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April 14

CCtv home security surveillance videos

Hi there! Does anyone know a link where cctv videos of home security surveillance cameras are available? Like videos in normal circumstances and videos while some one jumping in house or breaking in. I need these for my automated surveillance research work. I searched a lot but couldn't find, except activity recognition data sets that i dont need. Any help in this regard will be highly appreciated. I'm in so much need of it. Cheers

If I read your question right: You have no trouble in finding web cams on the internet. What it appears your asking for, is for filtering out web-cams solely dedicated to security (rather than the infamous Trojan Room coffee pot type of subject). I don't think you will have much joy because most people that buy a web-cam, set them up as per instructions and don't included any identifier to denote that it is a security cam. Good question though, as a universally recognized identifier would make it easy for neighbors to keep watch their other neighbor property whilst they are away.--Aspro (talk) 14:41, 14 April 2015 (UTC)
Thanks Aspro for your reply. I guess, I gotta record some videos by myself and then work on it :(
For home security cameras, there are several options:
1) Record continuously, and don't delete. The problem here is that it will fill up whatever device you use for storage, so you would need to keep putting in new storage devices. This was originally tapes, but more likely to be hard drives or even flash drives these days.
2) Record continuously in a loop. That is, after some period of time, it records over the old stuff. This way you don't have to worry about running out of space, but you have to stop it from recording over anything important or it will be lost.
3) Record only when motion is detected. This can make the recording media last a lot longer, and also makes it quicker to find anything of interest. The media could still record in a loop with this method. Problems are that motion detectors don't always detect all motion, or may detect incidental motion, like a tree branch waving in the wind.
Note that cameras are often connected to computers for storing and played the recordings. This can either be a permanent connection, or perhaps a flash drive on the camera can be removed and inserted into the computer when viewing is required. StuRat (talk) 18:01, 14 April 2015 (UTC)
That's all very well, but the OP is asking: Out of all the millions of web-cam broadcasts now available, how does one focus on just security web cams. Most of my searches end up with fish-tanks (of fish) and kittens (and other things I won't mention) – why-oh-why are there so many kittens on web cams? Many PhD's have put there all into providing us with web-cams that anybody can afford – but what do we see – kittens, kittens, and more ruddy kittens.--Aspro (talk) 19:29, 14 April 2015 (UTC)
It sounds like you're working in computer vision and you're looking for a corpus or a Training_set, is that right? Something that can be used for things like machine learning and feature detection, maybe facial recognition or threat detection? If so, you might find something useful here [1]. If you are part of a University, you should make use of your network there. If you are part of a company, same deal. If you are on your own, then we might be able to help more if you can better explain the question and your research goals. SemanticMantis (talk) 19:47, 14 April 2015 (UTC)
Every cloud has a silver lining. Your frustration is a business opportunity. One could convince sellers of web-cams to include a CD of software ( it gives it a unique Unique selling proposition). Los Angeles citizens (in say Skid Row could enter their location and make there security info available world-wide. Then, should anybody in say Japan ( a different time zone where people are not asleep at the same time as LA) see someone breaking in a property that has a web-cam code, they can report (via email) to the local LA law enforcement. The ability to speak English doesn't come into it. An email with web cam frames showing the brake in and location is all the LA police need. The web cam just needs to come with the software that allows the owner to easily set his web cam up as a security cam.--Aspro (talk) 20:09, 14 April 2015 (UTC)

Escape from Planet PDF Reader!

When I open a .pdf file in my Windows 8 .pdf reader I am trapped - there is no minimized or close button and the only options I can find are sweeping in all the Windows buttons and then reopening my browser on the right hand side or reverting to the Task Manager. What's the proper way to exit? Hayttom 14:27, 14 April 2015 (UTC)

