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Hey, what happened to “Do no evil”?

via Pharyngula, YouTube has banned James Randi Foundation.

Update: Edited.

It might be some technical reason why this happened. Or its possible some religious group bombarded with complaints against it. But JREF is a well-known, reputed and well-regarded. It does not behoove of You Tube to just pull off the videos abruptly. Apparently, JREF are not aware why they have suspended their account.

India vs. NZ

I see only two possible reasons to explain the progress of the second test:

(i) Dhoni is the man for the job. No one else in the Indian team comes close.

(ii) Our team is as inconsistent as always, just that the victories of late seemed to hide this fact from our collective short-term view.

The two are not mutually exclusive.

“But”

We hear the following sentence construction a lot these days:
“I am not a [insert a general label here], but I believe […]”

A few months back, we were discussing this and Vani made a comment that I agree with. You can safely ignore what comes before “but”. Keeping only “I believe […]” will not change the message at all. For example:

Statement: “I am not closed-minded but I think women who wear jeans are asking for it.”

What it means: “I think women who wear jeans are asking for it.”

What it really means: “I am closed-minded”

(PS: Not applicable to all statements with a “but”, but only to the construct above.)

Perverse Speech?

At a recent rally, Uddhav Thackrey called Manmohan Singh a eunuch. Congress has condemned it as a “perversity of the highest order” and police is looking into the matter to see if any model code of conduct was violated. A few points:

  • Why is calling someone eunuch an insult? As Amit rightly points out, being an eunuch is not a disqualification for the job of the PM; why can an eunuch not do as good or better job than a male or a female?
  • While one might object to the use of “eunuch” (I don’t), why would this be violation of model code of conduct. Why is the police even spending their time on this? There is no actionable material in that statement.
  • The article says: ‘Uddhav recalled the remarks made by people at his Pune rally in January terming Prime Minister as “a eunuch.”‘ So no, Uddhav didn’t call Dr. Singh a eunuch, he just mentioned people at his rally called him a eunuch. That is one additional step away from being actionable.
  • A congress rep said that “BJP is resorting to such remarks out of frustration […] on the losing ground.” If you really believe that statement, let the remarks pass. They won’t hurt at all since they were made to a group of folks who would anyway not be voting congress.

Of GATE, GRE and Flight to US

Post-graduate schools in India face a big problem: With may be a few exceptions (ICT, Mumbai, my undergrad institute is one such exception), we do not get a consistent pool of good students joining our graduate programme. Just to give you an idea, in the four semesters that I have been here, we have recruited 0, 8, 6 and 2 PhD students. Of them, a few have already quit the programme. The number of recruits to our MS programme has been even lower. The only graduate programme where we consistently get students is the M.Tech. programme, which can be considered as a largely course-based programme.

In order to counter this, IISc has decided to not use GATE as an admission criterion for their PhD programme. Giridhar disagrees and feels that GATE is necessary as a standardized test. Abi, on the other hand, welcomes the move of admitting graduate students without a GATE score to the PhD programme. Last year, Arunn made a case in favour of using GRE as a standardised admission test for graduate school in India.

Here is my take on this issue. Most of it is a summary of arguments already made by others. First, the advantages of GATE exam: it is a standardized test, designed to evaluate students from different parts of the country using a common measure. Since it is supposed to test the knowledge (or extent of preparation) in the major course of study, it should be a good indicator — in theory — of how suitable would a candidate be for the proposed course of study. If someone is incapable of securing more than a bare minimum threshold, s/he is likely to struggle in the grad school.

Next, the disadvantage of the current format of GATE: The exam is designed, not to test the skills students have acquired during the undergraduate course of study. Instead, the exam follows a certain pattern and students well-trained on that pattern do well. With multiple choice form of the test, it is not necessary for students to know the right answer; they can do well by just playing the odds. In fact, in the students I have encountered, there seems no correlation between GATE score and performance in the courses.

Regarding the disadvantage of GATE vis-a-vis alternate tests such as GRE: By the very nature of the test, GATE is biased against students who do not have a background in their proposed field of post-graduate study. Just to give an example, a few of our students have gone to grad schools in US and shifted to a different major (eg., Chemical Engineering –> Chemistry; [*] Engineering –> Physics; Mechanical –> Chemical Engineering, etc.). Such a shift is difficult in India; major reason for this is “cultural,” but reliance on GATE as an admission scheme is also an important reason.

The disadvantage of GRE (including AGRE) is that it does not test skills in the field of study quite the same was as GATE does and it is expensive. There are good students, who have poor English / communication skills. They are at a disadvantage if GRE were to be used instead.

Finally, the major point I want to make is that any method that relies on a single criterion for admission, such as GRE, GATE or JEE is inherently flawed. GATE/GRE does not suffer from similar disadvantages as JEE because they are not the only criterion for admission to post-grad schools. However, we tend to put too much weight on GATE scores. What we need to do is look carefully at the performance of the student in his/her four years in undergrad, use GATE not as a criterion to judge individual students but instead as a criterion to compare various individual colleges/universities. A single GATE score could be an outlier; average performance (over several years) of a college is much stronger measure of how we rate one college versus another.

That way, we will be able to say that a nine-pointer at IIT is (on an average) better than nine-pointer at (say) AC-Tech (Anna University), who in turn would be better than low-eight-pointer at IIT.

But more than anything else, we need to get the word out that doing a Masters (and even a PhD) at IIT/IISc is a viable option. Just to give an example, working with me for MS allowed one of my students to secure admission in a top-20 US university, which he otherwise would not have gotten based on his undergraduate degree alone. More of “Flight to US” will be dealt with in a follow-up post.

Update: As mentioned in my comment on Giridhar’s post, my statements about lack of correlation between GATE and performance are not based on analysis of a good-sized sample, but based on the courses I taught. The biggest caveat is that all these students were in 90+ percentile in GATE.

Change!

My mom, speaking to my aunt and uncle (November 2008): “Although they [me and P] lived in US for almost 9 years, they haven’t changed one bit.”

My mom to me, just 3-4 days later: “You have really changed so much that I find it difficult to discuss anything with you.”

I gently reminded her that she is getting close to sixty. “See, thats what I am talking about: you have changed!”

George Carlin: I don’t vote

Here is George Carlin’s take on voting (offered without comment from my side):

I believe if you vote, you have no right to complain. People like to twist that around – they say, ‘If you don’t vote, you have no right to complain’, but where’s the logic in that?

If you vote and you elect dishonest, incompetent people into office who screw everything up, you are responsible for what they have done. You caused the problem; you voted them in; you have no right to complain. I, on the other hand, who did not vote, who in fact did not even leave the house on election day, am in no way responsible for what these people have done and have every right to complain about the mess you created that I had nothing to do with.”

As Atanu Dey is wont to state: we get politicians we deserve. Money quote from Carlin, “This is the best we can do, folks. It’s what our system produces: Garbage in, garbage out.