Katanagatari
Rating Average: 3.3333Rating Stddev: 0.9428090415820634
Review Count: 3
Existing Best Bet #: 3.07309715290392
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.3333 - 0.9428090415820634 ) + ( 1.09861228866811 / 1.6094379124341 )
( 2.39049095841794 ) - 0.682606194485985
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.3333 - 0.471404520791032 ) - 0 ) * $similarity
( 2.86189547920897 - 0 ) * $similarity
2.86189547920897 * $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 - TV, Historical, Action, Samurai, 2010, Action Comedy, Adventure, Comedy, Martial Arts
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 |
|---|---|---|---|---|---|---|---|---|
| Samurai Champloo | 7 | 3.33 | 3.00 | 60% | 3.00 | 1.81 | 4.03 | 2.44 |
| Naruto Shippuuden (TV) | 6 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Sarai-ya Goyou | 6 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.43 | 1.52 |
| Chrono Crusade | 5 | 3.89 | 3.73 | 30% | 3.73 | 1.15 | 4.94 | 1.52 |
| Trigun | 5 | 3.90 | 3.70 | 30% | 3.70 | 1.14 | 5.94 | 1.83 |
| Durarara!! | 5 | 3.75 | 3.53 | 30% | 3.53 | 1.09 | 4.18 | 1.29 |
| Basilisk - Kouga Ninpou Chou | 5 | 3.75 | 3.53 | 30% | 3.53 | 1.09 | 4.18 | 1.29 |
| Junketsu no Maria | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Hagane no Renkinjutsushi OVA (03): Shishou (Sensei) Monogatari | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Golden Kamuy 2 | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Shura No Toki | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.43 | 1.37 |
| Saiyuuki Reload Gunlock | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Fairy Tail | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Slayers Try | 5 | 3.69 | 3.39 | 30% | 3.39 | 1.05 | 4.68 | 1.44 |
| One Piece | 5 | 3.73 | 3.30 | 30% | 3.30 | 1.02 | 4.35 | 1.34 |
| Asu no Yoichi! | 6 | 2.50 | 2.25 | 44% | 2.25 | 1.00 | 3.11 | 1.38 |
| Ranma ½ | 5 | 3.44 | 3.03 | 30% | 3.03 | 0.93 | 4.41 | 1.36 |
| Afro Samurai: Resurrection | 6 | 2.33 | 2.10 | 44% | 2.10 | 0.93 | 2.54 | 1.13 |
| Zero no Tsukaima | 5 | 3.00 | 2.78 | 30% | 2.78 | 0.86 | 3.98 | 1.23 |
| Rupan Sansei: Shin Shiri-zu | 5 | 3.00 | 2.65 | 30% | 2.65 | 0.82 | 3.15 | 0.97 |
| Kenran Butoh Sai: The Mars Daybreak | 5 | 3.00 | 2.65 | 30% | 2.65 | 0.82 | 3.15 | 0.97 |
| Omamori Himari | 5 | 3.00 | 2.65 | 30% | 2.65 | 0.82 | 3.15 | 0.97 |
| Ichiban Ushiro no Daimaou | 5 | 3.00 | 2.59 | 30% | 2.59 | 0.80 | 3.30 | 1.02 |
| D.Gray-man | 5 | 3.00 | 2.59 | 30% | 2.59 | 0.80 | 2.87 | 0.88 |
| Full Metal Panic ~Fumoffu~ | 4 | 4.00 | 4.00 | 19% | 4.00 | 0.79 | 5.59 | 1.10 |
| Eureka Seven | 4 | 4.00 | 4.00 | 19% | 4.00 | 0.79 | 5.00 | 0.99 |
| Sunabouzu | 5 | 3.00 | 2.55 | 30% | 2.55 | 0.79 | 3.11 | 0.96 |
| Zero no Tsukaima: Futatsuki no Kishi | 5 | 2.86 | 2.54 | 30% | 2.54 | 0.78 | 3.43 | 1.06 |
| JoJo no Kimyou na Bouken: Stardust Crusaders | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.43 | 1.06 |
| Hakuoki | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Nanatsu no Taizai | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Drifters | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.43 | 1.06 |
| Arafo Otoko no Isekai Tsuhan | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Hyakka Ryouran Samurai Bride | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Needless | 5 | 3.00 | 2.50 | 30% | 2.50 | 0.77 | 2.86 | 0.88 |
| Benriya Saitou-san, Isekai ni Iku | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Selector Spread WIXOSS | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Hakuouki Hekketsuroku | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Persona 4 the Golden Animation | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Sekirei ~Pure Engagement~ | 5 | 3.00 | 2.50 | 30% | 2.50 | 0.77 | 2.86 | 0.88 |
| Hakuouki Season 2 | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Mushoku Tensei II - Isekai Ittara Honki Dasu (TV 3) | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Bakumatsu Kikansetsu Irohanihoheto | 5 | 2.67 | 2.43 | 30% | 2.43 | 0.75 | 2.88 | 0.89 |
| Juuni Kokuki | 4 | 3.90 | 3.75 | 19% | 3.75 | 0.74 | 5.03 | 0.99 |
| Vandread | 4 | 3.89 | 3.73 | 19% | 3.73 | 0.74 | 4.94 | 0.98 |
| School Rumble | 4 | 3.89 | 3.73 | 19% | 3.73 | 0.74 | 4.94 | 0.98 |
| Vandread The Second Stage | 4 | 3.80 | 3.60 | 19% | 3.60 | 0.71 | 4.40 | 0.87 |
| Cowboy Bebop | 4 | 3.81 | 3.55 | 19% | 3.55 | 0.70 | 5.74 | 1.13 |
| Rozen Maiden | 4 | 3.75 | 3.53 | 19% | 3.53 | 0.70 | 4.61 | 0.91 |
| Digimon Tamers | 4 | 3.75 | 3.53 | 19% | 3.53 | 0.70 | 4.18 | 0.83 |