I can't answer your question, but have you tried pressing ALT-f4 or ALT-TAB to get out of it? You could also try another PDF reader. There are plenty of free ones available. I use Sumatra PDF.--Shantavira|feed me 17:31, 14 April 2015 (UTC)
If you are in full screen mode, the ESCAPE button (upper, left corner of keyboard) may get you out of that mode. As for why it starts in full screen mode, there must be a setting somewhere that can turn that off. StuRat (talk) 18:07, 14 April 2015 (UTC)
[ALT] plus 'F4'/'F11'. Face-grin.svg -- (Mr. Prophet (talk) 21:05, 14 April 2015 (UTC))
I'm not a windows 8 user, but isn't that one of the paridigm changes of the OS? That when you use an APP you aee IN the app, not you are on a desktop on which the app is running. As such there is no "full screen" vs "window" mode. It make it more like a tablet experience, rather than a desktop experience. I believe there are ways around it, such as the above mentioned free PDF readers, I personally use Foxit. Vespine (talk) 00:34, 15 April 2015 (UTC)
You may be right. Windows 8 = Yuk. StuRat (talk) 00:37, 15 April 2015 (UTC)
Thanks, everybody. First, I just noticed that when I open a .pdf, I *do* have a minimize and a close icon in the top right corner. But as soon as I mouse near to the top of my screen without aiming right for those icons, that top bar that contains them disappears forever. OK: Alt-F4 works perfectly. (I have an inkling that this is a basic Windows trick everybody knew except me.) Alt-F11 does nothing. Alt-TAB works perfectly. (See previous inkling.) ESC does nothing. I can live with Alt-F4, but I might also look at other viewers. Or apps. Hayttom 01:59, 15 April 2015 (UTC)
Resolved
Apology, I meant only 'F11', my careless mistake -- (Mr. Prophet (talk) 06:05, 15 April 2015 (UTC))
There's also an option for Windows 8 to display more like "Classic Windows", I believe. Others can tell you how, if you are interested. StuRat (talk) 02:14, 15 April 2015 (UTC)
I don't use Windows 8, looking forward to Windows 10 in the near future when I buy a new computer! Touchscreen hopefully! its already out now... -- (Mr. Prophet (talk) 06:05, 15 April 2015 (UTC))
Do you mean pressing the 'Windows' key on the 'keyboard' on Windows 8 Operating system? - Mr. Hayttom, try pressing it; wait for it to function... -- (Mr. Prophet (talk) 06:05, 15 April 2015 (UTC))
3 points. One is that the default PDF reader on Windows 8 is generally Microsoft's Reader which is a Metro/Modern UI application. If you set your PDF reader to be a desktop one, like Adobe Reader or the million others out there, then yes, this won't happen.
Other than the start screen, when using desktop application you should basically find no real significiant difference between Windows 8/8.1 and Windows 7, except that Windows 8/8.1 may perform better on lower end hardware. Contrary to the claim above there's no need to change anything do display a more classic Windows (unless by that you mean like XP or something) for anything but the start screen. And there's only really a small amount you can do within Windows 8.1 itself to change the start screen to be more traditional. You need to use third party apps if you want a completely traditional start menu, at least until Windows 10.
Presuming you're using Windows 8.1 update 1 (it sounds like you are otherwise you won't have the close or minimise button but in any case you should be), on Modern UI apps you should be able to move your mouse above the screen and the close and minise buttons should re-appear. You can also move your mouse to the top of the screen and drag the window all the way to the bottom of the screen to close it. To minimise it, just navigate to another window. Windows key+t should reveal the taskbar. Theoretically, moving the mouse to the bottom of the screen should also reveal the taskbar in Modern UI apps, but I've found this isn't totally reliable as have others [2]. Alternatively, you can scroll to the bottom left or top left of the screen to display the Metro/Modern UI start menu button and switch window menu. Finally you can use standard switching window hot keys (alt+tab, windows key+tab etc) as normal.
Nil Einne (talk) 09:00, 15 April 2015 (UTC)

April 15

Understanding booting sequence

Is it power on > reset vector > BIOS/UEFI > POST > MBR/GPT > OS? Where does the microchip fit here? Is any step missing here?--Nowsome (talk) 00:57, 15 April 2015 (UTC)

What microchip? Do you mean the CPU/SOC? Nil Einne (talk) 09:02, 15 April 2015 (UTC)
Exactly... for which microchip? This type of question would be best answered by consulting your CPU's programmer reference manual. For example, consider Intel Atom (one of Intel's simplest modern x86-style processors): the Boot Requirements App Note for Atom E6xx CPUs is quite a bit longer and details many steps the OP forgot about. If you only concern yourself with Intel systems you can get programmer reference manuals for nearly all of their product lines from http://ark.intel.com (the Intel documentation archive). Nimur (talk) 09:21, 15 April 2015 (UTC)

