16 Jun 2010
@ 10:45 am
Permalink

A General Theory of Productivity »

There’s a difference between being effective and being efficient, as highlighted by most productivity systems. Basically, here’s the difference:

Effectiveness: completing tasks related to meaningful goals.
Efficiency: Completing tasks in a specified amount of time.

The model of productivity that I’m working with is based off effectiveness, not efficiency. We can complete any number of tasks in a given amount of time, pat ourselves on the back, and not have advanced a single meaningful goal. While it may seem that we should be proud of the feat we’ve just accomplished, the reality is that we have moved backward rather than forward. Time is finite, and every minute spent on tasks that are not related to meaningful goals puts us further behind.


15 Jun 2010
@ 3:08 pm
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A tale of two calves — one calf was fed on raw milk, the other on pasteurized »

The alertness in the two calves was a major difference: the pasteurized calf seemed very uninterested with a clear lack of movement.

After nearly 5 months we could see that the pasteurized calf would have had difficulty to survive without medication and supplements.

Huh. I’m allergic to dairy and don’t really eat it anyway, but I’m not sure what to make of what this implies about any food that’s been heated/zapped/irradiated. Perhaps it means nothing when it comes to normal human circumstance, but it doesn’t paint the nicest picture.


15 Jun 2010
@ 10:25 am
Permalink

Why we travel »

So travel, at heart, is just a quick way to keeping our minds mobile and awake. As Santayana, the heir to Emerson and Thoreau with whom I began, wrote, “There is wisdom in turning as often as possible from the familiar to the unfamiliar; it keeps the mind nimble; it kills prejudice, and it fosters humor.” Romantic poets inaugurated an era of travel because they were the great apostles of open eyes. Buddhist monks are often vagabonds, in part because they believe in wakefulness. And if travel is like love, it is, in the end, mostly because it’s a heightened state of awareness, in which we are mindful, receptive, undimmed by familiarity and ready to be transformed. That is why the best trips, like the best love affairs, never really end.


14 Jun 2010
@ 10:36 am
Permalink

Structured Procrastination »

Procrastinators seldom do absolutely nothing; they do marginally useful things, like gardening or sharpening pencils or making a diagram of how they will reorganize their files when they get around to it. Why does the procrastinator do these things? Because they are a way of not doing something more important. If all the procrastinator had left to do was to sharpen some pencils, no force on earth could get him do it. However, the procrastinator can be motivated to do difficult, timely and important tasks, as long as these tasks are a way of not doing something more important.

I think this man just found my fundamental operating principle. Wow.


13 Jun 2010
@ 10:05 am
Permalink

College and the Art of Life »

  1. Become an expert in something
  2. Branch out
  3. Find a community
  4. Find a mentor
  5. Collaborate
  6. Take risks, be experimental, challenge yourself
  7. Remain open to opportunities
  8. Maintain balance so you won’t burn out
  9. Make your own path ( “Follow your own bliss”)
  10. Keep a beginner’s mind

Good notes for more than just entering college. Possibly the first thing you should remind yourself of each morning:

You are starting anew.


12 Jun 2010
@ 10:25 am
Permalink

Optimal Daily Experience »

Everyone knows about RDAs (Recommended Daily Allowances) of various nutrients. In a speech to new University of Washington students, David Salesin, a computer scientist, advised them to “maintain balance” by getting certain experiences daily:

  • something intellectual (not so hard in college);
  • something physical (like running, biking, a team sport);
  • something creative (like music, art, or writing); and
  • something social (like lunch with a friend).

    We need certain experiences to be healthy just as we need certain nutrients.


11 Jun 2010
@ 10:51 am
Permalink

10 Days in a Carry-On »

Heather Poole, a flight attendant from Los Angeles, demonstrated how to pack enough for a 10-day trip into a single standard carry-on.

Common knowledge for anyone that’s travelled a lot, but if you aren’t familiar, it’s pretty great stuff.


