Thursday, May 14, 2009
Knowns and unknowns
However, those same examples that abound of our creativeness and abilities come from smart handling of unknowns. Some may call this decision making under uncertainty. All sorts of progress was enabled by advances in mathematics, science, engineering, and, of the latter times, computation. One key discipline related to this is risk management.
Too, earned value still is problematic for any large program.
And, it's not unkind at this point to note that the recent economic mess is due to failings of smarties involved with risk management. Supposedly, several of their financial instruments (some of which Buffett called weapons of mass destruction - that was in 2003, yet, he did dabble - still is dabbling, some wonder why) were not as risk free as touted; the consequences thereof were abounding as they grew across the set of the hapless; and, those who perpetrated the fraudulent thinking are still free and getting bonuses.
As an aside, this blogger is not against derivatives. How can the concept, that arose out of calculus and as usurped by the financiers for their shenanigans be bad? Consider, though, a hierarchy based upon Minsky - hedge, speculate, then ponzi (or should I say Madoff?) as apropos to these instruments and the underlying regulation that is now being bantered about.
Anyway, where were we? Despite the growing set of knowns, any who have a thoughtful nature may know that the unknowns didn't diminish as the knowns grew. Of course, thinking along those lines may require some acceptance of the hierarchies that emerged out of Cantor's work, yet, we can also say that the remark attributed to Newton could be used, to boot. It had to do with finding pebbles on a beach (small set of pebbles found so far, as opposed to an endless beach, so to speak). But, the pig after the honey of moolah would most likely trample such insights into the sty's mud.
So, this issue is very important to the subject of this blog and, therefore, will recur. Of note will be a focus on how a phase, of a test program, that is just starting will unfold.
Remarks:
08/04/2012 -- Over five years, we had a lot of side trips. We'll try to focus more. BTW, Rumsfeld has recently had his say.
05/27/2009 -- That we have topsy-turvy needs to be addressed more fully in both an epistemologic and an operational sense.
Modified: 08/04/2012
Thursday, August 2, 2012
Renewal
At the same time, though, some of those who could [have] exploited the
observed success of certain methods by growing the ‘chimera’ way beyond
its rational basis. That is, the methodical approaches from physics (at many
levels) were brought out to build the apparati that run the markets. If you must,
sleight-of-hand keeps the take of some as a perpetual sequence (right there is
part reason for the bad smells) while obfuscating the reality by trickery and
faulty mathematical arguments. Remarks:
08/08/2012 -- We need the effectiveness (unreasonable or not) to be cast in a new light. Curiosity Rover, et al, is an example of how things can go.
08/05/2012 -- Added pointer to updated look at unknowns via 7'oops7. Some editing (periodicals have teams plus an iterative process, yet you'll see typos now and then (more frequently nowadays with computer assist being the vogue) -- several lessons in that, perhaps).
Note: See comment on using another approach, below. Need to tweak it. All the style information that was carried over is troublesome. Oh well. Of course, I know how to filter out and get minimal HTML, but why is it seen as smart (or progressive) to bring in this type of crappy assistance (not any better than it was a few years ago)?
08/04/2012 -- Weakness? Yes, indeed.
08/04/2012 -- This was the first post that was developed in a modern editor and then copied to the blog editor. We'll try that for awhile. Having the more intuitive interface ought to help expositions formulate.
Modified: 08/07/2012
Tuesday, June 16, 2015
Node it all
We will start to lay out the problems and our means for handling. In general, we can think of what we know and do not know. Let's use a simple chart.
- Know what we know - this is the basis of success and goodness
Do not know what we [think that we] know -- all sorts of variations
(operational idiocy, for one)
Know (as in, think that we know) what we do not know - again, lots to discuss
(fools rush in)
Do not know (cannot know?) what we do not know - basically,
the infamous unknown-unknowns
(see 7oops7; to the wise, the largest set - listen up, cosmologists)
Thursday, July 26, 2007
Truth, Things in Themselves
For the purposes of starting small and since 'truth engineering' pertains to the computational, we can put the big Truth aside for a later time and limit the scope (for now) to that which is human created. Modern computing supports applied analytics where we may or may not see a clear demarcation between what is being modeled (thing in itself) and the model. CAE is one example which deals with types of simulation; another is flight simulation. Other examples will be looked at later.
