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Tracing child abusers: Where was this picture taken? [video]

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Re: Tracing child abusers: Where was this picture taken? [video]

#81

Earlier quoted context omitted.

These "presentations" are very vague. What crimes, specifically, do they try to prevent or prosecute? Why victims are not complaining about these crimes?

well because the victims are usually threatened, children.

"Usually" does not mean "always".

Giving threats is a crime in itself.

Threatening victims does not guarantee victims' silence.

If that crime is widespread then there still should be plenty of victims who, actually, report that crime.

Re: Tracing child abusers: Where was this picture taken? [video]

#82

Earlier quoted context omitted.

These "presentations" are very vague. What crimes, specifically, do they try to prevent or prosecute? Why victims are not complaining about these crimes?

If they did who would listen? If they did what risks and repercussions do they face? This also presumes they're strong enough to speak up in the first place. If you're a victim of this kind of abuse you usually aren't.

> If they did who would listen?

Police.

> If they did what risks and repercussions do they face?

Based on my experience as a victim of a crime, complaint to police very quickly reduced my risk of repercussions -- as soon as perpetrators faced police.

> this kind of abuse

What kind of abuse?

Re: Tracing child abusers: Where was this picture taken? [video]

#83
post #23
post #2

Hopefully we'll come to a point soon where AI and deep learning can help out in this space. I remember models being trained that could predict the country based on a street view photo with a high degree of accuracy, which would be a good first step. The next one would be to either match a top-down satellite photo with a picture, or figure out a way to match street view photos based on similarity. Given that Google ac…

That’s not really how any of this works—you can’t simply throw a bunch of unrelated data at some algorithms and expect usable output. (There’s also no such thing as “deep learning”.) Law enforcement and related organizations already use machine learning quite a bit, particularly for image enhancement. Yes, Google does have a lot of images of various locations from a top-down perspective, but that isn’t helpful for ac…

> That’s not really how any of this works—you can’t simply throw a bunch of unrelated data at some algorithms and expect usable output.

That is never what I claimed. First, note that I took a pretty (IMO) balanced view and indicated that this is still a hard setting. Second, note that I did indicate that sufficient training (i.e. labeled) data would be required.

This is what was possible in 2016: https://www.theverge.com/2016/2/25/11112594/google-new-deep-...: "The new deep-learning program churns through millions of photos to determine the best match."

Also see project of a fast.ai participant: "Which of the 110 countries a satellite image belongs to?" (point 13 here: https://forums.fast.ai/t/deep-learning-lesson-2-notes/28772)

> (There’s also no such thing as “deep learning”.)

- https://www.deeplearningbook.org/

- https://www.coursera.org/courses?query=deep%20learning

- https://eu.udacity.com/course/intro-to-tensorflow-for-deep-l...

- https://www.edx.org/professional-certificate/ibm-deep-learni...

- https://www.deeplearning.ai

- https://www.fast.ai/

> Yes, Google does have a lot of images of various locations from a top-down perspective, but that isn’t helpful for accurately determining a location from the images that Europol collects. You might be able to narrow it down to a probably country based colors and design patterns, but that’s hardly sufficient and not solid enough evidence to actually do anything.

Maybe not completely, but again: being able to narrow it down would already be an incredible help, especially for outdoor pictures (which were also shown in the article's video). I never claimed that a model would completely replace the human process.

Also, I find the downvotes (not saying you) on my initial comment to be in pretty bad form. I'm not Jeremy Howard or Andrew Ng, but don't think I was blowing smoke, and work in the area of data science and ML.

Re: Tracing child abusers: Where was this picture taken? [video]

#85

Earlier quoted context omitted.

If they did who would listen? If they did what risks and repercussions do they face? This also presumes they're strong enough to speak up in the first place. If you're a victim of this kind of abuse you usually aren't.

> If they did who would listen? Police. > If they did what risks and repercussions do they face? Based on my experience as a victim of a crime, complaint to police very quickly reduced my risk of repercussions -- as soon as perpetrators faced police. > this kind of abuse What kind of abuse?

> What kind of abuse?