10 Jun 2010
@ 10:22 am
Permalink

How (not to) write a paper

Recently, one of the professors at UBC gave a talk on what to (and not to) do when writing a research paper. A lot of good points were raised concerning who is reading your paper, what they want to know, and how best to make your paper best fill those needs.

There’s a number of technical-/academic- specific writing points, but much applies in general. Know your audience, give them what they want. The majority can be summed up by the last point of Kurt Vonnegut’s How to Write With Style:

PITY THE READERS

They have to identify thousands of little marks on paper, and make sense of them immediately. They have to read, an art so difficult that most people don’t really master it even after having studied it all through grade school and high school — twelve long years.

So this discussion must finally acknowledge that our stylistic options as writers are neither numerous nor glamorous, since our readers are bound to be such imperfect artists. Our audience requires us to be sympathetic and patient readers, ever willing to simplify and clarify — whereas we would rather soar high above the crowd, singing like nightingales.

My somewhat erratic notes of the talk follow:


who are you writing a paper for?

  • supervisor:
    show them your hard work, knows everything
    writeup / project report
  • other researchers:
    give something to the research community at large
    list facts + practical details
    no need for motivation / justification
  • reviewers:
    how is an opinion of a paper formed?
    motivation / results come before algorithm

why are you telling the story chronologically?
that’s not the order that the reader cares about the information you present

What not to do: Guess my contributions game

reader will understand contribution from description

be explicit, consider carefully
often different from original goals

have a short “take home message” — repeat

motivation and contribution at every level — heirarchical

What not to do: I am so unique

Ignore previous work
Similar problems or solutions

Enumeration
“X did Y” not enough

Different not enough

  • Must say why previous work doesn’t solve your problem
  • What limitation of theirs do you fix?

What not to do: Trust me

  • If I say my method works / is better, reviewers will believe me
  • Algorithm is enough to convince people it works

  • Results - and convincing ones
    What are the main points I wish to convey?

  • Comparison — ideally by example
    If not, need to work that much harder

Why did I include this example?
Every example should have a story.

What not to do: What had I done this summer?

We did this, we did that, we did that other thing

  • How allowed only after what and why
  • Motivate every choice you make
    • Compare alternatives
    • Cite/contrast sources
  • Highlight cool ideas
    • Can this be applied elsewhere?

What not to do: Deadly detail dump

You spent 3 months optimizing this part of the code

  • The world needs to know about it!

Prioritize ideas and focus on the major ones

  • Motivation: why should I care
  • Overview: what did you do
  • Details: how did you do it

What not to do: Hiding bad writing - Jargon attack

Notations, notations, notations

  • Use every letter of Greek alphabet
  • Change notations throughout the paper
  • Unique notation system (x function and f value)

Ab(use) pseudo-code

Invent new terminology

  • Bonus points 1: re-invent terminology
  • Bonus points 2: use acronym

Use plain English
Avoid buzzwords

What not to do: Oversell

Insult previous work

  • “We do not show the pitiful results of our competitors”

Make unproven claims

  • “Our new method is proved to achieve dramatic speedup compared to old method”
  • Reality: on only one example we showe it is 1% faster

It is about you not “them”

  • Use “augment,” “improve,” compare results
  • Have a short list of demonstrated claims

What to do: Paper’s message

  • State contribution
    • Usually combination of problem and solution
    • Keep it compact but clear
  • Key idea - take home message
    • What is the major feature of my solution
  • Convincing results
    • With explanation

What is the elevator pitch for your paper? Consider actually giving a talk on it before you write to clarify you ideas

What to do: define your contribution

  • Often not obvious
  • Frequently diverges from original goals
  • Introduce / define problem
    • Why is it important?
  • Why is my solution good?
    • Why better than others?
    • What can we do that wasn’t possible before?
    • How can we do something better than before?
    • What do we know that was unknown/unclear before?

