Frankly, i really don't understand why there are so many people believing that finance or business major is more profitable than STEM (Science, Technology, Engineering and Mathematics) major.
I just saw this in IEEE Job Alerts mailing list. http://www.mnn.com/money/personal-finance/stories/report-finds-rising-pay-in-science-and-tech-jobs
Think about it. It is reasonable for a STEM guy to get high payment. What can really move human civilization forward? What can really create things people wanna buy at high prices? And, an easier major means more graduates, each of which is less valuable.
The world is fair. Stop dreaming about high payment with a degree from a major that allows you to party everyday.
2011-07-20
2011-07-09
Even logicians cannot understand?
Zack: I don't get it. Leonard: A dolphin might. - The Big Bang Theory, Season 4 Episode 10
by Forrest Sheng Bao http://fsbao.net
From a practical perspective, I would like to admit that the reason logic programming isn't popular (as popular as empirical programming) is because it involves a lot of math on logics whereas not many people are trained on logics.
Today, I came across a paper, Logic Programming with Defaults and Argumentation Theories at http://www.cs.sunysb.edu/~kifer/TechReports/LPDA09.pdf It was published in 2009, at ICLP, the top conference on logic programming.
A modern development in logic programming is the introduction of default negation, which brings in nonmonotonicity and can facilitate common-sense reasoning. But this paper says:
"default negation is too low-level a concept to be safely entrusted to a knowledge engineer who is not a trained logician."
Oops! On top of that, the authors continue:
" Anecdotal evidence suggests that logicians are also not doing much better when it comes to modeling concrete application domains using default negation as a sole tool."
I guess we need someone or someones to evangelize logical programming to people who may be in need of it, in a made-easy way.
by Forrest Sheng Bao http://fsbao.net
From a practical perspective, I would like to admit that the reason logic programming isn't popular (as popular as empirical programming) is because it involves a lot of math on logics whereas not many people are trained on logics.
Today, I came across a paper, Logic Programming with Defaults and Argumentation Theories at http://www.cs.sunysb.edu/~kifer/TechReports/LPDA09.pdf It was published in 2009, at ICLP, the top conference on logic programming.
A modern development in logic programming is the introduction of default negation, which brings in nonmonotonicity and can facilitate common-sense reasoning. But this paper says:
"default negation is too low-level a concept to be safely entrusted to a knowledge engineer who is not a trained logician."
Oops! On top of that, the authors continue:
" Anecdotal evidence suggests that logicians are also not doing much better when it comes to modeling concrete application domains using default negation as a sole tool."
I guess we need someone or someones to evangelize logical programming to people who may be in need of it, in a made-easy way.
2011-07-02
The schematic for my ECG sampling circuit
by Forrest Sheng Bao http://fsbao.net
So here is the schematic of my ECG sampling circuit. I designed the circuit in fall 2010.
I would like to say that TI's(well, Burr-Brown's) instrumentation amplifier is awesome. You just put things together and then they rock. No need to tune the peripheral circuit. It's kinda like out-of-the-box solutions. Since the gain can be very high (10000 times linear), i think they can even be used for EEG sampling circuit.
I did not build the ADC circuit and interface to computers, but used NI myDAQ. The power supply for this circuit is also provided by NI myDAQ.
There are three electrodes connected to human body, the belly (ground), the left wrist (one input), and the right wrist (the other input).
This circuit can also sample signals output from NI myDAQ back to test the property of the circuit. Since the lowest resolution to NI myDAQ is 100mV, i used an op-amp (OPA177) as a voltage divider to scale down the output signal from NI myDAQ to its 1/10 (in voltage amplitude).
The schematic was drawn by gEDA/gschem. Click to enlarge.
So here is the schematic of my ECG sampling circuit. I designed the circuit in fall 2010.
I would like to say that TI's(well, Burr-Brown's) instrumentation amplifier is awesome. You just put things together and then they rock. No need to tune the peripheral circuit. It's kinda like out-of-the-box solutions. Since the gain can be very high (10000 times linear), i think they can even be used for EEG sampling circuit.
I did not build the ADC circuit and interface to computers, but used NI myDAQ. The power supply for this circuit is also provided by NI myDAQ.
There are three electrodes connected to human body, the belly (ground), the left wrist (one input), and the right wrist (the other input).
This circuit can also sample signals output from NI myDAQ back to test the property of the circuit. Since the lowest resolution to NI myDAQ is 100mV, i used an op-amp (OPA177) as a voltage divider to scale down the output signal from NI myDAQ to its 1/10 (in voltage amplitude).
The schematic was drawn by gEDA/gschem. Click to enlarge.
Subscribe to:
Posts (Atom)