Angel Beats!
Rating Average: 2.9091Rating Stddev: 0.8999540851465151
Review Count: 11
Existing Best Bet #: 3.49904201725846
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.9091 - 0.8999540851465151 ) + ( 2.39789527279837 / 1.6094379124341 )
( 2.00914591485348 ) - 1.48989610240498
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.9091 - 0.449977042573258 ) - 0 ) * $similarity
( 2.45912295742674 - 0 ) * $similarity
2.45912295742674 * $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: 17 - TV, Fantasy, Action, Drama, 2010, Gun-action, High School, Supernatural, Comedy, Coming of Age, Fighting, Slice of Life, Violent, Swordplay, Tragedy, Modern, Isekai (Other World)
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 |
|---|---|---|---|---|---|---|---|---|
| Bleach | 10 | 3.43 | 2.90 | 34% | 2.90 | 1.00 | 3.59 | 1.24 |
| Kaze no Stigma | 10 | 3.17 | 2.72 | 34% | 2.72 | 0.94 | 3.38 | 1.17 |
| Omamori Himari | 10 | 3.00 | 2.65 | 34% | 2.65 | 0.92 | 3.15 | 1.09 |
| Kiba | 9 | 3.50 | 3.25 | 28% | 3.25 | 0.91 | 3.43 | 0.96 |
| Ichiban Ushiro no Daimaou | 10 | 3.00 | 2.59 | 34% | 2.59 | 0.90 | 3.30 | 1.14 |
| High School of the Dead | 10 | 3.00 | 2.55 | 34% | 2.55 | 0.88 | 3.11 | 1.07 |
| X (TV) | 8 | 3.75 | 3.47 | 22% | 3.47 | 0.77 | 4.91 | 1.09 |
| Karas | 8 | 3.67 | 3.43 | 22% | 3.43 | 0.76 | 3.88 | 0.86 |
| Meitantei Conan | 9 | 3.20 | 2.71 | 28% | 2.71 | 0.76 | 3.22 | 0.90 |
| Loveless (TV) | 8 | 3.50 | 3.25 | 22% | 3.25 | 0.72 | 3.43 | 0.76 |
| Needless | 9 | 3.00 | 2.50 | 28% | 2.50 | 0.70 | 2.86 | 0.80 |
| Tears to Tiara | 8 | 3.25 | 3.03 | 22% | 3.03 | 0.67 | 3.68 | 0.81 |
| sola | 8 | 3.40 | 3.00 | 22% | 3.00 | 0.66 | 3.60 | 0.80 |
| Juuni Kokuki | 7 | 3.90 | 3.75 | 16% | 3.75 | 0.64 | 5.03 | 0.85 |
| Ima Soko ni Iru Boku | 8 | 3.33 | 2.86 | 22% | 2.86 | 0.63 | 3.07 | 0.68 |
| Princess Lover! | 9 | 2.67 | 2.20 | 28% | 2.20 | 0.62 | 2.41 | 0.67 |
| Rozen Maiden | 7 | 3.75 | 3.53 | 16% | 3.53 | 0.60 | 4.61 | 0.78 |
| Lamune | 8 | 3.00 | 2.68 | 22% | 2.68 | 0.59 | 3.37 | 0.75 |
| Akiba Maid Sensou | 7 | 4.00 | 4.00 | 16% | 3.50 | 0.59 | 4.00 | 0.68 |
| Suzumiya Haruhi no Shoushitsu | 7 | 4.00 | 4.00 | 16% | 3.50 | 0.59 | 4.68 | 0.79 |
| Hanamonogatari | 7 | 4.00 | 4.00 | 16% | 3.50 | 0.59 | 4.00 | 0.68 |
