School Days (ONA)
Rating Average: 2.7500Rating Stddev: 0.82915619758885
Review Count: 4
Existing Best Bet #: 2.78219691855794
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.7500 - 0.82915619758885 ) + ( 1.38629436111989 / 1.6094379124341 )
( 1.92084380241115 ) - 0.861353116146786
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.7500 - 0.414578098794425 ) - 0 ) * $similarity
( 2.33542190120558 - 0 ) * $similarity
2.33542190120558 * $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: 11 - 2005, Modern, Drama, High School, Romance, ONA, Coming of Age, Dating Sim Spinoff, Short, Slice of Life, 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 |
|---|---|---|---|---|---|---|---|---|
| Lamune | 9 | 3.00 | 2.68 | 66% | 2.68 | 1.80 | 3.37 | 2.25 |
| Kimi ga Nozomu Eien - Haruka Route | 7 | 3.75 | 3.53 | 40% | 3.53 | 1.43 | 4.18 | 1.69 |
| Aki-Sora | 7 | 4.00 | 4.00 | 40% | 3.50 | 1.42 | 4.00 | 1.62 |
| Koi Kaze | 7 | 3.67 | 3.29 | 40% | 3.29 | 1.33 | 4.03 | 1.63 |
| I's Pure | 7 | 3.33 | 3.10 | 40% | 3.10 | 1.25 | 3.54 | 1.44 |
| ef - a tale of memories | 7 | 3.00 | 3.00 | 40% | 3.00 | 1.21 | 4.00 | 1.62 |
| Kimi ga Nozomu Eien | 7 | 3.30 | 2.85 | 40% | 2.85 | 1.15 | 3.83 | 1.55 |
| Amagami SS | 8 | 2.40 | 2.16 | 52% | 2.16 | 1.14 | 2.91 | 1.54 |
| BECK | 6 | 3.83 | 3.65 | 29% | 3.65 | 1.09 | 4.57 | 1.36 |
| Kamichu! | 6 | 3.80 | 3.60 | 29% | 3.60 | 1.07 | 4.40 | 1.31 |
| Okusama wa Joshi Kousei | 8 | 2.40 | 2.00 | 52% | 2.00 | 1.06 | 2.60 | 1.38 |
| Toradora! | 6 | 3.70 | 3.47 | 29% | 3.47 | 1.03 | 4.67 | 1.39 |
| Aishiteru Ze Baby | 6 | 3.67 | 3.43 | 29% | 3.43 | 1.02 | 4.31 | 1.28 |
| Air TV | 6 | 3.67 | 3.43 | 29% | 3.43 | 1.02 | 4.31 | 1.28 |
| Shuffle! | 6 | 3.67 | 3.43 | 29% | 3.43 | 1.02 | 4.31 | 1.28 |
| Kanon | 6 | 3.70 | 3.38 | 29% | 3.38 | 1.01 | 4.49 | 1.34 |
| Kanon (2006) | 6 | 3.60 | 3.36 | 29% | 3.36 | 1.00 | 4.11 | 1.22 |
| Da Capo Second Season | 7 | 2.75 | 2.34 | 40% | 2.34 | 0.95 | 2.78 | 1.13 |
| Akane-Iro ni Somaru Saka (TV) | 7 | 2.75 | 2.34 | 40% | 2.34 | 0.95 | 2.78 | 1.13 |
| Aoi Hana | 7 | 2.80 | 2.31 | 40% | 2.31 | 0.94 | 2.82 | 1.14 |
| School Days (TV) | 7 | 2.83 | 2.30 | 40% | 2.30 | 0.93 | 2.88 | 1.17 |
| Itazura na Kiss | 6 | 3.50 | 3.12 | 29% | 3.12 | 0.93 | 3.85 | 1.15 |
| Uta Kata | 6 | 3.33 | 3.10 | 29% | 3.10 | 0.92 | 3.54 | 1.05 |
| Clannad: After Story | 6 | 3.33 | 3.10 | 29% | 3.10 | 0.92 | 3.98 | 1.18 |
| Ladies versus Butlers! | 7 | 2.50 | 2.25 | 40% | 2.25 | 0.91 | 2.86 | 1.16 |
| Sasameki Koto | 7 | 2.50 | 2.25 | 40% | 2.25 | 0.91 | 2.86 | 1.16 |
| Clannad (TV) | 6 | 3.38 | 3.03 | 29% | 3.03 | 0.90 | 3.97 | 1.18 |
| REC | 6 | 3.14 | 2.97 | 29% | 2.97 | 0.88 | 4.00 | 1.19 |
| Gekijouban Air | 7 | 2.33 | 2.10 | 40% | 2.10 | 0.85 | 2.98 | 1.20 |
| Mimi wo Sumaseba | 5 | 4.00 | 4.00 | 20% | 4.00 | 0.83 | 5.00 | 1.03 |
| Full Metal Panic! The Second Raid | 5 | 4.00 | 4.00 | 20% | 4.00 | 0.83 | 5.29 | 1.09 |
| Myself; Yourself | 7 | 2.38 | 2.03 | 40% | 2.03 | 0.82 | 2.97 | 1.20 |
| Kono Aozora ni Yakusoku wo | 8 | 2.00 | 2.00 | 52% | 1.50 | 0.79 | 2.68 | 1.42 |
| To Heart | 6 | 3.12 | 2.60 | 29% | 2.60 | 0.77 | 3.36 | 1.00 |
| ef - a tale of melodies | 6 | 3.00 | 2.59 | 29% | 2.59 | 0.77 | 2.87 | 0.85 |
| True Tears | 6 | 3.00 | 2.59 | 29% | 2.59 | 0.77 | 3.30 | 0.98 |
| To Heart ~Remember My Memories~ | 6 | 3.00 | 2.59 | 29% | 2.59 | 0.77 | 2.87 | 0.85 |
| Kimikiss Pure Rouge | 6 | 2.75 | 2.53 | 29% | 2.53 | 0.75 | 3.18 | 0.95 |
| Kimi ni Todoke 2nd Season | 6 | 3.00 | 3.00 | 29% | 2.50 | 0.74 | 3.00 | 0.89 |
| One: Kagayaku Kisetsu e | 6 | 3.00 | 3.00 | 29% | 2.50 | 0.74 | 3.00 | 0.89 |
| Da Capo If | 6 | 3.00 | 2.50 | 29% | 2.50 | 0.74 | 2.43 | 0.72 |
| Mai-HiME Omake Special | 6 | 3.00 | 3.00 | 29% | 2.50 | 0.74 | 3.43 | 1.02 |
| Suzuka | 5 | 3.80 | 3.60 | 20% | 3.60 | 0.74 | 4.40 | 0.91 |
| Rozen Maiden | 5 | 3.75 | 3.53 | 20% | 3.53 | 0.73 | 4.61 | 0.95 |
| Paradise Kiss | 5 | 3.75 | 3.53 | 20% | 3.53 | 0.73 | 4.18 | 0.86 |
| Kanon: Kaza Hana | 6 | 2.60 | 2.36 | 29% | 2.36 | 0.70 | 3.11 | 0.93 |
| B Gata H Kei | 6 | 2.80 | 2.31 | 29% | 2.31 | 0.69 | 2.82 | 0.84 |
| Piano | 5 | 3.50 | 3.25 | 20% | 3.25 | 0.67 | 3.43 | 0.71 |
| Loveless (TV) | 5 | 3.50 | 3.25 | 20% | 3.25 | 0.67 | 3.43 | 0.71 |
| Hana-Saku Iroha | 5 | 3.50 | 3.25 | 20% | 3.25 | 0.67 | 3.43 | 0.71 |
