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Take an on-line news service like CNN or
the New York Times. Scan through each
day's stories for all non-stop-words, and
for each keyword compute the fraction of
stories in which it has occured over the last
T days (T being a user-set parameter). Then
create a table of contents of the day's
stories,
listing beside each title their Shannon
information content, approximated as though
each keyword was an independent random
variable. Stories whose keywords have
been very common for the last T days
presumably tell you little that's new, so they
get a low score. List stories in order of
decreasing score, if you like.
Keep separate frequency-databases for
different news-sources you read, or
amalgamate them if they cover similar
topics.
This procedure will over-estimate the
information content. A more subtle algorithm
would induce which words cluster together,
e.g. {"Watergate", "Nixon", "Haldeman",
"plumbers", "18 and 1/2"} or {Lewinsky, Starr,
stain}, and treat those clusters as its
independent variables. The statistical
language processing wallahs already have
such inductive algorithms.
Term weighting widely used for text retrieval
http://www.ftp.cl.c...text-retrieval.html
This is called "term-frequency weighting" and is in common use by the search engines. Much to my disgust, I found that information-theoretic weights don't work nearly as well as some ad-hoc methods. See the paper "Simple, proven approaches to text retrieval." [rmutt, Jan 28 2000, last modified Oct 04 2004]
Etxtreme
http://www.etxtreme.ru
This seems to work with this general principle, but as applied to a huge group of very diverse URLs instead of a TV news program. [monde, Jan 28 2000, last modified Oct 04 2004]
Teefax..ohhh those blocky, limited palette colours...
https://twitter.com...tag/Teefax?src=hash
[not_morrison_rm, Sep 25 2016]
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Isn't this really a high-pass filter? |
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High and low in "X pass filter" refers to the frequencies that are allowed through the filter. |
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What I think egnor correctly observes is that the filter cosma describes prefers drastic, fast change (as in the amplitude of a high-frequency signal) over slow change (as in the amplitude of a low-frequency signal.) |
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The "Etxtreme" link is broken for me. Did the site go away, or is it temporarily down, or is the URL incorrect? |
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These days this would result in a blank tv screen. |
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What's needed is a news site with a user-configurable view. |
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With a regular news site, links on the front page to business, politics, entertainment, arts, science, sport ... below that, more choices and so on. |
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A configuration page could allow a user to select- |
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+ Science
:+ Geology
:: + Earthquakes
:: + Volcanos
:: - Floods
:: - Avalanches
or
+ Sport
: + Ball Sports
:: +Team Sports
::: + Basketball
::: - Football
::: + Hockey
::: - Rugby
:: + Individual
::: + Golf
::: - Tennis
The page(s) would then only display items of interest. |
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Oddly, this doesn't seem to exist anywhere. |
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//Oddly, this doesn't seem to exist anywhere.// But
it used to - Ceefax, Oracle, Prestel. |
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Hmm, somebody is tinkering with a new Ceefax service called Teefax, not having a raspberry pi, or a tv and being in the wrong country, I'll have to take their word for it. See link |
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The answer would seem to be an application that is gven a list of categories and a list of URLs and then searches and collates the results, then displays the results as a web page. |
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// Since when did a president need adult supervision ? // |
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No. 15, James Buchanan, widely regarded as the worst president ever, and that's against some seriously formidable opposition... |
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(And yes, definitely the same lineage as the erstwhile [MB] of halfbakery reknown, and in the same fine aristocratic tradition of "Public service by leadership, usually off the edge of the nearest precipice"). |
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//And why does supervision now sound like a superhero skill ? // |
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Well, would you take the job ? |
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//James Buchanan// She was definitely the black
sheep of the family. |
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How soon should before election day should I start
shorting the market, buying ammunition, and
cornering the market on nitrogen and other
consumables? |
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"Canned food and shotguns ..." |
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Probably best to start right now. Stock up on Mexicans too, there's like to be a shortage ... |
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