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schema-matching's Introduction

Schema Matching

Match schema attributes by value similarity.

Usage

Run ./schema-matching --help to see a usage description.

Examples

See the shell scripts in demo. I suggest that you start with 1-match.sh for something simple. The output will be, in this order,

  1. the norms between each column pair, i. e. a measure of how different they are, between 0 (identical) and 1 (completely different),

  2. the norm of the most closely matching column mapping, and

  3. the most closely matching column mapping, one pair per line.

1. and 2. require at least one level of verbosity (using -v or --verbose).

Pre-requisites

  • Python 3 (tested with v3.6.8)

schema-matching's People

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davidfoerster avatar mariovoelker avatar

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schema-matching's Issues

request more detailed readme document

I'm learning schema-matching currently,and I download your project.But I can understand it very well.Can you write a more detailed document?Thanks!

Excuse me is your email****

Hello, David.
I am a graduate student from China. Recently, I am studying the schema-matching project you submitted on github and interested in the project. I have sent my question to you email.
I am looking forward to your reply sincerely. Thank you

Question about Interval division of int or float data

Hello, David.
I am learning this schema-matching method. In this method, in order to calculate the distance matrix of two columns of data, some calculation of specific values is required, such as ItemLetterAverage, LetterVariationCoefficien, LetterProbablility, ItemAverage, ItemProbability, etc.
When a column data type is int or float, to evaluate the difference between values, it is necessary to divide the data with equal intervals, and how is the number of intervals and steps determined? Can I get more documentation about this code? Looking forward to your reply.

Approach

Hey David - We are looking into using this and wondering if you can give us a small blurb as how how you approached this solution. Does the implementation use a specific form of string similarity to assess schema matches?

Thanks!

How to compare two XSD files

After I import the code, I didnt know where to add my XSD files to be compared?
Kindly add the steps to use the code, or a tutorial if you can
many thanks

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