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My company has been using FogBugz for a while now and we are generally happy with it as a bug-tracking tool. I've been reading Joel Spolsky's articles about their Evidence Based Scheduling feature. It sounds great in theory, but I haven't seen much discussion about how well it actually works in practice. Before I spend a lot of time and effort trying to convince my co-workers to buy in to using it, I'd like to hear from people who have been using this feature in their development.
Have you been using FogBugz' EBS? If so, are you happy with it? Have its estimates been accurate enough to be helpful? With the benefit of hindsight, do you think it was worth the effort to set it up and input all of the information/estimates it requires? Is there some other mechanism that you found that works better?
(Note: I've deliberately posted this to stackoverflow.com rather than fogbugz.stackexchange.com, since I suspect that the user base at fogbugz.stackexchange.com might be unduly biased in favor of FogBugz -- in particular, ex-Fogbugz users who've moved on to something better are unlikely to read or post there)
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I was tasked with creating a machine learning algorithm that receives vibration signals and uses them to determine if a machine is going to fail. With that said, I have a small problem.
I am not sure which machine learning algorithm I need to generate this.
Furthermore, any resources that would help me implement said algorithm would be greatly appreciated. I don't have a dataset to work with for the time being so I am currently just drafting ideas.
In the abstract, this is not a terribly complicated problem. First, you'll have to decide/understand what length of time before failure is useful for you circumstances. Do you need to detect failure a week in advance? Or a day in advance? Or an hour in advance? (Of course, you may not be able to predict effectively at any of those time lengths.) Use the past to predict the future; use what you'll have available to predict what you don't know.
This may be a simple problem, may not really require any machine learning at all. BUT, your big problem now isn't methodology. It's lack of data.
You'll need to start recording data and exploring it before you can move forward.
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I need to write the backend for an event ticket selling system. Some companies would connect to the service in order to check for ticket availability in certain venues, book tickets and so on.
Reading about Erlang I though it could be a good choice since the system will have to support high concurrency, high availability but I don't know If it's a good choice for this problem domain.
Any help would be really appreciated. Thanks!
Erlang could be a good choice, yes, it sounds like something it would do a very good job.
But it's going to be hard for anyone here to be of much value for your decision, as you should also consider the knowledge level of the team, time & budget constraints, etc.
Ultimately, the best people to help you make this decision are the people in your team.
I suggest you take a look at OTP's finite state machines as I think it suits perfectly a ticket booking system.
I believe you can find a lot of examples either in the doc or on the web.
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It's been 20 years since I learned any coding and things are very different now. After playing with cakephp and yii, I decided on ROR. I'm having a blast!
My question is not so much about ROR, but the best way to learn anything.
I started learning ROR and found out about version control and git. That was interesting and lead me to a few days of really learning it. I got back to rails and found out about RVM. That too was really interesting and I spent a couple days learning that. It goes on and on like this. I almost obsess about every new thing I learn.
The real question: Is it better to learn just enough to get by in the beginning and go back later and learn the intricacies of your tools or is it better to really learn each tool as you go?
Hope this makes sense as it is more of a philosophical question than a technical one.
Thanks
I don't think you should learn whatever you are most interested in at the moment because this can easily get out of hand...
I suggest a more focused approach to learning. Pick a real project with a goal (it should be challenging, but still realistic). Then learn along the way to reach your goal. Try not to learn stuff that's not directly related, and make sure you learn everything that you need to come up with a really good, simple solution. When done, pick next goal and repeat.
I think you should learn whatever you are most interested in at the moment.
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This is something I've been wondering for a bit.
If you were to write a successful site/app, would writing it in rails give you and advantage, say for getting the app noticed, as opposed to writing it in PHP etc?
Do people/companies who write in ruby/rails actively promote that their site/app is written in rails so it gets more publicity/hype?
Appreciate any feedback/POV's.
Not much. People don't look under the covers. The advantage is that you can build it faster and change it faster, which means you get to market faster.
Though some companies mention that the app runs on Rails or built in NYC, regular users, as a rule, do not care what the app they are using is built upon. But if you plan to eventually sell it or draw the investments, the trendy technology will certainly give you some bonus points.
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For the last few years I've been working as a self-employed software developer. Doing various gigs as they came my way. For the most part I've been fairly lucky, as my own personal network has yielded all the work I need to sustain myself and then some. As I said, I've been lucky to get all my contracts, I haven't had to put any real effort into finding work yet.
Although I'm currently employed, I'm unhappy and thinking about moving on.
My question is for the experienced self-employed contractors, how did you find your contracts? Are recruiters/headhunters/agencies helpful? What is the best way to expand your professional network? Can the internet be useful?
Thanks for the tips
Craigslist, network with former co-workers. Stay away from rent-a-slave and elame sites. They will only waste your time and frustrate you (I want a youtube/facebook/amazon clone for under $500).
Local is better. Clients love to have you come onsite and talk with them.
It will take a bit but after a while, you will find enough clients who keep you busy and you won't have time to look for new ones :D.
Start off moonlighting so you can keep the lights on and the internet paid while this ramp up happens.
Good luck!