Recent submissions

Comment · 7 years ago
FWIW, wechat's messaging server is in erlang. In terms of scale, it's probably bigger than whatsapp.
Comment · 10 years ago
I bought the autonomous desk from kickstarter for $500 (basic model): https://www.kickstarter.com/projects/403524037/autonomous-de..., so far quite happy with it. Really stable, and the table top is of good quality. I can see the author's point where the motor is not necessary but when it's cheap enough (at the low end of the $500-$3000 price range), it's certainly a nice to have feature.

Wobbly desk really bugs me and I would rather have a fixed height desk rather than a wobbly one. Testing the stability (or confirm from other's review) before you buy.

Comment · 12 years ago
The whole article is based on the assumption that people make donation to universities as charitable donations. I find that a bit unrealistic. Give money to universities are gesture of appreciation from alumni, gain more opportunities of networking/recognition from the university for the donor and his/her family, etc. For donations with the pure purpose of helping the poor, there are other institutions for that.
Comment · 13 years ago
3D TV is no longer a gadget that can be easily purchased on a whim and throw away in the closet later. Check the 3D TV sale in China, I bet you will find it's not more than the US.

For now I can only provide an anecdotal evident that most of the Chinese I know (including me) don't like 3D (TV or Movie). 3D movies are very tiring and draining to watch, and afterwards I don't remember the scenes as vividly as I would from a 2D screen.

I'd say this is just a sign for Xiaomi to show interest of entering the "home TV, phone, tablet as unified" system market. There are much to be desired there.

Comment · 13 years ago
Let's see, is it similar to WordNet but with open access (i.e., anyone can edit)?
Comment · 13 years ago
FWIW, Geography major student do have access to professional traffic simulation software (e.g., TrafficSim, SUMO, .etc) if they are interested in research topics related to traffic. I am not sure what algorithm Sim City uses, but I am assuming they are not as complicated as these professional software.

Perhaps that's the point of your suggestion, to lower the entry level to these field, or for a broader audience.

Comment · 13 years ago
Comment · 14 years ago
sorry, just saying that I actually work in the field, not just a bystander saying apple is evil. I would be very happy if OSM in the end works(which I believe it will, just need at least a couple of more years); I would also be happy if apple map were able to fix the problem--which, as I pointed out, is the under-emphasized data issue.
Comment · 14 years ago
The map failure is just another example of where apple's design principle cannot be blindly applied to every product. Apple's top-down approach on software design is expected to fail on Maps. Maps put hard requirement on data, bottom data, nothing to do with your leader's vision. Apple's way out of this is not to engage user input to add missing data or correct data errors --OSM tried that for years, the most accurate data still comes from semi-professional survey-er.

Look at other companies that does map, google map started out using Tele Atlas, NavTeq serves yahoo, bing and mapquest. Let's face it, spatial data cost money to collect and even more costly to update/maintain. Nevteq and Tele Atlas are gigantic companies for serving basic spatial data for a reason.

I guess apple didn't do sufficient data QA before saying, "hell yeah we are going with OSM where every big player is going with commercial data."

Without a solid baseline data, any fancy pants software development would just evaporate in air.

I have to say though, the GUI for apple map and functionality has very high usability. Apple just need to adapt a different mindset when dealing with data-dependent applications.

(disclaimer: I am a PhD student in Geography with CS background, did my share of processing spatial data for the last 8 years)

Comment · 14 years ago
also the wages of skilled worker in China, India, Vietnam, .etc skyrockets during the last 2 years.
Comment · 14 years ago
I am somewhat doubtful about gyroscope replacing GPS. If it can actually happen, it will require, as noted by others, re-tuned/tweaked/calibrated/adjusted every day/week to void accumulated error/noise.

Keep in mind that as precise as gyroscope can get, they could be susceptible to shock (if you drop it on the ground).

But I am interested in seeing how it could develop into

Comment · 14 years ago
Usually priceonomics provides statistics from a large poll of customer/purchase record, .etc. That is information you couldn't gain elsewhere. Somewhat like an analytics publication.

This article is just a description of a shopping experience, together with the research result you have to do before you buy something that is a new category to you.

Oh well.

Comment · 14 years ago
"How stable is the team (meaning, how frequently does the team change members)"

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