Needless
Rating Average: 3.0000Rating Stddev: 1
Review Count: 4
Existing Best Bet #: 2.86135311614679
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.0000 - 1 ) + ( 1.38629436111989 / 1.6094379124341 )
( 2 ) - 0.861353116146786
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: 20 - 2009, TV, Sci-Fi, Action, Adventure, Fantasy, Comedy, Drama, Fan Service, Fighting, Seinen, Supernatural, Action Comedy, Artificial Girls, Comedy Fantasy, Coming of Age, Pantsu, Pervert, Silly-funny, Violent
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 |
|---|---|---|---|---|---|---|---|---|
| Ichiban Ushiro no Daimaou | 12 | 3.00 | 2.59 | 36% | 2.59 | 0.93 | 3.30 | 1.19 |
| High School of the Dead | 12 | 3.00 | 2.55 | 36% | 2.55 | 0.92 | 3.11 | 1.12 |
| Fight Ippatsu! Juuden-chan!! | 13 | 2.25 | 2.03 | 42% | 2.03 | 0.86 | 2.68 | 1.13 |
| Kiba | 10 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 3.43 | 0.86 |
| The Sacred Blacksmith | 11 | 3.00 | 2.65 | 30% | 2.65 | 0.80 | 3.15 | 0.95 |
| Omamori Himari | 11 | 3.00 | 2.65 | 30% | 2.65 | 0.80 | 3.15 | 0.95 |
| G-on Riders | 11 | 3.00 | 2.59 | 30% | 2.59 | 0.78 | 2.87 | 0.87 |
| Sora no Otoshimono | 11 | 3.00 | 2.55 | 30% | 2.55 | 0.77 | 3.11 | 0.94 |
| Tears to Tiara | 10 | 3.25 | 3.03 | 25% | 3.03 | 0.76 | 3.68 | 0.92 |
| Akikan! | 11 | 3.00 | 2.50 | 30% | 2.50 | 0.76 | 2.43 | 0.74 |
| Bleach | 10 | 3.43 | 2.90 | 25% | 2.90 | 0.73 | 3.59 | 0.90 |
| Naruto Shippuuden (TV) | 9 | 4.00 | 4.00 | 20% | 3.50 | 0.71 | 4.00 | 0.81 |
| Zero no Tsukaima | 10 | 3.00 | 2.78 | 25% | 2.78 | 0.69 | 3.98 | 1.00 |
| Usagichan De Cue | 9 | 3.60 | 3.36 | 20% | 3.36 | 0.68 | 4.11 | 0.83 |
| Afro Samurai: Resurrection | 11 | 2.33 | 2.10 | 30% | 2.10 | 0.63 | 2.54 | 0.77 |
| Queen's Blade: Gyokuza no Tsugumono | 11 | 2.33 | 2.10 | 30% | 2.10 | 0.63 | 2.54 | 0.77 |
| Zero no Tsukaima: Futatsuki no Kishi | 10 | 2.86 | 2.54 | 25% | 2.54 | 0.63 | 3.43 | 0.86 |
| Dance In The Vampire Bund | 11 | 2.25 | 2.03 | 30% | 2.03 | 0.62 | 2.68 | 0.81 |
| To LOVE-Ru | 9 | 3.40 | 3.00 | 20% | 3.00 | 0.61 | 3.60 | 0.73 |
| AIR GEAR | 10 | 2.75 | 2.34 | 25% | 2.34 | 0.58 | 2.78 | 0.70 |
| Mahou Shoujo Lyrical Nanoha A's | 8 | 3.75 | 3.53 | 16% | 3.53 | 0.57 | 4.18 | 0.67 |
| Rozen Maiden | 8 | 3.75 | 3.53 | 16% | 3.53 | 0.57 | 4.61 | 0.74 |
| Interlude | 8 | 3.75 | 3.53 | 16% | 3.53 | 0.57 | 4.18 | 0.67 |
| Fairy Tail | 8 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Haiyore! Nyaruko-san W | 8 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Mahoujin GuruGuru | 8 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Abenobashi Mahou Shotengai | 8 | 3.67 | 3.43 | 16% | 3.43 | 0.55 | 4.31 | 0.69 |
| Princess Lover! | 10 | 2.67 | 2.20 | 25% | 2.20 | 0.55 | 2.41 | 0.60 |
| Ikki Tousen | 10 | 2.55 | 2.10 | 25% | 2.10 | 0.53 | 3.14 | 0.79 |
| Mamoru-kun ni Megami no Shukufuku wo! | 9 | 3.00 | 2.59 | 20% | 2.59 | 0.52 | 2.87 | 0.58 |
| Sekirei | 8 | 3.50 | 3.25 | 16% | 3.25 | 0.52 | 4.11 | 0.66 |
| Loveless (TV) | 8 | 3.50 | 3.25 | 16% | 3.25 | 0.52 | 3.43 | 0.55 |
| Sunabouzu | 9 | 3.00 | 2.55 | 20% | 2.55 | 0.52 | 3.11 | 0.63 |
| Seikon no Qwaser | 11 | 2.25 | 1.71 | 30% | 1.71 | 0.52 | 2.02 | 0.61 |
| Naruto | 8 | 3.62 | 3.20 | 16% | 3.20 | 0.51 | 4.87 | 0.78 |
| Sekirei ~Pure Engagement~ | 9 | 3.00 | 2.50 | 20% | 2.50 | 0.51 | 2.86 | 0.58 |
| Angel Beats! | 9 | 2.91 | 2.46 | 20% | 2.46 | 0.50 | 3.50 | 0.71 |
| Uta Kata | 8 | 3.33 | 3.10 | 16% | 3.10 | 0.50 | 3.54 | 0.57 |
| To Aru Kagaku no Railgun | 8 | 3.33 | 3.10 | 16% | 3.10 | 0.50 | 3.98 | 0.64 |
| Full Metal Panic ~Fumoffu~ | 7 | 4.00 | 4.00 | 12% | 4.00 | 0.49 | 5.59 | 0.69 |
| Eureka Seven | 7 | 4.00 | 4.00 | 12% | 4.00 | 0.49 | 5.00 | 0.61 |
| Samurai Champloo | 8 | 3.33 | 3.00 | 16% | 3.00 | 0.48 | 4.03 | 0.65 |
| Chrono Crusade | 7 | 3.89 | 3.73 | 12% | 3.73 | 0.46 | 4.94 | 0.61 |
| Natsu no Arashi! Akinai-chuu | 9 | 2.50 | 2.25 | 20% | 2.25 | 0.46 | 2.43 | 0.49 |
| Suzumiya Haruhi no Yuutsu | 7 | 3.80 | 3.60 | 12% | 3.60 | 0.44 | 4.83 | 0.59 |
| Darker than Black - Kuro no Keiyakusha | 7 | 3.80 | 3.60 | 12% | 3.60 | 0.44 | 4.40 | 0.54 |
| Vandread The Second Stage | 7 | 3.80 | 3.60 | 12% | 3.60 | 0.44 | 4.40 | 0.54 |
| Kaze no Stigma | 8 | 3.17 | 2.72 | 16% | 2.72 | 0.43 | 3.38 | 0.54 |
| Mahou Shoujo Lyrical Nanoha | 7 | 3.75 | 3.53 | 12% | 3.53 | 0.43 | 4.18 | 0.51 |
| Digimon Tamers | 7 | 3.75 | 3.53 | 12% | 3.53 | 0.43 | 4.18 | 0.51 |
