Black Lagoon Roberta's Blood Trail
Rating Average: 3.0000Rating Stddev: 0
Review Count: 1
Existing Best Bet #: 3
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.0000 - 0 ) + ( 0 / 1.6094379124341 )
( 3 ) - 0
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.0000 - 0 ) - 0.5 ) * $similarity
( 3 - 0.5 ) * $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: 9 - 2010, OVA, Modern, Action, Adventure, Gun-action, Violent, 2011, Assassin(s)
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 |
|---|---|---|---|---|---|---|---|---|
| Black Lagoon | 5 | 3.80 | 3.60 | 30% | 3.60 | 1.11 | 4.40 | 1.36 |
| Gunslinger Girl | 5 | 3.67 | 3.33 | 30% | 3.33 | 1.03 | 4.37 | 1.35 |
| Full Metal Panic! The Second Raid | 4 | 4.00 | 4.00 | 19% | 4.00 | 0.79 | 5.29 | 1.05 |
| Cobra The Animation - Time Drive | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Jormungand: Perfect Order | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| CANAAN | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Hellsing Ultimate | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| H.O.T.D: Drifters of the Dead | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Angel Beats! | 5 | 2.91 | 2.46 | 30% | 2.46 | 0.76 | 3.50 | 1.08 |
| Futakoi Alternative | 5 | 2.67 | 2.43 | 30% | 2.43 | 0.75 | 2.88 | 0.89 |
| Kite Liberator | 5 | 2.67 | 2.43 | 30% | 2.43 | 0.75 | 2.88 | 0.89 |
| Chrono Crusade | 4 | 3.89 | 3.73 | 19% | 3.73 | 0.74 | 4.94 | 0.98 |
| Durarara!! | 4 | 3.75 | 3.53 | 19% | 3.53 | 0.70 | 4.18 | 0.83 |
| Jormungand | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Gunslinger Girl -Il Teatrino- | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Akiba Maid Sensou | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Black Lagoon: The Second Barrage | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.68 | 0.92 |
| Lupin the IIIrd: Chikemuri no Ishikawa Goemon | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Naruto Shippuuden (TV) | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Wanpanman OVAs & Specials | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Kidou Senshi Gundam UC | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.43 | 0.88 |
| Gunslinger Girl Il Teatrino OVA | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Hagane no Renkinjutsushi OVA (03): Shishou (Sensei) Monogatari | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Karas | 4 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 3.88 | 0.77 |
| Gunsmith Cats | 4 | 3.71 | 3.42 | 19% | 3.42 | 0.68 | 4.77 | 0.94 |
| Phantom the Animation | 6 | 2.00 | 2.00 | 44% | 1.50 | 0.67 | 2.43 | 1.08 |
| X-Men | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Kikou Ryohei Mellowlink (OVA) | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Rupan Sansei: Walther P38 - In Gedenken an die Walther P38 | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Crying Freeman | 5 | 2.67 | 2.04 | 30% | 2.04 | 0.63 | 2.10 | 0.65 |
| Iria Zeiram the Animation | 4 | 3.50 | 3.16 | 19% | 3.16 | 0.63 | 4.26 | 0.84 |
| 3x3 Eyes | 4 | 3.50 | 3.16 | 19% | 3.16 | 0.63 | 4.26 | 0.84 |
| To Aru Kagaku no Railgun | 4 | 3.33 | 3.10 | 19% | 3.10 | 0.61 | 3.98 | 0.79 |
| Madlax | 4 | 3.25 | 3.03 | 19% | 3.03 | 0.60 | 3.68 | 0.73 |
| Mezzo Forte | 4 | 3.25 | 2.92 | 19% | 2.92 | 0.58 | 3.88 | 0.77 |
| Ima Soko ni Iru Boku | 4 | 3.33 | 2.86 | 19% | 2.86 | 0.57 | 3.07 | 0.61 |
| Megazone 23 | 4 | 3.17 | 2.82 | 19% | 2.82 | 0.56 | 3.59 | 0.71 |
| Meitantei Conan | 4 | 3.20 | 2.71 | 19% | 2.71 | 0.54 | 3.22 | 0.64 |
| Ichiban Ushiro no Daimaou | 4 | 3.00 | 2.59 | 19% | 2.59 | 0.51 | 3.30 | 0.65 |
| High School of the Dead | 4 | 3.00 | 2.55 | 19% | 2.55 | 0.50 | 3.11 | 0.61 |
| Kite | 4 | 3.05 | 2.55 | 19% | 2.55 | 0.50 | 3.94 | 0.78 |
| Nurse Witch Komugi-chan Magikarte | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.43 | 0.68 |
| Rupan Sansei: Green vs Red | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.43 | 0.68 |
| Black Lagoon Omake | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.43 | 0.68 |
| Sword Art Online II | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| The Chronicles of Riddick: Dark Fury | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Break Blade | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Ookami-san to Shichinin no Nakama-tachi | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| JoJo no Kimyou na Bouken: Stardust Crusaders Egypt-hen | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| TO | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
