Hen Zemi (OVA)
Rating Average: 2.0000Rating Stddev: 0
Review Count: 1
Existing Best Bet #: 2
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.0000 - 0 ) + ( 0 / 1.6094379124341 )
( 2 ) - 0
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.0000 - 0 ) - 0.5 ) * $similarity
( 2 - 0.5 ) * $similarity
1.5 * $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: 9 - 2010, OVA, Modern, Anime-Manga Bundle, College, Comedy, Coming of Age, Ecchi, 2011
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 |
|---|---|---|---|---|---|---|---|---|
| Aki-Sora | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Oretachi ni Tsubasa wa Nai | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Bentou no Gokui | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| B Gata H Kei | 5 | 2.80 | 2.31 | 30% | 2.31 | 0.71 | 2.82 | 0.87 |
| Ladies versus Butlers! | 5 | 2.50 | 2.25 | 30% | 2.25 | 0.69 | 2.86 | 0.88 |
| Discipline: Record of a Crusade | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Mahou Sensei Negima! Shiroki Tsubasa Ala Alba | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Hana-Saku Iroha | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Araburu Kisetsu no Otome-domo yo | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Genshiken OVA | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Itazura na Kiss | 4 | 3.50 | 3.12 | 19% | 3.12 | 0.62 | 3.85 | 0.76 |
| Nazo no Kanojo X: Nazo no Natsu Matsuri | 4 | 3.33 | 3.10 | 19% | 3.10 | 0.61 | 3.54 | 0.70 |
| Nodame Cantabile OVA | 4 | 3.33 | 3.10 | 19% | 3.10 | 0.61 | 3.54 | 0.70 |
| Love Hina Again | 4 | 3.40 | 3.04 | 19% | 3.04 | 0.60 | 4.37 | 0.86 |
| Honoo no Labyrinth | 4 | 3.25 | 3.03 | 19% | 3.03 | 0.60 | 3.68 | 0.73 |
| Kiss×sis OVA | 6 | 1.50 | 1.25 | 44% | 1.25 | 0.56 | 1.86 | 0.83 |
| Kamen no Maid Guy OVA | 6 | 1.50 | 1.25 | 44% | 1.25 | 0.56 | 1.43 | 0.64 |
| Golden Boy | 4 | 3.06 | 2.54 | 19% | 2.54 | 0.50 | 3.83 | 0.76 |
| Ben-To | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| H.O.T.D: Drifters of the Dead | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Kyou no Go no Ni (2009) | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Black Lagoon Roberta's Blood Trail | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Sekirei ~Pure Engagement~ | 4 | 3.00 | 2.50 | 19% | 2.50 | 0.49 | 2.86 | 0.57 |
| Kuroshitsuji II OVAs | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Mai-HiME Omake Special | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.43 | 0.68 |
| Mitsudomoe | 4 | 3.00 | 2.50 | 19% | 2.50 | 0.49 | 2.43 | 0.48 |
| Aa! Megami-sama OVA 2011 | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Hellsing Ultimate | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Minami-ke: Betsubara | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.43 | 0.68 |
| Call Me Tonight | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.43 | 0.68 |
| Angel Beats! | 4 | 2.91 | 2.46 | 19% | 2.46 | 0.49 | 3.50 | 0.69 |
| Kyou no Go no Ni (OVA) | 4 | 2.60 | 2.36 | 19% | 2.36 | 0.47 | 3.11 | 0.61 |
| Seitokai Yakuindomo: Kaette Kita Seitokai Yakuindomo | 5 | 2.00 | 2.00 | 30% | 1.50 | 0.46 | 2.00 | 0.62 |
| Aki Sora: Yume no Naka | 5 | 2.00 | 2.00 | 30% | 1.50 | 0.46 | 2.00 | 0.62 |
| Sakura Tsuushin | 5 | 2.00 | 1.50 | 30% | 1.50 | 0.46 | 2.11 | 0.65 |
| Chu-Bra!! | 5 | 2.00 | 2.00 | 30% | 1.50 | 0.46 | 2.68 | 0.83 |
| Kamen no Maid Guy | 4 | 2.75 | 2.34 | 19% | 2.34 | 0.46 | 2.78 | 0.55 |
| School Days: Magical Heart Kokoro-chan | 4 | 2.75 | 2.34 | 19% | 2.34 | 0.46 | 2.78 | 0.55 |
| Sora no Woto | 4 | 2.50 | 2.25 | 19% | 2.25 | 0.44 | 3.11 | 0.61 |
| Asu no Yoichi! | 4 | 2.50 | 2.25 | 19% | 2.25 | 0.44 | 3.11 | 0.61 |
| Ore no Imouto ga Konna ni Kawaii Wake ga Nai | 4 | 2.50 | 2.25 | 19% | 2.25 | 0.44 | 2.86 | 0.57 |
| K-ON! OVA | 4 | 2.50 | 2.25 | 19% | 2.25 | 0.44 | 2.43 | 0.48 |
| Kodomo no Jikan (OVA) | 4 | 2.50 | 2.25 | 19% | 2.25 | 0.44 | 2.43 | 0.48 |
| Koe de Oshigoto | 4 | 2.50 | 2.25 | 19% | 2.25 | 0.44 | 2.43 | 0.48 |
| Onegai Twins OAV | 4 | 2.57 | 2.21 | 19% | 2.21 | 0.44 | 3.05 | 0.60 |
| Amagami SS | 4 | 2.40 | 2.16 | 19% | 2.16 | 0.43 | 2.91 | 0.57 |
| Baby Love OVA | 4 | 2.33 | 2.10 | 19% | 2.10 | 0.41 | 2.54 | 0.50 |
| Nodame Cantabile | 3 | 3.83 | 3.65 | 11% | 3.65 | 0.41 | 4.57 | 0.51 |
| Denpateki na Kanojo | 4 | 2.25 | 2.03 | 19% | 2.03 | 0.40 | 2.68 | 0.53 |
| Usagi Drop | 3 | 3.80 | 3.60 | 11% | 3.60 | 0.40 | 4.40 | 0.49 |