| Naruto Shippuuden (TV) | 7 | 4.00 | 4.00 | 16% | 3.50 | 0.59 | 4.00 | 0.68 |
| Mahou Shoujo Lyrical Nanoha The MOVIE 1st | 7 | 4.00 | 4.00 | 16% | 3.50 | 0.59 | 4.00 | 0.68 |
| Jigoku Shoujo Futakomori | 7 | 4.00 | 4.00 | 16% | 3.50 | 0.59 | 4.68 | 0.79 |
| Rumic Theater | 7 | 4.00 | 4.00 | 16% | 3.50 | 0.59 | 4.00 | 0.68 |
| Toradora! | 7 | 3.70 | 3.47 | 16% | 3.47 | 0.59 | 4.67 | 0.79 |
| The Sacred Blacksmith | 8 | 3.00 | 2.65 | 22% | 2.65 | 0.59 | 3.15 | 0.70 |
| Air TV | 7 | 3.67 | 3.43 | 16% | 3.43 | 0.58 | 4.31 | 0.73 |
| Aishiteru Ze Baby | 7 | 3.67 | 3.43 | 16% | 3.43 | 0.58 | 4.31 | 0.73 |
| Kanon | 7 | 3.70 | 3.38 | 16% | 3.38 | 0.57 | 4.49 | 0.76 |
| Jigoku Shoujo | 7 | 3.60 | 3.36 | 16% | 3.36 | 0.57 | 4.11 | 0.70 |
| Saishu Heiki Kanojo | 7 | 3.60 | 3.36 | 16% | 3.36 | 0.57 | 4.54 | 0.77 |
| Yoake Mae Yori Ruri Iro Na | 9 | 2.00 | 2.00 | 28% | 2.00 | 0.56 | 3.00 | 0.84 |
| Tenjou Tenge:The Past Chapter | 8 | 3.00 | 3.00 | 22% | 2.50 | 0.55 | 3.00 | 0.66 |
| Kannazuki no Miko | 8 | 3.00 | 2.50 | 22% | 2.50 | 0.55 | 2.43 | 0.54 |
| Persona 4: The Animation | 8 | 3.00 | 2.50 | 22% | 2.50 | 0.55 | 2.43 | 0.54 |
| Re:CREATORS | 7 | 3.50 | 3.25 | 16% | 3.25 | 0.55 | 3.43 | 0.58 |
| Mahou Tsukai ni Taisetsu na Koto | 7 | 3.55 | 3.22 | 16% | 3.22 | 0.55 | 4.38 | 0.74 |
| Itazura na Kiss | 7 | 3.50 | 3.12 | 16% | 3.12 | 0.53 | 3.85 | 0.65 |
| Koukaku no Regios | 7 | 3.33 | 3.10 | 16% | 3.10 | 0.53 | 3.54 | 0.60 |
| Clannad: After Story | 7 | 3.33 | 3.10 | 16% | 3.10 | 0.53 | 3.98 | 0.67 |
| Uta Kata | 7 | 3.33 | 3.10 | 16% | 3.10 | 0.53 | 3.54 | 0.60 |
| Ikkitousen: Xtreme Xecutor | 10 | 2.00 | 2.00 | 34% | 1.50 | 0.52 | 2.00 | 0.69 |
| Tokyo Majin Gakuen Kenpuchou: Tou | 8 | 2.75 | 2.34 | 22% | 2.34 | 0.52 | 2.78 | 0.62 |
| Midori no Hibi | 7 | 3.40 | 3.00 | 16% | 3.00 | 0.51 | 4.03 | 0.68 |
| Asu no Yoichi! | 8 | 2.50 | 2.25 | 22% | 2.25 | 0.50 | 3.11 | 0.69 |
| Ladies versus Butlers! | 8 | 2.50 | 2.25 | 22% | 2.25 | 0.50 | 2.86 | 0.63 |
| Full Metal Panic! The Second Raid | 6 | 4.00 | 4.00 | 12% | 4.00 | 0.50 | 5.29 | 0.66 |
| Seikon no Qwaser | 9 | 2.25 | 1.71 | 28% | 1.71 | 0.48 | 2.02 | 0.57 |
| Amagami SS | 8 | 2.40 | 2.16 | 22% | 2.16 | 0.48 | 2.91 | 0.64 |
