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  • Automatic people counting + twittering.

    - by c2h2
    Want to develop a system accurately counting people that go through a normal 1-2m wide door. and twitter whenever people goes in or out and tells how many people remain inside. Now, Twitter part is easy, but people counting is difficult. There is some semi existing counting solution, but they do not quite fit my needs. My idea/algorithm: Should I get some infra-red camera mounting on top of my door and constantly monitoring, and divide the camera image into several grid and calculating they entering and gone? can you give me some suggestion and starting point?

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  • join same rails models twice, eg people has_many clubs through membership AND people has_many clubs through committee

    - by Ben
    Models: * Person * Club Relationships * Membership * Committee People should be able to join a club (Membership) People should be able to be on the board of a club (Committee) For my application these involve vastly different features, so I would prefer not to use a flag to set (is_board_member) or similar. I find myself wanting to write: People has_many :clubs :through = :membership # :as = :member? :foreign_key = :member_id? has_many :clubs :through = :committee # as (above) but I'm not really sure how to stitch this together

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  • How to handle people who lie on their resume

    - by Juliet
    I'm conducting technical interviews to fill a few .NET positions. Many of the people I interview really do know .NET pretty well, but I find at least 90% of embellish their skillset anywhere between "a little" and "quite drastically". Sometimes they fabricate skills relevant to the position they're applying for, sometimes they not. Most of the people I interview, even the most egregious liars, are not scam artists. They just want to stand out among the crowd, so they drop a few buzzwords on their resume like "JBoss", "LINQ", "web services", "Django" or whatever just to pad their skillset and stay competitive. (You might wonder if a person lies about those skills, whether they are just bluffing their way through a technical interview. My interviews involve a lot of hands-on coding and problem-solving -- people who attempt to bluff will bomb the hands-on coding portion in the first 3 minutes.) These are two open-ended questions, but it would really help me out when I make my recommendations to the hiring managers: 1) Regarding interviewing etiquette, should I attempt to determine whether a person really possesses all of the skills they claim to have? Can I do this without making the candidate feel uncomfortable? 2) Regarding the final decision, should I recommend candidates who are genuinely qualified for the positions they're applying for, even if they've fabricated portions of their skillset?

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  • How to develop good debugging skills? [closed]

    - by Sasha
    Possible Duplicate: Debugging techniques How can I improve my debugging skills? I am thinking in the context of C++ under UNIX, C#, and in general. Please suggest how I can improve in these areas in terms of: Approaches to take, where to start, and how to proceed. Tools to use, and how use them effectively. Recommended material (books, articles) to read and lectures to watch.

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  • How improve skills in Java?

    - by kumar kasimala
    I would like to get updates Java and related technogies news on every day so that I will new features of java, even I want to improve java skills by learning existing or new things which is related to logic, therory, programs, How do I get all above details & give me links , so that I will subscribe to it

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  • Synology DS210j & online backup: what do people recommend?

    - by Dean
    I've just purchased a Synology DS210j for my home network and would like to backup this NAS online. I noticed that DiskStation Manager v2.3 provides various options including Amazon S3 and rsync: Does anybody have some real usage against cost statistics for Amazon's S3 service? How is sensitive data protected on Amazon S3? Are there any rsync online backup options? If so, what do people recommend? UPDATE: I am still unable to find any decent answers to the above questions, can anybody help me out?

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  • Do most "normal" people use metro or desktop in Windows 8

    - by ihateapps
    Just curious since I don't fit the definition of a "normal" computer user nor have my friends or relatives upgraded to Windows 8 yet. Are most people in the "wild" (i.e. the "guy in starbucks" or "your friend who works as an auto tech". not you since you are on SU) using metro apps regularly to the point where the desktop is pointless or are they sticking with the desktop? I've gotten mixed statistics from Google. I'm asking for your personal anecdotal opinion based on what you notice in the wild.

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  • Encryption container for multiple people

    - by Adam M.
    I was just wondering if anyone may have come across a product that would allow for a container based encryption to be used by multiple people, in a Windows Server setup. I wanted to see if there might be something like a truecrypt that could handle being accessed by two accounts? Looking to see if there is a product that would have such properties that would allow only a hand full of users access to the content of the location, but allow for the files to be backed up a normal backup system. That way if a file had to be restored, the container could be redirected to another location for one of the users to get access to it? This would allow for access to be restricted beyond the NTFS and file share permissons

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  • how to maitain the authentication details/passwords in a 50 people company

    - by sabya
    What is the process that you guys follow to maintain authentication details like login ids and passwords? There will be definitely some shared passwords. So, the target is to minimize the impact when someone is leaving the company. By "shared password", I mean, the account, which is shared among multiple people in the company. The issues that the process should address are: - Affected areas. Quickly find the resources to which the leaving user was having access to. Forgetting password. What happens if a user forgets an authentication details? How does he get it? I think he shouldn't ask a team mate. I mean no-verbal communication. Find dependencies of a resource. Suppose I am changing the password for a mail account, which is getting used by some automated scripts to send mails. Here, the scripts are dependent on the mail account, so changing the password of the mail account means we have to change the password in the script too. So, how do find all the dependencies of a resource? I'd prefer a process which addresses these issues. But you can also recommend products which are open source and not hosted. I have gone through PassPack, but they don't solve #4. There is a similar question here. But that does not exactly answer my question.

