Categories
Taiwan

Igniting Taipei

A few weeks ago with a couple of friends we started to organize the first Ignite Taipei. There’s still 5 weeks and a bit to go, but it has already been a fun experience. In many ways, starting a community feels very similar to how doing a startup would feel (I imagine). No surprise there, the startups I would want to create would want to have a great community. :)

So far it is mostly about choosing the place, the time, starting to invite people, keeping in touch with them, building involvement by others and keeping those “fans”. It’s shaping up nicely, but there’s a lot more to go, we are not ready yet.

Another connection I found with doing an business: the best way to build up one’s own enthusiasm is to be as closely involved as possible. I keep watching Ignite videos on YouTube and sharing them. Writing a blog about what’s going on. Talking to people about it and see what they are interested in. Since at the actual event I think I will be managing the technical issues, there’s one thing I haven’t thought about before: what kind of talk would I give? How would I use my 5 minutes / 20 slides to have an impact? Unless I know that, I cannot really recruit speakers well, cannot help them effectively and would miss out on the core of the things. Also, it does help to exercise my idea muscles [1].

Ignite talk brainstorming
What _else_ to talk about?

Here’s the copy of the brainstorming I had today while I was waiting for my lunch:

  • 30 day challenge: take different bus route I haven’t taken before
  • 100 uses of measuring time
  • Hungarian for dummies
  • Comparative tea-ology
  • Feynman’s spaghetti-braking experiment
  • “How to measure the high of the lighthouse with a barometer”
  • Camino de Santiago
  • Organizing Ignite
  • Geocaching
  • Version control systems for fun and profit
  • Rejection Therapy
  • Startupbus
  • Everyday physics
  • A very short introduction to <insert author’s name here> (e.g. Palahniuk, Vonnegut, Beckett)
  • Kitchen in a pot: the electric rice cooker
  • Long distance travelers of ancient times
  • 100 uses of a wiki
  • Open-source hardware
  • Movie stars’ movies before they became really famous
  • All those different ways of brewing coffee

These I think fall into two categories: things I know a little about, and things I know too little about but would use Ignite as an excuse to learn more. Actually, since I wrote up this list more ideas keep flowing in and I think I will have to prepare some of these, even without a plan to show them to anyone: why would one need an excuse to do something awesome?

Any more ideas to talk about?

[1] “Idea muscles” come from James Altucher, one of my favorite blogger/writer lately. It is the habit of being creative, or by his word:

Every day I write down ideas. I write down so many ideas that it hurts my head to come up with one more. Then I try to write down five more.

I’m not that good at this just yet. The list above is as long as it is because that’s where my page got full. Not as if there are no 97 other, empty pages in my notebook… Maybe I’m too pain averse, but got to overcome that. I actually long for the feeling of doing as many ideas that it hurts thinking more…

Categories
Computers

Social networking exit strategy

This is the kind of thing I read so many times on Hacker News: someone manages a “page” on Facebook, only to have it disabled/deleted one day, out of the blue. The difference is that this time it was the page I was managing.

A few years back I took over the page for Inkscape, and updated it every now and then. Quite enjoyed it and even a relatively small following (3774 at the last count I had) people were very active. Then this week once when I logged in and wanted to send out an update – I just couldn’t find the page. Disappeared from the search, from the control panel, everywhere. I could only see the page that was created from its Wikipedia article, and there was the Inkscape “group” which is much smaller.

Inkscape
Draw up some good stuff with Inkscape

I was looking around for a long time for a support contact, and there was practically nothing. It’s a hell of a challenge for coming up with Google search keywords because there’s just too much noise for Facebook + support related terms (that’s a pretty bad sign). In the end I go to this form, that supposed to be used to report problems with a page. Too bad half of it I couldn’t fill out. What is my page’s web address? I don’t know, it was “on Facebook”. What happened to it? Have no idea, I haven’t had any notice about it. Attach a screenshot. I wish I could but did I mention that it disappeared? Anyway, after submission I’ve been told that I’ll receive an email and it is crucial to act on it, otherwise the procedure won’t go forward. That’s been 4 days ago, and no email since.

Contingencies

By now I have given up on getting it back, it’s just does not worth the effort. On the other hand, I do have another page, Ignite Taipei which we manage/organize together with a couple of friends. That would hurt much more if that would disappear, especially because there’s not much presence elsewhere on the net just yet.

Strange, but actually this whole issue bothers me much less than it would have about a year ago, even if I got locked into Facebook even more. Maybe I know now better that shit will always hit the fan, whatever you do, just have to be prepared for it.

Sometimes it's time to leave
Please exit in an orderly fashion

So, how about extending the idea of the World Backup Day to social identities? How can I prepare to lose the least in case my pages or even my profile gets blocked/hacked/deleted?

