课程信息
4.3
43 个评分
9 个审阅

100% 在线

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初级

完成时间大约为25 小时

英语(English)

字幕:英语(English)

100% 在线

立即开始,按照自己的计划学习。

可灵活调整截止日期

根据您的日程表重置截止日期。

初级

完成时间大约为25 小时

英语(English)

字幕:英语(English)

教学大纲 - 您将从这门课程中学到什么

1
完成时间为 1 小时

Introduction

An introduction to what this course is about: the fundamentals behind social and technical networks....
5 个视频 (总计 39 分钟), 3 个阅读材料
5 个视频
Sharing Is Hard & Ranking is Hard8分钟
Crowds Are Wise & Crowds Are Not So Wise7分钟
Network Is Expensive & Divide and Conquer7分钟
End to End & Bigger And Bigger8分钟
3 个阅读材料
About Us10分钟
Suggested Readings and Links10分钟
Keep in Touch10分钟
完成时间为 3 小时

Power Control in Cellular Networks

How is it possible that we can all communicate effectively without disrupting each other's calls, messages, or Internet usage? In this lesson, we will take a look at some of the methods that have been developed for letting us "share" the air over which our phones communicate....
21 个视频 (总计 125 分钟), 1 个阅读材料, 1 个测验
21 个视频
Multiple Access6分钟
FDMA8分钟
0G4分钟
Attenuation5分钟
Cells & 1G9分钟
2G3分钟
TDMA4分钟
CDMA8分钟
Cocktail Party Analogy4分钟
Near-far Problem8分钟
SIR5分钟
DPC7分钟
DPC Computation: Part A11分钟
Negative Feedback3分钟
DPC Computation: Part B 7分钟
Convergence3分钟
Distributed Computation3分钟
Handoffs3分钟
CDMA & 3G5分钟
Summary2分钟
1 个阅读材料
Power of Networks10分钟
1 个练习
Problem Set #130分钟
2
完成时间为 2 小时

Random Access in Wifi Networks

In this lesson, we will investigate WiFi, another type of wireless network. Rather than having stringent power control algorithms as we saw for cellular, WiFi relies on "random access" methods to manage interference among users in the same location....
15 个视频 (总计 98 分钟), 1 个阅读材料
15 个视频
Traffic Analogy4分钟
WiFi Standards5分钟
WiFi Deployment6分钟
Accessing WiFi10分钟
Interference7分钟
Controlled vs. Random Access6分钟
Random Access Protocols & ALOHA7分钟
ALOHA Successful Transmission5分钟
ALOHA Throughput7分钟
ALOHA Inscalability8分钟
CSMA Carrier Sensing5分钟
CSMA Backoff7分钟
CSMA vs. ALOHA5分钟
Summary3分钟
1 个阅读材料
Power of Networks
完成时间为 2 小时

PageRank by Google

In this lesson, we will take a look at PageRank, Google's famous algorithm for ordering the results on its search page. PageRank is a prime example of how coming up with the right "ranking" of a set of items is a difficult yet important question in networking....
11 个视频 (总计 67 分钟), 1 个阅读材料, 1 个测验
11 个视频
Search Engines7分钟
Webgraphs8分钟
In-degree3分钟
The "Random Surfer"7分钟
Importance Equations5分钟
PageRank Example Calculation10分钟
PageRank Example Summary5分钟
Dangling Nodes & Disconnected Graph6分钟
Robust Ranking3分钟
Summary3分钟
1 个阅读材料
Power of Networks
1 个练习
Problem Set #230分钟
3
完成时间为 1 小时

Product Rating on Amazon

The decision of whether or not to purchase something online is often driven by the ratings that previous customers have left for it. In this lesson, we will take a look at Amazon's review system, and the see how "crowds are wise" is another important networking principle....
11 个视频 (总计 69 分钟), 1 个阅读材料
11 个视频
Average Ratings10分钟
The Wisdom of Crowds10分钟
Rating Aggregation Challenges4分钟
Naive Averaging5分钟
Bayesian Ranking: Part I5分钟
Bayesian Ranking: Part II9分钟
Bayesian Ranking in Practice5分钟
What does Amazon do? Part I5分钟
What does Amazon do? Part II5分钟
Summary3分钟
1 个阅读材料
Power of Networks
完成时间为 2 小时

Movie Recommendation on Netflix

One of the perks of having a Netflix subscription is getting recommendations of movies to watch. Behind the scenes, Netflix uses powerful algorithms to determine which will be suggested to each person specifically. In this lesson, we will take a look at the main ideas behind these algorithms....
18 个视频 (总计 111 分钟), 1 个阅读材料, 1 个测验
18 个视频
Video Streaming5分钟
Recommendation is Everywhere3分钟
Netflix Recommendation System5分钟
Netflix Prize: Logistics7分钟
Netflix Prize: The Competition4分钟
Our Example3分钟
Raw Average7分钟
User-movie Interactions7分钟
Baseline Predictor6分钟
Similarity4分钟
Cosine Similarity9分钟
Similarity Values10分钟
Leveraging Similarity8分钟
Neighborhood Predictor4分钟
Performance of Different Methods3分钟
Summary3分钟
Copy of Cosine Similarity9分钟
1 个阅读材料
Power of Networks
1 个练习
Problem Set #330分钟
4
完成时间为 2 小时