Tipa, Sharelatex

I'm currently writing a thesis on Sharelatex using the Harvard template, which has a harvard-thesis.cls file, a separate thesis.tex file which contains the skeleton of the thesis, and a folder that contains the chapters separately. So far, everytime I've had to include a new package for my purposes, I've always used \RequirePackage{packagename} in the harvard-thesis.cls file (I still can't figure out when to use \usepackage in the thesis.tex instead, so I just stick to \RequirePackage in the class file). I want to use the tipa package for writing IPA characters in the thesis, while using a font of my choice (Times New Roman or Georgia) for the rest fo my text. I've tried everything I could, but I can't seem to figure out the correct way to do so. I keep getting package errors, linebreak errors, and I included/deleted so many packages that now my file refuses to even compile properly. I need help. Does anyone here know how to include the tipa package alongside another font for the rest of the document? Thanks in advance. 124.123.160.189 (talk) 10:41, 15 April 2015 (UTC)

A few points - you might like to try Github or some other means of version control when working on something like a LaTeX thesis - even with good skill, it's just too easy to break things, and debugging your .cls files is probably not a good way to spend your time, compared to the actual content of the thesis. (Though my WP:OR is that debugging LaTeX can be a welcome diversion from other research challenges :)
Secondly, it may be helpful to include the error messages when asking for help.
More helpful would be a Minimal_Working_Example- e.g. the skeleton .tex, the thesis.cls, and an attempt to use Tipa.
I'm not sure how to solve your problem, but I would first try to \usepackage{tipa} in the skeleton .tex, and make no changes to the .cls. Actually, I would have done \usepackage in the .tex for everything, but that's just the way I was taught and what I understand.
If you don't get this resolved here in a few days, I'd recommend asking the same question (with error reports and minimal examples) on tex.stackexchange - they have far more LaTeX-expert eyes-per-day on questions than we do. Here's a list of their questions tagged with 'tipa' [3], you might also learn some useful things by scanning that. Finally, do you really need tipa? I'm not sure, but I think there would be alternate solutions, using a Unicode font for IPA characters and XeLaTeX/LuaLaTeX. Good luck! SemanticMantis (talk) 14:52, 15 April 2015 (UTC)
  • Oh, sorry, I forgot what ShareLaTeX actually was. This will be far easier if you have your own local TeX distribution - who knows what versions of what packages they have, and what the conflicts may be? It used to be a bit challenging to get a local install working properly, but it's pretty much one-click these days. I'd recommend getting MikTeX if you're using Windows or Linux, and TeXShop for OSX - I think that will work much better for you in the long run. SemanticMantis (talk) 14:57, 15 April 2015 (UTC)

OP here. (Hadn't logged in before posting that question. Also, why's this page suddenly semi-protected?) Thank you @SemanticMantis for those tips. I had tried getting a local install running on my Windows 7, but MikTeX gave me a lot of heartache and I gave up midway once I found ShareLaTeX. Also, it's easier to do collaborative work online, which means everyone else can see the updates without me having to notify them in person. Maybe I should try getting MikTex up and running though. I hear Sublime Text has very good LaTeX syntax highlighting and compiling features. La Alquimista 19:02, 15 April 2015 (UTC)

Oh, and, I finally figured out what was wrong with my document. I'd forgotten to close off the curly braces of a figure caption and the compiler couldn't figure out the error. Silly me. =P (Not that tipa is working. But I'll figure that out another day. Probably will work with Unicode fonts instead. Right now, the only way to get tipa to work is to use Times New Roman as my main font, but I hate Times New Roman.) La Alquimista 19:04, 15 April 2015 (UTC)

ChkTex does LaTex lint style checks, but I'm not sure what state the project is in, or how rigorous it is. LongHairedFop (talk) 15:08, 16 April 2015 (UTC)

April 16

Testing HTML/CSS/Javascript code

In the creation of a new website built on one's own server, can the amateur website starter test out his or her written code before publicizing the website, and if so, how can it be done in Notepad? Can people write Javascript code in Notepad? What about inserting media files into the website? How do people insert Java applets into the source code? 140.254.136.149 (talk) 13:59, 16 April 2015 (UTC)