  • The personal information is the most valuable, who are my friends and how to reach them. Should write a script that can run somewhere in the background, backing that info up periodically. At least names and emails. Maybe even import them into GMail contacts right away…
  • Establish links with people outside of Facebook. I already use email instead of Facebook messages whenever I can, now I have to extend that really to everyone.
  • Build a proper site / blog for the pages I’m involved with and make people aware of it. Always have a point of contact outside of FB.
  • …. what else did I forget? (leave me a message in the comments if you have more idea)

Why Facebook?

Do I ever fret that Google might block me? That Tumblr would delete my stuff? That Twitter removes my account? Nope, didn’t even really occur to me, they are “not like that”. On the other hand, the power Facebook has over online identities makes people cringe. Why are they different? I feel it’s because they not at all transparent in their decisions and also quite arbitrary. Too many innocent were punished to go unnoticed, and every decision is final. Unless of course one is so big like Ars Technica who had contacts within the HQ.

I was reading an article lately how Facebook want to manage their growing pains algorithmically: more math instead of more people. To me that means that there will be just more arbitrariness and even less transparency…. I wish if instead they would have more support people and start to clean up the mess instead. But of course, if I’d know how to manage Facebook, I would have invented Facebook. :)

Categories
Programming Taiwan

Taiwanese fuel subsidy and the Global Price API

I might have gone a bit overboard with this. Again. It all started when I was reading how the Taiwanese government is planning to implement a fuel subsidy. It bothered me because:

  1. I’m not a big fan of subsidies, since then people cannot make decisions based on the real cost of things
  2. Subsidy comes out of someone’s pocket anyway, so ultimately everyone does pay for it
  3. Looking at the governing party‘s track record and the nearing elections (<1 year), this is likely to be politically motivated
  4. Fuel is pretty cheap compared to other places already, so it must be already heavily subsidized.

The points 1, 2 and 3 are opinions and generalizations. I had to realize that point 4 I just thrown in there without knowing whether it is really true – I just believed it is. Now here’s a good example for [Citation needed].

XKCD: wikipedia protester
XKCD: Wikipedia protester

Filling in the blanks

Yeah, what do I really know? I lived in Hungary and Britain before, and I remember there fuel was more expensive then in Taiwan. Also, it’s open knowledge that the US is pretty cheap, compared to most of the world, that is… But are there any patterns in the price, and what would I expect Taiwan’s level to be?

I was checking around for a while, fishing for the right keywords for the search (“fuel” / “petrol” / “gas”, depending where one’s from, as a starter). Found a couple of sites but they were mostly looking at price comparisons within a country (like Petrolprices for UK) or within a region (like AMZS for Europe, works weird – no real static link, click the UK flag then “fuel prices” in the menu on the left). After a while, however, I did come across a German organization, Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) which in fact had a study about international fuel prices. Go ahead and check the 2009 version, it is very interesting to see all that data and some analysis as well. Historical trends, relative prices, some case studies too. I would have loved to see more analysis, but maybe next time, when I’ll be in the in a position to commission such research. :)

Anyway, looking at the Taiwanese data in from 2009, diesel is slightly subsidized while gasoline is, which means that they are somewhat – but not too much – below and above the US price, respectively. In the ranking, Taiwan is very much on the cheap end.

While looking around a bit more on their site, they have a Data preview for 2010/2011 as well. The more recent is the data the better. Took a look at that too. Now Taiwan is a bit above of the US price with both types of fuel, but still on the cheap end. All their data was in a picture, though, that’s not very handy… So did a little data entry, resulting in this datafile.

I was also thinking, whether the economy affects the prices, and if does then how? Wikipedia first for GDP/capita for all the countries of the world, but they were taking the data from the International Monetary Fund, so let’s go to the source. I checked out their data export tool and there were quite a few more fields to choose from. I went with GDP per capita, Implied purchasing power parity, Value oil exports, Value of oil imports (these last two are good catch:). The output is here. The bottom of the page has a download link, downloaded it into this file without modifications.

Next, had to write some analysis code for the whole thing as well, converting the data into suitable database, fixing some errors in the primary database’s data formats. So in the end I had a simple little script that does:

  1. Clean up some of the names (some Unicode errors originally), and fixes one: I do want to convert the original “Taiwan Province of China” into “Taiwan”…
  2. Fix formatting errors in the IMF  data: they used number formats of “12,345.00” instead of just “12345.00”
  3. Fill missing values with “-1” so it’s easy to filter out later
  4. Rank countries by fuel price, ignore countries that have missing economic data or missing price data
  5. Combine all this and print out on the console

(Scripts and data are shared in this git repo.)

