Mahou Shoujo Pretty Sammy (OAV)
Rating Average: 2.8000Rating Stddev: 0.4
Review Count: 5
Existing Best Bet #: 3.4
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.8000 - 0.4 ) + ( 1.6094379124341 / 1.6094379124341 )
( 2.4 ) - 1
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.8000 - 0.2 ) - 0 ) * $similarity
( 2.6 - 0 ) * $similarity
2.6 * $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: 8 - Comedy, OVA, Mahou Shoujo, 1995, 1996, 1997, Parody, Spinoff
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 |
|---|---|---|---|---|---|---|---|---|
| Mahou Shoujo Pretty Sammy (TV) | 6 | 3.00 | 3.00 | 56% | 3.00 | 1.69 | 4.11 | 2.31 |
| Ranma ½ OVA | 4 | 4.00 | 4.00 | 25% | 4.00 | 1.00 | 5.11 | 1.28 |
| Nurse Witch Komugi-chan Magikarte | 5 | 3.00 | 3.00 | 39% | 2.50 | 0.98 | 3.43 | 1.34 |
| Tenchi Muyou! Bangaihen | 5 | 3.00 | 3.00 | 39% | 2.50 | 0.98 | 3.68 | 1.44 |
| Puni Puni Poemi | 5 | 2.83 | 2.38 | 39% | 2.38 | 0.93 | 3.48 | 1.36 |
| Shakugan no Shana-tan | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Haiyore! Nyaruko-san OVA | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Tetsuwan Birdy | 4 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.43 | 1.11 |
| Legend of the Galactic Heroes | 4 | 3.67 | 3.43 | 25% | 3.43 | 0.86 | 3.88 | 0.97 |
| Hagane no Renkinjutsushi: Chibi Party | 4 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 3.43 | 0.86 |
| Nurse Witch Komugi-chan Magikarte Z | 4 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 3.43 | 0.86 |
| Variable Geo | 4 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| El Hazard: The Wanderers | 4 | 2.62 | 2.38 | 25% | 2.38 | 0.60 | 3.43 | 0.86 |
| Idol Project | 5 | 2.00 | 2.00 | 39% | 1.50 | 0.59 | 2.43 | 0.95 |
| School Days: Magical Heart Kokoro-chan | 4 | 2.75 | 2.34 | 25% | 2.34 | 0.58 | 2.78 | 0.70 |
| Taiho Shichauzo in America | 4 | 2.50 | 2.25 | 25% | 2.25 | 0.56 | 2.43 | 0.61 |
| Nurse Witch Komugi-chan Magikarute Special | 4 | 2.50 | 2.25 | 25% | 2.25 | 0.56 | 2.43 | 0.61 |
| Kodomo no Omocha | 3 | 3.87 | 3.62 | 14% | 3.62 | 0.51 | 5.05 | 0.71 |
| Mahoujin GuruGuru | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Bishoujo Senshi Sailor Moon Sailor Stars | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.86 | 0.68 |
| Black Jack: Clinical Chart | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Ultra Maniac OAV | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Nightmare Campus | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Shakugan no Shana-tan Returns | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Twin Signal | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.86 | 0.68 |
| Akazukin Chacha | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Shinseiki GPX Cyber Formula SAGA | 3 | 4.00 | 4.00 | 14% | 3.50 | 0.49 | 4.00 | 0.56 |
| Gunsmith Cats | 3 | 3.71 | 3.42 | 14% | 3.42 | 0.48 | 4.77 | 0.67 |
| Saber Marionette J | 3 | 3.64 | 3.40 | 14% | 3.40 | 0.48 | 4.80 | 0.68 |
| Usagichan De Cue | 3 | 3.60 | 3.36 | 14% | 3.36 | 0.47 | 4.11 | 0.58 |
| Taiho Shichauzo! (TV) | 3 | 3.67 | 3.29 | 14% | 3.29 | 0.46 | 4.03 | 0.57 |
| Mahou Tsukai Tai! | 3 | 3.60 | 3.27 | 14% | 3.27 | 0.46 | 4.37 | 0.61 |
| Koko wa Greenwood | 3 | 3.50 | 3.25 | 14% | 3.25 | 0.46 | 3.86 | 0.54 |
| Genshiken OVA | 3 | 3.50 | 3.25 | 14% | 3.25 | 0.46 | 3.43 | 0.48 |
| Dai Mahou Touge | 3 | 3.50 | 3.25 | 14% | 3.25 | 0.46 | 3.43 | 0.48 |
| Slayers | 3 | 3.57 | 3.21 | 14% | 3.21 | 0.45 | 4.73 | 0.67 |
| Kido Senkan Nadesico | 3 | 3.60 | 3.20 | 14% | 3.20 | 0.45 | 4.23 | 0.59 |
| 3x3 Eyes | 3 | 3.50 | 3.16 | 14% | 3.16 | 0.45 | 4.26 | 0.60 |
| Magic Knight Rayearth | 3 | 3.40 | 3.16 | 14% | 3.16 | 0.44 | 4.34 | 0.61 |
| Dokokade Nakushita Aitsu No Aitsu | 3 | 3.33 | 3.10 | 14% | 3.10 | 0.44 | 4.23 | 0.59 |
| Tenchi Muyou! | 3 | 3.50 | 3.10 | 14% | 3.10 | 0.44 | 4.56 | 0.64 |
| Cool Devices | 4 | 2.40 | 1.72 | 25% | 1.72 | 0.43 | 2.04 | 0.51 |
| Honoo no Labyrinth | 3 | 3.25 | 3.03 | 14% | 3.03 | 0.43 | 3.68 | 0.52 |
| Hand Maid May Special | 3 | 3.40 | 3.00 | 14% | 3.00 | 0.42 | 3.60 | 0.51 |
| Otaku No Video | 3 | 3.33 | 3.00 | 14% | 3.00 | 0.42 | 4.03 | 0.57 |
| Shinpi no Sekai El Hazard | 3 | 3.44 | 3.00 | 14% | 3.00 | 0.42 | 4.34 | 0.61 |
| Bakuretsu Hunters OVA | 3 | 3.17 | 2.98 | 14% | 2.98 | 0.42 | 3.91 | 0.55 |
| Debutante Detective Corps | 4 | 2.00 | 1.65 | 25% | 1.65 | 0.41 | 2.15 | 0.54 |
| Kidou Senshi Gundam: Dai 08 MS Shotai | 3 | 3.25 | 2.92 | 14% | 2.92 | 0.41 | 3.88 | 0.55 |
| Aa! Megami-sama: Chichai tte Koto wa Benri da Ne | 3 | 3.33 | 2.91 | 14% | 2.91 | 0.41 | 4.03 | 0.57 |