If you are not doing anything server-side (cgi-bin, or server-side includes) etc, then place the HTML, JS, CSS, Java objects in a directory, and use the file:// protocol to open the HTML file. Or drag the starting HTML file into your browser, which might be easier. You can edit in Notepad, but a syntax highlighting editor will be better. On this note, if you are using Microsoft Windows, then Visual Web Developer Express is a free download. IIS Express, Microsoft's webserver is also free; it is limited to 4 connections at once, but that's fine for home testing. LongHairedFop (talk) 14:56, 16 April 2015 (UTC)


Chrome update volume 2

Referring to this question, the computer has been fixed and Chrome is working fine. I won't even bother to ask what went wrong and how that compares to information I was given.— Vchimpanzee • talk • contributions • 14:11, 16 April 2015 (UTC)

Windows program vs. Linux one-liner

The Linux Command web-site claims that in Linux you can discover how much space the directories are occupying by simply typing:

du -s * | sort -nr > $HOME/user_space_report.txt

while in Windows an engineer need to spend almost one full-day developing a C++ program to perform the same task.

Is this case still valid? Are there many situations at all were a Linux one-liner could perform the same task that could only be matched by a Windows program? --Llaanngg (talk) 17:08, 16 April 2015 (UTC)

In all honesty, I don't understand why it's so fashionable to try to mock Windows. In this specific instance, all the claim has done is demonstrate that its author does not know how to use Group Policy Management, Microsoft Management Console, Logical Disk Manager, or any of a wide variety of other Windows utilities. In other words, the "expert" who proffered this "tidbit of wisdom" is decidedly not an expert for an entire category of very popular software.
Windows is not trying to be Linux: it is foolish to think that the very same command (or even the same general style of workflow) is applicable to both systems. However, Windows does have advanced file system quota management, and this sort of tool is used by millions of home-, business-, and enterprise deployed customers.
(And while we are nitpicking: neither du nor sort are actually part of Linux. Most users get du from GNU CoreUtils; most users get sort from GNU Core Utils also. Some of us get these tools from elsewhere, du and sort, the lineage of which traces to either BSD or GNU. These tools can, and do, run on Windows: gnuwin32 and cygwin are two examples. The GNU CoreUtil tools were not authored, nor are they presently maintained, as part of the Linux project. There is a common tendency among some users to conflate everything that is good about computers with "linux" - even though that is largely a misinformed viewpoint. See GNU/Linux naming controversy for some history).
Nimur (talk) 17:46, 16 April 2015 (UTC)
I'd say the "case is still valid" in that an expert with a good toolkit can (in almost any environment) usually outperform the inexperienced programmer who is apt to take an inefficient approach and/or reinvent the wheel. Happens all the time. —Steve Summit (talk) 19:30, 16 April 2015 (UTC)
I think you (and Nimur) may have missed that this guy was running "a Linux-like command line environment for [the legacy OS]", specifically Cygwin (according to the link). Linux was never involved in this anecdote at all.
Writing an equivalent of du -s * | sort -nr in pure C++ (without shelling out) would take maybe 10 minutes. I hope the C++ program the engineer wrote did a bit more than that. Otherwise they should maybe have hired a different engineer. -- BenRG (talk) 04:03, 17 April 2015 (UTC)
Yes, but the author of the page wrote a textbook called The Linux Command Line - when what he really describes is the bash (shell). The bash shell is not Linux. It existed before linux; it runs on dozens of other operating systems. A book that primarily trains users in bash should be appropriately titled. Our OP may do well to switch to a better book series written by a more open-minded, well-informed author. I recommend the O'Reilly bash Cookbook or Learning the bash Shell for new users. There is also excellent free documentation: GNU bash documentation. Nimur (talk) 14:24, 17 April 2015 (UTC)

April 17

How can you visualize offline the running of a Python script?

