Clannad: After Story - Kyou Chapter
Rating Average: 2.3333Rating Stddev: 0.4714045207910316
Review Count: 3
Existing Best Bet #: 2.54450167369495
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.3333 - 0.4714045207910316 ) + ( 1.09861228866811 / 1.6094379124341 )
( 1.86189547920897 ) - 0.682606194485985
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.3333 - 0.235702260395516 ) - 0 ) * $similarity
( 2.09759773960448 - 0 ) * $similarity
2.09759773960448 * $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 - 2009, OVA, Modern, Anime-Manga Bundle, High School, Romance, Slice of Life, Reboot, 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 |
|---|---|---|---|---|---|---|---|---|
| Aki-Sora | 8 | 4.00 | 4.00 | 79% | 3.50 | 2.77 | 4.00 | 3.16 |
| Nazo no Kanojo X: Nazo no Natsu Matsuri | 7 | 3.33 | 3.10 | 60% | 3.10 | 1.87 | 3.54 | 2.14 |
| Kimi ga Nozomu Eien - Haruka Route | 6 | 3.75 | 3.53 | 44% | 3.53 | 1.57 | 4.18 | 1.86 |
| Da Capo If | 7 | 3.00 | 2.50 | 60% | 2.50 | 1.51 | 2.43 | 1.47 |
| Minami-ke: Betsubara | 6 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.43 | 1.52 |
| Toradora! | 5 | 3.70 | 3.47 | 30% | 3.47 | 1.07 | 4.67 | 1.44 |
| Kanon (2006) | 5 | 3.60 | 3.36 | 30% | 3.36 | 1.04 | 4.11 | 1.27 |
| Aoi Hana | 6 | 2.80 | 2.31 | 44% | 2.31 | 1.03 | 2.82 | 1.25 |
| School Days (TV) | 6 | 2.83 | 2.30 | 44% | 2.30 | 1.02 | 2.88 | 1.28 |
| Koi Kaze | 5 | 3.67 | 3.29 | 30% | 3.29 | 1.02 | 4.03 | 1.25 |
| Sasameki Koto | 6 | 2.50 | 2.25 | 44% | 2.25 | 1.00 | 2.86 | 1.27 |
| Ladies versus Butlers! | 6 | 2.50 | 2.25 | 44% | 2.25 | 1.00 | 2.86 | 1.27 |
| Nodame Cantabile OVA | 5 | 3.33 | 3.10 | 30% | 3.10 | 0.96 | 3.54 | 1.09 |
| Clannad: After Story | 5 | 3.33 | 3.10 | 30% | 3.10 | 0.96 | 3.98 | 1.23 |
| I's Pure | 5 | 3.33 | 3.10 | 30% | 3.10 | 0.96 | 3.54 | 1.09 |
| Denpateki na Kanojo | 6 | 2.25 | 2.03 | 44% | 2.03 | 0.90 | 2.68 | 1.19 |
| Clannad Mouhitosu no Sekai Tomoyo Hen | 6 | 2.20 | 2.00 | 44% | 2.00 | 0.89 | 2.80 | 1.24 |
| Kimi ga Nozomu Eien | 5 | 3.30 | 2.85 | 30% | 2.85 | 0.88 | 3.83 | 1.18 |
| Lamune | 5 | 3.00 | 2.68 | 30% | 2.68 | 0.83 | 3.37 | 1.04 |
| Kimikiss Pure Rouge | 5 | 2.75 | 2.53 | 30% | 2.53 | 0.78 | 3.18 | 0.98 |
| Aa! Megami-sama OVA 2011 | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Kyou no Go no Ni (2009) | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Saishuuheiki Kanojo - Another Love Song | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.43 | 1.06 |
| One: Kagayaku Kisetsu e | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Seto no Hanayome (OVA) | 5 | 3.00 | 2.50 | 30% | 2.50 | 0.77 | 2.43 | 0.75 |
| Eiga K-On | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Boys Be | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.86 | 1.19 |
| Kyou no Go no Ni (OVA) | 5 | 2.60 | 2.36 | 30% | 2.36 | 0.73 | 3.11 | 0.96 |
| Kanon: Kaza Hana | 5 | 2.60 | 2.36 | 30% | 2.36 | 0.73 | 3.11 | 0.96 |
| School Days (ONA) | 5 | 2.75 | 2.34 | 30% | 2.34 | 0.72 | 2.78 | 0.86 |
| Da Capo Second Season | 5 | 2.75 | 2.34 | 30% | 2.34 | 0.72 | 2.78 | 0.86 |
| BECK | 4 | 3.83 | 3.65 | 19% | 3.65 | 0.72 | 4.57 | 0.90 |
| B Gata H Kei | 5 | 2.80 | 2.31 | 30% | 2.31 | 0.71 | 2.82 | 0.87 |
| Cross Game | 4 | 3.80 | 3.60 | 19% | 3.60 | 0.71 | 4.40 | 0.87 |
| Ai Yori Aoshi ~Enishi~ Miyuki | 4 | 3.75 | 3.53 | 19% | 3.53 | 0.70 | 4.18 | 0.83 |
| Hayate no Gotoku !! | 4 | 3.75 | 3.53 | 19% | 3.53 | 0.70 | 4.18 | 0.83 |
| Nazo no Kanojo X | 4 | 3.75 | 3.53 | 19% | 3.53 | 0.70 | 4.18 | 0.83 |
| Clannad (Movie) | 5 | 2.50 | 2.25 | 30% | 2.25 | 0.69 | 2.86 | 0.88 |
| Just Because | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Full Metal Panic! The Second Raid (OVA) | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.86 | 0.96 |
| Horimiya | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Aishiteru Ze Baby | 4 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 4.31 | 0.85 |
| Nanaka 6/17 | 4 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 3.88 | 0.77 |
| Aa! Megami-sama - Sorezore no Tsubasa OVA | 4 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 3.88 | 0.77 |
| Kanon | 4 | 3.70 | 3.38 | 19% | 3.38 | 0.67 | 4.49 | 0.89 |
| Aki Sora: Yume no Naka | 6 | 2.00 | 2.00 | 44% | 1.50 | 0.67 | 2.00 | 0.89 |
| Azumanga Daioh (TV) | 4 | 3.67 | 3.37 | 19% | 3.37 | 0.67 | 4.75 | 0.94 |
| Amagami SS | 5 | 2.40 | 2.16 | 30% | 2.16 | 0.67 | 2.91 | 0.90 |
| Suzumiya Haruhi no Yuutsu 2009 | 5 | 2.40 | 2.16 | 30% | 2.16 | 0.67 | 2.91 | 0.90 |
| Usagichan De Cue | 4 | 3.60 | 3.36 | 19% | 3.36 | 0.66 | 4.11 | 0.81 |