Taking a look

I was looking around for some useful visualizer – something that can handle this much data better then an ordinary static plot. Fortunately, Highcharts JS seems to just the right thing…

The first plot I wanted to reproduce is the one from GIZ’s Data preview. Let’s see how it works out:

Instructions: “red”/”blue” countries are net oil exporter/importer respectively, hover over any of the lines to see which country it is, can click-and-drag zoom into area…

So yeah, Taiwan is down at 49 out of 161 countries, and just few net-importer (blue) countries ranking higher. Even those are mostly poor ones.

Now the second picture, how do fuel prices compare with GDP/capita – which I naively think to have some connection to economical power:

Instructions: note that the GDP scale is logarithmic, hover and zoom are the same as before.

Might be just my eyes, but it seems to me that there are two lines on this plot if one ignores the net exporter (red) countries for a second. From the middle to the right prices are increasing: the wealthier countries can pay more for the fuel. On the other hand, from the middle to the left prices are increasing again: poorer countries cannot really afford it. The cheapest (nominally) are the middle-to-poor, $1000-5000 GDP/person countries.

Bottom line: Taiwan is there at ~$18000/¢100, and if there are indeed these lines, then Taiwan is waaaay below the wealthy country line. Based on the economy, the price should be closer to ¢150. This suggest to me that the original assessment was correct: Taiwanese fuel is cheap.

Global Price API

All of this data-hunting and conversion and plotting should not be this much of a pain. I have a feeling there’s need and desire for open access for such information and that transparency would help people’s decision making – whether those people are in charge or part of the public (and should be “ultimately in charge”). Of course, I’m not the only one to say this, and I’m not even a very good one making this happen – just check out Hans Rosling’s TED talk.

I was thinking, how to build a globally accessible database of consumer prices? Fuel is a good choice because it’s universally needed and there are not too many kinds, one can compare apples to apples. On the other hand, there could be other items as well. Maybe recruit a few volunteers from a big bunch of countries so periodically they add more info to a database. Or fully crowdsource it, maybe even the item categories as well? Then build an interface that it can be easily queried and used by programmers and non-programmers as well. Or is there any such database already? Pitching version: “Archive.org for global price and other public data”. Not that I have a business model for this… I’m sure I’d prefer the same as SimpleGeo and completely open the data itself, but I know there are people who will still find opportunities – or make some.

Any thoughts on this? One selfish thought I have is that this would be lovely so I never ever again have to manually enter all the names of all the countries of the world. :) But I do believe there’s much more to this project.

Categories
Programming

Language of the Month: Scala

I was thinking what what to write about, but then I realized that is doing this whole blogging thing completely the wrong way. I should be thinking what to do and interesting things to write about will come out of that. It always does.

I was watching the Programming Paradigms lecture series from Stanford. I quite enjoy it, mostly because Jerry Cain seems to be a good lecturer. A quick check confirms that others feel that too. I haven’t finished it yet (24 lectures in to the 27 long series, each ~50 minutes), he talked a lot about C, then Scheme, now about Python. He also mentioned a couple of other languages he suggest for the students to try. That got me thinking: I love languages (human and programming as well) and always looking out to learn more things. Why not do some more exploration in this area – trying out languages that are quite different from each other and see what can I take home from each. I did have similar idea last year, “Language of the Week”, but one week is just too little to get to any practical depth in a language and that idea died. Now, I’m hoping to resurrect it in the form of “Language of the Month”. It is conveniently the beginning of a month so I can just start right now. :) Also, let’s make it round – a 12 language series, one for each month until the same time next year. That should be a challenge. So I made a 12 item list for planning:

Many of these I was planning to check out for a long time and now I have proper motivation. Some of them I got intrigued about while I was checking this humbling list. Note, that “?” are not weird languages, but I keep things open to add more as I get more experience with this (you too can give me recommendation in the comments!:). Also note the absence of some languages, like C and Ruby: those I really should know more, that’s why I won’t do them here, they have enough intrinsic motivation, here I want to try somewhat more off-the-path things.

The simple rule for this series is: every month choose one new language and by the end of the month implement something practical in that language. Something that scratches a real life programming itch. Other than this, all bets are off. See what I can learn.

Now the hard part: which one to start with, since the above list is rather a “set” – ordering is not included. I did roll a dice, but didn’t like the result (like most rolls of dice:), so let’s just choose one: The Language of the Month for May is Scala (because I know absolutely nothing about that, unlike some of the others).

Let the coding begin…

Emacs editor screen, ready to accept source code input
What will this space contain?
Categories
Life Programming

Hacker learning Chinese

I guess when a hacker learns a language it is different from the way “others” do that. I guess this, because I think I’m a hacker, I’m learning a language and it feels different. I see two main factors coming in the picture:

  1. I’m connecting things in my life, so the things I do usually need some motivation or purpose behind them, without which they are abandoned. The activities I keep up the best are the ones that connect multiple different things.
  2. I want to do things as efficiently as possible. Hack the tools, hack the process to make it better. If there are no tools, make some. If no processes, come up with ideas.

