Tegami Bachi
Rating Average: 2.5000Rating Stddev: 0.5
Review Count: 2
Existing Best Bet #: 2.43067655807339
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.5000 - 0.5 ) + ( 0.693147180559945 / 1.6094379124341 )
( 2 ) - 0.430676558073393
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.5000 - 0.25 ) - 0 ) * $similarity
( 2.25 - 0 ) * $similarity
2.25 * $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: 9 - Fantasy, TV, Action, Adventure, Gun-action, Supernatural, 2009, 2010, Dark
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 | 7 | 3.43 | 2.90 | 60% | 2.90 | 1.76 | 3.59 | 2.17 |
| Chrono Crusade | 6 | 3.89 | 3.73 | 44% | 3.73 | 1.66 | 4.94 | 2.20 |
| Interlude | 6 | 3.75 | 3.53 | 44% | 3.53 | 1.57 | 4.18 | 1.86 |
| Fairy Tail | 6 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Naruto Shippuuden (TV) | 6 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| To Aru Kagaku no Railgun | 6 | 3.33 | 3.10 | 44% | 3.10 | 1.38 | 3.98 | 1.77 |
| Koukaku no Regios | 6 | 3.33 | 3.10 | 44% | 3.10 | 1.38 | 3.54 | 1.58 |
| Tears to Tiara | 6 | 3.25 | 3.03 | 44% | 3.03 | 1.35 | 3.68 | 1.63 |
| The Sacred Blacksmith | 6 | 3.00 | 2.65 | 44% | 2.65 | 1.18 | 3.15 | 1.40 |
| Boukyaku no Senritsu | 6 | 3.00 | 2.55 | 44% | 2.55 | 1.13 | 3.11 | 1.38 |
| High School of the Dead | 6 | 3.00 | 2.55 | 44% | 2.55 | 1.13 | 3.11 | 1.38 |
| Needless | 6 | 3.00 | 2.50 | 44% | 2.50 | 1.11 | 2.86 | 1.27 |
| Kuroshitsuji II | 6 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| CANAAN | 6 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Darker than Black - Kuro no Keiyakusha | 5 | 3.80 | 3.60 | 30% | 3.60 | 1.11 | 4.40 | 1.36 |
| Angel Beats! | 6 | 2.91 | 2.46 | 44% | 2.46 | 1.09 | 3.50 | 1.56 |
| Durarara!! | 5 | 3.75 | 3.53 | 30% | 3.53 | 1.09 | 4.18 | 1.29 |
| Kurokami The Animation | 6 | 2.67 | 2.43 | 44% | 2.43 | 1.08 | 2.88 | 1.28 |
| Shiki | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.43 | 1.37 |
| Kateikyoushi Hitman Reborn! | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.43 | 1.37 |
| Hakkenden: Touhou Hakken Ibun | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| X (TV) | 5 | 3.75 | 3.47 | 30% | 3.47 | 1.07 | 4.91 | 1.52 |
| Legend of Basara | 5 | 3.67 | 3.43 | 30% | 3.43 | 1.06 | 3.88 | 1.20 |
| Senkaiden Houshin Engi | 5 | 3.67 | 3.43 | 30% | 3.43 | 1.06 | 3.88 | 1.20 |
| Loveless (TV) | 5 | 3.50 | 3.25 | 30% | 3.25 | 1.00 | 3.43 | 1.06 |
| Kiba | 5 | 3.50 | 3.25 | 30% | 3.25 | 1.00 | 3.43 | 1.06 |
| Mousou Dairinin | 5 | 3.50 | 3.25 | 30% | 3.25 | 1.00 | 3.43 | 1.06 |
| Hagane no Renkinjutsushi | 5 | 3.57 | 3.21 | 30% | 3.21 | 0.99 | 4.48 | 1.38 |
| Naruto | 5 | 3.62 | 3.20 | 30% | 3.20 | 0.99 | 4.87 | 1.50 |
| Dance In The Vampire Bund | 6 | 2.25 | 2.03 | 44% | 2.03 | 0.90 | 2.68 | 1.19 |
| Isekai no Seikishi Monogatari | 5 | 3.33 | 2.86 | 30% | 2.86 | 0.88 | 3.07 | 0.95 |
| Ima Soko ni Iru Boku | 5 | 3.33 | 2.86 | 30% | 2.86 | 0.88 | 3.07 | 0.95 |
| Natsu no Arashi! | 5 | 3.20 | 2.83 | 30% | 2.83 | 0.87 | 3.45 | 1.07 |
| Kaze no Stigma | 5 | 3.17 | 2.72 | 30% | 2.72 | 0.84 | 3.38 | 1.04 |
| Omamori Himari | 5 | 3.00 | 2.65 | 30% | 2.65 | 0.82 | 3.15 | 0.97 |
| D.Gray-man | 5 | 3.00 | 2.59 | 30% | 2.59 | 0.80 | 2.87 | 0.88 |
| Devil May Cry | 5 | 3.00 | 2.59 | 30% | 2.59 | 0.80 | 2.87 | 0.88 |
| Ichiban Ushiro no Daimaou | 5 | 3.00 | 2.59 | 30% | 2.59 | 0.80 | 3.30 | 1.02 |
| Kamisama no Inai Nichiyōbi | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Druaga no Tou: Sword of Uruk | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Witchblade | 5 | 3.00 | 2.50 | 30% | 2.50 | 0.77 | 2.43 | 0.75 |
| Hagane no Renkinjutsushi - FULLMETAL ALCHEMIST | 5 | 3.00 | 2.50 | 30% | 2.50 | 0.77 | 2.86 | 0.88 |
| Matantei Loki Ragnarok | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.43 | 1.06 |
| Tokyo Ravens | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| JoJo no Kimyou na Bouken: Stardust Crusaders Egypt-hen | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Umineko no Naku Koro ni | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Nanatsu no Taizai: Kamigami no Gekirin | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Shinrei Tantei Yakumo | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Claymore | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.68 | 1.14 |
| Hakuouki Hekketsuroku | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
