I believe that some do. The resources that will be of the greatest utility in this line of questioning will be those standards to which Canada has already agreed.
For example, Canada is a party to the Convention on Biological Diversity, which has, I believe, some definitions around what is globally considered to be indigenous knowledge. We can also, perhaps, look to some of the existing legislation in Canada to look for those definitions.
However, I do not think it's a good use of time for the committee to try to come up with a definition, which, to be quite frank, has been challenging the global community for decades, for the simple reason that it's incredibly difficult to come up with a pithy definition for knowledge systems representing over 470 million people globally.