For educational purposes, what tool could you use for seeing what your code is doing? I want something like variables being assigned, memory allocated and the like. I know of some online tools, but would like to have an offline equivalent. --ListCheck (talk) 14:09, 17 April 2015 (UTC)

Do you mean that you wish to visualize the control flow graph of a Python program, akin to visualizations produced by the Xcode clang/llvm static analyzer for a C (or other language) program?
This type of static code analysis is very difficult for Python, because Python is a very weakly-typed language. Some commercial tools exist: for example, SourceGraph, PySonar, and so on. These are not very user-friendly.
If I needed to analyze and debug Python, I would use pdb (part of the reference CPython implementation). This tool is decidedly not graphical : it produces no visualization, but it does allow me to "see what my code is doing" in a manner that is more powerful and interactive than simply printing log messages. In actual practice, I rarely do actually use pdb: I try to keep my control flow in Python sufficiently simple so that it does not require a lot of serious analysis; and I find that incorporating pdb requires non-trivial changes to my deployed Python software infrastructure. Your use-cases may vary.
Nimur (talk) 17:17, 18 April 2015 (UTC)

After an update, why does my screen look different and why am I not an authorized user?

HP Pavilion KT369AA-ABA a6512p Intel Pentium Dual CPU E2200 @2.20 Ghz, 4 GB RAM, 64 bits. Windows is 89583-OEM-7332157-00061 (all 2009).

I had a Windows update earlier this week and have used the computer today for the first time since I clicked to shut down the computer so the changes could be made. The update didn't happen normally because every other time it happened, I was given a "Stage 3" message and a percentage along with a message not to turn off my computer. This time, it just said "Please wait", and then I was told to enter my password, which I didn't since I was through for the day. I turned off the computer and didn't turn it back on until today.

There is a little box that looks like a stack of three books I've never seen in the lower left corner beside the little e to the right of a blue square which shows the desktop, which is in turn to the right of the start button, which is rectangular now instead of round as it has been all these years. If I click on the little box, I'm being told "C:Users\Vchimpanzee\Downloads\20100104-004-i64.exe" (my real first name is where "Vchimpanzee" is) wants access to my computer. That's less scary than the first message I got, which said Windows couldn't find something it needed. When I denied this "unknown" program access, things worked normally but everything looks strange. The taskbar is black on light gray instead of the other way around, and the name of the web page followed by "Windows Internet Explorer" is appearing at the top of the page for the first time in years, though it is black on blue rather than light gray or white on a black background.

My warranty has long since ended, so I'm not aware of anyone I could ask since this probably isn't related to my McAfee virus software, but maybe there's something online.— Vchimpanzee • talk • contributions • 18:34, 17 April 2015 (UTC)

I think this has got to be some sort of malware, and you should use System Restore to roll back to before it was installed.
"20100104-004-i64.exe" has the name format of a Norton/Symantec Antivirus update file ([4]), but there's no reason you'd suddenly be prompted to run an antivirus update from 2010, especially since you use McAfee. More likely it's malware using the name of a legitimate file that was commonly found on users' systems at one time. You could upload it to VirusTotal, which might identify the malware, which might be helpful if System Restore doesn't work. -- BenRG (talk) 20:42, 17 April 2015 (UTC)
Just thinking aloud... Do you know how to run this in a virtual machine. You could keep the original OS running but then mess around with 'this' update in VM to discover what's happening. Being lazy, I like to run updates in a VM first, until I'm sure they are stable. Updates, are often rushed out before they are proven.--Aspro (talk) 21:10, 17 April 2015 (UTC)
I've used System Restore before, but with Tech Support helping. I did something wrong, but everything looks normal again and three books are gone. I'll just hope for the best. Thanks.— Vchimpanzee • talk • contributions • 22:24, 17 April 2015 (UTC)
Just to clarify (I'm at a library since I don't have much to do, it's nearby and it's easier than turning on my own computer and waiting and waiting for everything to happen) I saw a blue screen and was never given a choice of restore points. When the blue screen didn't go away, I unplugged the computer and started over. I don't think turning it off worked either. I'll look for online information but if it doesn't happen again maybe I'm all right.— Vchimpanzee • talk • contributions • 17:34, 18 April 2015 (UTC)
As I figured, I don't know what to search for. I found something from 2009 but it wasn't helpful. And I should mention I told McAfee to do a full scan because that's something I do on Friday.— Vchimpanzee • talk • contributions • 17:38, 18 April 2015 (UTC)
Also, I kept being told to use Windows Defender because I was not protected. I have been told this is not needed if I have McAfee, so it gave me the option to exit and I did. That was before all this happened.— Vchimpanzee • talk • contributions • 17:42, 18 April 2015 (UTC)

Google Chrome no longer supporting JavaScript ?

