Da Capo If
Rating Average: 3.0000Rating Stddev: 1
Review Count: 2
Existing Best Bet #: 2.43067655807339
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.0000 - 1 ) + ( 0.693147180559945 / 1.6094379124341 )
( 2 ) - 0.430676558073393
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.0000 - 0.5 ) - 0 ) * $similarity
( 2.5 - 0 ) * $similarity
2.5 * $similarity
In English: Average rating minus half the standard deviation of the ratings, with a penalty of half a rating point if there are fewer then five reviews with no variation in their ratings.
Discussion: This uses the average rating as the base, lowering the overall rating based on the amount of variance in the ratings. Additionally it lowers the rating if only a few people have rated it and they've all given it the same score. Perhaps shows with few ratings shouldn't even show up in best bets.
Keywords: 13 - 2008, Fantasy, Romance, Dating Sim Spinoff, Depression, Drama, High School, Slice of Life, Anime-Manga Bundle, 2009, OVA, Seinen, Video-game inspired
For reference, Devil Doll's similarity calc is this:
( $matching_keys * ( $matching_keys / $total_keys ) * $total_keys ) / ( $total_keys * $total_keys )
| Title | Key Match | Rating | Rating - stddev | Devil Doll's Similarity Calc | New bbet | New bbet * Similarity | Old bbet | Old bbet * Similarity |
|---|---|---|---|---|---|---|---|---|
| Aki-Sora | 8 | 4.00 | 4.00 | 37% | 3.50 | 1.33 | 4.00 | 1.51 |
| Kimi ga Nozomu Eien - Haruka Route | 7 | 3.75 | 3.53 | 28% | 3.53 | 1.02 | 4.18 | 1.21 |
| Da Capo II 2nd Season | 7 | 4.00 | 4.00 | 28% | 3.50 | 1.01 | 4.43 | 1.28 |
| Clannad: After Story | 7 | 3.33 | 3.10 | 28% | 3.10 | 0.90 | 3.98 | 1.15 |
| Kimi ga Nozomu Eien | 7 | 3.30 | 2.85 | 28% | 2.85 | 0.83 | 3.83 | 1.11 |
| To Heart | 7 | 3.12 | 2.60 | 28% | 2.60 | 0.75 | 3.36 | 0.98 |
| Toradora! | 6 | 3.70 | 3.47 | 21% | 3.47 | 0.74 | 4.67 | 1.00 |
| Shuffle! | 6 | 3.67 | 3.43 | 21% | 3.43 | 0.73 | 4.31 | 0.92 |
| Da Capo II | 7 | 3.00 | 2.50 | 28% | 2.50 | 0.72 | 2.43 | 0.70 |
| One: Kagayaku Kisetsu e | 7 | 3.00 | 3.00 | 28% | 2.50 | 0.72 | 3.00 | 0.87 |
| Kanon | 6 | 3.70 | 3.38 | 21% | 3.38 | 0.72 | 4.49 | 0.96 |
| Kanon (2006) | 6 | 3.60 | 3.36 | 21% | 3.36 | 0.71 | 4.11 | 0.88 |
| Kowarekake no Orgel | 6 | 3.40 | 3.16 | 21% | 3.16 | 0.67 | 3.91 | 0.83 |
| School Days (TV) | 7 | 2.83 | 2.30 | 28% | 2.30 | 0.67 | 2.88 | 0.83 |
| Itazura na Kiss | 6 | 3.50 | 3.12 | 21% | 3.12 | 0.66 | 3.85 | 0.82 |
| I's Pure | 6 | 3.33 | 3.10 | 21% | 3.10 | 0.66 | 3.54 | 0.76 |
