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Comment Code review (Score 1) 347

Where I work, everyone code reviews each others code. I find this to be the best way to propagate best practices. Novices programmers not only get comments from more experienced programmers but they also review code written by experienced members of the team. Discussions are as important as the initial comments. Code review cuts down significantly on bad habits because it is easier to fix things you know will be caught then to go back and fix them later.

Also we have reviews on code design too. This is done before writing code to prevent rewriting everything that is already submitted.

Submission + - Poll: What electronics do you want in your car 1

sleepypsycho writes: What electronics do you want in you car?
- Self driving car
- Collision avoidance
- Integrated electronics system: gps, audio,tire pressure warnings
- Completed isolate systems: gps, fuel injection
- Nothing with a computer chip
- I don't want any kind of car
- Roof mounted death ray

Comment Re:Photo's subject matter is important for humans (Score 1) 61

The thing is that all that stuff is hard to use. You still need skilled people to get good results.

This is still true, but not for long. Erasing objects is easy with photoshop content aware fill. Adding objects will be easy soon:
Rendering Synthetic Objects into Legacy

Comment Photo's subject matter is important for humans (Score 4, Interesting) 61

Look at the high variance images at the top of page 9 of the original article. I finding unsurprising at all the people can't tell if a sand dune was smoother or if erasures occurred on image of pine tree branches against pale blue sky.

One documentary on the development of new currency said portrait sizes were increased because of our ability to notices small variation in faces. I don't have the reference for this, but my personal observations match the claim.

My wife and I are both artists with masters of fine art in painting. For years, bad effects in movies will jump out at us. We will sometime refer to the "cgi cast of thousand" in egregiously offending movies. For some years now my ability to identify cgi inanimate objects has almost disappeared. In modern movies I almost never have a cgi object jump out at me. I notice that the cgi animation of people is similar improving, although glaring problems still appear. I am sure it has both to do with complexity of the physics problems and my own visual capability and nature focus of attention. I except it is few short years until I almost never notice any cgi modifications.

Submission + - Poll idea: If I could only keep one electronic device...

sleepypsycho writes: If I could only keep one electronic devices, I would keep my...
- smart phone
- laptop or tablet
- desktop
- entertainment system: tv, stereo, game console and/or dvr
- camera or video camera
- gps
- drone, 3D printer, vacuum, or other robotic device
- other, please specify
- does my brain count as an electronic device?

Submission + - Poll idea: Size of company

sleepypsycho writes: The organization at which I work is...
  • me, myself and I (includes student and unemployed)
  • under 10 people (includes family caretaker)
  • under 100 people
  • under 1,000 people
  • under 10,000 people
  • above 10,000 people
  • under my parents' living room

Comment Re:No business acumen (Score 1) 368

> pay-per-download site for *their* music

I guess I missed the word "their" and over interpreted. Since the problem she was addressing in the letter was royalty payments to artists in general and not herself, I was thinking of a generalized pay-per-download system. This would be a lot larger project requiring more complexity and vision in order to achieve its goals. This is what I think would be interest. I agree getting music directly from the artist is not a big thing.

Comment Re:No business acumen (Score 1) 368

This is a really interesting idea. I don't expect any single artist to do this as they investment of time and effort requires serious dedication. If artists wanted to be business people then they would not have become artist.

However if you could get maybe half of the top 20 artist to agree that it was in the best interest of the themselves and artists in general, they could pull there music form all the other services and form a new non-profit service (non-profit for the service no the artist). The top artists will drive people to the service. The service would use advertising and or fees and all the money would go to the artists / royalty owners.

Basically this is like a union with some very wealthy members such as the NFL's players union. The union would pay a health salary to president and others for the business aspect. The union could negotiate deals with other services if the membership thought it was in their best interest. It would have some of the drawbacks of such unions but in total it would be a lot better for the artists than current systems, if not so much for people who want to stream free music.

Comment Re:Questions (Score 1) 75

Thanks. That is great info. I am happy about my guess. I may be only an order of magnitude off on the # of nodes and I had 5-7 layers [input, 3-5, output] :)

When I was in college the 100 astrophysics class [rocks in space] taught estimation and actually asked how many trees in Chicago on the final. I thought this was probably one of the most valuable things you could teach liberal art students in a science class. One of my co-worker did very well on his hiring interview by doing a very good estimation of the number of veterinarians in NYC. He googled it when it he got home and was able to send a link that was about 10% from his answer. He was cherry picking, sure, but we were highly impressed. He is one of the most successful hires we ever made.

Comment Re:Questions (Score 1) 75

Here is my best answer. I am not active in the field so the answer is a combination of knowledge, extrapolation and intuition. I think it provides some of the kind of info you are curious about

Typically the first layer of nodes will receive input feature detectors run on the image. For example edge sharpness and orientation calculation. This will be at a range of scales that are small compared to the overall picture.