I got a message from my EA games account claiming this. They said there was a way to retain support until September, but not after that. Is this correct ? If so, why ? Here's the link the email I received points to:

http://help.ea.com/en/article/google-chrome-no-longer-supports-java/?utm_campaign=fp_chrome_java_important_announcement_041515_toplogo

Thanks, StuRat (talk) 19:11, 17 April 2015 (UTC)

I think they mean Java, not JavaScript. Google plans to phase out any and all plugin support still using NPAPI in favor of their own Native client, and Java does not support that (yet?). -- [[User:Edokter]] {{talk}} 19:12, 17 April 2015 (UTC)
They don't just mean Java, but in the link above, they say Java, which is completely unrelated to JavaScript. --ListCheck (talk) 01:35, 18 April 2015 (UTC)
NB: Java is not JavaScript - this page [5] from the Chrome dev blog says they will stop supporting NPAPI, hence Java. They say it has something to do with mobile support. Here's some more coverage [6]. Really, NPAPI came out in 1995, and there are probably much better modern alternatives. Apparently there are some security concerns with Java, and that's also part of it. Anyway, to continue playing java-based web games after September, just use Firefox or some other decent (i.e. not IE) browser. SemanticMantis (talk) 19:15, 17 April 2015 (UTC)
They want to drop NPAPI plugins because they're insecure. Mobile support doesn't really have anything to do with it—they just pointed out in the article that NPAPI is already absent on mobile (and the world hasn't ended). The security concerns with Java aren't really the problem either—any NPAPI plugin with an exploitable bug makes Chrome's sandbox moot. Java is apparently worse than the others (at least the others that are widely deployed), but they probably all have exploitable bugs.
There doesn't appear to be any good modern alternative to NPAPI. Chrome has PPAPI, but Mozilla isn't interested in supporting it and I doubt Microsoft is. Mozilla is opposed to new plugin APIs because it wants to ban all plugins and do everything in Javascript, but that seems unlikely to happen for a while, if ever. For the time being it looks like people will have to develop three versions of their plugins: one for IE, one for Chrome (and Opera) and one for all the other browsers.
Use Firefox to run Java games if you want, but there's nothing wrong with (modern) IE. -- BenRG (talk) 05:15, 18 April 2015 (UTC)
I can't really search for the correct link as my internet usage is limited, but I can provide you this [1], hope this helps -- Mr. Prophet (talk) 18:49, 18 April 2015 (UTC)
Opera will probably lose NPAPI support as well, since it's now based on Chromium's layout engine. See this thread. -- BenRG (talk) 19:03, 18 April 2015 (UTC)
References

Algorithmic composition software

Per edit request. ―Mandruss  20:03, 17 April 2015 (UTC)

Is there any algorithmic composition software for Windows which I can use to create classical music melodies automatically without knowing anything about music? Thanks — Preceding unsigned comment added by 93.126.105.41 (talk) 19:59, 17 April 2015 (UTC)

You could give Wolfram a try: [7], the music is not very good though. --ListCheck (talk) 21:05, 17 April 2015 (UTC)

April 18

Arrangement of category pages in MediaWiki software

I'm a volunteer editor with the LGBT UK History Project, a wiki using MediaWiki software (version 1.21.2). There is an oddity with the display of Category pages. For instance the page showing the "CHE groups" category (http://www.lgbthistoryuk.org/wiki/index.php?title=Category:CHE_groups) lists the groups in this category alphabetically, except that the "Central London CHE Group" entry is shown in the middle of the entries starting with the letter L. This is presumably related to the fact that the page in question has been renamed from "London Central CHE Group" and is still occupying roughly its original position in the sequence despite having been renamed. Is this a known feature of the software? Can anything be done to correct it?--rossb (talk) 11:30, 18 April 2015 (UTC)

Try doing a null edit on the category page to purge the cache. -- Finlay McWalterTalk 14:07, 18 April 2015 (UTC)
It's odd that the article gets its own "C" heading in the middle of the L's. I haven't seen this in ten years at the English Wikipedia. A null edit on the article (or any other edit after the move) may have better chances of fixing it than a null edit on the category page. If neither works then try to remove the categories from the article, save the article, and then readd the categories. PrimeHunter (talk) 17:32, 18 April 2015 (UTC)

