Vandread The Second Stage
Rating Average: 3.8000Rating Stddev: 0.39999999999999997
Review Count: 5
Existing Best Bet #: 4.4
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.8000 - 0.39999999999999997 ) + ( 1.6094379124341 / 1.6094379124341 )
( 3.4 ) - 1
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.8000 - 0.2 ) - 0 ) * $similarity
( 3.6 - 0 ) * $similarity
3.6 * $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: 11 - Action, Adventure, Comedy, Drama, Fan Service, Mecha, Sci-Fi, Sequel, TV, 2001, Harem
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 |
|---|---|---|---|---|---|---|---|---|
| Vandread | 8 | 3.89 | 3.73 | 52% | 3.73 | 1.97 | 4.94 | 2.61 |
| Eureka Seven | 7 | 4.00 | 4.00 | 40% | 4.00 | 1.62 | 5.00 | 2.02 |
| Digimon Tamers | 7 | 3.75 | 3.53 | 40% | 3.53 | 1.43 | 4.18 | 1.69 |
| Seikai no Senki II | 7 | 3.67 | 3.43 | 40% | 3.43 | 1.39 | 3.88 | 1.57 |
| Saber Marionette J to X | 7 | 3.67 | 3.43 | 40% | 3.43 | 1.39 | 3.88 | 1.57 |
| G-on Riders | 8 | 3.00 | 2.59 | 52% | 2.59 | 1.37 | 2.87 | 1.52 |
| Zero no Tsukaima: Futatsuki no Kishi | 8 | 2.86 | 2.54 | 52% | 2.54 | 1.34 | 3.43 | 1.81 |
| Brigadoon | 8 | 2.50 | 2.25 | 52% | 2.25 | 1.19 | 2.43 | 1.29 |
| Full Metal Panic ~Fumoffu~ | 6 | 4.00 | 4.00 | 29% | 4.00 | 1.19 | 5.59 | 1.66 |
| Full Metal Panic! The Second Raid | 6 | 4.00 | 4.00 | 29% | 4.00 | 1.19 | 5.29 | 1.57 |
| Isekai no Seikishi Monogatari | 7 | 3.33 | 2.86 | 40% | 2.86 | 1.16 | 3.07 | 1.24 |
| s-CRY-ed | 7 | 3.22 | 2.83 | 40% | 2.83 | 1.15 | 3.80 | 1.54 |
| Zero no Tsukaima | 7 | 3.00 | 2.78 | 40% | 2.78 | 1.12 | 3.98 | 1.61 |
| Kiddy Grade | 7 | 3.12 | 2.66 | 40% | 2.66 | 1.08 | 3.49 | 1.41 |
| Cowboy Bebop | 6 | 3.81 | 3.55 | 29% | 3.55 | 1.06 | 5.74 | 1.71 |
| Mahou Shoujo Lyrical Nanoha A's | 6 | 3.75 | 3.53 | 29% | 3.53 | 1.05 | 4.18 | 1.24 |
| Ichiban Ushiro no Daimaou | 7 | 3.00 | 2.59 | 40% | 2.59 | 1.05 | 3.30 | 1.34 |
| KURAU Phantom Memory | 6 | 4.00 | 4.00 | 29% | 3.50 | 1.04 | 4.00 | 1.19 |
| FLCL Progressive | 6 | 4.00 | 4.00 | 29% | 3.50 | 1.04 | 4.00 | 1.19 |
| Kidō Senshi Gundam: Tekketsu no Orphans (TV 2) | 6 | 4.00 | 4.00 | 29% | 3.50 | 1.04 | 4.00 | 1.19 |
| Code Geass Hangyaku no Lelouch Season 2 | 7 | 3.00 | 2.55 | 40% | 2.55 | 1.03 | 3.11 | 1.26 |