This first layer will connect and provided weighted values to another layer or two that is also probably spatially restricted in range

You would not actually need to have so many independent low level nodes because you can run pieces of the image be the low level node and then rout the output to the next aggregating layer.

On aspect of deep learning is that you would train input nodes based on the final output [or at least high level nodes] rather than back propagating through all the layers. This improves the results and simplifies the interaction, allowing for more nodes to be implemented due to reduce computing time

I tried to google for some practical values, but did not see anything that offered up number just guidelines. I am now quite curious about the value and will have to spend more than 15 minutes searching. If someone has some practical experience and some typical values, I would certainly be interested in the answer. A will now hazard a complete guess. For each 40x40 pixel square I would imaging roughly a hundred of two feature values going into the first layer of nodes on a one to one bases. I would imagine 3 to 5 intermediately layers that tapered down more minimally over the next 2 layers and then more dramatically as it goes to the final layer. This ends up with a ball park calculation for a 2000x2000 image of 2,500 patches [obviously they are overlapping areas but good enough for the estimation] and a first layer 500,000 nodes x 3 for 5 layers of reduced count to get 1.5 million nodes. I am confident that I am within 4 orders of magnitude with this guess.

Comment Re:Repulsive (Score 3, Informative) 66

In fact there are relationships, and how these reflect to human models of both behavior and biologically have been studied
The long history of these techniques helps the other show the validity of their work because it is commonly known how reliable and variable the behavior.

The experiment is interesting in itself, it show that stimulation of the cells associated with a memory as it forms will affect their behavior. Additionally the effect supports the hypothesis on how the stimulation would affect the behavior.

Of course there are still ethical and moral consideration.. There may in fact be other better ways to investigate the same phenomina or it may be more ethical not to do the research at. However it is not fanciful sadism. It is a serious attempt to extend the understand of optigenetics, memory, behavior and depression

Comment Re:Don't do everything the developer don't like (Score 1) 146

Supporting the team like this is great. Be careful you don't burn out by taking too much on yourself. This a warning about mistakes I have seen from myself and others more than anything indicated in your post. It sounds like you have it pretty well under control, taking it one process at a time.

Some thoughts on unit tests in case they are interesting/helpful for you or someone else.
- Keep a bug count or similar metric posted to show process benefit
- Make it easy to create tests, especial for the first time the coder has to write one
- Introduce it to larger teams who work in each others code
- Explain how it can improve code quality not just test code

What follows is a more conversational and detailed presentation of the points above.
One of the best things to do to support any metric is to track something like # of open bugs during the project. It can really draw attention to the impact of improving the process. When a new project adopts a process it helps everyone to realize the benefit of a process.

I found unit tests was somewhat more challenging to get buy in than code review. I think this because the time it takes do write the test as well as the time until you real feel the benefit. One person who usually works in side projects and not part of team is still to be convinced. With a bigger team working in a more agile manner where they are often working on code started by someone else it is a lot easier to see the benefit.

Setting up the system so that it is as easy as possible to write a new test is a big help. Making the entry barrier small is very helpful for adoption. Relieving just a small amount of process can also make a big difference.

One of the benefits gained in unit tests is that it helps reinforce good code structure; such as using interfaces and creating classes that only perform one function. Without these things code becomes hard to test. Not doing these things become obvious as problems when you go to test and discover it is very difficult. Showing examples of this can help support adoption. At the start of adoption it can be viewed as making you change code for the sake of the test rather than improving the code. So it needs to be communicated properly.

Comment Re:The worst managers (Score 1) 146

I assume the response is saying that looking at the code is not required to be a good manager.

I agree that look at the code is not a key point of evaluation. I agree certainly agree with the parent post, that looking at a few metrics is not a good way to evaluate anyone or anything.

Information I use to evaluate an employee.
Do other employees praise or complain about them? The number one rule is making the team better.
Do they do what is expected? Can I count on them to complete something when asked, to handle small obstacles and let me know if they are not going to succeed in the expected amount of time?
Do they find and resolve problems on their own? Some problems have to be brought to my attention because of either their severity or action needed to resolved them. If an employee never brings things to my attention they are either unconcerned about serious problems or are not working well as a team
We use code review so the developer improve their own code. It does not take long before it is pretty common knowledge if a coder is problematic here.

Comment Re:My best manager (Score 1) 146

I agree. This is something good football coaches talk about. Denis Green put it succinctly and eloquently "I won't treat you all equally, but I will treat you fairly." People are not all motivated the same and are not all in the same circurmstances.

> A newbie or an incompetent *needs* micromanaging
I think you may want to say "mentoring" or "training" so they grow. Of course it also important to manage expectation so the individuals no what is expected and are not surprised there are consequence. Again expectations are different for different people. Each should know what is expected of them personally.

Comment Re:Advice (Score 1) 146

I agree. Great advice. If the poster is following his own advice, it is no surprising the people on his team consider him one of the best managers he/she has ever had. The advice is very specific and practical and can be adopted by anyone.

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