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  • open source solution to a gateway for a network of a housing cooperative of 150 people

    - by SirDinosaur
    i just inherited a barely functioning network for a student housing cooperative of about 150 people. in it's current state, as i understand it from the previous person in charge of the network, we have working wireless access points and working ethernet cords going to working gigabit switches going to a barely functioning gateway (right now a simple home router) to one of three possible outbound connections. it is possible to connect to the network through the wireless or ethernet, but especially during peak hours, packets / connections are likely dropped or otherwise get no response. my intuition tells me to replace the gateway with something that can handle multiple outbound connections (WAN) and one inbound connection (LAN), while the rest of the network seems suitable for now. i'm somewhat knowledgable in Linux (been using Debian after first Arch Linux) and i want to use as much open source as possible, but i'm confused whether or not a simple server that i could easily understand will work for this situation. do i need specialized hardware to handle the switching more effectively? if so, what are my options? (i found this, thoughts?) or if a Debian server would work, anything else i should about the specs required for this type of server? also links to any useful information on using open source to maintain this type of network would be most appreciated. <3 P.S. crossposted http://redd.it/yybp2.

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  • Excel data representation: show me all people who did not pass the exam

    - by dreftymac
    Background I have an excel spreadsheet with the results of a pass/no-pass exam. Students are allowed to take the exam as often as they want until they either pass, or give up trying. student ;; result ;; date [email protected] ;; no-pass ;; 2000-06-07 [email protected] ;; pass ;; 2000-06-07 [email protected] ;; pass ;; 2000-06-07 [email protected] ;; no-pass ;; 2000-06-07 [email protected] ;; pass ;; 2000-06-07 [email protected] ;; pass ;; 2000-06-08 [email protected] ;; no-pass ;; 2000-06-08 Question Using a pivot-table or something else, how can I get excel to show me a clean report or representation of this data on another sheet that answers the question: Who are all the people who took the exam, but never got a passing grade? In the above example it would just show me [email protected] ;; no-pass ;; with all the dates that delta took the exam. I know excel is not a database nor a reporting tool per-se, but it would be great if I could get it to do this.

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  • Backup Picasa 'people' tags data

    - by pelms
    OK, so I've spent a fair amount of time putting names to faces in Picasa 3.5 but in a few days (hopefully) my copy of Windows 7 should arrive and I'll need to reinstall Windows. So, does anyone know what I need to backup so that I don't have to re-enter all those name tags? N.B. I'm on Windows 7 RC and know that I don't have to do a clean reinstall but I would prefer to. Outcome: I clean installed Windows 7 and downloaded and installed Picasa. Unfortunately, the download link on the UK Picasa homepage still pointed to Picasa 3.0 (rather than 3.5) which doesn't have face recognition. This scanned my photos folders and overwrote the picasa.ini files along with the people information   :¬( Fortunately I'd backed up the photos before installing Win 7, so after uninstalling Picasa 3.0 (along with it's database), restoring the photos from backup and installing Picasa 3.5, I finally got my face names back. Extra... Google has now posted advice on how to migrate to Windows 7 and keep your Picasa database, meaning that it will not need to rescan you photos and will retain all information about then including name tags. They have a method for upgrading and for a clean install of Win 7. Basically you need to back up: "C:\Users\%username%\AppData\Local\Google\Picasa2" and "C:\Users\%username%\AppData\Local\Google\Picasa2Albums"

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  • How do people type different languages into computer?

    - by pecker
    Hello, We have English keyboards. I never saw any other keyboard in my life. I've been wondering for a long time. How do people in Korea, China, Russia, Muslim countries and some European countries where English is less known. Do they have keyboards in their native language? I mean are the keyboard directly manufactured in their native language. Or do they use some kind of keyboard mapping softwares to acheive the task. I've been searching in Google images to have a glance at their computers but didn't find any real key pads for computers/smartphones. If they have some non-English keyboard. Then how would they type web URLs? URLs possible in other languages also? If they have to type English URLs then it also means that they need to know English. I've seen in some movies that they have all their softwares, windows have text in their native language. How do they have some different language? I feel lost & confused. If you have any screenshots / pics of such non-english computer please post. I want to see one.

