Well, I agree that "loss of information" can sound drastic, but I was just repeating John's words.<br><br>Perhaps less scary is just to say that case mapping (whether upper, lower, or folding) is not a reversible transformation: "McDonald", once transformed to "MCDONALD" or "mcdonald" cannot be restored without additional information. In that respect, it is similar to width transformations or others under discussion here, except that as I pointed out, it typically loses <i>more</i> semantic information than the others do.<br>
<br clear="all">Mark<br>
<br><br><div class="gmail_quote">On Tue, Jun 30, 2009 at 18:36, Elisabeth Blanconil <span dir="ltr"><<a href="mailto:eblanconil@gmail.com">eblanconil@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="gmail_quote">2009/6/30 "Martin J. Dürst" <span dir="ltr"><<a href="mailto:duerst@it.aoyama.ac.jp" target="_blank">duerst@it.aoyama.ac.jp</a>></span><div class="im"><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
A case mapping is also a 'loss of information', but one that people clearly
want.</div></blockquote></div><div><br>Could we not phrase this differently ? Case mapping may be considered only if it does not represent a loss of information. Otherwise should we not name it "case and entropy mapping" to explain users where entropy occurs.<br>
<br>Elisabeth Blanconil<br><br><br><br><br> <br></div></div><br>
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