- From: Dan Brickley <danbri@danbri.org>
- Date: Fri, 20 Feb 2009 18:21:02 +0100
- To: wangxiao@musc.edu
- Cc: Michael Hausenblas <michael.hausenblas@deri.org>, "www-tag@w3.org" <www-tag@w3.org>, "timbl@w3.org" <timbl@w3.org>, Richard Cyganiak <richard@cyganiak.de>
On 20/2/09 17:52, Xiaoshu Wang wrote: > <snip> >> If it is an IR, we know we can preserve it by preserving the 0s and >> 1s, alongside information aiding their interpretation. > The "it" refers to the IR or its representation? I think it should be > the latter because we can digital preserve something's state encoded in > bits but not the thing itself. This is, what I think, one of the culprit > of IR-definition, to encourage the practice of psychological > identification of representation with resource as I have discussed in my > manuscript[1]. Yes, I should have been clearer. My idea was that an IR itself, is something that can be fully serialized. On that story, a data file on my computer's USB hard drive can be an IR, while a thermometer attached to its USB port wouldn't be, although both could have HTTP representations. I forgot to emphasise that an important distinction is that many/most of the serializations will be partial and lossy. A useful piece of metadata would be to know which (if any) of the representations are adequate for reconstructing the mysterious and hidden original. > Philosophers are often criticized of hypostasizing or reifying things, > that is, to create something for the purpose of one's theory. This is > exactly what IR is doing. Nevertheless, we can follow WVO Quine's > criteria. That is: hypostasis is O.K. as long as there is an ontological > commitment. If TAG intends to define IR, define it in an ontology such > as in RDF. At least in this way, people can derive some conclusion about > it, other than an arbitrary term. +1 If we must have a concept of IR, let's engineer a useful one, ie. choose definitions that correspond to the most practical and useful distinctions we can think of (hence the backups/archival suggestion above). I don't see the world as falling into two giant and obvious natural kinds - IRs and non IRs. Consequently, any such distinction is one we must very carefully invent, since there are various similar-but-different distinctions we might make. To date, much of the IR discussion has rested on appeals to obviousness... cheers, Dan > [1]. http://dfdf.inesc-id.pt/misc/man/http.html > > Xiaoshu >
Received on Friday, 20 February 2009 17:21:43 UTC