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  • People not respecting good practices at workplace

    - by VexXtreme
    Hi There are some major issues in my company regarding practices, procedures and methodologies. First of all, we're a small firm and there are only 3-4 developers, one of which is our boss who isn't really a programmer, he just chimes in now and then and tries to do code some simple things. The biggest problems are: Major cowboy coding and lack of methodologies. I've tried explaining to everyone the benefits of TDD and unit testing, but I only got weird looks as if I'm talking nonsense. Even the boss gave me the reaction along the lines of "why do we need that? it's just unnecessary overhead and a waste of time". Nobody uses design patterns. I have to tell people not to write business logic in code behind, I have to remind them not to hardcode concrete implementations and dependencies into classes and cetera. I often feel like a nazi because of this and people think I'm enforcing unnecessary policies and use of design patterns. The biggest problem of all is that people don't even respect common sense security policies. I've noticed that college students who work on tech support use our continuous integration and source control server as a dump to store their music, videos, series they download from torrents and so on. You can imagine the horror when I realized that most of the partition reserved for source control backups was used by entire seasons of TV series and movies. Our development server isn't even connected to an UPS and surge protection. It's just plugged straight into the wall outlet. I asked the boss to buy surge protection, but he said it's unnecessary. All in all, I like working here because the atmosphere is very relaxed, money is good and we're all like a family (so don't advise me to quit), but I simply don't know how to explain to people that they need to stick to some standards and good practices in IT industry and that they can't behave so irresponsibly. Thanks for the advice

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  • Language/tech specific books which improve vendor-neutral development skills

    - by dotnetdev
    If I ask what the following books have in common: "Accelerated C# 2010, C# in Depth, Pro C# 2008", the answer would be that they would help me to improve my understanding of C# and secondly, my general coding skills. What language-specific/tech-specific books (like those named above) would teach me a great deal about general programming techniques and good habits? I'm thinking Java books would be very good for me (I code in C# primarily), as both these languages are similar and so I am sure that specialist books on Java threading, performance tuning, etc, can be applied to C# (not all 100% content of a Java book). Thanks

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  • Essential skills of a Data Scientist

    - by harshsinghal
    I would like to know more about the relevant skills in the arsenal of a Data Scientist, and with new technologies coming in every day, how one picks and chooses the essentials. A few ideas germane to this discussion: Knowing SQL and the use of a DB such as MySQL, PostgreSQL was great till the advent of NoSql and non-relational databases. MongoDB, CouchDB etc. are becoming popular to work with web-scale data. Knowing a stats tool like R is enough for analysis, but to create applications one may need to add Java, Python, and such others to the list. Data now comes in the form of text, urls, multi-media to name a few, and there are different paradigms associated with their manipulation. What about cluster computing, parallel computing, the cloud, Amazon EC2, Hadoop ? OLS Regression now has Artificial Neural Networks, Random Forests and other relatively exotic machine learning/data mining algos. for company Thoughts?

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  • Why are stackoverflow people nice? [closed]

    - by Satoru.Logic
    Hi, all. People on StackOverflow are always ready to help someone solve their problem, and I think I owe many thanks to all of those nice people. Sometimes I wonder what makes people wanna help, wanna share what they know to each other, and what makes them not. What do you think makes a community different so that ready-to-help just becomes a second nature of its members? Is there something we can learn from StackOverflow that can help us build an excellent team with ready-to-help members?

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  • SQL query: Number of comments posted in last 24 hours by people a user is following

    - by bflora
    I've got a site where users follow users they like and can read their latest updates. I'd like to show my users a simple count of how many comments the people they follow have posted in the last 24 hours. I'm having trouble figuring out the query. I have two tables. comment -cid (comment id) -timestamp -uid (id of person who posted the comment) -comment (content of the comment) user_relationships -requester_id (id of the user who followed the person) -requestee_id (id of the person who was followed) In plain english, I think the query is something like this: COUNT the cid.comment from the comments table where uid.comment is equal to requestee_id.user_relationships associated with requester_id.user_relationships value of X. I need to get all the UIDs of people being followed by a given UID from the user_relationship table. Then count up how many comments those people have posted in the last 24 hours and spit that number out. What would this query look like?