Okay, these are pretty vague expressed like this, now let’s give the example that prompted this post: I’m learning Chinese. Living in Taiwan for two and a half years now, so “high time” doesn’t even start to describe it. Finally I got a tutor, and a good one at that, so twice each week I have a good session of chatting and learning. After each of the sessions we have at least 30 or 40 new words and expressions written down. Those would normally be just forgotten, so I take an effort (about another hour or so after the session) to type them into a Google Document, this very one on the picture:

Google Docs Chinese vocabulary
The Google Document that powers my learning (click to enlarge)

Enter the English expression, the Chinese original and the pronunciation in Bopomofo (which I prefer to Pinyin). This last is possible because of Yahoo Chinese-English Dictionary (one service that is generally better than Google’s own Translate, though I frequently need to use both). The other three columns I’ll came in just recently.

At the moment I’m up to 307 expressions, and that’s just not possible to practice from a spreadsheet like that. I remembered, though, checking out a fellow StartupBus participant, Pamela Fox‘s Google Spreadsheet Flash Cards some time ago. It was fun but followed a different logic than me so couldn’t make complete use of it. But then: why not make a new practice system for myself? This goes back to the precious points: 1) connecting programming and languages – in both I’ll learn something new and they’ll reinforce each other’s motivation, 2) use the exact tools that I need even if I have to make them (because it’s possible to do).

Also after having done Who Said That? (that is currently down due to the AWS fail), I was into guessing games: let’s make a vocabulary guessing practice app that uses the above spreadsheet that I have anyways. What format it should be? Well, for the very first test, to see how to interact with Google Docs and such, just made it as a simple, console-based python app, something like this:

Chinese learning console
The console app to practice me Chinese vocabulary (click to enlarge)

Each practice round has 30 questions, randomized, 4 possible solutions, with the pronunciation as hint. Simple, though very ugly in the inside at the moment (here’s the repo, I still need to write a ReadMe). It works and now I know what to look out for in terms of implementation (how to log in, how to get and update data, stuff like that).

The other 3 columns in the above spreadsheet are explained as well: they are keeping score such as the total number of times a word/expression is practiced, the number of good answers and the number of current good-answers-in-a-row. These provide a rough-and-ready way to diagnose and manage the learning process – until I come up with better ways. Anyway, right now I get about 50%-70% good which is more than I expected, but still a lot more room for improvement.

A list of improvements to the program that I’m thinking about:

  • Making it into a site, so I can use my phone on the go to practice. Also, potentially others can use it as well to practice anything based on any spreadsheet with “one side – other side – hint” structure.
  • I’m pretty sure this whole things could be done in a single Javascript powered page. I don’t know enough Javascript to pull it off yet, but I’ve seen that all the components separately, and that would make a very portable and compact solution.
  • Need to figure out some easier setup of the spreadsheet if this is to be used by others later. I cannot rely on them understanding what they way I was thinking. Maybe in-app option to add more fields?
  • I remember reading somewhere that the most effective practice is that I reduce the frequency of checking words that I know well. That’s where the last column comes in: as one has more right answers in a row, one can tast that word/expression fewer times. If there’s a mistake then go back to the original method and test it more until score builds up again. This can potentially be a very complicated algorithm, I got to think of a way that scales well (ie. it is not too bad compared to an ideal method but does not require extensive amount of calculation). Have some ideas, but they need more polish.
  • After watching Salman Khan’s TED talk this year it grabbed me just how much information is there in one’s actions (they do amazing feedback to teachers on how the students study), how much better you can understand why did people what they did if you have all those diagnostic information (ah, the temptation of Big Data:). To apply this idea of extended diagnostics I could have a logging system instead of keeping (a simple) score. From there the system could get: how much you practice, how are you doing / getting better, what are easier or more difficult words for you, what two words you mistake with one another, suggest things to practice more, suggest words from topics that you know well to extend your knowledge… And more (this was just a little brainstorming). I don’t think I’d have time to extend it like that, and ideas are a dime a dozen, but one never knows…
  • Adding more modes of learning not just multiple choice, multiplayer learning, more game mechanics (achievements, pins anyone? :)
  • If there are central datasets instead of self-provided ones, then the system can anticipate what are the difficult parts from other students’ performance before you.

Now, let’s just see how will my Chinese improve during all this hacking, since that’s the main point, isn’t it? :)

New Formosa Restaurant Signature Dishes
Some motivation for learning, loads of Taiwanese food :)

Ps: If you have any language learning tricks, let me know in the comments!