technique to enter text using a mobile phone keypad (T9 dictionary-based disambiguation)

[John Machin]

bearophileHUGS at lycos.com wrote:
> John Machin:
> > 2. All responses so far seem to have missed a major point in the
> > research paper quoted by the OP: each word has a *frequency* associated
> > with it. When there are multiple choices (e.g. "43" -> ["he", "if",
> > "id", ...]), the user is presented with the choices in descending
> > frequency order.
>
> I haven't missed it; if you use the instrumeted PAQ compressor
> approach, you gain the frequency information and more :-)
>

I didn't comment on that before because:

(1) I thought it sounded like a tool in search of a problem -- the
problem being to produce a user interface that meets conflicting goals
(few keystrokes and few mistakes and minimal
hurl-the-device-out-of-the-window frustrations); compression of the
dictionary is of course desirable but I wouldn't have thought that that
should have been foremost in the design process.

(2) Googling for instrumen?ted PAQ compress(or|ion) yielded nothing
that seemed relevant -- can you supply a link or two?

Cheers,
John