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Old 2014-05-15, 16:30   Link #7501
Dextro
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Join Date: Feb 2008
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Quote:
Originally Posted by Frailty View Post
Sometimes, whenever I upload a jpeg image on the internet, the image quality somehow downgrades. Any particular reason for this? Is it the bandwidth? how can I upload the image with assurance that the quality won't be lowered?

sorry for the multiple questions
I don't think there's anything you can do. Some websites re-encode the jpeg you upload which inevitably lowers quality. Jpeg is a rather complex format that doesn't really store colors but frequencies, I believe, which makes it very adversely affected by re-encodings (just cropping a jpeg can lead to loss in quality). To top it off plenty of sites force the quality settings of the algorithm to a very low size setting which leads to even more compression artefacts. The users really can't do much to fix this.
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Old 2014-05-15, 18:33   Link #7502
Kotohono
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Quote:
Originally Posted by Frailty View Post
Sometimes, whenever I upload a jpeg image on the internet, the image quality somehow downgrades. Any particular reason for this? Is it the bandwidth? how can I upload the image with assurance that the quality won't be lowered?

sorry for the multiple questions
What website are you using to host as different image hosts have different limitations on how and what you can upload.
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Old 2014-05-15, 19:22   Link #7503
Frailty
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Quote:
Originally Posted by Dextro View Post
I don't think there's anything you can do. Some websites re-encode the jpeg you upload which inevitably lowers quality. Jpeg is a rather complex format that doesn't really store colors but frequencies, I believe, which makes it very adversely affected by re-encodings (just cropping a jpeg can lead to loss in quality). To top it off plenty of sites force the quality settings of the algorithm to a very low size setting which leads to even more compression artefacts. The users really can't do much to fix this.
Well that sucks. The png versions of my tags aren't usable here.

Quote:
Originally Posted by Konakaga View Post
What website are you using to host as different image hosts have different limitations on how and what you can upload.
I'm using imgur. I've been using that for quite a while but it has never happened to me before in imgur
in fact, I switched to imgur from photobucket because of the quality degrading thing.

thank you guys
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Old 2014-05-16, 02:27   Link #7504
Dextro
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You can always upload the png file to imgur instead of a jpeg. Png doesn't have to the same scaling issues as the later format so it might help.
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Old 2014-05-18, 09:09   Link #7505
risingstar3110
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Quote:
Originally Posted by oompa loompa View Post
Well yes, there is a reliable sample size, depending on the amount of variables, and the distribution it comes from, because you fix the probability of precision, (usually 95%, I don't remember if that's just convention or if it maximizes power somehow), so your gains from increasing sample size beyond a point decrease dramatically.

Also, since you calculate your SD from your variance, it is again important to have a large sample size because variance IS something you can test statistically, not with a p-value, but still. In this example, the number of variables isn't given, but if it's more than 3 I can definitely say that 3 is not enough. Besides, SD is a useless statistic without a sample mean (which I'm assuming is also being calculated), I'm a little rusty (and generally stats is not my strong suit) but since the sample mean is derived from a normal distribution by the CLT, there is going to be an associated t-statistic and p-value.

It's not misleading if you're not trying to mislead anyone. It is misleading if the claim is that an SD with 3 data points (and less than 3 variables) is a good predictor for what the deviations of the results of future experiments will be. For example, if you get a result greater than x number of SD's for your 4th experiment, how will you know if something went wrong or right? Forget SD, if you don't have a reliable mean, how will you know whether your result was close to what the 'usual' result is or not? If you don't have a reliable variance, how will you know how much deviation is acceptable without being called an abnormality?

At the same time, I agree with you that 3 is better than nothing. Its always going to help, but one would have to say that the results are merely indicative, and not a reliable predictor for how future experiments will pan out.
Sorry guys were, out of it till now.

Of course in an ideal world, we will like to set out a survey of 100 samples with 100 duplicates, but general we don't have enough time and human resources to follow up with that.

What I did was basically set up an experiment which from 10 data point, to produce a trend (something linear, like interviewing 10 people to link the coffee consumption with ages for example). I generally agree that a repeat have to be done to make sure that the results will be accurate.

But when it comes to data analysis, what i think we have to do is: repeat the experiment, and then set up a trend based on the 20 data points (10+10), and draw a line on that, taking the R^2 as variance

My boss meanwhile want to repeat the experiment three times (interview 10 people each), draw a trend, get the slope each time, then do standard deviation(SD) for those 3 just to get SD, which i found really absurd. I means I saw guys in my office even try to put in that +/- sign for his data using only 2 data points before, just to suit my boss taste.
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Old 2014-05-18, 12:35   Link #7506
oompa loompa
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Quote:
Originally Posted by risingstar3110 View Post
Sorry guys were, out of it till now.

Of course in an ideal world, we will like to set out a survey of 100 samples with 100 duplicates, but general we don't have enough time and human resources to follow up with that.

What I did was basically set up an experiment which from 10 data point, to produce a trend (something linear, like interviewing 10 people to link the coffee consumption with ages for example). I generally agree that a repeat have to be done to make sure that the results will be accurate.

But when it comes to data analysis, what i think we have to do is: repeat the experiment, and then set up a trend based on the 20 data points (10+10), and draw a line on that, taking the R^2 as variance

My boss meanwhile want to repeat the experiment three times (interview 10 people each), draw a trend, get the slope each time, then do standard deviation(SD) for those 3 just to get SD, which i found really absurd. I means I saw guys in my office even try to put in that +/- sign for his data using only 2 data points before, just to suit my boss taste.
So you have 30 data points. Don't analyze each trend separately, you can assume that each data point is drawn from the same population distribution. If the sampling is done randomly, just assume that they're all from one sample. 30 data points is not much, but its not bad either. You're going to want to run an OLS regression, and you'll probably want to control for other things apart from age, but I leave that up to you.