| Saber Marionette J | 6 | 3.64 | 3.40 | 29% | 3.40 | 1.01 | 4.80 | 1.43 |
| Sekirei ~Pure Engagement~ | 7 | 3.00 | 2.50 | 40% | 2.50 | 1.01 | 2.86 | 1.16 |
| Zero no Tsukaima: Princess no Rondo | 7 | 3.00 | 2.50 | 40% | 2.50 | 1.01 | 2.43 | 0.98 |
| Mushoku Tensei II - Isekai Ittara Honki Dasu (TV 4) | 7 | 3.00 | 3.00 | 40% | 2.50 | 1.01 | 3.00 | 1.21 |
| Top wo Nerae! 2 | 7 | 3.00 | 3.00 | 40% | 2.50 | 1.01 | 3.00 | 1.21 |
| Kakumeiki Valvrave 2 | 7 | 3.00 | 3.00 | 40% | 2.50 | 1.01 | 3.00 | 1.21 |
| Needless | 7 | 3.00 | 2.50 | 40% | 2.50 | 1.01 | 2.86 | 1.16 |
| Usagichan De Cue | 6 | 3.60 | 3.36 | 29% | 3.36 | 1.00 | 4.11 | 1.22 |
| Mahoromatic: Motto Utsukushii Mono | 6 | 3.60 | 3.36 | 29% | 3.36 | 1.00 | 4.11 | 1.22 |
| Seikai no Monshou | 6 | 3.58 | 3.26 | 29% | 3.26 | 0.97 | 4.49 | 1.34 |
| Nagasarete Airantou | 6 | 3.50 | 3.25 | 29% | 3.25 | 0.97 | 4.11 | 1.22 |
| Koukaku Kidoutai S.A.C. 2nd GIG | 6 | 3.50 | 3.25 | 29% | 3.25 | 0.97 | 3.86 | 1.15 |
| Sekirei | 6 | 3.50 | 3.25 | 29% | 3.25 | 0.97 | 4.11 | 1.22 |
| AIR GEAR | 7 | 2.75 | 2.34 | 40% | 2.34 | 0.95 | 2.78 | 1.13 |
| Gun Sword | 6 | 3.33 | 3.10 | 29% | 3.10 | 0.92 | 3.54 | 1.05 |
| Chikyuu Bouei Kigyou Dai-Guard | 6 | 3.33 | 3.10 | 29% | 3.10 | 0.92 | 3.54 | 1.05 |
| Neo Ranga | 7 | 2.50 | 2.25 | 40% | 2.25 | 0.91 | 2.43 | 0.98 |
| To LOVE-Ru | 6 | 3.40 | 3.00 | 29% | 3.00 | 0.89 | 3.60 | 1.07 |
| Sumomomo Momomo ~ Chijou Saikyou no Yome | 6 | 3.20 | 3.00 | 29% | 3.00 | 0.89 | 3.80 | 1.13 |
| Samurai Champloo | 6 | 3.33 | 3.00 | 29% | 3.00 | 0.89 | 4.03 | 1.20 |
| Code Geass Hangyaku no Lelouch | 6 | 3.29 | 2.94 | 29% | 2.94 | 0.87 | 3.79 | 1.13 |
| Afro Samurai: Resurrection | 7 | 2.33 | 2.10 | 40% | 2.10 | 0.85 | 2.54 | 1.03 |
| Read or Die - TV | 5 | 4.00 | 4.00 | 20% | 4.00 | 0.83 | 5.11 | 1.06 |
| Koukaku Kidoutai STAND ALONE COMPLEX | 5 | 4.00 | 4.00 | 20% | 4.00 | 0.83 | 5.43 | 1.12 |
| Love Hina Christmas Special | 5 | 4.00 | 4.00 | 20% | 4.00 | 0.83 | 5.43 | 1.12 |
| Kenran Butoh Sai: The Mars Daybreak | 6 | 3.00 | 2.65 | 29% | 2.65 | 0.79 | 3.15 | 0.94 |
| Omamori Himari | 6 | 3.00 | 2.65 | 29% | 2.65 | 0.79 | 3.15 | 0.94 |
| Bakuretsu Tenshi | 6 | 3.00 | 2.65 | 29% | 2.65 | 0.79 | 3.15 | 0.94 |
| Erementar Gerad (TV) | 6 | 3.00 | 2.59 | 29% | 2.59 | 0.77 | 2.87 | 0.85 |
