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Now that I have talked about a preview of the material.

And also the pedagogical approaches for this course, let's talk now about the

logistics, the logistics around this open online education.

So it's actually interesting, this course is about the networks and will be

delivered by these networks, including the Internet.

Wireless networks, you might be watching this video at this moment, using an iPhone

or a smartphone on Android operating system over some cellular or wifi

connections. You might have been actually irritated by

the grading quality of the video voice, because of congestion in the internet.

Now it's also about the YouTube phenomenon.

It is about the social network as well, okay?

This is a social learning experience and it's precisely because of this social

network that we can allow a self scale plus scaling property that can scale out

the resources. You are participating in a P2P network,

except the peers are not computers but actual students.

You contribute to the learning experience of others, and they contribute to yours.

So this is a course about the networks that are delivered via these networks.

Now some of you have asked me what about the prerequisites and what kind of

difficulty can we anticipate in this course.

Well, there are two prerequisites. One is, linear algebra, the other is

multivariable calculus, especially differentiation.

We won't actually be using integration that much.

And a basic understanding of very rudimentary, probability ideas.

Okay. But, if you don't have that, it is easy to

pick up in terms of what we need, in this course.

Now you may say, gee, I've never taken linear algebra course or, multivariable

calculus, or, I've already forgotten about that.

Well then there are two solutions. One, is that, you will see that the video

for all the twenty lectures are structured into modules.

And usually around five modules. Each module is ten to 25 minute long.

Okay. And we'll follow the follow one, flow.

We'll start with a short answer to each of the twenty questions that structures this

course, then we'll go into a long answer. And then we go into examples.

Then we go into advanced material. By the way, this is exactly the structure

we use in each chapter of the textbook as well.

Now, the short answer section in the book or in the video, that module, these are

accessible by everyone. Okay.

In fact, we probably won't be even using a single mathematical symbol in those parts

of the lectures. And then as we go into the long answer

sections of the modules, part of the answers will involve linear algebra, and

calculus. But, most of them, I'll say perhaps 60 to

70 percent do not. And then when we go into numerical

examples, these are completely numerical in almost all cases and require no

symbolic operations so they should be accessible by the vast majority of the

students there. And we stop actually.

Okay? Advanced material sections in the textbook

is not part of this course. Now we maybe making those videos and mark

them as AM, advanced material, okay, but they are not part of this course.

So, if you look at this flow even without linear algebra or calculus, you can

probably get about. I'll say 70 to 80 percent of the material.

So, feel free to follow us. And, as you know, that Princeton, as a

policy, this semester at least does not sign certificate at end of this course.

So there's no pass or fail to speak of anyway.

You won't be embarrassing anyone if you just follow through the course.

And when we talk about things involve these, you can just tune out or fast

forward or something. Each lecture is pretty much independent of

the previous ones, so I think you still get the vast majority of the content.

Just be prepared to tune out every now and then.

And also, in May 2013. Okay?

Next spring, late spring and summer, we will offer a version of the same course

that requires only addition and multiplication, which can be done on a

calculator, I guess. So if you want, you can also take the

version that doesn't involve any math beyond adding two numbers and multiplying

two numbers. And we will still cover the essential

ideas of these twenty questions back then. Well, about the level of difficulty here.

There is a wide spectrum for a technical course like this.

Okay? We looked at some of the statistics of

technical courses, engineering on these kind of platforms.

Whether it's Coursera you'd ask or EDX. And often, a few percent actually complete

the course that is technical in nature. Okay?

So, we want to cater to the need of those people who would like to have a basic

understanding, and that is valuable education experience.

But we also want to give the few percent a chance to challenge themselves.

So, what we want to do is to say, look, we will have simple, multiple choice

questions. Okay.

Quiz questions. We have simple homework problems.

And we have 70, 80 percent of the video that everybody can access.

If you want, you can just keep yourself to those parts of the course.

But then, as you'll see in a minute, we'll also introduce a few challenging aspects

even beyond homework for those who would like, to go through the experience which

require a lot of time consumption and a lot of preparation.

So that in this way, we can cover by and large, this wide spectrum of students

something like 38,000 of you out there. Now, the calendar, we're going to

synchronize, at least in the force master, with Princeton calendar because the same,

identical course is being offered at Princeton University's undergrad

curriculum. And therefore, the quizzes, the homework,

the midterms and final exams will all follow Princeton's calendar, as you can

see from the course page as well as email. That we officially start September

seventeenth, although this very lecture, lecture zero, will be uploaded to YouTube

channel and be available one week before. And, in general, we will do the following.

One week before the official start of that lecture, we will upload the video on

YouTube, on iTunes view and in this semester 2012, on the platform of

Coursera. And the real lecture.

Today is not a real lecture. Lecture one starts, September nineteenth

at Princeton. So, on that day and probably a couple of

days beyond that, the TAs, and myself, will be jumping, into, the discussion

forum. Okay?