What to do: contribution determines everything

  • From high-level message to which details to include
  • State explicitly and clearly in introduction
    • Don’t hope that the reviewer or reader will fill in for you
    • Goal is clarity, not overselling

Paper parts: title + abstract

  • Determine who will review/read
    • Think which community you want to review this
  • Ideal title: self-explanatory + catchy
  • Abstract: contributions go here
  • Keywords/Categories - again imports reviewer community
    • Think well who you want to target

Consider choosing your bibliographic citations to guide the choosing potential reviewer process.

Paper parts: intro

  • Most important section of your paper
    • Determines >50% of reviewer opinion
  • Motivation + overview
    • Sometimes include previous work (or part of)
  • Motivation = problem + contribution
  • Overview
    • High-level view of the technique
    • Key algorithmic contributions
    • Insights
    • NOT a table of contents

Figures

  • Figures + captions = paper summary
    • First thing reviewers/readers look at
    • Self-explanatory (with caption help)
    • Convey main points
  • AESTHETICS MATTER
  • Main tool for judging your method
    • Examples of what?
    • If you want reviewers to notice something highlight it!
  • Rendering critical
    • View, lighting, texture, resolution, …

Other references


09 Jun 2010
@ 10:52 am
Permalink


  “Bruce had me up to three miles a day, really at a good pace. We’d run the three miles in twenty-one or twenty-two minutes. Just under eight minutes a mile [Note: when running on his own in 1968, Lee would get his time down to six-and-a half minutes per mile]. So this morning he said to me “We’re going to go five.” I said, “Bruce, I can’t go five. I’m a helluva lot older than you are, and I can’t do five.” He said, “When we get to three, we’ll shift gears and it’s only two more and you’ll do it.” I said “Okay, hell, I’ll go for it.” So we get to three, we go into the fourth mile and I’m okay for three or four minutes, and then I really begin to give out. I’m tired, my heart’s pounding, I can’t go any more and so I say to him, “Bruce if I run any more,” — and we’re still running — “if I run any more I’m liable to have a heart attack and die.” He said, “Then die.” It made me so mad that I went the full five miles. Afterward I went to the shower and then I wanted to talk to him about it. I said, you know, “Why did you say that?” He said, “Because you might as well be dead. Seriously, if you always put limits on what you can do, physical or anything else, it’ll spread over into the rest of your life. It’ll spread into your work, into your morality, into your entire being. There are no limits. There are plateaus, but you must not stay there, you must go beyond them. If it kills you, it kills you. A man must constantly exceed his level.”


— From The Art of Expressing the Human Body

“Bruce had me up to three miles a day, really at a good pace. We’d run the three miles in twenty-one or twenty-two minutes. Just under eight minutes a mile [Note: when running on his own in 1968, Lee would get his time down to six-and-a half minutes per mile]. So this morning he said to me “We’re going to go five.” I said, “Bruce, I can’t go five. I’m a helluva lot older than you are, and I can’t do five.” He said, “When we get to three, we’ll shift gears and it’s only two more and you’ll do it.” I said “Okay, hell, I’ll go for it.” So we get to three, we go into the fourth mile and I’m okay for three or four minutes, and then I really begin to give out. I’m tired, my heart’s pounding, I can’t go any more and so I say to him, “Bruce if I run any more,” — and we’re still running — “if I run any more I’m liable to have a heart attack and die.” He said, “Then die.” It made me so mad that I went the full five miles. Afterward I went to the shower and then I wanted to talk to him about it. I said, you know, “Why did you say that?” He said, “Because you might as well be dead. Seriously, if you always put limits on what you can do, physical or anything else, it’ll spread over into the rest of your life. It’ll spread into your work, into your morality, into your entire being. There are no limits. There are plateaus, but you must not stay there, you must go beyond them. If it kills you, it kills you. A man must constantly exceed his level.

— From The Art of Expressing the Human Body


09 Jun 2010
@ 12:46 am
Permalink

How to Enjoy Solitude »

Whosoever is delighted in solitude is either a wild beast, or a god.

— Francis Bacon


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