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	<title>P. S.: Post Scriptum &#187; Clay Shirky</title>
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	<link>http://blog.pietrosperoni.it</link>
	<description>Pietro Speroni di Fenizio's web log</description>
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		<title>Tagclouds and cultural changes</title>
		<link>http://blog.pietrosperoni.it/2005/05/28/tagclouds-and-cultural-changes/</link>
		<comments>http://blog.pietrosperoni.it/2005/05/28/tagclouds-and-cultural-changes/#comments</comments>
		<pubDate>Sat, 28 May 2005 19:55:09 +0000</pubDate>
		<dc:creator>Pietro</dc:creator>
				<category><![CDATA[alive]]></category>
		<category><![CDATA[digest]]></category>
		<category><![CDATA[publishable]]></category>
		<category><![CDATA[root]]></category>
		<category><![CDATA[Clay Shirky]]></category>
		<category><![CDATA[Cloudalicious]]></category>
		<category><![CDATA[Contributions]]></category>
		<category><![CDATA[culture]]></category>
		<category><![CDATA[folksonomy]]></category>
		<category><![CDATA[powerlaw]]></category>
		<category><![CDATA[review]]></category>
		<category><![CDATA[tag]]></category>
		<category><![CDATA[tagclouds]]></category>
		<category><![CDATA[tagweight]]></category>
		<category><![CDATA[visualization]]></category>

		<guid isPermaLink="false">http://blog.pietrosperoni.it/2005/05/28/tagclouds-and-cultural-changes/</guid>
		<description><![CDATA[In the previous post I discussed how we can measure the relative importance of tags in a post, by calculating their weight, as

weight of tag t= (number of people using t)/(total number of people)

I also said that:
Not only we could study a culture by studying the differences in the power law approximated by the tag [...]


Related posts:<ol><li><a href='http://blog.pietrosperoni.it/2009/05/26/how-twitter-google-wolframalpha/' rel='bookmark' title='Permanent Link: How Twitter, Google, Wolfram|Alpha and WIkipedia are not competing at all'>How Twitter, Google, Wolfram|Alpha and WIkipedia are not competing at all</a> <small>It seems to me that Twitter, Google, and Wolfram|Alpha, are really not competing at all, but are instead providing complementary services. I would go farther by adding wikipedia (and blogs?), and suggest that the 4 services really represent the digestive process of our information society. From the first Churning to the Backbone Wolfram|Alpha represents the deeper [...]...</small></li><li><a href='http://blog.pietrosperoni.it/2009/12/17/cop1/' rel='bookmark' title='Permanent Link: COP15 Needs an e-Government System'>COP15 Needs an e-Government System</a> <small>This morning I received a mail from Copenhagen. It was very moving, and describing a situation of chaos, strong commitment, and braveness. It told the story of people fighting with non violence, and shouting that they want change. And I am afraid all this is useless. I feel once again what I felt looking at Iran [...]...</small></li></ol>]]></description>
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		<slash:comments>21</slash:comments>
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		<title>On Tag Clouds, Metric, Tag Sets and Power Laws</title>
		<link>http://blog.pietrosperoni.it/2005/05/25/tag-clouds-metric/</link>
		<comments>http://blog.pietrosperoni.it/2005/05/25/tag-clouds-metric/#comments</comments>
		<pubDate>Wed, 25 May 2005 18:52:59 +0000</pubDate>
		<dc:creator>Pietro</dc:creator>
				<category><![CDATA[alive]]></category>
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		<category><![CDATA[Clay Shirky]]></category>
		<category><![CDATA[contribution]]></category>
		<category><![CDATA[Contributions]]></category>
		<category><![CDATA[del.icio.us]]></category>
		<category><![CDATA[Flickr]]></category>
		<category><![CDATA[folksonomy]]></category>
		<category><![CDATA[longtail]]></category>
		<category><![CDATA[metric]]></category>
		<category><![CDATA[powerlaw]]></category>
		<category><![CDATA[tagcloud]]></category>
		<category><![CDATA[tagclouds]]></category>
		<category><![CDATA[tags]]></category>
		<category><![CDATA[Tagsurf]]></category>
		<category><![CDATA[tip]]></category>

		<guid isPermaLink="false">http://blog.pietrosperoni.it/2005/05/24/atg-clouds-vs-tag-sets/</guid>
		<description><![CDATA[Note:  This entry is connected also to a mindmap. Some people were having problems in opening the page because of that. As such the mindmap has been stored in a separate page, and can be viewed from here.
Introduction
As correctly pointed out by Jeffrey Zeldman tag clouds are becoming more and more popular. Yet I [...]


Related posts:<ol><li><a href='http://blog.pietrosperoni.it/2009/12/17/cop1/' rel='bookmark' title='Permanent Link: COP15 Needs an e-Government System'>COP15 Needs an e-Government System</a> <small>This morning I received a mail from Copenhagen. It was very moving, and describing a situation of chaos, strong commitment, and braveness. It told the story of people fighting with non violence, and shouting that they want change. And I am afraid all this is useless. I feel once again what I felt looking at Iran [...]...</small></li></ol>]]></description>
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		<slash:comments>30</slash:comments>
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		<item>
		<title>On Artificial Scarcity</title>
		<link>http://blog.pietrosperoni.it/2005/04/08/on-artificial-scarcity/</link>
		<comments>http://blog.pietrosperoni.it/2005/04/08/on-artificial-scarcity/#comments</comments>
		<pubDate>Fri, 08 Apr 2005 11:31:10 +0000</pubDate>
		<dc:creator>Pietro</dc:creator>
				<category><![CDATA[alive]]></category>
		<category><![CDATA[root]]></category>
		<category><![CDATA[activism]]></category>
		<category><![CDATA[artificial]]></category>
		<category><![CDATA[artificial scarcity]]></category>
		<category><![CDATA[Clay Shirky]]></category>
		<category><![CDATA[copyfight]]></category>
		<category><![CDATA[copyright]]></category>
		<category><![CDATA[economy]]></category>
		<category><![CDATA[politics]]></category>
		<category><![CDATA[scarcity]]></category>

		<guid isPermaLink="false">http://blog.pietrosperoni.it/2005/04/08/on-artificial-scarcity/</guid>
		<description><![CDATA[Some time ago I posted about how artificial scarcity applied to travellers. Today I read about Clay Shirky who has a hard time in copying his own material, of which he is copyholder, because modern tools have been adjusted not to make this copy feasible&#8230; to protect copyright.
His comment was:
This is because copyright laws do [...]


No related posts.]]></description>
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