Archive for the ‘Random’ Category

ReCaptcha

Saturday, April 12th, 2008

ReCaptcha is Carnegie Mellon startup that I’ve seen a lot of recently on blogs. I was wondering what the deal is and what makes it different from other Captchas. It turns out that recaptchas use two words instead of one. One of them is a recognized word, while the other is not, what you enter in the latter field helps digitize books.

Smart thinking indeed. I couldn’t find any documentation on how exactly it works, but I’m guessing it uses a probabilistic method based on what the majority of people type in. Sometimes, its easy to guess which word is likely to be the unrecognized word, so it becomes easier to screw around. Moreover, what would happen if the unrecognized word is likely to be confused with another word, there might be trouble with probabilistic methods then?

Considering that, its probably a good thing not many who enter a reCaptcha dont know how it works, or they would probably be too lazy to get the second word right.

Social Apps – Usage Discipline?

Monday, March 31st, 2008

We developers love it when people use our applications on social networks, but sometimes it can go a little too far, one of my friend’s profile looks something like this:

(more…)

Dreamhost – Out of Space?

Saturday, March 29th, 2008

So things were looking bleak with Dreamhost’s latest troubles, but it now seems they want me to switch to another host earlier than I want to. Sure, shared hosts oversell, but they normally do it in a managed way, but something’s gone seriously wrong with Dreamhost’s probability calculations. I tried downloading a file and it told me I was out of space. Now, I am using about 2% of my allocation, so it isn’t me that’s the cause here, have a look:

Dreamhost out of space

Houston , we a problem!

Why are there so few India-centric web applications?

Wednesday, March 26th, 2008

 

Here’s your answer! Internet penetration in India is just plain lousy, so where’s the incentive for us developers? 

Airtel shares its wisdom

Wednesday, March 26th, 2008

 … and I thought all along it was the other way round! Either this is invasion of the nerds (hint: IT ISN’T) or its horrible advertising.


Google Apps gets upgraded Gmail

Tuesday, March 25th, 2008

Regular Gmail uses got the upgraded Gmail ages ago, but Google Apps users were made to wait for ages. I was checking my mail this morning, and I see this:

Looks like its finally here!

Virgin Mobile India – Playing the Probability Game

Tuesday, March 25th, 2008

As much as I’d like to ramble about how evil Virgin are and how much they want to suck out your money, I wont, because some good people are already doing that. Instead, I wanted to talk about a very clever and deceptive marketing trick they’ve employed in India in recent times – yes I’m talking about the “Get Paid for Incoming” scheme, so yeah, I am rambling about how evil they are!

So, the deal is that you get paid Rs. 0.10 for every minute of incoming calls. For a crude analysis, lets assume the average cost of an outgoing call is Re. 1 per minute (local), and averaging that with STD, which is around Rs. 2.40 a minute on Virgin and something similar on other operator, so doing another rough weighted average, lets assume that the average cost of a call in India is about Rs. 1.50 per minute.

It all boils down to this, for every Rs. 1.50 somebody spends, a Virgin customer gets Rs. 0.10. That, not considering VAS and other factors, looks like this:

That’s about the 6% market share Virgin needs to break even based on just calls alone. Now, there are…

Other reasons why Virgin thinks they’ll screw the customers

  1. They’re targeting the youth segment, and that is one segment which does a lot of texting, so that’s basically free money for Virgin.
  2. Virgin is pretending to be VAS rich, again free money (for the most part).
  3. What am I forgetting? Oh yeah, remember all the fees required to keep your connection alive and working. There was so much terminology (top-up, refill, recharge, validity extension, bla. bla.) that I got fed up and got a postpaid. That’s how they mint money.

Based on the above, that 6% might as well drop to well below even 1% if they get the customers they want, and if there’s anything Richard Branson does well, its getting a “certain kind” of customer.

And finally… How to screw Virgin Back

Give up and go back to the days of good old post, it cannot be done. But seriously, do exactly what they show in the ads, you earn, but somebody’s money is most probably going to Virgin.

Oh wait, not to mention losing all of your pride. Wait again, if you’re doing this, you probably never had any.

Dreamhost – Patience Running Out

Sunday, March 23rd, 2008

This is the third consecutive year that one of my websites has been hosted with Dreamhost. Despite reading a lot of negative comments about Dreamhost, my experience with them has been positive overall, so I decided to hang in there for a third year, but this year has been anything but happy, and with the last outage of the Blingy cluster, I almost signed up for MediaTemple that same day, and probably would have, has I not read some comments about their basic (gs) package having huge latency issues and other problems.

The next day Dreamhost looked like it was seeking revenge, churning out pages faster than I’d seen it do in months, but good things are never meant to last, Dreamhost is so slow today that even the Visual editor for Wordpress isn’t able to work properly. Come June, I’m anticipating some serious traffic, and at this rate, Dreamhost just wont cope (hell, it cant even cope with a Facebook application with just 115 daily active users right now), so I’m going to the pros. I see two low-cost options stacked up – MediaTemple and SliceHost. SliceHost gives root access on their $20 a month VPS while MediaTemple uses a grid service that is somewhat better than shared services but reportedly not as good VPS, no matter what their marketing hoopla says, but they are trying to correct it with their upcoming (cs) package, which I might consider if its out in time.