Best bets for:

Dragon Ball

Rating Average: 2.7778
Rating Stddev: 0.7856742013183862
Review Count: 9
Existing Best Bet #: 3.35733818765358
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.7778 - 0.7856742013183862 ) + ( 2.19722457733622 / 1.6094379124341 )
( 1.99212579868161 ) - 1.36521238897197
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.7778 - 0.392837100659193 ) - 0 ) * $similarity
( 2.38496289934081 - 0 ) * $similarity
2.38496289934081 * $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 - Action Comedy, Classic, Silly-funny, 1986, 1989, 1988, 1987, TV, Fantasy, Sci-Fi, Fighting, Martial Arts

For reference, Devil Doll's similarity calc is this:
( $matching_keys * ( $matching_keys / $total_keys ) * $total_keys ) / ( $total_keys * $total_keys )
Pool of potential series:
TitleKey MatchRatingRating - stddevDevil Doll's Similarity CalcNew bbetNew bbet * SimilarityOld bbetOld bbet * Similarity
Needless 6 3.00 2.50 25% 2.50 0.62 2.86 0.72
Haiyore! Nyaruko-san W 5 4.00 4.00 17% 3.50 0.61 4.00 0.69
Mahoujin GuruGuru 5 4.00 4.00 17% 3.50 0.61 4.00 0.69
Naruto Shippuuden (TV) 5 4.00 4.00 17% 3.50 0.61 4.00 0.69
Abenobashi Mahou Shotengai 5 3.67 3.43 17% 3.43 0.60 4.31 0.75
Ranma ½ 5 3.44 3.03 17% 3.03 0.53 4.41 0.77
Maison Ikkoku 5 3.22 2.91 17% 2.91 0.50 3.96 0.69
G-on Riders 5 3.00 2.59 17% 2.59 0.45 2.87 0.50
Tentai Senshi Sunred 5 3.00 2.50 17% 2.50 0.43 2.43 0.42
Persona 4: The Animation 5 3.00 2.50 17% 2.50 0.43 2.43 0.42
Dirty Pair OAV 5 2.67 2.43 17% 2.43 0.42 2.88 0.50
School Rumble 4 3.89 3.73 11% 3.73 0.41 4.94 0.55
Tokyo Majin Gakuen Kenpuchou: Tou 5 2.75 2.34 17% 2.34 0.41 2.78 0.48
Mahou Shoujo Lyrical Nanoha A's 4 3.75 3.53 11% 3.53 0.39 4.18 0.46
Mahou Shoujo Lyrical Nanoha 4 3.75 3.53 11% 3.53 0.39 4.18 0.46
Urusei Yatsura OVA Series 5 2.50 2.25 17% 2.25 0.39 2.43 0.42
Saiyuuki Reload Gunlock 4 4.00 4.00 11% 3.50 0.39 4.00 0.44
Eden's Bowy 4 4.00 4.00 11% 3.50 0.39 4.43 0.49
Akiba Maid Sensou 4 4.00 4.00 11% 3.50 0.39 4.00 0.44
Top wo Nerae! 4 3.67 3.43 11% 3.43 0.38 3.88 0.43
Nagasarete Airantou 4 3.50 3.25 11% 3.25 0.36 4.11 0.46
Kiba 4 3.50 3.25 11% 3.25 0.36 3.43 0.38
Naruto 4 3.62 3.20 11% 3.20 0.36 4.87 0.54
Fight Ippatsu! Juuden-chan!! 5 2.25 2.03 17% 2.03 0.35 2.68 0.46
Kimagure Orange Road (TV) 4 3.50 3.15 11% 3.15 0.35 4.08 0.45
Tenchi Muyou! Ryououki 4 3.45 2.96 11% 2.96 0.33 4.39 0.49
Yu Yu Hakusho 4 3.29 2.92 11% 2.92 0.32 4.31 0.48
Bleach 4 3.43 2.90 11% 2.90 0.32 3.59 0.40
Megazone 23 4 3.17 2.82 11% 2.82 0.31 3.59 0.40
.hack//Tasogare no Udewa Densetsu 4 3.00 2.59 11% 2.59 0.29 3.30 0.37
Mamoru-kun ni Megami no Shukufuku wo! 4 3.00 2.59 11% 2.59 0.29 2.87 0.32
Erementar Gerad (TV) 4 3.00 2.59 11% 2.59 0.29 2.87 0.32
Sunabouzu 4 3.00 2.55 11% 2.55 0.28 3.11 0.35
Boukyaku no Senritsu 4 3.00 2.55 11% 2.55 0.28 3.11 0.35
Cheating Craft 4 3.00 3.00 11% 2.50 0.28 3.00 0.33
Ore, Twintail ni Narimasu 4 3.00 3.00 11% 2.50 0.28 3.00 0.33
Dokkoida 4 3.00 3.00 11% 2.50 0.28 3.00 0.33
K.O. Beast 4 3.00 3.00 11% 2.50 0.28 3.00 0.33
Kaijuu 8-gou S1 4 3.00 3.00 11% 2.50 0.28 3.00 0.33
Nobunagun 4 3.00 3.00 11% 2.50 0.28 3.00 0.33
Samurai Troopers 4 3.00 3.00 11% 2.50 0.28 3.00 0.33
Selector Spread WIXOSS 4 3.00 3.00 11% 2.50 0.28 3.00 0.33
Kannazuki no Miko 4 3.00 2.50 11% 2.50 0.28 2.43 0.27
JoJo no Kimyou na Bouken: Stardust Crusaders 4 3.00 3.00 11% 2.50 0.28 3.43 0.38
Dragon Ball: Shen long no densetsu 5 2.00 2.00 17% 1.50 0.26 2.00 0.35
Ronin Warriors 5 2.00 2.00 17% 1.50 0.26 2.00 0.35
Mahou Shoujo Lyrical Nanoha StrikerS 4 2.75 2.34 11% 2.34 0.26 2.78 0.31
Selector Infected WIXOSS 4 2.50 2.25 11% 2.25 0.25 2.43 0.27
Log Horizon 4 2.50 2.25 11% 2.25 0.25 2.43 0.27
Akudama Drive 4 2.50 2.25 11% 2.25 0.25 2.43 0.27

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