Aa! Megami-sama! (2005) OVA
Rating Average: 3.3333Rating Stddev: 0.4714045207910317
Review Count: 3
Existing Best Bet #: 3.54450167369495
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.3333 - 0.4714045207910317 ) + ( 1.09861228866811 / 1.6094379124341 )
( 2.86189547920897 ) - 0.682606194485985
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.3333 - 0.235702260395516 ) - 0 ) * $similarity
( 3.09759773960448 - 0 ) * $similarity
3.09759773960448 * $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 - 2005, OVA, Modern, College, Magic, Romantic Comedy, Sequel, Seinen, Deities
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 |
|---|---|---|---|---|---|---|---|---|
| Aa! Megami-sama - Sorezore no Tsubasa OVA | 7 | 3.67 | 3.43 | 60% | 3.43 | 2.08 | 3.88 | 2.35 |
| Aa! Megami-sama! OVA | 6 | 3.35 | 2.96 | 44% | 2.96 | 1.31 | 4.59 | 2.04 |
| Tenjou Tenge: Ultimate Fight | 6 | 3.00 | 2.59 | 44% | 2.59 | 1.15 | 2.87 | 1.27 |
| Ai Yori Aoshi - Dream Story | 6 | 3.00 | 2.50 | 44% | 2.50 | 1.11 | 2.86 | 1.27 |
| Ai Yori Aoshi ~Enishi~ Miyuki | 5 | 3.75 | 3.53 | 30% | 3.53 | 1.09 | 4.18 | 1.29 |
| Haiyore! Nyaruko-san OVA | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Da Capo Second Season | 6 | 2.75 | 2.34 | 44% | 2.34 | 1.04 | 2.78 | 1.24 |
| Rozen Maiden ~Träumend~ | 5 | 3.33 | 3.10 | 30% | 3.10 | 0.96 | 3.54 | 1.09 |
| Aa! Megami-sama! TV | 6 | 2.57 | 2.12 | 44% | 2.12 | 0.94 | 2.88 | 1.28 |
| Ai Yori Aoshi ~Enishi~ | 5 | 3.14 | 2.82 | 30% | 2.82 | 0.87 | 3.71 | 1.15 |
| Full Metal Panic! The Second Raid | 4 | 4.00 | 4.00 | 19% | 4.00 | 0.79 | 5.29 | 1.05 |
| Sekirei ~Pure Engagement~ | 5 | 3.00 | 2.50 | 30% | 2.50 | 0.77 | 2.86 | 0.88 |
| Kamichu! | 4 | 3.80 | 3.60 | 19% | 3.60 | 0.71 | 4.40 | 0.87 |
| Shin Kimagure Orange Road: So Shite, Ano Natsu No Hajimari | 4 | 3.80 | 3.60 | 19% | 3.60 | 0.71 | 4.40 | 0.87 |
| Full Metal Panic ~Fumoffu~ Special | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Black Jack Final | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Aki-Sora | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Tenchi Muyou! Ryououki OAV 3 plus 1 | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.43 | 0.88 |
| Full Metal Panic! The Second Raid (OVA) | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.86 | 0.96 |
| Onegai Twins OAV | 5 | 2.57 | 2.21 | 30% | 2.21 | 0.68 | 3.05 | 0.94 |
| Air TV | 4 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 4.31 | 0.85 |
| Gekijouban Aa! Megami-sama! | 4 | 3.70 | 3.34 | 19% | 3.34 | 0.66 | 4.85 | 0.96 |
| Ai Yori Aoshi | 4 | 3.65 | 3.32 | 19% | 3.32 | 0.66 | 4.86 | 0.96 |
| Genshiken OVA | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Love Hina Again | 4 | 3.40 | 3.04 | 19% | 3.04 | 0.60 | 4.37 | 0.86 |
| Love Hina - Motoko's Choice | 4 | 3.33 | 2.96 | 19% | 2.96 | 0.58 | 3.70 | 0.73 |
| Onegai Teacher (OAV) | 5 | 2.50 | 1.87 | 30% | 1.87 | 0.58 | 2.35 | 0.73 |
| Lamune | 4 | 3.00 | 2.68 | 19% | 2.68 | 0.53 | 3.37 | 0.67 |
| Girls Bravo - Second Season | 4 | 3.00 | 2.62 | 19% | 2.62 | 0.52 | 3.45 | 0.68 |
| Aa! Megami-sama - Sorezore no Tsubasa | 4 | 3.00 | 2.59 | 19% | 2.59 | 0.51 | 2.87 | 0.57 |
| Zero no Tsukaima: Futatsuki no Kishi | 4 | 2.86 | 2.54 | 19% | 2.54 | 0.50 | 3.43 | 0.68 |
| School Days OVA | 4 | 2.75 | 2.53 | 19% | 2.53 | 0.50 | 3.18 | 0.63 |
| Itsudatte My Santa! | 4 | 2.75 | 2.53 | 19% | 2.53 | 0.50 | 3.18 | 0.63 |
| Wind: A Breath of Heart - Omake OVA | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Kami nomi zo Shiru Sekai: Megami-Hen | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Zero no Tsukaima: Princess no Rondo | 4 | 3.00 | 2.50 | 19% | 2.50 | 0.49 | 2.43 | 0.48 |
| Night Wizard | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.43 | 0.68 |
| Aa! Megami-sama OVA 2011 | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Golden Time | 4 | 3.00 | 3.00 | 19% | 2.50 | 0.49 | 3.00 | 0.59 |
| Seto no Hanayome (OVA) | 4 | 3.00 | 2.50 | 19% | 2.50 | 0.49 | 2.43 | 0.48 |
| Kanon: Kaza Hana | 4 | 2.60 | 2.36 | 19% | 2.36 | 0.47 | 3.11 | 0.61 |
| Guardian Hearts Power Up! | 5 | 2.00 | 2.00 | 30% | 1.50 | 0.46 | 2.43 | 0.75 |
| Mirai Nikki Redial | 4 | 2.50 | 2.25 | 19% | 2.25 | 0.44 | 2.43 | 0.48 |
| Full Metal Panic ~Fumoffu~ | 3 | 4.00 | 4.00 | 11% | 4.00 | 0.44 | 5.59 | 0.62 |
| Love Hina Christmas Special | 3 | 4.00 | 4.00 | 11% | 4.00 | 0.44 | 5.43 | 0.60 |
| Love Hina Spring Special | 4 | 2.56 | 2.14 | 19% | 2.14 | 0.42 | 3.09 | 0.61 |
| School Rumble | 3 | 3.89 | 3.73 | 11% | 3.73 | 0.41 | 4.94 | 0.55 |
| Gekijouban Air | 4 | 2.33 | 2.10 | 19% | 2.10 | 0.41 | 2.98 | 0.59 |
| Mai-HiME | 3 | 3.88 | 3.71 | 11% | 3.71 | 0.41 | 4.84 | 0.54 |
| Green Green OVA | 4 | 2.25 | 2.03 | 19% | 2.03 | 0.40 | 2.68 | 0.53 |
