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I am doing a project which involves NLP. I need to transliterate Tamil String to English string(In tanglish form) like "இல்லை" to "illai"..
How can i do that using java ??
Help me with the code sample
As there are only 72 characters in the Tamil block, build a translation table and then build a new string by testing each if character can be translated before adding it to the list.
For example U+0B87 (இ) becomes i
If you are more familiar with Java and/or have a very large amount of material to translate, there are likely a few processing optimizations to speed up the process, but I suspect the above will be the base of a good solution.
If you only have a small amount of material to translate or this is a one-off job, it may make more sense to simply use Google Translate and get the input translation below the input box.
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I want to know if there is any efficient method to Run a math expression from string in java , Having some example input and results of that function.
Starting from simple linear functions : a*x+b .To more complex ones
Or is there any good source i can start reading.
I take your task as: take observed input-output and learn some representation which is able to do that transformation with new inputs.
(Some) Neural Networks can learn an approximation-function (Universal approximation theorem
) (and probably other approaches), but there is something important to remark:
Without assumptions about your function (e.g. smoothness), there can't be an algorithm achieving what you want to do! Without assumptions there are infinite many approximation-functions, which are all equally good on your examples, but behave arbitrarily different on new data!
(I'm also ignoring special-cases as: random-data or cryptographic random-generators where this mapping also can't be learned (the former in theory; the latter at least in practice)
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I've got a database of questions in SQlite that I read them from my java code. My questions are questions of Mathematics and I provide them as a text in the database.
My problem is that in several questions I want to include mathematical symbols and operators that I can include with my keyboard and provide it as a text.
Is there a way to include my math symbols inside the database?
Or I have to do it from my code?
I see two options
1. Unicode
In Sqlite choose text type that stores unicode. In unicode, you have plenty of math symbols https://www.wikiwand.com/en/Mathematical_operators_and_symbols_in_Unicode
If unicode does not contain symbol you need, you are out of luck, and you need some other solution
To store text as unicode, see http://www.sqlite.org/datatype3.html and https://stackoverflow.com/a/19397231/1849837
2. Math language
Store equations in some math language that is able to describe equations. In this solution, in order for your equations to look nice you will need something that translate quation description (pure text) into equation image.
If you ask this question on https://mathematica.stackexchange.com/ I am sure you will be advised component and data format that fit your needs.
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I need to track down a java variable in a java file - which variable it got assigned to, which method it was passed to.
How should I begin with?
Should I use line by line parsing or is there any other method?
It looks like you are asked to build a huge mansion; and you start by asking: "should my shovel to dig the cellar be better round; or more rectangular". Meaning: if you don't understand that parsing a java program requires more than "line by line" reading; then you are doomed to fail.
Anyway, depending on your underlying requirements, there are two possible answers:
As suggested by duffymo, you might want to learn using an IDE which allows you to easily identify "variable usage" within a project; and make modifications via "reflection"
Start using a fully fledged Java parser; like https://code.google.com/p/javaparser/wiki/UsingThisParser
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I want to implement a functionality in java where I can search by both by username or by employee number within a single search bar.
I am looking for a simple solution either at client side or at java side
Thanks in advance
Just perform the first search, if it gives a result use it. If not then do the second search.
If usernames must contain alphabetic characters and employee numbers cannot contain them then you could look at the contents of the string and decide which search to run based on that.
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I have a list of categories like Sports,Game,Religion,Finance,Market Rates,I.T,Health,Adult,Business,B2B, government, politics, education etc..
now I want to categorise a text paragraph into these categories, actually I extract whole text from a particular URL and want to categorize text into my categories, at this time I'm using dbpedia,also I have used many technologies, but unfortunately I'm still not reaching to my aim, can someone help me please...I shall be grateful.
There is an old but very good paper that covers the task of text categorization. It can be very useful for you as an introduction:
Machine Learning in automated Text Categorization, Fabrizio Sebastiani, 2002
http://orb.essex.ac.uk/CE/CE807/Readings/sebastiani02.pdf