xl vs ml

[Paola Di Maio]

David and all

so glad to see this work being useful

just occurred to me that HXL is an exchange language, rather than a Markup Language as I am used to

can you help me work out the difference between the two, do they conform to different specifications or its the same type of ML spec with a different naming convention?

is it  a technical, naming or usage difference, 

in which case kindly point to benefits vs drawbacks

or no difference at all?

thank you!!

PDM

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A bit about me

[David Megginson]

Hi Paola. You're right that there's some ambiguity about what slot HXL fits into. In fact, it's both a (very simple) markup language and a humanitarian-specific exchange language. We're not very explicit about it, but the standard consists of two different parts:

HXL tagging conventions is the ML part, describing the syntax rules for creating and interpreting tags and attributes in tabular-style data. These conventions (and the HXL support software like libhxl-python and hxl-proxy) could support any number of tagsets outside of the HXL humanitarian one. For example, you could design hashtags for baseball statistics, political election results, celebrity weddings, or just about anything else, and still take advantage of the basic HXL infrastructure.

HXL hashtag dictionary is the XL part, defining the specific core hashtags and attributes recommended for humanitarian data interoperability.

Happy to hear what you think.

Cheers, David

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[Paola Di Maio]

Thank you David

the reason why I am asking, is because I have started to devise

some sort of new ML language to represent a certain knowledge domain

and for me XML has always been about facilitating data exchange

I was browsing around past work and remembered this project

I do not have experience nor opinions about the fact that Hxm 

is a hybrid, as long as it works

 it would be good to have some use cases or how folks

are using  HXL , so that we can learn from it-

you mean HXL is a de facto standard, in the sense that it is the only humanitarian exchange language in use, or has it been standardized

by some nomination with some institution that accepts it as a standard?

In addition to learn more about what you guys are doing, I hope to draw

inspiration from this project  

Maybe that's the way to go: adopt all the conventional xml bits and add 

other elements as hashtags 

pdm

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