Child sexual exploitation is a well researched bit of criminology. Jessica Eaton has a lot of research focusing on female victims which covers all of this stuff.

Re: Tracing child abusers: Where was this picture taken? [video]

#86
post #85

Earlier quoted context omitted.

> If they did who would listen? Police. > If they did what risks and repercussions do they face? Based on my experience as a victim of a crime, complaint to police very quickly reduced my risk of repercussions -- as soon as perpetrators faced police. > this kind of abuse What kind of abuse?

> What kind of abuse? Child sexual exploitation is a well researched bit of criminology. Jessica Eaton has a lot of research focusing on female victims which covers all of this stuff.

I've been trying to figure out what dennisgorelik's angle is in his comments in this thread and can't quite figure it out. I've decided not to respond directly because they're obviously not coming from a rational person who's spent even a few moments thinking about what he's writing.

Everything I've written as a response comes off as patronizing at best and incredibly rude at worst so I've decided to just not respond at all. It's kept me up half the night to be honest because his perniciously ignorant responses are so rage inducing.

Re: Tracing child abusers: Where was this picture taken? [video]

#87
post #58

Looking at the swingset photo ( https://www.europol.europa.eu/sites/default/files/styles/eur... ) That's an interesting design of swingset; not one I've seen before. Unlike the bog-standard swingset in the US, which is typically all steel tube, that one looks like it has extruded (aluminum?) verticals and then a tubular horizontal weldment as the top piece. Further, the horizontal looks like it was hot-dip galvanized…

Is that an unusual swingset design? I'm pretty sure i've seen it in lots of places...

The metal arches as reinforcements in the top corners are not so common. The use of polyethylene plaques as decor and reinforcements started in 1970 it seems.

Re: Tracing child abusers: Where was this picture taken? [video]

#88
post #58

Looking at the swingset photo ( https://www.europol.europa.eu/sites/default/files/styles/eur... ) That's an interesting design of swingset; not one I've seen before. Unlike the bog-standard swingset in the US, which is typically all steel tube, that one looks like it has extruded (aluminum?) verticals and then a tubular horizontal weldment as the top piece. Further, the horizontal looks like it was hot-dip galvanized…

Replying to myself because I got an email from a user with a match:

http://igra23.ru/katalog/karuseli-kacheli-balansiry/kacheli-...

It has the swept-bend tubular corner reinforcements, the polyethylene (or some other kind of plastic) panels on the upper corners, etc. The only difference I can see between the product photo and the Europol one is that, in the Europol photo, the top bar seems galvanized rather than painted. But that's the sort of thing that could easily change as a product is marketed.

It appears the company is out of Krasnodar (Краснода́р), located in southern Russia.

Re: Tracing child abusers: Where was this picture taken? [video]

#89

Earlier quoted context omitted.

If they did who would listen? If they did what risks and repercussions do they face? This also presumes they're strong enough to speak up in the first place. If you're a victim of this kind of abuse you usually aren't.

> If they did who would listen? Police. > If they did what risks and repercussions do they face? Based on my experience as a victim of a crime, complaint to police very quickly reduced my risk of repercussions -- as soon as perpetrators faced police. > this kind of abuse What kind of abuse?

Police. Right.

Sure.

Your anecdotal experience is of only minor consequence here.

I've known people that have been abused by the police and other authority figures.

Plus if you're a minor and you're being abused by your guardian and the police show up to ask questions you're going to face backlash and it isn't going to be good.

For some there's really nowhere to go for justice.

Re: Tracing child abusers: Where was this picture taken? [video]

#90
post #86
post #85

Earlier quoted context omitted.

> What kind of abuse? Child sexual exploitation is a well researched bit of criminology. Jessica Eaton has a lot of research focusing on female victims which covers all of this stuff.

I've been trying to figure out what dennisgorelik's angle is in his comments in this thread and can't quite figure it out. I've decided not to respond directly because they're obviously not coming from a rational person who's spent even a few moments thinking about what he's writing. Everything I've written as a response comes off as patronizing at best and incredibly rude at worst so I've decided to just not respond…

I strongly agree with you, and it took me considerable effort to write the post I did as calmly as I did. And I'm going to take the advice to dis-engage.
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