Koutetsu Tenshi Kurumi
Rating Average: 3.4000Rating Stddev: 0.8
Review Count: 5
Existing Best Bet #: 3.6
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.4000 - 0.8 ) + ( 1.6094379124341 / 1.6094379124341 )
( 2.6 ) - 1
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.4000 - 0.4 ) - 0 ) * $similarity
( 3 - 0 ) * $similarity
3 * $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: 8 - Artificial Girls, Fan Service, Historical, Mecha, TV, Kawaii, 1999, Action Comedy
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 |
|---|---|---|---|---|---|---|---|---|
| G-on Riders | 5 | 3.00 | 2.59 | 39% | 2.59 | 1.01 | 2.87 | 1.12 |
| Junketsu no Maria | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Cutie Honey (TV) | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Mahoromatic: Motto Utsukushii Mono | 4 | 3.60 | 3.36 | 25% | 3.36 | 0.84 | 4.11 | 1.03 |
| Mahoromatic | 4 | 3.57 | 3.21 | 25% | 3.21 | 0.80 | 4.05 | 1.01 |
| Chobits | 4 | 3.56 | 3.16 | 25% | 3.16 | 0.79 | 4.82 | 1.20 |
| Bigguou | 4 | 3.00 | 2.62 | 25% | 2.62 | 0.66 | 3.45 | 0.86 |
| Koutetsu Tenshi Kurumi 2-shiki | 4 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 2.87 | 0.72 |
| Dokkoida | 4 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Akikan! | 4 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.43 | 0.61 |
| Seraphim Call | 4 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Needless | 4 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.86 | 0.72 |
| Machine-Doll wa Kizutsukanai | 5 | 2.00 | 2.00 | 39% | 1.50 | 0.59 | 2.00 | 0.78 |
| Full Metal Panic ~Fumoffu~ | 3 | 4.00 | 4.00 | 14% | 4.00 | 0.56 | 5.59 | 0.79 |
| Angel Links | 4 | 2.62 | 2.20 | 25% | 2.20 | 0.55 | 3.06 | 0.77 |
| Vandread | 3 | 3.89 | 3.73 | 14% | 3.73 | 0.52 | 4.94 | 0.69 |
| Orphen | 3 | 3.85 | 3.67 | 14% | 3.67 | 0.52 | 5.08 | 0.71 |
| Great Teacher Onizuka | 3 | 3.83 | 3.65 | 14% | 3.65 | 0.51 | 5.00 | 0.70 |
| Koikoi 7 | 4 | 2.25 | 2.03 | 25% | 2.03 | 0.51 | 2.68 | 0.67 |
| Vandread The Second Stage | 3 | 3.80 | 3.60 | 14% | 3.60 | 0.51 | 4.40 | 0.62 |
| Suzumiya Haruhi no Yuutsu | 3 | 3.80 | 3.60 | 14% | 3.60 | 0.51 | 4.83 | 0.68 |
| Ichigeki Sacchuu!! Hoihoi-san | 3 | 3.75 | 3.53 | 14% | 3.53 | 0.50 | 4.18 | 0.59 |
| Eden's Bowy | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.43 | 0.62 |
| Haiyore! Nyaruko-san W | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Tengen Toppa Gurren-lagann | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.68 | 0.66 |
| Hagure Yuusha no Aesthetica | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Sakura Taisen: Gouka Kenran | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Steel Angel Kurumi Encore | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.43 | 0.62 |
| Bubblegum Crisis Tokyo 2040 | 3 | 3.70 | 3.47 | 14% | 3.47 | 0.49 | 4.67 | 0.66 |
| Gokudo-kun Manyuki | 3 | 3.67 | 3.43 | 14% | 3.43 | 0.48 | 4.31 | 0.61 |
| Saber Marionette J to X | 3 | 3.67 | 3.43 | 14% | 3.43 | 0.48 | 3.88 | 0.55 |
| Mugen no Ryvius | 3 | 3.60 | 3.36 | 14% | 3.36 | 0.47 | 4.11 | 0.58 |
| Cardcaptor Sakura | 3 | 3.65 | 3.30 | 14% | 3.30 | 0.46 | 4.90 | 0.69 |
| Nagasarete Airantou | 3 | 3.50 | 3.25 | 14% | 3.25 | 0.46 | 4.11 | 0.58 |
| Loveless (TV) | 3 | 3.50 | 3.25 | 14% | 3.25 | 0.46 | 3.43 | 0.48 |
| Gravion | 3 | 3.50 | 3.25 | 14% | 3.25 | 0.46 | 3.43 | 0.48 |
| Rurouni Kenshin: Meiji Kenkaku Romantan | 3 | 3.62 | 3.24 | 14% | 3.24 | 0.46 | 4.95 | 0.70 |
| Hagane no Renkinjutsushi | 3 | 3.57 | 3.21 | 14% | 3.21 | 0.45 | 4.48 | 0.63 |
| Kido Senkan Nadesico | 3 | 3.60 | 3.20 | 14% | 3.20 | 0.45 | 4.23 | 0.59 |
| Di Gi Charat | 3 | 3.58 | 3.11 | 14% | 3.11 | 0.44 | 4.17 | 0.59 |
| Chikyuu Bouei Kigyou Dai-Guard | 3 | 3.33 | 3.10 | 14% | 3.10 | 0.44 | 3.54 | 0.50 |
| Rozen Maiden ~Träumend~ | 3 | 3.33 | 3.10 | 14% | 3.10 | 0.44 | 3.54 | 0.50 |
| Samurai Champloo | 3 | 3.33 | 3.00 | 14% | 3.00 | 0.42 | 4.03 | 0.57 |
| Code Geass Hangyaku no Lelouch | 3 | 3.29 | 2.94 | 14% | 2.94 | 0.41 | 3.79 | 0.53 |
| Aa! Megami-sama: Chichai tte Koto wa Benri da Ne | 3 | 3.33 | 2.91 | 14% | 2.91 | 0.41 | 4.03 | 0.57 |
| Bleach | 3 | 3.43 | 2.90 | 14% | 2.90 | 0.41 | 3.59 | 0.50 |
| Dual! Paralle Lunlun Monogatari | 3 | 3.15 | 2.89 | 14% | 2.89 | 0.41 | 4.21 | 0.59 |
| Katanagatari | 3 | 3.33 | 2.86 | 14% | 2.86 | 0.40 | 3.07 | 0.43 |
| Zero no Tsukaima | 3 | 3.00 | 2.78 | 14% | 2.78 | 0.39 | 3.98 | 0.56 |
| Sky Girls (TV) | 4 | 2.00 | 2.00 | 25% | 1.50 | 0.38 | 2.68 | 0.67 |