Flight simulation has improved such that a simulator can be used to substantially train a flight crew; too, it can provide feedback about design choices which ties back into CAE, say in the context of a new airplane. Yet, no matter the extent to which a simulator represents a flight, we can know that we have a difference between a real flight in an airplane and an experience in its simulator (which only takes you on a virtual flight).
Consider this, though. If one were blindfolded, could one tell the difference between being in a real good simulator versus being on a plane that is actually flying? There are several variations to this theme that might be interesting to explore.
One concern of truth engineering deals with issues such as this one.
Complicating the situation is that some ‘thing’ may itself embed models that represent other ‘things in themselves’ leading to a recursive dilemma. Again, a plane may have sensors and actuators which require computational support.
Does the combination of things (where ‘in themselves’-ness can be resolved) and models (and we have seen that models can also embed things) lead to requirements for truth engineering?
Much of our comfort in our analytics may be well-founded, yet we ought to keep in mind those issues related to quasi-empiricism and, perhaps, our foundational weakness.
Remarks:
11/07/2009 -- We need to use this concept to explain how funny money leads to the problems as we see now. Yes, a train is leaving the station, we are told. Don't miss it! Oh, yes, train to nowhere for the most. Don't fall for the hype, folks.
07/05/2009 -- Recent comments point to too strong beliefs in the computational. In regard to the flight simulator, we could use it to propose a 'being' test analogous to the Turing test for intelligence. You see, blindfolding would fool the eyes, one could make noises. But, how would one fool the nose and the intuitive sense?
05/18/2009 -- With things kicking up dust again, we'll need to re-address these issues related to truth, being, computation, et al.
01/26/2009 -- The engineering comes about due to truth engine-ness.
11/06/2008 -- Gosh, things fell apart right before the election
08/01/2008 -- It turns out that a good discursive domain for these issues relates to money and what it is, including how its roles are important to our well being.
02/24/2008 -- This post dances around some of the intrinsic issues, for good reasons; yet, the topic must be tackled in order to unfold further the issues related to truth engineering.
01/17/2008 --Given that the unknown unknowns are raising their heads, and that parametrics seem to be a main truth stick, this concept needs to be re-addressed with better examples.
12/30/2007 -- This early post still stands, though it may need an update such as some words dealing with calibration and truth. That we have become dependent upon computers is irreversible; actually, we need to embrace the phenomenon as the younger generation seems to have. There are lots of questions to ask and ponder about how we get these things under control (example was the emergence of wild-west behavior as the web opened frontiers - not unlike the old-gunslinger west of the US's manifest destiny).
A new category of T-issues (big T!!!) will be looked at more in 2008 than we have seen so far.Modified: 05/28/2011
Friday, December 17, 2010
Have you heard?
- -- Firstly, the players are many. We have ex-employees in the video. We have experts, too, such as FAA personnel. We have lawyers. But, too, we have a major player in the military-industrial complex (see Ike's concerns, raised, of late, due to some of his early speech drafts being recently discovered in cabin). On the other side is Al Jazeera which may give some pause. But, People & Power is a nice concept, as opposed to the big stompers (even red-staters ought to understand this).
- -- For each of the players, there will be further categorization that is possible which would allow some insight, hopefully, to motivation and such. Yet, as shown by the plane graveyard scene, all we have is verbal testimony unless some type of physical evidence (obtained at what cost?) is found. So, from a truth engineering framework, we can look at the interminable fluxes in ungrounded spaces versus the underdetermined states in the physical (one impetus for cyber-physical studies).
- -- So, how do we de-construct this thing to find the truth? Well, it will be a multi-dimensional task that will take time and ought to continue to intrigue as time unfolds the details. Thankfully, that the sources are on-line will help. Yet, what type of grunt, ground work might be necessary? As in, does not finding the truth go beyond the cyber and virtual (rhetorical, to some)?
- -- How does this play into the themes of oops (how do we know?) and business (who tells the truth?)? We'll look at that, too.
04/07/2012 -- Flightblogger ends, as least, Jon's watch. Some issues raised five years ago are still apropos. The context may have changed a little, yet, perhaps now is time to re-address the themes.