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The general term for what you are looking for is Monte Carlo simulations. Although I don't have any personal experience with it, there is a Monte Carlo feature in the Pandas library. In addition, I found pyhmc, pyMC and pyMC3 (which looks like the most up to date).


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You could use the http://www.pcre.org/ library. Please cut our problem into smaller pieces the next time. If you current issue is a regex question, then it is unneeded information that you fetch this data with wget. It is easier to focus on your issues if only the relevant information is in the question.


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I would recommend itext7, which provides various features to do with PDF. It also have document and examples for common uses.


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You can use http://tess4j.sourceforge.net/ https://sourceforge.net/projects/javaocr/ I have used tesseract (first option) and found that it is quite accurate (not 100% in my case). I directly used trained data for recognition. You can start with following code. Tesseract tess = new Tesseract(); tess.setDatapath(tessDataPath); //Path to tessdata ...


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if someone is interedsted, i have finally found and chose mxGraph https://github.com/jgraph/mxgraph. it is: pros well documented pros free license pros good customized library for my purposes


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JDeli can read/write WebP format and many others, but it isn't free.


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I guess you can use DataMelt Java program. You can see samples of the outputs here: https://jwork.org/dmelt/code/index.php?art=Plots/3D The nice thing about these 3D plots (functions, data) are interactive, and can be saved to the vector graphics


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For my purpose, Redis' sorted sets seem to be fitting (suggestion by someone on Discord) : https://redis.io/topics/data-types


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Imense Ltd offer a commercial client side Javascript OCR engine. There is a free demo at https://www.imense.co.uk/OCR.html. It will read local image files and has HTML5 camera access if you have a decent webcam. The OCR engine is limited to western script and does not use a language mode so should work on business cards.


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