{"id":2036,"date":"2022-08-02T18:36:39","date_gmt":"2022-08-02T06:36:39","guid":{"rendered":"https:\/\/bestir.red\/?page_id=2036"},"modified":"2022-08-02T22:05:21","modified_gmt":"2022-08-02T10:05:21","slug":"237-231-independent-study-week-2","status":"publish","type":"page","link":"https:\/\/bestir.red\/?page_id=2036","title":{"rendered":"237.231 Independent Study Week #2"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Topic: Information<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">This week&#8217;s reading<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Here Comes Everybody by Clay Shirky (2008)<br>Read the Intro and Chapter 1. Go deeper if inspired.<\/li><li>The Filter Bubble Intro and Chapter 2 by Eli Pariser (2010)<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Here Comes Everybody<\/h3>\n\n\n\n<p>Interesting story of how the power of the early social networks got a stolen phone returned to its rightful order, while breaching what in today&#8217;s world would be lots of privacy regulations&#8230;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The Filter Bubble<\/h3>\n\n\n\n<p>Filter bubbles. Best avoided. If you can.<\/p>\n\n\n\n<p>There are reasons why a lot of IT people don&#8217;t use social media &#8211; and get upset when their kids do &#8211; and it&#8217;s because they don&#8217;t want to become the free product.<\/p>\n\n\n\n<p>A very long time ago, like last century or something, I worked for an online store. Online stores, even back then, tried to figure out people&#8217;s shopping habits so they could sell them more stuff. The shopping habits of the people who used our store were mashed together and various inferences made. A simplistic example of this inference might be, if somebody buys product A and product B, then maybe other people who buy product A might also like to buy Product B, and so on. This inference and matching job ran overnight &#8211; all night &#8211; on literally the most powerful computer that the online store could afford, a Sun E10000, which looked like some kind of giant wardrobe with a Dr Who flavour, and apparently cost a few hundred thousand bucks:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"609\" src=\"https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/sun_e10000.jpeg\" alt=\"\" class=\"wp-image-2039\" srcset=\"https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/sun_e10000.jpeg 450w, https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/sun_e10000-222x300.jpeg 222w, https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/sun_e10000-18x24.jpeg 18w, https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/sun_e10000-27x36.jpeg 27w, https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/sun_e10000-35x48.jpeg 35w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><figcaption>Sun Enterprise 10000 \/ E10K \/ Starfire<\/figcaption><\/figure>\n\n\n\n<p>These days, we&#8217;d probably just feed the data to a Machine Learning algorithm in the Cloud and let it loose.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Information Representation<\/h2>\n\n\n\n<p>The challenge is to bring an example of the\u00a0<strong>same\u00a0<\/strong>\u2018information\u2019 that is represented in different ways.<\/p>\n\n\n\n<p>An example is music!<\/p>\n\n\n\n<p>Notation<\/p>\n\n\n\n<p>Here&#8217;s some standard musical notation:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"199\" height=\"167\" src=\"https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/Midi-example-1.jpeg\" alt=\"\" class=\"wp-image-2044\" srcset=\"https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/Midi-example-1.jpeg 199w, https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/Midi-example-1-24x20.jpeg 24w, https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/Midi-example-1-36x30.jpeg 36w, https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/Midi-example-1-48x40.jpeg 48w\" sizes=\"auto, (max-width: 199px) 100vw, 199px\" \/><figcaption><em>MIDI Tutorial for Programmers<\/em>. http:\/\/www.music-software-development.com\/midi-tutorial.html. Accessed 2 Aug. 2022.<\/figcaption><\/figure>\n\n\n\n<p>Here&#8217;s the same music in MIDI notation<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">t=0 : 0x90 - 0x40 - 0x40 (Start of E3 note, pitch = 64)\nt=0 : 0x90 - 0x43 - 0x40 (Start of G3 note, pitch= 67)\nt=1 : 0x80 - 0x43 - 0x00 (End of G3 note, pitch=67)\nt=1 : 0x90 - 0x45 - 0x40 (Start of A3 note, pitch=69)\nt=2 : 0x80 - 0x45 - 0x00 (End of A3 note, pitch=69)\nt=2 : 0x80 - 0x40 - 0x00 (End of E3 note, pitch=64)\nt=2 : 0x90 - 0x3C - 0x40 (Start of C3 note, pitch = 60)\nt=2 : 0x90 - 0x47 - 0x40 (Start of B3 note, pitch= 71)\nt=3 : 0x80 - 0x47 - 0x00 (End of B3 note, pitch= 71)\nt=3 : 0x90 - 0x48 - 0x40 (Start of C4 note, pitch= 72)\nt=4 : 0x80 - 0x48 - 0x00 (End of C4 note, pitch= 72)\nt=4 : 0x80 - 0x3C - 0x40 (End of C3 note, pitch = 60)<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">What&#8217;s MIDI?<\/h4>\n\n\n\n<p>MIDI is an acronym for Musical Instrument Digital Interface, and is a hardware and software specification that enables computers and music synthesizers to communicate with each other. Fundamentally, it&#8217;s a text based form for describing music so that an electronic musical instrument can output it as audio.<\/p>\n\n\n\n<p>Finally, we have the music itself &#8211; an audio representation of the information above.<\/p>\n\n\n\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/bestir.red\/wp-content\/uploads\/2022\/08\/Midi-recording.mp3\"><\/audio><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Topic: Information This week&#8217;s reading Here Comes Everybody by Clay Shirky (2008)Read the Intro and Chapter 1. Go deeper if inspired. The Filter Bubble Intro and Chapter 2 by Eli Pariser (2010) Here Comes Everybody Interesting story of how the power of the early social networks got a stolen phone returned to its rightful order, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1895,"menu_order":22,"comment_status":"closed","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"footnotes":""},"class_list":["post-2036","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/bestir.red\/index.php?rest_route=\/wp\/v2\/pages\/2036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bestir.red\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bestir.red\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bestir.red\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bestir.red\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2036"}],"version-history":[{"count":9,"href":"https:\/\/bestir.red\/index.php?rest_route=\/wp\/v2\/pages\/2036\/revisions"}],"predecessor-version":[{"id":2048,"href":"https:\/\/bestir.red\/index.php?rest_route=\/wp\/v2\/pages\/2036\/revisions\/2048"}],"up":[{"embeddable":true,"href":"https:\/\/bestir.red\/index.php?rest_route=\/wp\/v2\/pages\/1895"}],"wp:attachment":[{"href":"https:\/\/bestir.red\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}