ± 700. The 1500 represents your rating, and the 700 represents the confidence interval.
Basically, the system is 90% sure that your rating is somewhere between 800 and 2200. It is incredibly uncertain. Because of this, when a player is just starting out, their rating will change very dramatically, potentially several hundred points at a time. But after some games against established players the confidence interval will narrow, and the amount of points gained/lost after each game will decrease.
Another point to note is that, as time passes, the confidence interval will increase. This allows you to gain/lose points points more rapidly to match any changes in your skill level over that time.</string>
<string name="whatIsProvisionalRating">Why is there a question mark (?) next to a rating?</string>
<string name="provisionalRatingExplanation">The question mark means the rating is provisional. Reasons include:</string>
<string name="notPlayedEnoughRatedGamesAgainstX">The player has not yet finished enough rated games against %1$s in the rating category.</string>
<string name="similarOpponents">opponents of similar strength</string>
<string name="notPlayedRecently">The player hasn't played enough recent games. Depending on the number of games you've played, it might take around a year of inactivity for your rating to become provisional again.</string>
<string name="ratingDeviationMorethanOneHundredTen">Concretely, it means that the Glicko-2 deviation is greater than 110. The deviation is the level of confidence the system has in the rating. The lower the deviation, the more stable is a rating.</string>
</resources>