Vampire Hunter D: Bloodlust
Rating Average: 3.8519Rating Stddev: 0.523782800878924
Review Count: 27
Existing Best Bet #: 5.37593578257903
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.8519 - 0.523782800878924 ) + ( 3.29583686600433 / 1.6094379124341 )
( 3.32811719912108 ) - 2.04781858345796
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.8519 - 0.261891400439462 ) - 0 ) * $similarity
( 3.59000859956054 - 0 ) * $similarity
3.59000859956054 * $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 - Horror, Movie, Vampires, Dark, Sci-Fi, Sequel, Violent, Underworld, Action, 2000
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 |
|---|---|---|---|---|---|---|---|---|
| Koukaku Kidoutai 2: Innocence | 6 | 3.50 | 3.25 | 36% | 3.25 | 1.17 | 3.86 | 1.39 |
| Neon Genesis Evangelion: The End of Evangelion | 6 | 3.40 | 3.00 | 36% | 3.00 | 1.08 | 4.28 | 1.54 |
| Chrono Crusade | 5 | 3.89 | 3.73 | 25% | 3.73 | 0.93 | 4.94 | 1.23 |
| Psycho-Pass: Sinners of the System | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Casshern: The Last Day on Earth | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Mardock Scramble: The First Compression | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Afro Samurai: Resurrection | 6 | 2.33 | 2.10 | 36% | 2.10 | 0.76 | 2.54 | 0.92 |
| Dance In The Vampire Bund | 6 | 2.25 | 2.03 | 36% | 2.03 | 0.73 | 2.68 | 0.96 |
| Ima Soko ni Iru Boku | 5 | 3.33 | 2.86 | 25% | 2.86 | 0.72 | 3.07 | 0.77 |
| Armitage: Dual Matrix | 5 | 3.33 | 2.86 | 25% | 2.86 | 0.72 | 3.07 | 0.77 |
| Yami No Matsuei | 5 | 3.29 | 2.71 | 25% | 2.71 | 0.68 | 3.33 | 0.83 |
| Blood Plus | 5 | 3.11 | 2.67 | 25% | 2.67 | 0.67 | 3.60 | 0.90 |
| Full Metal Panic! The Second Raid | 4 | 4.00 | 4.00 | 16% | 4.00 | 0.64 | 5.29 | 0.85 |
| Code Geass Hangyaku no Lelouch Season 2 | 5 | 3.00 | 2.55 | 25% | 2.55 | 0.64 | 3.11 | 0.78 |
| High School of the Dead | 5 | 3.00 | 2.55 | 25% | 2.55 | 0.64 | 3.11 | 0.78 |
| Akira | 5 | 3.05 | 2.50 | 25% | 2.50 | 0.63 | 3.85 | 0.96 |
| Evangelion Shin Gekijouban: Ha | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.43 | 0.86 |
| Short Peace | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Psycho-Pass 3: First Inspector | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Biohunter | 5 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.86 | 0.72 |
| Psycho-Pass (Movie) | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Blue Gender: The Warrior | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Digimon Adventure: Bokura no War Game | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| H.O.T.D: Drifters of the Dead | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Mardock Scramble: The Second Combustion | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Kurozuka | 6 | 2.25 | 1.71 | 36% | 1.71 | 0.61 | 2.02 | 0.73 |
| Interlude | 4 | 3.75 | 3.53 | 16% | 3.53 | 0.57 | 4.18 | 0.67 |
| MEMORIES | 4 | 3.75 | 3.53 | 16% | 3.53 | 0.57 | 4.18 | 0.67 |
| King of Thorn | 5 | 2.50 | 2.25 | 25% | 2.25 | 0.56 | 2.43 | 0.61 |
| Gekijō-ban Mahō Shōjo Madoka Magica Kōhen: Eien no Monogatari | 4 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Suzumiya Haruhi no Shoushitsu | 4 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.68 | 0.75 |
| Psycho-Pass 3 | 4 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Kiseijū: Sei no Kakuritsu | 4 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Bubblegum Crisis Tokyo 2040 | 4 | 3.70 | 3.47 | 16% | 3.47 | 0.56 | 4.67 | 0.75 |
| Kaze no Tani no Nausicaa | 4 | 3.78 | 3.46 | 16% | 3.46 | 0.55 | 4.51 | 0.72 |
| Trinity Blood | 5 | 2.78 | 2.21 | 25% | 2.21 | 0.55 | 3.01 | 0.75 |
| X-Men | 4 | 3.50 | 3.25 | 16% | 3.25 | 0.52 | 3.43 | 0.55 |
| Gleipnir | 4 | 3.50 | 3.25 | 16% | 3.25 | 0.52 | 3.43 | 0.55 |
| Kiba | 4 | 3.50 | 3.25 | 16% | 3.25 | 0.52 | 3.43 | 0.55 |
| Blood: The Last Vampire | 5 | 2.54 | 2.03 | 25% | 2.03 | 0.51 | 3.12 | 0.78 |
| 3x3 Eyes | 4 | 3.50 | 3.16 | 16% | 3.16 | 0.51 | 4.26 | 0.68 |
| Kara no Kyoukai | 4 | 3.33 | 3.10 | 16% | 3.10 | 0.50 | 3.54 | 0.57 |
| Elfen Lied | 4 | 3.50 | 3.07 | 16% | 3.07 | 0.49 | 4.18 | 0.67 |
| Seikai no Senki | 4 | 3.50 | 3.07 | 16% | 3.07 | 0.49 | 3.50 | 0.56 |
| Noir | 4 | 3.50 | 3.05 | 16% | 3.05 | 0.49 | 4.23 | 0.68 |
| Koukaku Kidoutai | 4 | 3.44 | 2.97 | 16% | 2.97 | 0.48 | 4.23 | 0.68 |
| Shin Seiki Evangelion | 4 | 3.38 | 2.93 | 16% | 2.93 | 0.47 | 4.86 | 0.78 |
| Shihaisha no Tasogare | 5 | 2.33 | 1.86 | 25% | 1.86 | 0.47 | 2.50 | 0.63 |
| Blue Gender | 5 | 2.33 | 1.78 | 25% | 1.78 | 0.45 | 2.34 | 0.59 |
| Kiddy Grade | 4 | 3.12 | 2.66 | 16% | 2.66 | 0.43 | 3.49 | 0.56 |
