Black Jack Final
Rating Average: 4.0000Rating Stddev: 0
Review Count: 1
Existing Best Bet #: 4
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 4.0000 - 0 ) + ( 0 / 1.6094379124341 )
( 4 ) - 0
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 - 2005, OVA, Drama, Horror, Mystery, Modern, Seinen
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 |
|---|---|---|---|---|---|---|---|---|
| Rozen Maiden | 5 | 3.75 | 3.53 | 51% | 3.53 | 1.80 | 4.61 | 2.35 |
| Black Jack: Clinical Chart | 5 | 4.00 | 4.00 | 51% | 3.50 | 1.79 | 4.00 | 2.04 |
| Higurashi no Naku Koro ni Kai | 5 | 3.50 | 3.25 | 51% | 3.25 | 1.66 | 3.43 | 1.75 |
| Rozen Maiden ~Träumend~ | 5 | 3.33 | 3.10 | 51% | 3.10 | 1.58 | 3.54 | 1.81 |
| Uta Kata | 5 | 3.33 | 3.10 | 51% | 3.10 | 1.58 | 3.54 | 1.81 |
| Monster | 5 | 3.50 | 3.07 | 51% | 3.07 | 1.56 | 3.50 | 1.78 |
| Full Metal Panic! The Second Raid | 4 | 4.00 | 4.00 | 32% | 4.00 | 1.31 | 5.29 | 1.73 |
| Higurashi no Naku Koro ni: Nekogoroshi-hen | 5 | 3.00 | 3.00 | 51% | 2.50 | 1.28 | 3.00 | 1.53 |
| Higurashi no Naku Koro ni Rei | 5 | 3.00 | 3.00 | 51% | 2.50 | 1.28 | 3.00 | 1.53 |
| Suika | 5 | 3.00 | 3.00 | 51% | 2.50 | 1.28 | 3.00 | 1.53 |
| Jin-Roh | 4 | 3.92 | 3.78 | 32% | 3.78 | 1.23 | 5.18 | 1.69 |
| Kamichu! | 4 | 3.80 | 3.60 | 32% | 3.60 | 1.18 | 4.40 | 1.44 |
| Kimi ga Nozomu Eien - Haruka Route | 4 | 3.75 | 3.53 | 32% | 3.53 | 1.15 | 4.18 | 1.36 |
| Black Jack (1996) | 4 | 3.75 | 3.53 | 32% | 3.53 | 1.15 | 4.18 | 1.36 |
| Interlude | 4 | 3.75 | 3.53 | 32% | 3.53 | 1.15 | 4.18 | 1.36 |
| Higurashi no Naku Koro ni | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.68 | 1.53 |
| Aki-Sora | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Air TV | 4 | 3.67 | 3.43 | 32% | 3.43 | 1.12 | 4.31 | 1.41 |
| Karas | 4 | 3.67 | 3.43 | 32% | 3.43 | 1.12 | 3.88 | 1.27 |
| Wind: A Breath of Heart OVA | 6 | 2.00 | 2.00 | 73% | 1.50 | 1.10 | 2.00 | 1.47 |
| Jigoku Shoujo | 4 | 3.60 | 3.36 | 32% | 3.36 | 1.10 | 4.11 | 1.34 |
| Ningyo no Kizu | 4 | 3.50 | 3.25 | 32% | 3.25 | 1.06 | 3.43 | 1.12 |
| Aa! Megami-sama! (2005) OVA | 4 | 3.33 | 3.10 | 32% | 3.10 | 1.01 | 3.54 | 1.16 |
| Iriya no Sora, UFO no Natsu | 4 | 3.33 | 3.10 | 32% | 3.10 | 1.01 | 3.54 | 1.16 |
| I's Pure | 4 | 3.33 | 3.10 | 32% | 3.10 | 1.01 | 3.54 | 1.16 |
| Meitantei Conan | 4 | 3.20 | 2.71 | 32% | 2.71 | 0.88 | 3.22 | 1.05 |
| Lamune | 4 | 3.00 | 2.68 | 32% | 2.68 | 0.88 | 3.37 | 1.10 |
| Blood Plus | 4 | 3.11 | 2.67 | 32% | 2.67 | 0.87 | 3.60 | 1.18 |
| Cossette no Shouzou | 4 | 3.00 | 2.65 | 32% | 2.65 | 0.86 | 3.15 | 1.03 |
| .hack//Liminality | 4 | 3.00 | 2.65 | 32% | 2.65 | 0.86 | 3.15 | 1.03 |
| Tenjou Tenge: Ultimate Fight | 4 | 3.00 | 2.59 | 32% | 2.59 | 0.85 | 2.87 | 0.94 |
| Gallery Fake | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Gokukoku no Brynhildr | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Boku Dake ga Inai Machi | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.43 | 1.12 |
| Kino no Tabi: the Beautiful World - life goes on | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.43 | 1.12 |
| Tenjou Tenge:The Past Chapter | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| One: Kagayaku Kisetsu e | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Tokyo Ghoul √A | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Big Order TV & OVA | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| .hack//SIGN | 4 | 3.00 | 2.49 | 32% | 2.49 | 0.81 | 4.27 | 1.39 |
| Kanon: Kaza Hana | 4 | 2.60 | 2.36 | 32% | 2.36 | 0.77 | 3.11 | 1.02 |
| School Days (ONA) | 4 | 2.75 | 2.34 | 32% | 2.34 | 0.76 | 2.78 | 0.91 |
| Da Capo Second Season | 4 | 2.75 | 2.34 | 32% | 2.34 | 0.76 | 2.78 | 0.91 |
| Kimagure Orange Road: Ano hi ni Kaeritai | 3 | 4.00 | 4.00 | 18% | 4.00 | 0.73 | 5.00 | 0.92 |
| Koukaku Kidoutai STAND ALONE COMPLEX | 3 | 4.00 | 4.00 | 18% | 4.00 | 0.73 | 5.43 | 1.00 |
| Death Note (live-action movie #1) | 4 | 2.50 | 2.25 | 32% | 2.25 | 0.73 | 2.43 | 0.79 |
| Kodomo no Jikan (OVA) | 4 | 2.50 | 2.25 | 32% | 2.25 | 0.73 | 2.43 | 0.79 |
| King of Thorn | 4 | 2.50 | 2.25 | 32% | 2.25 | 0.73 | 2.43 | 0.79 |
| Elfen Lied - Special | 4 | 2.60 | 2.20 | 32% | 2.20 | 0.72 | 2.80 | 0.91 |
| Juuni Kokuki | 3 | 3.90 | 3.75 | 18% | 3.75 | 0.69 | 5.03 | 0.92 |
