School Days (TV)
Rating Average: 2.8333Rating Stddev: 1.0671873729054748
Review Count: 6
Existing Best Bet #: 2.8793953796539
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.8333 - 1.0671873729054748 ) + ( 1.79175946922805 / 1.6094379124341 )
( 1.76611262709453 ) - 1.11328275255938
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.8333 - 0.533593686452737 ) - 0 ) * $similarity
( 2.29970631354726 - 0 ) * $similarity
2.29970631354726 * $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: 18 - 2007, TV, Modern, Dating Sim Spinoff, Drama, High School, Romance, Pantsu, Fan Service, Middle School, Tragedy, Violent, Dark, Depression, Harem, Slice of Life, Reboot, Seinen
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 |
|---|---|---|---|---|---|---|---|---|
| Kanon (2006) | 10 | 3.60 | 3.36 | 30% | 3.36 | 1.04 | 4.11 | 1.27 |
| sola | 10 | 3.40 | 3.00 | 30% | 3.00 | 0.93 | 3.60 | 1.11 |
| Kimi ga Nozomu Eien | 10 | 3.30 | 2.85 | 30% | 2.85 | 0.88 | 3.83 | 1.18 |
| Kanon | 9 | 3.70 | 3.38 | 25% | 3.38 | 0.84 | 4.49 | 1.12 |
| Yosuga no Sora | 13 | 1.80 | 1.60 | 52% | 1.60 | 0.83 | 2.40 | 1.25 |
| Clannad (TV) | 9 | 3.38 | 3.03 | 25% | 3.03 | 0.76 | 3.97 | 0.99 |
| Kimi ga Nozomu Eien - Haruka Route | 8 | 3.75 | 3.53 | 19% | 3.53 | 0.70 | 4.18 | 0.83 |
| Ladies versus Butlers! | 10 | 2.50 | 2.25 | 30% | 2.25 | 0.69 | 2.86 | 0.88 |
| Clannad (Movie) | 10 | 2.50 | 2.25 | 30% | 2.25 | 0.69 | 2.86 | 0.88 |
| Aki-Sora | 8 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Shuffle! | 8 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 4.31 | 0.85 |
| Air TV | 8 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 4.31 | 0.85 |
| Aishiteru Ze Baby | 8 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 4.31 | 0.85 |
| Lamune | 9 | 3.00 | 2.68 | 25% | 2.68 | 0.67 | 3.37 | 0.84 |
| Saishu Heiki Kanojo | 8 | 3.60 | 3.36 | 19% | 3.36 | 0.66 | 4.54 | 0.90 |
| Omamori Himari | 9 | 3.00 | 2.65 | 25% | 2.65 | 0.66 | 3.15 | 0.79 |
| Ichiban Ushiro no Daimaou | 9 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 3.30 | 0.82 |
| High School of the Dead | 9 | 3.00 | 2.55 | 25% | 2.55 | 0.64 | 3.11 | 0.78 |
| Myself; Yourself | 10 | 2.38 | 2.03 | 30% | 2.03 | 0.63 | 2.97 | 0.92 |
| Da Capo II | 9 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.43 | 0.61 |
| One: Kagayaku Kisetsu e | 9 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Tenjou Tenge:The Past Chapter | 9 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Clannad: After Story | 8 | 3.33 | 3.10 | 19% | 3.10 | 0.61 | 3.98 | 0.79 |
| Elfen Lied | 8 | 3.50 | 3.07 | 19% | 3.07 | 0.61 | 4.18 | 0.83 |
| Full Metal Panic! The Second Raid | 7 | 4.00 | 4.00 | 15% | 4.00 | 0.60 | 5.29 | 0.80 |
| ef - a tale of memories | 8 | 3.00 | 3.00 | 19% | 3.00 | 0.59 | 4.00 | 0.79 |
| Sumomomo Momomo ~ Chijou Saikyou no Yome | 8 | 3.20 | 3.00 | 19% | 3.00 | 0.59 | 3.80 | 0.75 |
| Da Capo Second Season | 9 | 2.75 | 2.34 | 25% | 2.34 | 0.58 | 2.78 | 0.70 |
| Akane-Iro ni Somaru Saka (TV) | 9 | 2.75 | 2.34 | 25% | 2.34 | 0.58 | 2.78 | 0.70 |
| Mai-HiME | 7 | 3.88 | 3.71 | 15% | 3.71 | 0.56 | 4.84 | 0.73 |
| Kono Aozora ni Yakusoku wo | 11 | 2.00 | 2.00 | 37% | 1.50 | 0.56 | 2.68 | 1.00 |
| Amagami SS | 9 | 2.40 | 2.16 | 25% | 2.16 | 0.54 | 2.91 | 0.73 |
| Hanbun no Tsuki ga Noboru Sora | 7 | 4.00 | 4.00 | 15% | 3.50 | 0.53 | 4.86 | 0.74 |
| Jigoku Shoujo Futakomori | 7 | 4.00 | 4.00 | 15% | 3.50 | 0.53 | 4.68 | 0.71 |
| Tsuyokiss Cool X Sweet | 9 | 2.33 | 2.10 | 25% | 2.10 | 0.52 | 2.54 | 0.64 |
| ef - a tale of melodies | 8 | 3.00 | 2.59 | 19% | 2.59 | 0.51 | 2.87 | 0.57 |
| True Tears | 8 | 3.00 | 2.59 | 19% | 2.59 | 0.51 | 3.30 | 0.65 |
| Minami-ke | 7 | 3.60 | 3.36 | 15% | 3.36 | 0.51 | 4.11 | 0.62 |
| Jigoku Shoujo | 7 | 3.60 | 3.36 | 15% | 3.36 | 0.51 | 4.11 | 0.62 |
| Code Geass Hangyaku no Lelouch Season 2 | 8 | 3.00 | 2.55 | 19% | 2.55 | 0.50 | 3.11 | 0.61 |
| Ai Yori Aoshi | 7 | 3.65 | 3.32 | 15% | 3.32 | 0.50 | 4.86 | 0.73 |
| Zero no Tsukaima: Futatsuki no Kishi | 8 | 2.86 | 2.54 | 19% | 2.54 | 0.50 | 3.43 | 0.68 |
| Ichigo 100% TV | 8 | 2.75 | 2.53 | 19% | 2.53 | 0.50 | 3.18 | 0.63 |
| Kimikiss Pure Rouge | 8 | 2.75 | 2.53 | 19% | 2.53 | 0.50 | 3.18 | 0.63 |
| Tokimeki Memorial - Only Love | 9 | 2.00 | 2.00 | 25% | 2.00 | 0.50 | 3.00 | 0.75 |
| Koi Kaze | 7 | 3.67 | 3.29 | 15% | 3.29 | 0.50 | 4.03 | 0.61 |
| Sekirei ~Pure Engagement~ | 8 | 3.00 | 2.50 | 19% | 2.50 | 0.49 | 2.86 | 0.57 |
| Nagasarete Airantou | 7 | 3.50 | 3.25 | 15% | 3.25 | 0.49 | 4.11 | 0.62 |
| Bokura ga Ita | 7 | 3.43 | 3.18 | 15% | 3.18 | 0.48 | 4.14 | 0.63 |
| Da Capo | 8 | 2.80 | 2.43 | 19% | 2.43 | 0.48 | 3.05 | 0.60 |
