Bakuretsu Tenshi
Rating Average: 3.0000Rating Stddev: 0.7071067811865476
Review Count: 4
Existing Best Bet #: 3.15424633496024
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.0000 - 0.7071067811865476 ) + ( 1.38629436111989 / 1.6094379124341 )
( 2.29289321881345 ) - 0.861353116146786
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.0000 - 0.353553390593274 ) - 0 ) * $similarity
( 2.64644660940673 - 0 ) * $similarity
2.64644660940673 * $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 - 2004, Action, Adventure, Fan Service, Fighting, Gun-action, Mecha, TV, Drama
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 |
|---|---|---|---|---|---|---|---|---|
| Vandread The Second Stage | 6 | 3.80 | 3.60 | 44% | 3.60 | 1.60 | 4.40 | 1.96 |
| Mahou Shoujo Lyrical Nanoha | 6 | 3.75 | 3.53 | 44% | 3.53 | 1.57 | 4.18 | 1.86 |
| KURAU Phantom Memory | 6 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Casshern: The Last Day on Earth | 6 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Sunabouzu | 7 | 3.00 | 2.55 | 60% | 2.55 | 1.54 | 3.11 | 1.88 |
| Naruto | 6 | 3.62 | 3.20 | 44% | 3.20 | 1.42 | 4.87 | 2.16 |
| Uta Kata | 6 | 3.33 | 3.10 | 44% | 3.10 | 1.38 | 3.54 | 1.58 |
| Samurai Champloo | 6 | 3.33 | 3.00 | 44% | 3.00 | 1.33 | 4.03 | 1.79 |
| Bleach | 6 | 3.43 | 2.90 | 44% | 2.90 | 1.29 | 3.59 | 1.59 |
| Full Metal Panic! The Second Raid | 5 | 4.00 | 4.00 | 30% | 4.00 | 1.23 | 5.29 | 1.63 |
| Koukaku Kidoutai STAND ALONE COMPLEX | 5 | 4.00 | 4.00 | 30% | 4.00 | 1.23 | 5.43 | 1.68 |
| Eureka Seven | 5 | 4.00 | 4.00 | 30% | 4.00 | 1.23 | 5.00 | 1.54 |
| Kiddy Grade | 6 | 3.12 | 2.66 | 44% | 2.66 | 1.18 | 3.49 | 1.55 |
| The Sacred Blacksmith | 6 | 3.00 | 2.65 | 44% | 2.65 | 1.18 | 3.15 | 1.40 |
| Grenadier | 6 | 2.80 | 2.60 | 44% | 2.60 | 1.16 | 3.40 | 1.51 |
| G-on Riders | 6 | 3.00 | 2.59 | 44% | 2.59 | 1.15 | 2.87 | 1.27 |
| Ichiban Ushiro no Daimaou | 6 | 3.00 | 2.59 | 44% | 2.59 | 1.15 | 3.30 | 1.47 |
| Vandread | 5 | 3.89 | 3.73 | 30% | 3.73 | 1.15 | 4.94 | 1.52 |
| Mai-HiME | 5 | 3.88 | 3.71 | 30% | 3.71 | 1.14 | 4.84 | 1.49 |
| Code Geass Hangyaku no Lelouch Season 2 | 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 |
| Pumpkin Scissors | 6 | 2.75 | 2.53 | 44% | 2.53 | 1.13 | 3.18 | 1.41 |
| Needless | 6 | 3.00 | 2.50 | 44% | 2.50 | 1.11 | 2.86 | 1.27 |
| Tetsujin 28-gō | 6 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Mahou Shoujo Lyrical Nanoha A's | 5 | 3.75 | 3.53 | 30% | 3.53 | 1.09 | 4.18 | 1.29 |
| Interlude | 5 | 3.75 | 3.53 | 30% | 3.53 | 1.09 | 4.18 | 1.29 |
| Rozen Maiden | 5 | 3.75 | 3.53 | 30% | 3.53 | 1.09 | 4.61 | 1.42 |
| Digimon Tamers | 5 | 3.75 | 3.53 | 30% | 3.53 | 1.09 | 4.18 | 1.29 |
| Futakoi Alternative | 6 | 2.67 | 2.43 | 44% | 2.43 | 1.08 | 2.88 | 1.28 |
| Simoun | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Naruto Shippuuden (TV) | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Planetes | 5 | 3.67 | 3.43 | 30% | 3.43 | 1.06 | 4.31 | 1.33 |
| Kidou Senshi Gundam SEED | 5 | 3.73 | 3.42 | 30% | 3.42 | 1.06 | 4.60 | 1.42 |
| AIR GEAR | 6 | 2.75 | 2.34 | 44% | 2.34 | 1.04 | 2.78 | 1.24 |
| Saishu Heiki Kanojo | 5 | 3.60 | 3.36 | 30% | 3.36 | 1.04 | 4.54 | 1.40 |
| Seikai no Monshou | 5 | 3.58 | 3.26 | 30% | 3.26 | 1.01 | 4.49 | 1.38 |
| Koukaku Kidoutai S.A.C. 2nd GIG | 5 | 3.50 | 3.25 | 30% | 3.25 | 1.00 | 3.86 | 1.19 |
| Sekirei | 5 | 3.50 | 3.25 | 30% | 3.25 | 1.00 | 4.11 | 1.27 |
| Loveless (TV) | 5 | 3.50 | 3.25 | 30% | 3.25 | 1.00 | 3.43 | 1.06 |
| Blassreiter | 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 |
| RideBack | 6 | 2.50 | 2.25 | 44% | 2.25 | 1.00 | 3.11 | 1.38 |
| Tenkuu no Escaflowne | 5 | 3.56 | 3.23 | 30% | 3.23 | 1.00 | 5.06 | 1.56 |
| Hagane no Renkinjutsushi | 5 | 3.57 | 3.21 | 30% | 3.21 | 0.99 | 4.48 | 1.38 |
| Xenosaga - The Animation | 6 | 2.67 | 2.20 | 44% | 2.20 | 0.98 | 2.41 | 1.07 |
| Chikyuu Bouei Kigyou Dai-Guard | 5 | 3.33 | 3.10 | 30% | 3.10 | 0.96 | 3.54 | 1.09 |
| Gun Sword | 5 | 3.33 | 3.10 | 30% | 3.10 | 0.96 | 3.54 | 1.09 |
| Elfen Lied | 5 | 3.50 | 3.07 | 30% | 3.07 | 0.95 | 4.18 | 1.29 |
| Madlax | 5 | 3.25 | 3.03 | 30% | 3.03 | 0.94 | 3.68 | 1.14 |
