Fate/Zero
Rating Average: 4.0000Rating Stddev: 0
Review Count: 2
Existing Best Bet #: 4.43067655807339
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 4.0000 - 0 ) + ( 0.693147180559945 / 1.6094379124341 )
( 4 ) - 0.430676558073393
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 4.0000 - 0 ) - 0.5 ) * $similarity
( 4 - 0.5 ) * $similarity
3.5 * $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: 7 - 2011, Action, TV, Fantasy, Modern, Dark, Prequel
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 |
|---|---|---|---|---|---|---|---|---|
| X (TV) | 5 | 3.75 | 3.47 | 51% | 3.47 | 1.77 | 4.91 | 2.51 |
| X-Men | 5 | 3.50 | 3.25 | 51% | 3.25 | 1.66 | 3.43 | 1.75 |
| Puella Magi Madoka Magica (TV) | 5 | 3.50 | 3.25 | 51% | 3.25 | 1.66 | 3.86 | 1.97 |
| Loveless (TV) | 5 | 3.50 | 3.25 | 51% | 3.25 | 1.66 | 3.43 | 1.75 |
| Persona 4: The Animation | 5 | 3.00 | 2.50 | 51% | 2.50 | 1.28 | 2.43 | 1.24 |
| C: The Money of Soul and Possibility Control | 5 | 2.67 | 2.43 | 51% | 2.43 | 1.24 | 2.88 | 1.47 |
| Juuni Kokuki | 4 | 3.90 | 3.75 | 32% | 3.75 | 1.22 | 5.03 | 1.64 |
| Chrono Crusade | 4 | 3.89 | 3.73 | 32% | 3.73 | 1.22 | 4.94 | 1.61 |
| Mai-HiME | 4 | 3.88 | 3.71 | 32% | 3.71 | 1.21 | 4.84 | 1.58 |
| Interlude | 4 | 3.75 | 3.53 | 32% | 3.53 | 1.15 | 4.18 | 1.36 |
| Rozen Maiden | 4 | 3.75 | 3.53 | 32% | 3.53 | 1.15 | 4.61 | 1.50 |
| Rumic Theater | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Jigoku Shoujo Futakomori | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.68 | 1.53 |
| Shakugan no Shana II | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.43 | 1.45 |
| Akiba Maid Sensou | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Wanpanman OVAs & Specials | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Fate/Zero 2 | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Hunter X Hunter (2011) | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Hanamonogatari | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Little Witch Academia TV | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Kemono Jihen | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Legend of Basara | 4 | 3.67 | 3.43 | 32% | 3.43 | 1.12 | 3.88 | 1.27 |
| Jigoku Shoujo | 4 | 3.60 | 3.36 | 32% | 3.36 | 1.10 | 4.11 | 1.34 |
| Gunslinger Girl | 4 | 3.67 | 3.33 | 32% | 3.33 | 1.09 | 4.37 | 1.43 |
| Kami nomi zo Shiru Sekai II | 4 | 3.50 | 3.25 | 32% | 3.25 | 1.06 | 3.86 | 1.26 |
| Mawaru Penguindrum | 4 | 3.50 | 3.25 | 32% | 3.25 | 1.06 | 3.43 | 1.12 |
| Re:CREATORS | 4 | 3.50 | 3.25 | 32% | 3.25 | 1.06 | 3.43 | 1.12 |
| To Aru Majutsu no Index II | 4 | 3.50 | 3.25 | 32% | 3.25 | 1.06 | 3.43 | 1.12 |
| Hagane no Renkinjutsushi | 4 | 3.57 | 3.21 | 32% | 3.21 | 1.05 | 4.48 | 1.46 |
| Naruto | 4 | 3.62 | 3.20 | 32% | 3.20 | 1.04 | 4.87 | 1.59 |
| 3x3 Eyes | 4 | 3.50 | 3.16 | 32% | 3.16 | 1.03 | 4.26 | 1.39 |
| To Aru Kagaku no Railgun | 4 | 3.33 | 3.10 | 32% | 3.10 | 1.01 | 3.98 | 1.30 |
| Monster | 4 | 3.50 | 3.07 | 32% | 3.07 | 1.00 | 3.50 | 1.14 |
| sola | 4 | 3.40 | 3.00 | 32% | 3.00 | 0.98 | 3.60 | 1.18 |
| Rekka no Honoo | 4 | 3.36 | 2.92 | 32% | 2.92 | 0.95 | 3.97 | 1.30 |
| Bleach | 4 | 3.43 | 2.90 | 32% | 2.90 | 0.95 | 3.59 | 1.17 |
| Witch Hunter Robin | 4 | 3.12 | 2.73 | 32% | 2.73 | 0.89 | 3.64 | 1.19 |
| Fate/stay night | 4 | 3.14 | 2.73 | 32% | 2.73 | 0.89 | 3.52 | 1.15 |
| Blood Plus | 4 | 3.11 | 2.67 | 32% | 2.67 | 0.87 | 3.60 | 1.18 |
| Boukyaku no Senritsu | 4 | 3.00 | 2.55 | 32% | 2.55 | 0.83 | 3.11 | 1.01 |
| Big Order TV & OVA | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Tiger and Bunny | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Selector Spread WIXOSS | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Durarara!! x2 Sho | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Isekai de Cheat Skill o Te ni Shita Ore wa, Genjitsu Sekai o mo Musousuru | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Kuroshitsuji II | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Sekirei ~Pure Engagement~ | 4 | 3.00 | 2.50 | 32% | 2.50 | 0.82 | 2.86 | 0.93 |
| Ore, Twintail ni Narimasu | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Nobunagun | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Tenjou Tenge:The Past Chapter | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