And we will be also issuing homework at the same time as Princeton's course, which

is every Wednesday. And the homework solution will be released

one week after that. So there will be twenty lectures beyond

today's lecture, and they're on a Monday, Wednesday schedule.

Now, except Princeton's calendar, has a fall break.

And also the Wednesday before Thanksgiving in the United States, we will not have a

lecture, because many students will be traveling.

So for more details, you can look at the syllabus schedule on, on your email, and,

or on the website. Now of course we'll be using Coursera.

This fall semester 2012, for the videos, for the homework, exams, and very

importantly for the discussion forum. And as I mentioned, the TA's and I will be

jumping into this forum on a daily basis. Now these videos will also be uploaded to

YouTube, and iTunes U. Many of you tap YouTube app on your

smartphone or tablets, when you're on the commute or, waiting in the grocery store's

checkout line or something, okay? So they will be available over these two

platforms too. Now beyond Coursera, we'll use other four

channels of communication. So altogether there're actually five

platforms for different purposes. Now we will be building an archival

quality wiki and blogs, so if you have a question about this homework problem, if

say gee, is that a, a typo in the homework assignment, please go to discussion forum.

But if you want to actually write a textbook, then come to this website,

network20q.com. This is official class website and we will

be viewing archival quality wiki student generated course material.

If you want to write blogs, because if you look at the list of twenty topics, not

just topics that we're focusing in a particular week, but any of these twenty

topics. Okay, you open a newspaper, a radio, a TV,

even movies these days. Everyday you see many interesting stories

relevant to these twenty questions, and we welcome your blogs.

So we'll want to take the network20q.com blog as a platform to aggregate

interesting contents generated by students like you, both for wiki and for blogging.

And how do you access this? Well you can use your Coursera user name

and pass code. And you'll be able to have access to write

onto the wiki and the blogs here. So I encourage you to go take a look at

network20q.com today. The third platform is Facebook.

So please subscribe to me. You can find me Mung Chiang on Facebook.

12:32

And if you want me to send something out, retweet, just direct message me.

And if something, indeed, of interest to the class, I will do a, a retweet.

So for fun and quick communication, we'll be using Twitter.

In summary, Coursera, course website, Facebook, Twitter, and email for different

purposes. What about the textbook?

This is a recommended textbook. And I hate to say it's actually written by

the same guy, by myself and it's recently published.

How recent? It's like we published a, a couple days

ago by Cambridge University Press, and now you can purchase it either on

cambridge.org or on Amazon. And I think, I don't know what's the

discount Amazon gives. But cambridge.org their discounted price

is something like $40, okay? So this is a 500 page textbook that was

written explicitly to go with this course. It was written the same time that this

course was developed. And the twenty questions and answers

follow exactly the order of this course. Now, more interesting perhaps, is that

books number, single book, is that we will be writing a book together.

You and me. The Wiki of archival quality that I just

mentioned on network20q.com webpage. At the end of this course, we will be

collecting those Wiki entries. And we will publish a book, at least an

e-book, maybe even a physical book that's co-authored by maybe thousands of

students, a massively student authored textbook.

So, if you will like to participate in that please start writing the Wikis on

those left side. Now, to those who want to challenge

yourself we'll give you an opportunity to do that and we will be providing ample

rewards for those who pour their hearts into such an exercise.

You have access to an educational material.

What about access to career changing or even life changing opportunities.

So here is a pilot program, an experiment. Well, we call it the grand challenge

homework, GCH. There'll be about ten of those that we'll

be issuing over the first half of the course.

And these are very challenging. They're open ended.

They might be proving a theorem that actually we don't know how to prove.

Might be designing a brand new system with commercial potential.

It might be writing a piece of code to do something that's highly non trivial to do.

And they are really challenging and potentially time consuming.

And we only expect, maybe a couple hundred of you will actually attempt these GCH.

And they may take a few weeks, they may take a month or two.

But if you work your heart out, then we will go through a couple rounds of

screening with the TAs and then with me Skyping with you.

And then, the finalists will be coming over to the US.

At Princeton, I will fly in some of the finalists.

And maybe in my research lab at Princeton, we would like to engage you one way or

another. A student, a contractor, a visitor of some

kind. And I have also lined up a pilot program

of IIP. Investor and industry partners.

Now there are about five venture capitalist and five leading networking

companies from world famous research organizations, to start ups founded by

major figures in the industry. And these are five of these season five

networking companies that have agreed to work with me on creating GCH content and

to screen the finalist. And if they like what you have done, they

may also fly you in. Maybe you'll together create a new

product. Maybe you'll together create your own

company. So, just wait for the signal, where in GCH

will becoming your way. We'll be announcing them in the coming

weeks. And to all of you, not just those who

would like to try it out on GCH, to all of you we'll be offering, what we call kudos,

because Princeton as a policy this semester at least, does not offer signed

certificate. We will be providing our virtual pat on

your back. If you do a really nice jobs on blog, a

Wiki and coming up we will be announcing interesting projects and experiments.

