Vampire Hunter D
Rating Average: 3.0000Rating Stddev: 0.8660254037844385
Review Count: 8
Existing Best Bet #: 3.42600427043574
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.0000 - 0.8660254037844385 ) + ( 2.07944154167984 / 1.6094379124341 )
( 2.13397459621556 ) - 1.29202967422018
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.0000 - 0.433012701892219 ) - 0 ) * $similarity
( 2.56698729810778 - 0 ) * $similarity
2.56698729810778 * $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: 6 - Vampires, 1985, Movie, Fantasy, Action, Horror
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 |
|---|---|---|---|---|---|---|---|---|
| Vampire Hunter D: Bloodlust | 4 | 3.85 | 3.59 | 44% | 3.59 | 1.60 | 5.38 | 2.39 |
| Vampire Hunter | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Short Peace | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Biohunter | 4 | 3.00 | 2.50 | 44% | 2.50 | 1.11 | 2.86 | 1.27 |
| Death Note (live-action movie #1) | 4 | 2.50 | 2.25 | 44% | 2.25 | 1.00 | 2.43 | 1.08 |
| Tenku no Shiro Laputa | 3 | 4.00 | 4.00 | 25% | 4.00 | 1.00 | 5.11 | 1.28 |
| Chrono Crusade | 3 | 3.89 | 3.73 | 25% | 3.73 | 0.93 | 4.94 | 1.23 |
| Blood: The Last Vampire | 4 | 2.54 | 2.03 | 44% | 2.03 | 0.90 | 3.12 | 1.39 |
| Dance In The Vampire Bund | 4 | 2.25 | 2.03 | 44% | 2.03 | 0.90 | 2.68 | 1.19 |
| Interlude | 3 | 3.75 | 3.53 | 25% | 3.53 | 0.88 | 4.18 | 1.04 |
| Mahou Shoujo Lyrical Nanoha The MOVIE 1st | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Gekijō-ban Mahō Shōjo Madoka Magica Kōhen: Eien no Monogatari | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Kurenai no Buta | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.86 | 1.22 |
| Shiki | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.43 | 1.11 |
| One Piece: Karakuri Shiro no Mecha Kyohei | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Ginga Tetsudō no Yoru | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Kizumonogatari | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Gekijō-ban Mahō Shōjo Madoka Magica Zenpen: Hajimari no Monogatari | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Suzumiya Haruhi no Shoushitsu | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.68 | 1.17 |
| Fate/Stay Night: Heaven's Feel | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Slayers Premium | 3 | 3.67 | 3.43 | 25% | 3.43 | 0.86 | 3.88 | 0.97 |
| Shihaisha no Tasogare | 4 | 2.33 | 1.86 | 44% | 1.86 | 0.83 | 2.50 | 1.11 |
| Black Blood Brothers | 3 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 3.43 | 0.86 |
| Zetsuen no Tempest | 3 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 3.43 | 0.86 |
| Hagane no Renkinjutsushi | 3 | 3.57 | 3.21 | 25% | 3.21 | 0.80 | 4.48 | 1.12 |
| Eiga Inuyasha: Kagami no Naka no Mugenjou | 3 | 3.50 | 3.07 | 25% | 3.07 | 0.77 | 3.50 | 0.87 |
| Kurozuka | 4 | 2.25 | 1.71 | 44% | 1.71 | 0.76 | 2.02 | 0.90 |
| Mononoke Hime | 3 | 3.42 | 3.02 | 25% | 3.02 | 0.76 | 4.76 | 1.19 |
| Ninja Scroll | 3 | 3.42 | 2.93 | 25% | 2.93 | 0.73 | 4.26 | 1.07 |
| Eiga Inuyasha: Tenka Hadou no Ken | 3 | 3.33 | 2.86 | 25% | 2.86 | 0.72 | 3.07 | 0.77 |
| Blood Plus | 3 | 3.11 | 2.67 | 25% | 2.67 | 0.67 | 3.60 | 0.90 |
| Kamui no Ken | 4 | 2.00 | 2.00 | 44% | 1.50 | 0.67 | 2.00 | 0.89 |
| Bastard!! Ankoku no Hakai Kami | 3 | 3.09 | 2.59 | 25% | 2.59 | 0.65 | 3.58 | 0.90 |
| Eiga Inuyasha: Toki o Koeru Omoi | 3 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 2.87 | 0.72 |
| Rumik World: En Tripper | 3 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 2.87 | 0.72 |
| D.Gray-man | 3 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 2.87 | 0.72 |
| Boukyaku no Senritsu | 3 | 3.00 | 2.55 | 25% | 2.55 | 0.64 | 3.11 | 0.78 |
| Ao no Exorcist Movie | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Dragon Ball Z: Fukkatsu no Fusion!! Goku to Vegita | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Hellsing Ultimate | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Tokyo Ghoul √A | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Mononogatari S1 | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Eiga Inuyasha: Guren no Houraijima | 3 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.43 | 0.61 |
| Nyanpire The Animation | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Dragon Rider | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.43 | 0.86 |
| Solo Leveling S2 -Arise from the Shadow- | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Shingeki no Kyojin | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.43 | 0.86 |
| Chiisana Eiyuu: Kani to Tamago to Toumei Ningen | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Goblin Slayer: Goblin's Crown | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Break Blade | 3 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