If you can, try to get a statistical software, either R or Stata ( I think R is free, but stata is hella expensive, you can download it illegally if you want), and they will do all the analysis for you. You could also do it on excel, but its a little more complicated. At any rate I don't think you want to be calculating this stuff manually. Also R^2 and variance are not the same thing, A simple way to look at R^2 is the amount (%) of variance explained by your regression. I really recommend you do it with some statistical software, it will make your life soooo much easier. Just put your data in, write one line of code, and poof! you'll get a full statistical summary with everything you need. It will also summarize your raw data for you, with your means, SD variance, etc.
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Old 2014-05-20, 07:25   Link #7507
Haak
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Do the phrases "fuck my life" and "YOLO" have Japanese equivalents?
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Old 2014-05-20, 13:57   Link #7508
Dextro
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Quote:
Originally Posted by Haak View Post
Do the phrases "fuck my life" and "YOLO" have Japanese equivalents?
Does "Fukou da" work for the first one?
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Old 2014-05-21, 07:13   Link #7509
Haak
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That's more of a less obscene version of "Fuck me" than "Fuck my life" but I guess it would have to do.
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Old 2014-05-28, 10:28   Link #7510
risingstar3110
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Anyone think too many half-Japanese character in recent anime/manga/ LN had dad as Japanese and Mum (or sometime grandmother) as foreigner instead of another way around (despite the other is much more common)?

Was it something negative to male audience in general (as Japanese girls choosing a foreign man), so the author have to avoid backslash?

If not, do you know many recent anime with half Japanese characters having foreign dad?
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Old 2014-05-30, 02:36   Link #7511
Irenicus
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I get the feeling they sort of interpreted "dominant" ethnicity based on the father side, so an offspring of a Japanese father x foreign mother is a Japanese with exotic brushes, while the other way around is actually an exotic foreigner who has some Japanese ties.

So it's like, "how come you can speak English/French/Sindarin so well?" "Well, my mom's elvish," vs. "wow, your Japanese is good!" "Thanks, my mom is Japanese, so..."

*Speaking only for anime/fiction. No idea how halfs are interpreted socially in reality.
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Old 2014-06-07, 12:20   Link #7512
Tiberium Wolf
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What's the difference between LN and Web novel?

I see translations of LN but no web novels.
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Old 2014-06-08, 15:43   Link #7513
risingstar3110
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This could belong to the old silly thread:

But you know how sometime people suggested you to "go see your doctor" for annual check up or things like that, who exactly are these doctors?

This could be silly to say, but I never got sick before. I still remember the last time i got a cold (the normally bed-ridden kind in anime), and it was 10 years ago, but I even dragged myself to school and had my drama class in the freezing hall. Never break a bone, strain my muscle, or anything that requires more than an hour of sleep to recover.

That's why when someone suggested me to "go see your doctor for annual check up" it just puzzle me deeply. Who is my "doctor" in this case? My best guess is a private doctor who I should have seen form time to time, and who under covered by the state universal healthcare (called Medicare here)? How can I pick up a doctor in this case? Just look for nearby clinic? Or do I have to go to a hospital for it?
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Old 2014-06-08, 16:24   Link #7514
monster
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I don't know how it works in Australia, but in the US, it's usually your general practice/family doctor that you get from your insurance company, either picked by your insurance company or chosen by you amongst a lists of doctors that are contracted with your insurance company.

I suggest either to ask your insurance company for a doctor or, if that's not how it works in Australia, then maybe you can go to your local hospital and ask about information on how to get a doctor.
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Old 2014-06-09, 22:44   Link #7515
risingstar3110
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More question if everyone don't mind

Haven't made a ppt since uni time. But back then we didn't have to worry about the whole copy right issue. Now can't just google image and copy down whatever i see fit anymore.

Hence was just wondering if there is any website that lists open-source (free to use) pictures or illustrations that we can use freely on ppt without any concerns? The list in Microsoft PowerPoint is too limited for me
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Old 2014-06-09, 23:24   Link #7516
erneiz_hyde
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It's just a presentation right? Can't you just cite the source you take it from? Like below the picture or in the very back? Didn't you have to do that in uni as well? Unless you plan on using said images in commercial products like magazines, printed shirts, etc I don't think there should be a problem, though cmiiw.
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Old 2014-06-10, 00:46   Link #7517
risingstar3110
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Quote:
Originally Posted by erneiz_hyde View Post
It's just a presentation right? Can't you just cite the source you take it from? Like below the picture or in the very back? Didn't you have to do that in uni as well? Unless you plan on using said images in commercial products like magazines, printed shirts, etc I don't think there should be a problem, though cmiiw.
Really?

I'm not really knowledge on those copy right law and issues. Thought i have to send email to every website or blog, asking whether i can use their images

Found a decent one here as well: http://www.freedigitalphotos.net/
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Old 2014-06-13, 12:36   Link #7518
milan kyuubi
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Is it true that members are only allowed to create one thread in Fan Creations forum? If it is true. Why was such a rule made?
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Old 2014-06-13, 14:48   Link #7519
Daniel E.
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Quote:
Originally Posted by milan kyuubi View Post
Is it true that members are only allowed to create one thread in Fan Creations forum? If it is true. Why was such a rule made?
It's true and the rule was made to avoid a handful of members from taking over the first pages. Fan writers alone could easily generate 5 or 6 threads on their own and that would leave very little exposure for the people with just one thread.

If your thread falls to the second/third page, just because member x wants a topic for each of his works, then you might as well not bother making any, since very few people will actually notice your thread.
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Old 2014-06-14, 10:32   Link #7520
kirikirito334
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Good decision by the admin/s! This site well taken care of.
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