| Nazo no Kanojo X: Nazo no Natsu Matsuri | 6 | 3.33 | 3.10 | 21% | 3.10 | 0.66 | 3.54 | 0.76 |
| Chaos;Head | 6 | 3.25 | 3.03 | 21% | 3.03 | 0.65 | 3.68 | 0.78 |
| Tears to Tiara | 6 | 3.25 | 3.03 | 21% | 3.03 | 0.65 | 3.68 | 0.78 |
| White Album S2 | 6 | 3.25 | 3.03 | 21% | 3.03 | 0.65 | 3.68 | 0.78 |
| Clannad (TV) | 6 | 3.38 | 3.03 | 21% | 3.03 | 0.64 | 3.97 | 0.85 |
| Amagami SS | 7 | 2.40 | 2.16 | 28% | 2.16 | 0.62 | 2.91 | 0.84 |
| Clannad: After Story - Kyou Chapter | 7 | 2.33 | 2.10 | 28% | 2.10 | 0.61 | 2.54 | 0.74 |
| Myself; Yourself | 7 | 2.38 | 2.03 | 28% | 2.03 | 0.59 | 2.97 | 0.86 |
| Clannad Mouhitosu no Sekai Tomoyo Hen | 7 | 2.20 | 2.00 | 28% | 2.00 | 0.58 | 2.80 | 0.81 |
| Lamune | 6 | 3.00 | 2.68 | 21% | 2.68 | 0.57 | 3.37 | 0.72 |
| Kono Aozora ni Yakusoku wo | 8 | 2.00 | 2.00 | 37% | 1.50 | 0.57 | 2.68 | 1.02 |
| True Tears | 6 | 3.00 | 2.59 | 21% | 2.59 | 0.55 | 3.30 | 0.70 |
| ef - a tale of melodies | 6 | 3.00 | 2.59 | 21% | 2.59 | 0.55 | 2.87 | 0.61 |
| Code Geass Hangyaku no Lelouch Season 2 | 6 | 3.00 | 2.55 | 21% | 2.55 | 0.54 | 3.11 | 0.66 |
| Sora no Otoshimono | 6 | 3.00 | 2.55 | 21% | 2.55 | 0.54 | 3.11 | 0.66 |
| Kimikiss Pure Rouge | 6 | 2.75 | 2.53 | 21% | 2.53 | 0.54 | 3.18 | 0.68 |
| Seto no Hanayome (OVA) | 6 | 3.00 | 2.50 | 21% | 2.50 | 0.53 | 2.43 | 0.52 |
| Suzumiya Haruhi no Shoushitsu | 5 | 4.00 | 4.00 | 14% | 3.50 | 0.52 | 4.68 | 0.69 |
| Da Capo | 6 | 2.80 | 2.43 | 21% | 2.43 | 0.52 | 3.05 | 0.65 |
| Air TV | 5 | 3.67 | 3.43 | 14% | 3.43 | 0.51 | 4.31 | 0.64 |
| Aishiteru Ze Baby | 5 | 3.67 | 3.43 | 14% | 3.43 | 0.51 | 4.31 | 0.64 |
| Kanon: Kaza Hana | 6 | 2.60 | 2.36 | 21% | 2.36 | 0.50 | 3.11 | 0.66 |
| H2O: Footprints in the Sand | 6 | 2.75 | 2.34 | 21% | 2.34 | 0.50 | 2.78 | 0.59 |
| Akane-Iro ni Somaru Saka (TV) | 6 | 2.75 | 2.34 | 21% | 2.34 | 0.50 | 2.78 | 0.59 |
| School Days (ONA) | 6 | 2.75 | 2.34 | 21% | 2.34 | 0.50 | 2.78 | 0.59 |
| Usagichan De Cue | 5 | 3.60 | 3.36 | 14% | 3.36 | 0.50 | 4.11 | 0.61 |
| Saishu Heiki Kanojo | 5 | 3.60 | 3.36 | 14% | 3.36 | 0.50 | 4.54 | 0.67 |
| Aoi Hana | 6 | 2.80 | 2.31 | 21% | 2.31 | 0.49 | 2.82 | 0.60 |
| Koi Kaze | 5 | 3.67 | 3.29 | 14% | 3.29 | 0.49 | 4.03 | 0.60 |
| Asatte no Houkou | 5 | 3.50 | 3.25 | 14% | 3.25 | 0.48 | 3.86 | 0.57 |
| Ladies versus Butlers! | 6 | 2.50 | 2.25 | 21% | 2.25 | 0.48 | 2.86 | 0.61 |
| Clannad (Movie) | 6 | 2.50 | 2.25 | 21% | 2.25 | 0.48 | 2.86 | 0.61 |
| Sasameki Koto | 6 | 2.50 | 2.25 | 21% | 2.25 | 0.48 | 2.86 | 0.61 |
| Sennen Joyu | 5 | 3.60 | 3.20 | 14% | 3.20 | 0.47 | 3.80 | 0.56 |
