Quantum Bayesian Networks

December 19, 2013

Where the Wild Bayesian Network Things Are

Filed under: Uncategorized — rrtucci @ 5:41 am

In a recent blog post, Judea Pearl tries to answer a question that skeptics of Bayesian Networks often ask: “But where does the graph come from?”. His answer is for adults. In the future, I promise to give an adult sounding answer too. But for now, let me give an answer for ages 3 to 6.

I think the graphs come from an island about a year away by boat. The island isn’t easy to find, but if you look hard enough, with enough imagination, with a subversive spirit, you will certainly find it, and have a wild rumpus with its inhabitants, but only for a while.

For me, the human brain is the mother of all Bayesian Networks, each person is a unique wild Bayesian Network thing. So for me, ultimately, the graphs come from…everywhere, they are all around us, Bayesian Network graphs is people!

Text of Where the Wild Bayesian Network Things Are
by Maurice Sendak

The night Max Judea wore his wolf suit and made mischief of one kind

and another

his mother called him “wild Bayesian Network THING!”
and Max Judea said “I’LL EAT YOU UP!”
so he was sent to bed without eating anything.

That very night in Max’s Judea’s room a forest grew

and grew –

and grew until his ceiling hung with vines
and the walls became the world around

and an ocean tumbled by with a private boat for Max Judea
and he sailed off through night and day

and in and out of weeks
and almost over a year
to where the wild Bayesian Network things are.

And when he came to the place where the wild Bayesian Network things are
they roared their terrible roars and gnashed their terrible teeth

and rolled their terrible eyes vertices and showed their terrible claws edges

till Max Judea said “BE STILL!”
and tamed them with the magic trick

of staring into all their yellow eyes vertices without blinking once
and they were frightened and called him the most wild Bayesian Network thing of all

and made him king of all the wild Bayesian Network things.

“And now,” cried Max Judea, “let the wild Bayesian Network rumpus start!”

“Now stop!” Max Judea said and sent the wild Bayesian Network things off to bed
without their supper. And Max Judea the king of all the wild Bayesian Network things was lonely
and wanted to be where someone loved him best of all.

Then all around from far away across the world
he smelled good things to eat
so he gave up being king of where the wild Bayesian Network things are.

But the wild Bayesian Network things cried, “Oh please don’t go—
we’ll eat you up – we love you so!”
And Max Judea said, “No!”

The wild Bayesian Network things roared their terrible roars and gnashed their terrible teeth
and rolled their terrible eyes vertices and showed their terrible claws edges
but Max Judea stepped into his private boat and waved good-bye

and sailed back over a year
and in and out of weeks
and through a day

and into the night of his very own room
where he found his supper waiting for him

and it was still hot.

where_the_wild1
where_the_wild2

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