Happy trails, Voyager

Here's Voyager 2 looking back at Neptune and its moon Triton, possibly the most poignant of the amazing pictures it returned on its voyage of discovery. Its sister ship, Voyager 1, is now in the interstellar medium. [Image source.]

The issues of National Geographic with the Voyager pictures were probably the most dog-eared of my parents' collection. Back in undergrad, in the early days of the web, I remember realizing, "Hey, JPL has a website? You mean I can see the Voyager pictures whenever I want?!?!?!" Yes, I have always been a huge space nerd.

Voyager 1 is expected to keep transmitting for another ten years or so. Happy trails.

How close is the ISIT venue to the Istanbul protests?

Very likely it will all blow over by next month ... but if you're curious how close the ISIT 2013 venue is to the Istanbul protests in Taksim Square (about the possible development of Gezi Park), here's a quick graphic.

Indefinite hiatus

I may as well admit that the blog is on hiatus for the foreseeable future. I've got plenty of things to write about, but no time. Sabbaticals, they are busy! Expect this situation to continue until at least the fall.

Book on molecular communication

For the last 18 months, I've been working on a book on molecular communication. The final complete draft was just sent off for production. It should be printed later this year.

Many thanks to my excellent co-authors, Tadashi Nakano (Osaka University) and Tokuko Haraguchi (NICT); Tadashi in particular for doing most of the work, and for hosting my trips to Japan to hammer out the manuscript. Also many thanks to our contacts at Cambridge University Press for their help and support.

You can read a chapter here. Comments are welcome. (From: T. Nakano, A. W. Eckford, T. Haraguchi, Molecular Communication, Cambridge University Press.)

Just like the CCRAP party

In light of conference malware attacks, and conference phishing scams, and even the IEEE's crackdown on bad conferences, I'm going to suggest that IEEE SCAM is not the best possible acronym.

On Notation

I've spent the last week (and counting) trying to fix the notation in a long document that I've been writing, off and on, over the last 18 months. Since I wrote in fits and starts, I wasn't generally consistent with the notation, always thinking I could just fix it at the end. So when the end came, the results were predictably disastrous.

But I've had a long time to think/swear about notation, and I made some observations:

(Sorry for the image, it's much easier than trying to put LaTeX into Blogger.)

I used to think that there should be a notation stylebook, one notation to rule them all. Or that I would, once and for all, teach my graduate students the "right" notation. But now I don't think that's possible: there simply aren't enough degrees of freedom in a concise, readable notation to make it also rigorous and universally consistent. And you have to favor readability over universality, or what is a notation for?

Happy new year, happy new information theory blog

Via this month's IT Society newsletter, here's the Princeton-Stanford Information Theory b-log. Sergio Verdu is one of the authors.

I've already learned something useful, namely that I should have stopped using eqnarray years ago.