Shutdown mechanism

What is the mechanism that shuts down a computer if the CPU overheats?--BoldEditor (talk) 20:51, 18 April 2015 (UTC)

Not sure of the specifics, but it would seem to be more likely to be hardware-only mechanism, rather than relying on software, as I would expect a "Shutdown due to overheating in 9..8..7..." message if software was involved. StuRat (talk) 20:54, 18 April 2015 (UTC)
With Intel CPUs at least, there appears to be a sensor built in: "When processor core temperature reaches a factory preset level, the sensor trips and processor execution is halted until after the next reset cycle". [8]. AndyTheGrump (talk) 21:22, 18 April 2015 (UTC)
There is still a temperature sensor in the CPU, but I'm not certain the hardware shutdown mechanism exists any more. The manual says it was implemented in P6 family, P4, Xeon, and Pentium M processors. It doesn't mention Core processors, and later it does mention them when talking about newer thermal monitoring mechanisms. -- BenRG (talk) 03:41, 19 April 2015 (UTC)
If you mean an orderly shutdown (asking if you want to save changes, etc.), that would be the OS, but I don't know if any do that. If you mean an abrupt power down, generally that would be the job of the embedded controller. There may also be a pure hardware mechanism in some CPUs, but see my response to AndyTheGrump. -- BenRG (talk) 03:41, 19 April 2015 (UTC)
If you are primarily interested in Intel processors, consider reading the Intel Processor Operation Temperature FAQ. That page refers you to more technical information for individual processor models. In general, it is the role of the system provider to guarantee with high confidence that software can not possibly run in such a way as to cause damage to the CPU. This often means using an external controller; for example, Apple computers that use Intel CPUs typically contain a System Management Controller to monitor thermal levels and control active cooling (fans). Other system vendors may use different software- or hardware- solutions. Nimur (talk) 15:12, 19 April 2015 (UTC)

April 19

Regarding Facebook's People You May Know List

Hello everyone, I have a question about the People You May Know List of Facebook. Facebook says, "People You May Know are people on Facebook that you might know. We show you people based on mutual friends, work and education information, networks you’re part of, contacts you’ve imported and many other factors." Notice the last three words of their statement. I've read some stories online from people about coincidences and occurrences that have happened to them that have caused them to believe that the People You May Know feature also shows people who have viewed your profile many times, especially when no such connections or mutual friends is apparent. I have my own personal suspicions in my case, but that's for outside the Reference Desk. Some online articles like this one and this one claim that possibly one of the ways to implicitly find out (In LinkedIn, it is more explicit people say) who has probably looked at your profile multiple times or is stalking you is if you look at your friend suggestions and see If you see someone who does not share any mutual friends with you. Is there any shred of truth to this? Willminator (talk) 05:35, 19 April 2015 (UTC)

I think one of the major factors is location. They keep sending me the same list of "people I may know", apparently based only on that. StuRat (talk) 08:33, 19 April 2015 (UTC)
(WP:OR - FB has creeped me out with a few choice individuals that I "may know" - I do indeed know them. I don't have linked in, I've never interacted with them online in any manner, and they live ~1000 miles away. I don't have their numbers in my phonebook on my phone. I did call/text them a few times a few years ago... make of that what you will. I tried to research the topic when it came up for me, but I quickly realized that, short of a court order, nobody but FB knows with certainty what kind of data they are scraping from you. You'll find lots of speculation, but very few reliable sources. ) SemanticMantis (talk) 15:47, 19 April 2015 (UTC)
WP:OR: one of the most effective ways to make data-surveillance companies cease aggregating your data is to convince them that you are in fact a spambot. You can behave like a spambot by sending spam-like mail, hopping IP addresses, using abnormal user-clients, sending malformed HTTP requests, extensively spidering web pages, and so on. Once you are positively identified as a bot, these large-scale surveillance services significantly reduce their efforts to aggregate your personal data. Human friends and acquaintances will easily recognize you by name, but algorithmic aggregators will associate your name and persona with a blacklisted spambot! Nimur (talk) 17:36, 19 April 2015 (UTC)