Dragon Ball Grand Tour
Rating Average: 2.2857Rating Stddev: 1.2777531299998799
Review Count: 7
Existing Best Bet #: 2.21700882512229
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.2857 - 1.2777531299998799 ) + ( 1.94591014905531 / 1.6094379124341 )
( 1.00794687000012 ) - 1.20906195512217
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.2857 - 0.63887656499994 ) - 0 ) * $similarity
( 1.64682343500006 - 0 ) * $similarity
1.64682343500006 * $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: 10 - Action, Adventure, Fighting, Genie, 1997, 1996, 1995, TV, Fantasy, Sci-Fi
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 |
|---|---|---|---|---|---|---|---|---|
| Dragon Ball Z | 9 | 2.67 | 2.13 | 81% | 2.13 | 1.72 | 3.27 | 2.65 |
| Mahou Shoujo Lyrical Nanoha | 6 | 3.75 | 3.53 | 36% | 3.53 | 1.27 | 4.18 | 1.50 |
| Mahou Shoujo Lyrical Nanoha A's | 6 | 3.75 | 3.53 | 36% | 3.53 | 1.27 | 4.18 | 1.50 |
| Legend of the Galactic Heroes | 6 | 3.67 | 3.43 | 36% | 3.43 | 1.24 | 3.88 | 1.40 |
| Kiba | 6 | 3.50 | 3.25 | 36% | 3.25 | 1.17 | 3.43 | 1.24 |
| Erementar Gerad (TV) | 6 | 3.00 | 2.59 | 36% | 2.59 | 0.93 | 2.87 | 1.03 |
| Scrapped Princess | 5 | 3.88 | 3.71 | 25% | 3.71 | 0.93 | 4.84 | 1.21 |
| Boukyaku no Senritsu | 6 | 3.00 | 2.55 | 36% | 2.55 | 0.92 | 3.11 | 1.12 |
| Needless | 6 | 3.00 | 2.50 | 36% | 2.50 | 0.90 | 2.86 | 1.03 |
| Digimon Tamers | 5 | 3.75 | 3.53 | 25% | 3.53 | 0.88 | 4.18 | 1.04 |
| Interlude | 5 | 3.75 | 3.53 | 25% | 3.53 | 0.88 | 4.18 | 1.04 |
| Mahoujin GuruGuru | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Avatar: The Last Airbender - Season 1 | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.43 | 1.11 |
| Shining Tears x Wind | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Mahou Shoujo Lyrical Nanoha The MOVIE 1st | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Avatar: The Last Airbender - Season 3 | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.68 | 1.17 |
| Naruto Shippuuden (TV) | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Saiyuuki Reload Gunlock | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Avatar: The Last Airbender - Season 2 | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Saber Marionette J | 5 | 3.64 | 3.40 | 25% | 3.40 | 0.85 | 4.80 | 1.20 |
| Slayers Try | 5 | 3.69 | 3.39 | 25% | 3.39 | 0.85 | 4.68 | 1.17 |
| Mahou Shoujo Lyrical Nanoha StrikerS | 6 | 2.75 | 2.34 | 36% | 2.34 | 0.84 | 2.78 | 1.00 |
| Hai to Gensou no Grimgar | 5 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 3.43 | 0.86 |
| Mousou Dairinin | 5 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 3.43 | 0.86 |
| Log Horizon | 6 | 2.50 | 2.25 | 36% | 2.25 | 0.81 | 2.43 | 0.88 |
| Tenkuu no Escaflowne | 5 | 3.56 | 3.23 | 25% | 3.23 | 0.81 | 5.06 | 1.26 |
| Slayers | 5 | 3.57 | 3.21 | 25% | 3.21 | 0.80 | 4.73 | 1.18 |
| Naruto | 5 | 3.62 | 3.20 | 25% | 3.20 | 0.80 | 4.87 | 1.22 |
| Chikyuu Bouei Kigyou Dai-Guard | 5 | 3.33 | 3.10 | 25% | 3.10 | 0.77 | 3.54 | 0.89 |
| Tears to Tiara | 5 | 3.25 | 3.03 | 25% | 3.03 | 0.76 | 3.68 | 0.92 |
| Shinpi no Sekai El Hazard | 5 | 3.44 | 3.00 | 25% | 3.00 | 0.75 | 4.34 | 1.09 |
| Shin Seiki Evangelion | 5 | 3.38 | 2.93 | 25% | 2.93 | 0.73 | 4.86 | 1.22 |
| Isekai no Seikishi Monogatari | 5 | 3.33 | 2.86 | 25% | 2.86 | 0.72 | 3.07 | 0.77 |
| Ninja Scroll Dragon Gem | 5 | 3.33 | 2.86 | 25% | 2.86 | 0.72 | 3.07 | 0.77 |
| s-CRY-ed | 5 | 3.22 | 2.83 | 25% | 2.83 | 0.71 | 3.80 | 0.95 |
| Shin Kidou Senki Gundam W | 5 | 3.29 | 2.81 | 25% | 2.81 | 0.70 | 4.47 | 1.12 |
| Kaze no Stigma | 5 | 3.17 | 2.72 | 25% | 2.72 | 0.68 | 3.38 | 0.85 |
| The Sacred Blacksmith | 5 | 3.00 | 2.65 | 25% | 2.65 | 0.66 | 3.15 | 0.79 |
| .hack//Tasogare no Udewa Densetsu | 5 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 3.30 | 0.82 |
| Ichiban Ushiro no Daimaou | 5 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 3.30 | 0.82 |
| G-on Riders | 5 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 2.87 | 0.72 |
| Read or Die - TV | 4 | 4.00 | 4.00 | 16% | 4.00 | 0.64 | 5.11 | 0.82 |
| Eureka Seven | 4 | 4.00 | 4.00 | 16% | 4.00 | 0.64 | 5.00 | 0.80 |
| Ranma ½ OVA | 4 | 4.00 | 4.00 | 16% | 4.00 | 0.64 | 5.11 | 0.82 |
| High School of the Dead | 5 | 3.00 | 2.55 | 25% | 2.55 | 0.64 | 3.11 | 0.78 |
| Sunabouzu | 5 | 3.00 | 2.55 | 25% | 2.55 | 0.64 | 3.11 | 0.78 |
| Pumpkin Scissors | 5 | 2.75 | 2.53 | 25% | 2.53 | 0.63 | 3.18 | 0.79 |
| Selector Spread WIXOSS | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Patapata Hikousen no Bouken | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.43 | 0.86 |
| Persona 4: The Animation | 5 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.43 | 0.61 |
