Best bets for:

Akagami no Shirayukihime (TV 2)

Rating Average: 3.0000
Rating Stddev: 0
Review Count: 1
Existing Best Bet #: 3
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.0000 - 0 ) + ( 0 / 1.6094379124341 )
( 3 ) - 0
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.0000 - 0 ) - 0.5 ) * $similarity
( 3 - 0.5 ) * $similarity
2.5 * $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: 7 - 2016, Drama, Romance, TV, Fantasy, Shoujo, Sequel

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
Shoujo Kakumei Utena 5 3.83 3.65 51% 3.65 1.86 5.26 2.68
Fruits Basket 2nd Season 5 4.00 4.00 51% 3.50 1.79 4.00 2.04
Fruits Basket: The Final 5 4.00 4.00 51% 3.50 1.79 4.00 2.04
Mahō Tsukai no Yome Season 2 5 4.00 4.00 51% 3.50 1.79 4.00 2.04
Mahō Tsukai no Yome Season 2, Part 2 5 4.00 4.00 51% 3.50 1.79 4.00 2.04
Tenkuu no Escaflowne 5 3.56 3.23 51% 3.23 1.65 5.06 2.58
Full Metal Panic! The Second Raid 4 4.00 4.00 32% 4.00 1.31 5.29 1.73
Zero no Tsukaima: Futatsuki no Kishi 5 2.86 2.54 51% 2.54 1.29 3.43 1.75
Orange 5 3.00 3.00 51% 2.50 1.28 3.00 1.53
Akatsuki no Yona 5 3.00 3.00 51% 2.50 1.28 3.00 1.53
Kami nomi zo Shiru Sekai: Megami-Hen 5 3.00 3.00 51% 2.50 1.28 3.00 1.53
Zero no Tsukaima: Princess no Rondo 5 3.00 2.50 51% 2.50 1.28 2.43 1.24
Da Capo II 5 3.00 2.50 51% 2.50 1.28 2.43 1.24
Sekirei ~Pure Engagement~ 5 3.00 2.50 51% 2.50 1.28 2.86 1.46
Kaleido Star 5 3.00 3.00 51% 2.50 1.28 3.00 1.53
Fruits Basket 4 3.85 3.61 32% 3.61 1.18 5.23 1.71
Kamichu! 4 3.80 3.60 32% 3.60 1.18 4.40 1.44
Ayashi no Ceres 5 2.73 2.30 51% 2.30 1.17 3.35 1.71
Princess Tutu 4 3.75 3.53 32% 3.53 1.15 4.18 1.36
Mahou Shoujo Lyrical Nanoha A's 4 3.75 3.53 32% 3.53 1.15 4.18 1.36
Natsu no Arashi! Akinai-chuu 5 2.50 2.25 51% 2.25 1.15 2.43 1.24
Re: Zero Kara Hajimeru Isekai Seikatsu 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Saiunkoku Monogatari 4 4.00 4.00 32% 3.50 1.14 4.68 1.53
Hakkenden: Tōhō Hakken Ibun (TV 2) 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Saiunkoku Monogatari 2nd Series 4 4.00 4.00 32% 3.50 1.14 4.43 1.45
Maria-sama ga Miteru 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Suzumiya Haruhi no Shoushitsu 4 4.00 4.00 32% 3.50 1.14 4.68 1.53
Mushishi: Zoku-Shō 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Re: Zero Kara Hajimeru Isekai Seikatsu (TV 2) 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Jigoku Shoujo Futakomori 4 4.00 4.00 32% 3.50 1.14 4.68 1.53
Noragami Aragoto 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Shounen Onmyouji 4 4.00 4.00 32% 3.50 1.14 4.43 1.45
Tenshi Ni Narumon 4 4.00 4.00 32% 3.50 1.14 4.86 1.59
Naruto Shippuuden (TV) 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Monogatari Series: Second Season 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Hachimitsu to Kuroba II 4 4.00 4.00 32% 3.50 1.14 4.86 1.59
Da Capo II 2nd Season 4 4.00 4.00 32% 3.50 1.14 4.43 1.45
Made in Abyss: Retsujitsu no Ougonkyou 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Kidō Senshi Gundam: Tekketsu no Orphans (TV 2) 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Eikoku Koi Monogatari Emma Daini Maku Second Act 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Fruits Basket (2019) 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Nejimaki Seirei Senki: Tenkyou no Alderamin 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Kujira no Kora wa Sajō ni Utau 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
Ushio to Tora TV 2 4 4.00 4.00 32% 3.50 1.14 4.00 1.31
X (TV) 4 3.75 3.47 32% 3.47 1.13 4.91 1.60
Abenobashi Mahou Shotengai 4 3.67 3.43 32% 3.43 1.12 4.31 1.41
Seikai no Senki II 4 3.67 3.43 32% 3.43 1.12 3.88 1.27
Legend of Basara 4 3.67 3.43 32% 3.43 1.12 3.88 1.27
Aishiteru Ze Baby 4 3.67 3.43 32% 3.43 1.12 4.31 1.41
Shuffle! 4 3.67 3.43 32% 3.43 1.12 4.31 1.41

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