AniDB Analysis – Anime Series 2010 Part 1Posted: March 4, 2011
In looking around for other information to analyze anime series and came across AniDB website (thanks to Taka in the previous comment section), which has other unique statistics I have not found anywhere. This includes:
- Anime ratings segmented by males and females
- Anime ratings segmented by age groups
- Individual anime episode rating
- Anime ratings segmented by temporary (ratings posted by people who have not finished a series) and permanent (ratings posted by people who have seen the series) categories
This piqued my interest and after a few (10) hours collecting the data, here are some interesting results based on anime series in 2010 (I am working towards getting data from other year but that is still so far work in progress)
COMPARISON ANIDB vs. ANN
First off, let us look at the break down and comparison of AniDB and ANN database. I have always held Anime News Network as the benchmark of anime ratings I have done so it is interesting for me to see how AniDB stacks up to ANN. I am limiting the scope to just anime series in 2010
|Number of titles||69||80|
|Median votes per title||483||202|
|Mean votes per title||603||277|
|Max votes (series)||Angel Beats!||Angel Beats!|
|Min votes (Series)||Heartcatch Precure!||Tono to Issho|
- ANN has lower number of votes than AniDB. However, median and mean of numbers of seen are 422 and 539 respectively, which is very close to AniDB number
- Rating statistics is very similar. AniDB has marginally higher standard deviation which means that scores are slightly more extreme
- All in all, the voting pattern and composition of these two sources seem very similar. Any slight difference can potentially be chalked down to small sizes. It is good to see no particular skew or
MALE & FEMALE
- for the 69 series, the median for male-to-female permanent votes ratio is 92:8. This can be easily interpreted that anime is a male-dominated hobby for the most part
- Segmenting this ratio down further into major demographic, it goes as planned that Shoujo and Josei have the highest percentages of female voters. Saying that, the percentage is still no more than 18% female
Top 3 Male-dominated anime series
- All moe/fanservice dominated series
- Top ten series in this categories are classified as either moe, fanservice or ecchi, with the exception of Cobra the Animation
Top 3 Female-dominated anime series
- The top three are unsurprisingly more Shoujo series. You can look at the pictures and get that vibe!
- Betrayal Knows My Name is the only series that has more female voters than males
- Males give rating of 7.36 for all anime series in 2010. Females give 7.56. Female is slightly more generous in term of rating but it is not a big margin by all means
Segmentation by demographic:
- Shoujo has the lowest. It’s value of 82% is heavily influenced by the fact it is made up of a sample size of 5, one of which has high male percentage and as many votes as the other 4 combined (Kaichou wa maid-sama; 86%; 872 votes). Ignoring this one anime, the other four has male-to-female ratio of 72%
- Interestingly, Seinen and Josei both have slightly higher male percentage than their younger demographic counterpart. Older women watch less anime?
ANIDB 2010 TOP 10
I cannot finish this edition of post without showing the top 10 anime based on permanent rating on AniDB
- Similar to what happened in ANN votes, Katanagatari ranks first again. This series seems to do much better in a rating environment than polling
- Nodame Cantabile: Finale and Big Windup 2 are also a few more series that do better in rating scenarios (5th and 7th in ANN) versus in ranking scenarios (29th and 36th in my ranking-dominated best-of-2010 list). I can’t use the logic that they are more obscure so often miss out in the ranking though since Nodame Cantabile: Finale‘s number of votes come in the top 10 of my sample size.
- Hidamari SketchxH, Rainbow and Heartcure Precure! make it in the list on the strength of potentially a very small sample sizes (327, 206 and 37 respectively). If we remove these three, the next three up are Shiki, Kaichou wa Maid-sama and K-ON!!
- Bottom 5 worst rated anime series are Seikon no Qwaser, Blessing of the Campanella, Ookami-kakushi, Iron Man and Chu-Bra!! in that order. It takes too much effort to put nice pictures for them so name calling like this will do.
- Seikon no Qwaser also has the dubious distinction of being the worst rated anime series from both ANN and AniDB. The online voting communities seem to know what their favourite and least favourite series are!
I can rather conclusively say that online anime rating is a very male-dominated world. Extrapolating this out a little bit, I can perhaps make quantitative case for suggesting anime watching is also of the same nature. I also love to see how well anime stereotypes track with actual data (moe anime is watched by male; pretty boys type attract girls). Not too difficult to predict but at least the numbers hold true:) It is interesting also to see how certain animes do better in rating vs. ranking and how consistent the rating is between AniDB and ANN. I definitely need to work on collecting more data for even more in-depth analysis!
Enough for now. I will dig deeper into age group and episode analysis in the next edition.
PS. I have included 83 series. Only 71 has information in AniDB database (Those without information are typically series which are still running, hence there is no way anyone could have finished them and give permanent ratings!)