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i am wondering if there is any opensource and freeware solution to extract roads from an image, like google map images?
i think it maybe possible to code something like that with AI solutions, but i dont know where to start
thnx
If you're mainly interested in the results, instead of an algorithm, you may want to check out OpenStreetMaps.
Otherwise, you should focus on computer vision solutions and a framework such as OpenCV in order to process raw imagery and filter out streets based on their features – which is not trivial.
This sounds like it would be a valuable resource to cartographers ranging from 'street directory' publishers to the military.
I'm sure proprietary commercial software exists, but open source and freeware — probably not.
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I'm doing a big machine learning project in Java.
I tried some libraries but they were uncomfortable. Not many algorithms, few examples, unclear function parameters.
So, I wanted to ask if anyone knew a convenient library in Java for machine learning. (In terms of: easy to import, easy to use, lots of samples, etc.)
In addition, I have already read the csv file to a matrix. So if the library uses it, it will be better. Thank you.
Here are a few links
ApacheSAMOA: https://samoa.incubator.apache.org/
Weka: http://www.cs.waikato.ac.nz/ml/weka/
Rapid Miner: https://rapidminer.com/
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I have recently been tasked to working on code that uses Java CUP. Does anybody still use it? I've found a couple small resources on it, but it looks like there isn't much documentation on the main site, Java Cup Website. If there are any mailing-lists or users out there I would like to know. BTW, I can't use the new engine that is being maintained by the people in Munich, I got to stick with version 0.1.
We use the newer one on the Eclipse XPath2 engine (disturbingly called PsychoPath).
CUP gets the job done, but we use the newer one.
Being a small piece of software, it's easier to understand, which makes up for the scarceness of resources.
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I need a tool for generating control flow in java, but not a visual draw, something that I can work with like with path conditions or so.
Anyone ?
To future record, what I´ve found that best suits to my needs is Soot.
http://www.sable.mcgill.ca/soot/
The ASM library can do that, at the JVM-bytecode level. See Method Analysis and Control flow analyses in http://download.forge.objectweb.org/asm/asm4-guide.pdf (page 121).
Atlas is an Eclipse plugin that enables program analysis. It has a querable graph database that includes the control flow graph (as well as data flow and other relationships).
Maybe this is what you were looking for http://www.jboss.org/jbpm
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Here is the deal, in my Java project I have to make a composite document that combines both text and images; So I'm looking for a way to manipulate pictures (rotate, change size, that sort of thing). The API I'm looking for should be clear and easy to learn (preferably with some examples), it should cover the basic transformations I made above - rotate,change size, eventually crop.
If you want some more advanced functionality, ImageJ is a create image library. It's open source and has plenty of examples.
The java2d api let you do this kind of thing. Is it too difficult to learn?
the standard API allows for all your needs.
You can find examples here.
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I'd like to set up a large linear programming model to solve an interesting problem. I would be most comfortable in Java. What tools/libraries are available?
There were several suggestions from an earlier question that I posted:
CPLEX
Dash
OptimJ
COIN-OR
lp_solve
and possibly more...
I used lp_solve with success. It looks like there is a native Java API, but I've only used the text file interface. It supports the semi-standard MPS and LP file formats, which I found more convenient for trying out different solvers (such as glpsol).
Currently, google digs up this Java Linear Programming libs:
http://scpsolver.org/
http://javailp.sourceforge.net/
http://www.joptimizer.com/linearProgramming.html
http://www.win-vector.com/blog/2012/11/yet-another-java-linear-programming-library/
http://commons.apache.org/math/userguide/optimization.html
http://ojalgo.org/