Monday, March 19, 2012

Gordon's Law

Some years ago, as a soon-to-be-ex-AI guy, I came to a realization that I immodestly named "Gordon's Law": it's easier to program us to act like computers than it is to program computers to act like us.


If Gordon's Law were not so, we would have voice recognition instead of "interactive" voice menus ("press 3 if you've despaired of leaving this menu", etc.).  We would have automatic Root Cause Analysis rather than trouble ticketing systems.  We would have online advertising tailored to our wants and current projects rather than "personalization".


To be sure, there is Watson, and there is Deep Blue, and my wife told me yesterday there's some software competing for crossword puzzle champion of the world.  But in some sense -- and I include Siri  here -- these are parlor tricks.  As Joseph Weizenbaum found out years ago with the software psychotherapist Eliza, there are some clever ideas that simulate humans to humans.  They don't wear well.  There's talk of having Watson do medical diagnosis, but there's also talk of people wanting to throw their iPhones out the window when it turns out Siri really doesn't do a very good job at all of understanding what we want or what we want to know.  And if Watson ends of doing decent medical diagnosis, I'll eat my hat.


Why should Gordon's Law be true?  Aren't our brains "just" meatware?  Isn't everything, as Stephen Wolfram says, a computation?


I don't know, but I do know that we work well together -- information devices and humans -- when we do what we're each good at.  We don't pretend to be machines and they don't pretend to be humans.

Friday, February 17, 2012

The Metadata Problem

I am not a metadata expert.  I have a couple of friends who could run circles around me in terms of depth and breadth of their experience.  But I do have opinions.


I've always thought that the logical person to append metadata -- the person who brings the metadata in -- is also the least likely to person to know which metadata will be of interest.  Downstream, the consumers of data will have their separate -- and diverse -- metadata "agendas", if you will.  The originator doesn't know what those agendas are (and probably can't know, since it changes over time).  And, of course, the consumers of data don't know what metadata apply to a particular dataset without examining it.


In addition, the task of appending metadata is an add-on: it's something extra you have to do.  What incentive does the originator of a dataset have to do this, other than charity?


Tagging systems like delicio.us have solved a part of this problem by a bottom-up system of tagging where metadata are tagged onto datasets retroactively by any user of the system.  These systems don't satisfy metadata zealots because the vocabularies aren't controlled, but, as the Wikipedia article on tagging says, things work out.  the vocabularies are usable and typically converge, or at least don't diverge too badly.  The crowd is, if not wise, at least not clueless.


It would be even better if there weren't a separate tagging operation at all.  In a no-tagging operation, some workflow that the user was going to do anyhow would implicitly add metadata.


Typical use case here: when a user drags an email to a "junk" or "spam" folder, the mail management systems can infer that the email can be tagged as junk or spam.


I struggle a lot to get proper metadata in my personal information cloud, by dragging emails to folders and tagging.  The payoff is that search works pretty well for me in tracking things down when I need to.


Your thoughts?

Monday, February 6, 2012

Connected TV

Reading a bunch about marrying Internet and traditional TV today, trying, among other things, to suss out how the ecosystem is going to develop.

One insight I had today: people will not prefer smart TVs, if they end up preferring them at all, because they've got one fewer box. The history of phones, smartphones, and now tablets shows that people pick their boxes because of functionality, not box count. People cheerfully carried around blackberries and dumb phones together for years, one for email, one for voice. Today people have a phone and a tablet and a laptop, all for slightly different use cases, each picked for excellence of function.

My guess would be people will do the same for TVs. We will cheerfully combine legacy set top box, new box, and maybe even smart TV, if each excels at some purpose we want.

Friday, February 3, 2012

Money is a vector, not a scalar

We were having a discussion about "throwing good money after bad" the other day, and I found myself blurting out "well, after all, money is a vector, not a scalar."

I'm sure you all remember (from your linear algebra class, perhaps) the difference between a vector quantity and a scalar. A scalar quantity has a magnitude while a vector has a magnitude and a direction.

"Good" money and "bad". What are these but an additional dimension for money? In a bad investment the quantity of the money grows while its goodness shrinks; in a good investment they grow together. Additional money in a bad investment grows smoothly in quantity but has a discontinuity as it leaps from bad to good.

There are lots of discussions about money that acknowledge its vector nature. "Dumb" money and "smart". "Patient" money. The "velocity" of money. "Easy" money (large first derivative of money with respect to effort).

Maybe just a dumb metaphor. Your thoughts?

Friday, January 27, 2012

Private Equity Fund Performance

Bronwyn Bailey, who heads Research over at the Private Equity Growth Capital Council, turned me on to a great research paper by Harris, Jenkinson, and Kaplan on private equity performance.  The authors have the mildest of goals: to say what we actually can say about private equity performance.  They then do what all of us should have done -- do some careful time series analyses of data from the few research sources available.


Their results?  "Average buyout fund returns in the U.S. have exceeded those of public markets for most vintages for a long period of time".  And "average venture capital fund returns in the U.S., on the other hand, outperformed public equities in the 1990s, but have underperformed public equities in the 2000s".


Worth a careful read over the weekend, I think.  And, if it's not asking too much, maybe a bit of a counterpoint to the witchunt about private equity fund compensation.

Monday, January 16, 2012

Connected Everything


Connected Everything – Our theme for last year’s Mobile Future Forward was “Connected Universe, Unlimited Opportunities.” It was one of the central themes of this year’s CES (and is likely to be for many more years). From health monitors to Sony Vita, from treadmills to autos, connectivity is driving new features, behavior, and hopefully consumer demand.



This prediction from Chetan Sharma's thoughtful review of CES struck a chord. As the Internet becomes the World Network of choice, replacing closed and proprietary networks with an open multiple-purpose one, the number and kinds of devices hanging off the network proliferate.

Friday, January 13, 2012

Valhalla Partners StorageFest II

We had our StorageFest II on Jan. 10 up in NYC.  Fantastic event.  As Dave Vellante of Wikibon said:




Follow other traffic on the event at #storagefest.



(One of) my big takeaways from the event was: the different levels of the data stack have to talk to one another.  We got some Big Data storage clients talking with storage experts at our event, and the results were: Big Data needs storage that serves various needs, not just the same old file and block workloads.


Interested to see how that works out over time.


Thoughts?