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	<id>https://murray.cds.caltech.edu/index.php?action=history&amp;feed=atom&amp;title=Talk%3ATop_Ten_%28Challenge%29_Problems_in_Control</id>
	<title>Talk:Top Ten (Challenge) Problems in Control - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://murray.cds.caltech.edu/index.php?action=history&amp;feed=atom&amp;title=Talk%3ATop_Ten_%28Challenge%29_Problems_in_Control"/>
	<link rel="alternate" type="text/html" href="https://murray.cds.caltech.edu/index.php?title=Talk:Top_Ten_(Challenge)_Problems_in_Control&amp;action=history"/>
	<updated>2026-09-07T05:49:24Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://murray.cds.caltech.edu/index.php?title=Talk:Top_Ten_(Challenge)_Problems_in_Control&amp;diff=7878&amp;oldid=prev</id>
		<title>Murray at 21:52, 19 August 2008</title>
		<link rel="alternate" type="text/html" href="https://murray.cds.caltech.edu/index.php?title=Talk:Top_Ten_(Challenge)_Problems_in_Control&amp;diff=7878&amp;oldid=prev"/>
		<updated>2008-08-19T21:52:03Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:52, 19 August 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l4&quot;&gt;Line 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Redesign the Feedback Control System of a Bacteria - this challenge got written up as a [[Bacteria Design Challenge|potential example]] for an NSF systems engineering work.  Synthetic biology is making progress on some of the components required to do this, but there is still a long way to go.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Redesign the Feedback Control System of a Bacteria - this challenge got written up as a [[Bacteria Design Challenge|potential example]] for an NSF systems engineering work.  Synthetic biology is making progress on some of the components required to do this, but there is still a long way to go.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Control 101 - [[CDS 101/110a]] is an attempt at this, along with a new textbook entitled [[AM:Main Page|Feedback Systems]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Control 101 - [[CDS 101/110a]] is an attempt at this, along with a new textbook entitled [[AM:Main Page|Feedback Systems]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Packet-Based Control Theory - there is now a pretty strong theory available for handling things like packet loss and time delay in networked control systems.  See, for example, some of the lectures from a recent [[EECI:Main Page|short course]] on this subject.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Packet-Based Control Theory - there is now a pretty strong theory available for handling things like packet loss and time delay in networked control systems.  See, for example, some of the lectures from a recent [[EECI: Main Page|short course]] on this subject.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Write a 100,000+ line program that works correctly on first execution - this one is far from being solved, but interestingly the software that [&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[GC&lt;/del&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Main Page|&lt;/del&gt;Team Caltech&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]&lt;/del&gt;] wrote for the DARPA Urban Challenge was about 200,000 lines long (and definitely could have used some verification)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Write a 100,000+ line program that works correctly on first execution - this one is far from being solved, but interestingly the software that [&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;http&lt;/ins&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;//gc.caltech.edu &lt;/ins&gt;Team Caltech] wrote for the DARPA Urban Challenge was about 200,000 lines long (and definitely could have used some verification)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Murray</name></author>
	</entry>
	<entry>
		<id>https://murray.cds.caltech.edu/index.php?title=Talk:Top_Ten_(Challenge)_Problems_in_Control&amp;diff=7877&amp;oldid=prev</id>
		<title>Murray at 21:50, 19 August 2008</title>
		<link rel="alternate" type="text/html" href="https://murray.cds.caltech.edu/index.php?title=Talk:Top_Ten_(Challenge)_Problems_in_Control&amp;diff=7877&amp;oldid=prev"/>
		<updated>2008-08-19T21:50:52Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:50, 19 August 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Status update, 19 Aug 08 ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Status update, 19 Aug 08 ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;At a ARO strategic planning meeting, I had the opportunity to look back on the list of problems (including copying it to my wiki) and think through were we are on these various problems.  Here are some quick thoughts.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;At a ARO strategic planning meeting, I had the opportunity to look back on the list of problems (including copying it to my wiki) and think through were we are on these various problems.  Here are some quick thoughts&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Redesign the Feedback Control System of a Bacteria - this challenge got written up as a [[Bacteria Design Challenge|potential example]] for an NSF systems engineering work&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; Synthetic biology is making progress on some of the components required to do this, but there is still a long way to go.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Control 101 - [[CDS 101/110a]] is an attempt at this, along with a new textbook entitled [[AM:Main Page|Feedback Systems]].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Packet-Based Control Theory - there is now a pretty strong theory available for handling things like packet loss and time delay in networked control systems.  See, for example, some of the lectures from a recent [[EECI:Main Page|short course]] on this subject.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Write a 100,000+ line program that works correctly on first execution - this one is far from being solved, but interestingly the software that [[GC:Main Page|Team Caltech]] wrote for the DARPA Urban Challenge was about 200,000 lines long (and definitely could have used some verification)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key acs_math_mw_144-murraycds_:diff:1.41:old-7876:rev-7877:php=table --&gt;
&lt;/table&gt;</summary>
		<author><name>Murray</name></author>
	</entry>
	<entry>
		<id>https://murray.cds.caltech.edu/index.php?title=Talk:Top_Ten_(Challenge)_Problems_in_Control&amp;diff=7876&amp;oldid=prev</id>
		<title>Murray: Status update, 19 Aug 08</title>
		<link rel="alternate" type="text/html" href="https://murray.cds.caltech.edu/index.php?title=Talk:Top_Ten_(Challenge)_Problems_in_Control&amp;diff=7876&amp;oldid=prev"/>
		<updated>2008-08-19T17:18:46Z</updated>

		<summary type="html">&lt;p&gt;Status update, 19 Aug 08&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;== Status update, 19 Aug 08 ==&lt;br /&gt;
&lt;br /&gt;
At a ARO strategic planning meeting, I had the opportunity to look back on the list of problems (including copying it to my wiki) and think through were we are on these various problems.  Here are some quick thoughts.&lt;/div&gt;</summary>
		<author><name>Murray</name></author>
	</entry>
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