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  • Do you think that exposure to BASIC can mutilate your mind? [closed]

    - by bigown
    It is practically impossible to teach good programming to students that have had a prior exposure to BASIC: as potential programmers they are mentally mutilated beyond hope of regeneration -- Edsger W. Dijkstra I have deep respect to Dijkstra but I don't agree with everything he said/wrote. I disagree specially with this quote on linked paper wrote 35 years ago about the Dartmouth BASIC implementation. Many of my coworkers or friends programmers started with BASIC, questions below have answers that indicate many programmers had their first experience on programming at BASIC. AFAIK many good programmers started at BASIC programming. I'm not talking about Visual Basic or other "modern" dialects of BASIC running on machines full of resources. I'm talking about old times BASIC running on "toy" computer, that the programmer had to worry about saving small numbers that need not be calculated as a string to save a measly byte because the computer had only a few hundreds of them, or have to use computed goto for lack of a more powerful feature, and many other things which require the programmer to think much before doing something and forcing the programmer to be creative. If you had experience with old time BASIC on a machine with limited resources (have in mind that a simple micro-controller today has much more resources than a computer in 1975, do you think that BASIC help your mind to find better solutions, to think like an engineer or BASIC drag you to dark side of programming and mutilated you mentally? Is good to learn a programming language running on a computer full of resources where the novice programmer can do all wrong and the program runs without big problems? Or is it better to learn where the programmer can't go wrong? What can you say about the BASIC have helped you to be a better/worse programmer? Would you teach old BASIC running on a 2KB (virtual) machine to a coming programmer? Sure, only exposure to BASIC is bad. Maybe you share my opinion that modern BASIC doesn't help too much because modern BASIC, as long other programming languages, gives facilities which allow the programmer doesn't think deeper. Additional information: Why BASIC?

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  • How to dealing with the "programming blowhard"?

    - by Peter G.
    (Repost, I posted this in the wrong section before, sorry) So I'm sure everyone has run into this person at one point or another, someone catches wind of your project or idea and initially shows some interest. You get to talking about some of your methods and usually around this time they interject stating how you should use method X instead, or just use library Y. But not as a friendly suggestion, but bordering on a commandment. Often repeating the same advice over and over like a overzealous parrot. Personally, I like to reinvent the wheel when I'm learning, or even just for fun, even if it turns out worse than what's been done before. But this person apparently cannot fathom recreating ANY utility for such purposes, or possibly try something that doesn't strictly follow traditional OOP practices, and will settle for nothing except their sense of perfection, and thus naturally heave their criticism sludge down my ears full force. To top it off, they eventually start justifying their advice (retardation) by listing all the incredibly complex things they've coded single-handedly (usually along the lines of "trust me, I've made/used program X for a long time, blah blah blah"). Now, I'm far from being a programming master, I'm probably not even that good, and as such I value advice and critique, but I think advice/critique has a time and place. There is also a big difference between being helpful and being narcissistic. In the past I probably would have used a somewhat stronger George Carlin style dismissal, but I don't think burning bridges is the best approach anymore. Maybe I'm just an asshole, but do you have any advice on how to deal with this kind of verbal flogging?

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  • Developing a feature which sole purpose to be taken out?

    - by adib
    What is the name of the pattern in which individual contributors (programmers/designers) developed an artifact for the sole purpose is to serve as a diversion so that management can remove that feature in the final product? This is a folklore I heard from an ex-colleague who used to work at a large game development company. At that company, it is well known that middle management is pressurized to "give inputs" and "make changes" to the product otherwise they risk being seen as not contributing to the project. This situation have delayed many projects because of these superfluous "management inputs". In one project at the above company, the artists and developers created a supernumerary animated character that appears in every cutscene and sticks out like a sore thumb. They designed it in such a way that it can be easily removed before the game is shipped (this was when games were still sold in physical media and not a downloadable product). Obviously the management then voted to remove the animation. On the positive side, management didn't introduced any unnecessary changes that would have delayed the project because they have shown that they provided constructive inputs to the product. This process pattern has a name among game programmers that work in corporates, but I forgot what was the actual name. I believe it's duck-something. Anybody can help pointing out the name and perhaps some rather credible reference to how the pattern develops?.

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  • IoT? Time for Enterprise Architecture

    - by OTN ArchBeat
    Of course you've been listening to the latest OTN ArchBeat Podcast on the challenges and opportunities in the Internet of Things. If so, you'll also be interested in ZDNet blogger Joe McKendricks' recent post, Will the 'Internet of Things' make CIOs' jobs harder?. In that post McKendrick offers this important bit of advice that will certainly have architects saying "I told you so." Enterprises need to develop architectural approaches to the management of data. Meaning the development of repeatable processes to source, ingest, transform and store information. For years, IT managers simply bought more hardware and addressed data with on-off integration projects. Now it's time for enterprise architecture. IoT is an important new phase in the evolution of enterprise IT. Challenging? You bet! But meeting any such challenge requires big, broad thinking and planning. In that context Enterprise Architecture has always been important. But as IoT gains traction and speed, enterprise architecture should be top of mind for all concerned.

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