Okay, not as challenging or time consuming as GCH.

Everybody welcome to participate of course.

If you do a really good job over there, we'll be announcing your name on Twitter,

Facebook and Network 22 website. Now, MeetUp.

This is an online platform, but sometimes you cannot replace face to face

interactions. So if there are interests in forming study

groups for local chapters, okay, in the same city and the same university of

cooperation, then please let me know by email, for example, and I'll set it up on

Facebook with an open group. I'll create an open group on Facebook, for

example okay, Network Friends, Money Bytes study group in Los Angeles in Mumbai.

And anyone, because it's an open group can sign up and you guys, then, can decide if

you want to form a, a study group to get together on a regular basis.

And I'll be traveling extensively. So any time I travel to a city, I will let

the group know, and see if there might be interest to get together grab a drink

together and have a face to face discussion of the material, and the

pedagogical approaches in this course. So, just let me know if you would like to

have me create such open groups on Facebook.

Now finally, what's going on at Princeton University, then?

Of course, it would be entirely weird, if in Princeton, I repeat the same video

lectures that they can watch on YouTube anyway.

So, the other side of the coin is flip classroom, as in, Khan Academy.

So, the Princeton students in my course, the undergrads will be required to finish

watching the video before they come to the classroom.

And in the classroom, we'll be doing discussions and debates like in business

school and law school. We'll be doing demos and experiments, and

we'll be doing guest lectures. So, some of these guest lectures and some

of the demos and experiments actually will be recorded, subject to consent, and be

made open to the public, we'll put them on YouTube as well.

Now, who are we then? And perhaps much more importantly we'll

want to know who are you. Now here's a list of teaching staff at

Princeton. I'm Mung Chiang.

I'm a professor of electric engineering at Princeton.

And I've been here for nine years, since my PhD at Stanford.

And, we have Chris Brinton Arpan Ghosh, Michael Wang as three wonderful TA's

working very hard to make this a rewarding experience for all of you.

And then we have also our Robert Warren joining us we have Andrew Choi helping

with the programming interfaces with Coursera and Felix Wong, he's a Phd

student, works on our social network in my lab, and will be participating helping out

as well. Okay.

And I want to acknowledge wonderful support from a lot of people, including

few under grads and several graduate students who helped creating this brand

new course, actually started just last year in 2011 at Princeton.

Without their support, we wouldn't be where we are today before in 2012 in

September to offer this all of you. Now, what about you.

Now we want to understand who you are and therefore, when the course website

officially launches on September seventeen, the same day as the course

starts at Princeton campus, please participate in this demographic survey.

We're going to keep it confidential. And we'll only be asking questions such

as, you know, roughly which age group are you in?

What kind of educational background do you have?

Will have no bearing on your performance on the course.

All we want to do is to correlate demographics with the activity data we'll

be logging in the future to enhance our pedagogical style through this experiment.

So we welcome your feedback. You know all the communication channels

now. E-mail me, direct message me, or post

information on your Facebook wall and of course, discussion forums on Coursera and

blogs on class websites. So many communication channels.

Please do that test no. How do you find the material?

How do you find the teaching? How do you find the learning environment

in this experiment? We'll track student performance, even

though we do not sign certificate at the end.

We do anticipate you to do the homework and the exams and be able to complete the

course. And we'll be tracking the performance for

statistical data. Okay?

Not for individual ones, but for statistical data.

So that we can adjust our pedagogical style during this semester, and in the

future offering of this course on these open platforms.

Now, of course, given the wide spectrum of the students out there.

From ten year old to 80 year old from people with a lot of math and programming

background to those who don't. We want all of you to have a rewarding

experience, but we simply cannot make everyone happy in a course that is

tentacled like this one. But we will try to make education as

personalized as possible and we need your help to make that happen.

Well, each of these lectures, videos is divided into around five modules.

They add up to about, let's say on average 80 minutes, run from 70 to 100 minutes.

And then the advanced material part in the future will add another twenty to 30

minutes. But, that's not really part of this course

anyway. As we come to the end of this lecture 0's

video, I want to highlight that there are many interesting topics will be covered.

Okay. So, tighten your seat belt.

We're going to enjoy the journey. And the more you pour time into this

course, the more you will enjoy it, okay. If I plot your happiness in taking this

tentacle course, as a function of the time that you, put in.

Okay, this is actually an increasing function, and if I may postulate, it

probably increases more like this, okay. The more time you put in, the happier you

are in taking this course and the rate of increase of your happiness actually also

goes up as you put in more time. And we'll be talking about networks of

many kinds. Not just social network or economic

network, but also the technological networks that provide the foundation about

those services. They run your life.

Okay, just imagine a day without the more than dozen kind of networks on the first

slide of this lecture, and you got to know them.