School Days: Magical Heart Kokoro-chan
Rating Average: 2.7500Rating Stddev: 0.82915619758885
Review Count: 4
Existing Best Bet #: 2.78219691855794
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.7500 - 0.82915619758885 ) + ( 1.38629436111989 / 1.6094379124341 )
( 1.92084380241115 ) - 0.861353116146786
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.7500 - 0.414578098794425 ) - 0 ) * $similarity
( 2.33542190120558 - 0 ) * $similarity
2.33542190120558 * $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: 12 - 2008, OVA, Action, Comedy, Ecchi, Fan Service, Mahou Shoujo, Violent, Parody, Modern, Seinen, Psychics
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 |
|---|---|---|---|---|---|---|---|---|
| Haiyore! Nyaruko-san OVA | 7 | 4.00 | 4.00 | 34% | 3.50 | 1.19 | 4.00 | 1.36 |
| Usagichan De Cue | 7 | 3.60 | 3.36 | 34% | 3.36 | 1.14 | 4.11 | 1.40 |
| Honoo no Labyrinth | 7 | 3.25 | 3.03 | 34% | 3.03 | 1.03 | 3.68 | 1.25 |
| Suzumiya Haruhi no Yuutsu | 6 | 3.80 | 3.60 | 25% | 3.60 | 0.90 | 4.83 | 1.21 |
| FLCL | 6 | 3.74 | 3.42 | 25% | 3.42 | 0.85 | 5.36 | 1.34 |
| Nurse Witch Komugi-chan Magikarte | 7 | 3.00 | 3.00 | 34% | 2.50 | 0.85 | 3.43 | 1.17 |
| Ikkitousen: Great Guardians | 6 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 3.43 | 0.86 |
| To Aru Kagaku no Railgun | 6 | 3.33 | 3.10 | 25% | 3.10 | 0.77 | 3.98 | 0.99 |
| Elfen Lied | 6 | 3.50 | 3.07 | 25% | 3.07 | 0.77 | 4.18 | 1.04 |
| Sky Girls (OVA) | 7 | 2.50 | 2.25 | 34% | 2.25 | 0.77 | 2.43 | 0.83 |
| Ikki Tousen | 7 | 2.55 | 2.10 | 34% | 2.10 | 0.71 | 3.14 | 1.07 |
| Afro Samurai: Resurrection | 7 | 2.33 | 2.10 | 34% | 2.10 | 0.71 | 2.54 | 0.87 |
| Full Metal Panic ~Fumoffu~ | 5 | 4.00 | 4.00 | 17% | 4.00 | 0.69 | 5.59 | 0.97 |
| Full Metal Panic! The Second Raid | 5 | 4.00 | 4.00 | 17% | 4.00 | 0.69 | 5.29 | 0.92 |
| Omamori Himari | 6 | 3.00 | 2.65 | 25% | 2.65 | 0.66 | 3.15 | 0.79 |
| Ichiban Ushiro no Daimaou | 6 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 3.30 | 0.82 |
| Ikkitousen: Dragon Destiny | 6 | 3.00 | 2.55 | 25% | 2.55 | 0.64 | 3.11 | 0.78 |
| School Days OVA | 6 | 2.75 | 2.53 | 25% | 2.53 | 0.63 | 3.18 | 0.79 |
| Hellsing Ultimate | 6 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Mitsudomoe | 6 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.43 | 0.61 |
| Sekirei ~Pure Engagement~ | 6 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.86 | 0.72 |
| Zero no Tsukaima: Princess no Rondo | 6 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.43 | 0.61 |
| Kite Liberator | 6 | 2.67 | 2.43 | 25% | 2.43 | 0.61 | 2.88 | 0.72 |
| Futakoi Alternative | 6 | 2.67 | 2.43 | 25% | 2.43 | 0.61 | 2.88 | 0.72 |
| Haiyore! Nyaruko-san W | 5 | 4.00 | 4.00 | 17% | 3.50 | 0.61 | 4.00 | 0.69 |
| Aki-Sora | 5 | 4.00 | 4.00 | 17% | 3.50 | 0.61 | 4.00 | 0.69 |
| Full Metal Panic! The Second Raid (OVA) | 5 | 4.00 | 4.00 | 17% | 3.50 | 0.61 | 4.86 | 0.84 |
| Shakugan no Shana-tan Returns | 5 | 4.00 | 4.00 | 17% | 3.50 | 0.61 | 4.00 | 0.69 |
| Gunsmith Cats | 5 | 3.71 | 3.42 | 17% | 3.42 | 0.59 | 4.77 | 0.83 |
| Kyou no Go no Ni (OVA) | 6 | 2.60 | 2.36 | 25% | 2.36 | 0.59 | 3.11 | 0.78 |
| Photon | 6 | 2.67 | 2.29 | 25% | 2.29 | 0.57 | 3.03 | 0.76 |
| Sekirei | 5 | 3.50 | 3.25 | 17% | 3.25 | 0.56 | 4.11 | 0.71 |
| Nurse Witch Komugi-chan Magikarte Z | 5 | 3.50 | 3.25 | 17% | 3.25 | 0.56 | 3.43 | 0.60 |
| Mahou Sensei Negima! Shiroki Tsubasa Ala Alba | 5 | 3.50 | 3.25 | 17% | 3.25 | 0.56 | 3.43 | 0.60 |
| Kamen no Maid Guy OVA | 8 | 1.50 | 1.25 | 44% | 1.25 | 0.56 | 1.43 | 0.64 |
| Onegai Twins OAV | 6 | 2.57 | 2.21 | 25% | 2.21 | 0.55 | 3.05 | 0.76 |
| Chobits | 5 | 3.56 | 3.16 | 17% | 3.16 | 0.55 | 4.82 | 0.84 |
| Uta Kata | 5 | 3.33 | 3.10 | 17% | 3.10 | 0.54 | 3.54 | 0.62 |
| Iriya no Sora, UFO no Natsu | 5 | 3.33 | 3.10 | 17% | 3.10 | 0.54 | 3.54 | 0.62 |
| Love Hina Again | 5 | 3.40 | 3.04 | 17% | 3.04 | 0.53 | 4.37 | 0.76 |
| Akane Maniax | 6 | 2.33 | 2.10 | 25% | 2.10 | 0.52 | 2.54 | 0.64 |
| Sumomomo Momomo ~ Chijou Saikyou no Yome | 5 | 3.20 | 3.00 | 17% | 3.00 | 0.52 | 3.80 | 0.66 |
| Hand Maid May Special | 5 | 3.40 | 3.00 | 17% | 3.00 | 0.52 | 3.60 | 0.62 |
| Otaku No Video | 5 | 3.33 | 3.00 | 17% | 3.00 | 0.52 | 4.03 | 0.70 |
| Samurai Champloo | 5 | 3.33 | 3.00 | 17% | 3.00 | 0.52 | 4.03 | 0.70 |
| Zero no Tsukaima: Princess no Rondo OVA | 7 | 2.00 | 2.00 | 34% | 1.50 | 0.51 | 2.00 | 0.68 |
| G-on Riders | 5 | 3.00 | 2.59 | 17% | 2.59 | 0.45 | 2.87 | 0.50 |
| Tenjou Tenge: Ultimate Fight | 5 | 3.00 | 2.59 | 17% | 2.59 | 0.45 | 2.87 | 0.50 |
| High School of the Dead | 5 | 3.00 | 2.55 | 17% | 2.55 | 0.44 | 3.11 | 0.54 |
| Golden Boy | 5 | 3.06 | 2.54 | 17% | 2.54 | 0.44 | 3.83 | 0.66 |
