Shinigami no Ballad
Rating Average: 2.5000Rating Stddev: 0.5
Review Count: 2
Existing Best Bet #: 2.43067655807339
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.5000 - 0.5 ) + ( 0.693147180559945 / 1.6094379124341 )
( 2 ) - 0.430676558073393
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.5000 - 0.25 ) - 0 ) * $similarity
( 2.25 - 0 ) * $similarity
2.25 * $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: 8 - 2006, TV, Fantasy, Drama, High School, Occult, Romance, Shinigami
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 |
|---|---|---|---|---|---|---|---|---|
| Bleach | 7 | 3.43 | 2.90 | 76% | 2.90 | 2.22 | 3.59 | 2.75 |
| Shounen Onmyouji | 6 | 4.00 | 4.00 | 56% | 3.50 | 1.97 | 4.43 | 2.49 |
| Nagasarete Airantou | 6 | 3.50 | 3.25 | 56% | 3.25 | 1.83 | 4.11 | 2.31 |
| Inukami | 6 | 2.83 | 2.49 | 56% | 2.49 | 1.40 | 3.26 | 1.83 |
| Rozen Maiden | 5 | 3.75 | 3.53 | 39% | 3.53 | 1.38 | 4.61 | 1.80 |
| Jigoku Shoujo Futakomori | 5 | 4.00 | 4.00 | 39% | 3.50 | 1.37 | 4.68 | 1.83 |
| Death Note | 5 | 4.00 | 4.00 | 39% | 3.50 | 1.37 | 4.86 | 1.90 |
| Saiunkoku Monogatari | 5 | 4.00 | 4.00 | 39% | 3.50 | 1.37 | 4.68 | 1.83 |
| Shuffle! | 5 | 3.67 | 3.43 | 39% | 3.43 | 1.34 | 4.31 | 1.68 |
| Jigoku Shoujo | 5 | 3.60 | 3.36 | 39% | 3.36 | 1.31 | 4.11 | 1.61 |
| Kanon (2006) | 5 | 3.60 | 3.36 | 39% | 3.36 | 1.31 | 4.11 | 1.61 |
| Asatte no Houkou | 5 | 3.50 | 3.25 | 39% | 3.25 | 1.27 | 3.86 | 1.51 |
| Naruto | 5 | 3.62 | 3.20 | 39% | 3.20 | 1.25 | 4.87 | 1.90 |
| Bokura ga Ita | 5 | 3.43 | 3.18 | 39% | 3.18 | 1.24 | 4.14 | 1.62 |
| Rozen Maiden ~Träumend~ | 5 | 3.33 | 3.10 | 39% | 3.10 | 1.21 | 3.54 | 1.38 |
| Ghost Hunt | 5 | 3.25 | 3.03 | 39% | 3.03 | 1.18 | 3.68 | 1.44 |
| Chaos;Head | 5 | 3.25 | 3.03 | 39% | 3.03 | 1.18 | 3.68 | 1.44 |
| Sumomomo Momomo ~ Chijou Saikyou no Yome | 5 | 3.20 | 3.00 | 39% | 3.00 | 1.17 | 3.80 | 1.48 |
| Code Geass Hangyaku no Lelouch | 5 | 3.29 | 2.94 | 39% | 2.94 | 1.15 | 3.79 | 1.48 |
| Yoake Mae Yori Ruri Iro Na | 6 | 2.00 | 2.00 | 56% | 2.00 | 1.12 | 3.00 | 1.69 |
| Kamisama Kazoku | 5 | 3.33 | 2.86 | 39% | 2.86 | 1.12 | 3.07 | 1.20 |
| Seto no Hanayome (TV) | 5 | 3.29 | 2.85 | 39% | 2.85 | 1.11 | 3.61 | 1.41 |
| Zero no Tsukaima | 5 | 3.00 | 2.78 | 39% | 2.78 | 1.08 | 3.98 | 1.56 |
| Kaze no Stigma | 5 | 3.17 | 2.72 | 39% | 2.72 | 1.06 | 3.38 | 1.32 |
| Karin | 5 | 3.00 | 2.68 | 39% | 2.68 | 1.05 | 3.37 | 1.32 |
| Omamori Himari | 5 | 3.00 | 2.65 | 39% | 2.65 | 1.03 | 3.15 | 1.23 |
| To Heart ~Remember My Memories~ | 5 | 3.00 | 2.59 | 39% | 2.59 | 1.01 | 2.87 | 1.12 |
| Ichiban Ushiro no Daimaou | 5 | 3.00 | 2.59 | 39% | 2.59 | 1.01 | 3.30 | 1.29 |
| Mamoru-kun ni Megami no Shukufuku wo! | 5 | 3.00 | 2.59 | 39% | 2.59 | 1.01 | 2.87 | 1.12 |
| Ouran Koko Host Club | 4 | 4.00 | 4.00 | 25% | 4.00 | 1.00 | 5.11 | 1.28 |
| Eureka Seven | 4 | 4.00 | 4.00 | 25% | 4.00 | 1.00 | 5.00 | 1.25 |
| Sora no Otoshimono | 5 | 3.00 | 2.55 | 39% | 2.55 | 1.00 | 3.11 | 1.21 |
| Da Capo II | 5 | 3.00 | 2.50 | 39% | 2.50 | 0.98 | 2.43 | 0.95 |
| Kekkaishi | 5 | 3.00 | 2.50 | 39% | 2.50 | 0.98 | 2.43 | 0.95 |
| Kannazuki no Miko | 5 | 3.00 | 2.50 | 39% | 2.50 | 0.98 | 2.43 | 0.95 |
| Akikan! | 5 | 3.00 | 2.50 | 39% | 2.50 | 0.98 | 2.43 | 0.95 |
| Da Capo | 5 | 2.80 | 2.43 | 39% | 2.43 | 0.95 | 3.05 | 1.19 |
| Shoujo Kakumei Utena | 4 | 3.83 | 3.65 | 25% | 3.65 | 0.91 | 5.26 | 1.31 |
| BECK | 4 | 3.83 | 3.65 | 25% | 3.65 | 0.91 | 4.57 | 1.14 |
| Fruits Basket | 4 | 3.85 | 3.61 | 25% | 3.61 | 0.90 | 5.23 | 1.31 |
| Suzuka | 4 | 3.80 | 3.60 | 25% | 3.60 | 0.90 | 4.40 | 1.10 |
| Kamichu! | 4 | 3.80 | 3.60 | 25% | 3.60 | 0.90 | 4.40 | 1.10 |
| Suzumiya Haruhi no Yuutsu | 4 | 3.80 | 3.60 | 25% | 3.60 | 0.90 | 4.83 | 1.21 |
| Princess Tutu | 4 | 3.75 | 3.53 | 25% | 3.53 | 0.88 | 4.18 | 1.04 |
| Paradise Kiss | 4 | 3.75 | 3.53 | 25% | 3.53 | 0.88 | 4.18 | 1.04 |
| Gakuen Heaven | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Mahō Tsukai no Yome Season 2 | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Simoun | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Aria the Natural | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Iroduku Sekai no Ashita kara | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