Midterm

...
1 个测验
1 个练习
Midterm
5
完成时间为 1 小时

Viral Videos on YouTube

What does it take for a video to become "viral" on YouTube? In this lesson, we will take a look at some of the key factors and models that have been used to explain this phenomenon. At the core is the notion of information cascade in a network, which is the counterpart to the wisdom of crowds....
12 个视频 (总计 77 分钟), 1 个阅读材料
12 个视频
Viral style and video recommendation7分钟
Defining "viral"3分钟
Popularity4分钟
Information cascade & sequential decision making8分钟
Number-Guessing Thought-Experiment3分钟
First, second, and third "guessers"7分钟
Analyzing cascades: Part I13分钟
Analyzing Cascades: Part II10分钟
Emperor's New Clothes4分钟
Considerations5分钟
Summary4分钟
1 个阅读材料
Power of Networks
完成时间为 2 小时

Influencing People in Social Networks

In this lesson, we will continue with our theme of influence, now paying more attention to people's social networks. We will discuss different ways of measuring importance and a popular model for influence spread in social networks like Facebook and Twitter....
13 个视频 (总计 89 分钟), 1 个阅读材料, 1 个测验
13 个视频
Who is "important?"6分钟
Social graph2分钟
Degree centrality4分钟
Closeness centrality: Part I5分钟
Closeness centrality: Part II10分钟
Betweenness centrality: Part I4分钟
Betweenness centrality: Part II13分钟
Contagion: Part I6分钟
Contagion: Part II7分钟
Cluster density2分钟
Marketing strategies10分钟
Summary4分钟
1 个阅读材料
Power of Networks
1 个练习
Problem Set #430分钟
6
完成时间为 1 小时

Pricing Data

Data makes up a significant part of our cell phone bills. How do cellular providers set these price points? In this lesson, we will see how so-called usage-based pricing schemes can send better signals than flat- rate, “buffet” schemes, leading to better sharing of the network....
11 个视频 (总计 76 分钟), 1 个阅读材料
11 个视频
Demand for data8分钟
Jobs' Inequality of Capacity6分钟
Usage-based plans6分钟
Comparing pricing schemes6分钟
Utility5分钟
Demand9分钟
Demand curve & net utility5分钟
The Tragedy of the Commons9分钟
Flat rate creates waste & favors heavy users10分钟
Summary4分钟
1 个阅读材料
Power of Networks
完成时间为 2 小时

Routing Traffic through the Internet

It is hard to overstate the impact that the Internet has had on society. In this lesson, we will overview the fundamental concepts behind the way the Internet is designed. We will also take a look at routing, which is the process of determining how packets of information are transported....
22 个视频 (总计 83 分钟), 1 个阅读材料, 1 个测验
22 个视频
ARPANET2分钟
NSFNET3分钟
The "Internet"2分钟
Circuit Switching vs. Packet Switching2分钟
Statistical Multiplexing & Resource Pooling4分钟
Packet vs. Circuit Switching Summary2分钟
Distributed Hierarchy4分钟
Routing Traffic3分钟
IP Address4分钟
Prefix & Host Identifier4分钟
DHCP & NAT5分钟
Routing Protocols1分钟
Forwarding3分钟
Shortest Path Problem5分钟
Bellman-Ford Example2分钟
Cost Updates4分钟
Example: Two Hops5分钟
Example: Three Hops4分钟
Example: Summary3分钟
RIP and Message Passing4分钟
Summary2分钟
1 个阅读材料
Power of Networks
1 个练习
Problem Set #530分钟
7
完成时间为 1 小时

Controlling Congestion in the Internet

The Internet has many important tasks to manage, like routing packets (discussed in the last module) and controlling congestion. This workload is modularized into different functional layers, each responsible for performing a different set of functions, as we will see in this lesson. We will also look at the principles of congestion control, managed at the transport layer....
18 个视频 (总计 77 分钟), 1 个阅读材料
18 个视频
Layered Protocol Stack4分钟
Transport & Network Layers4分钟
Headers4分钟
Processing Layers2分钟
Controlling Congestion4分钟
Traffic Jam & Bucket Analogy3分钟
End Hosts3分钟
Sliding Window2分钟
Cautious Growth of Window Size6分钟
Inferring Congestion5分钟
Congestion Control Versions2分钟
Loss-Based Congestion Inference5分钟
Delay-Based Congestion Inference: Part I6分钟
Delay-Based Congestion Inference: Part II5分钟
Delay-Based Congestion Inference: Part III4分钟
Distributed Congestion Control5分钟
Summary3分钟
1 个阅读材料
Power of Networks
完成时间为 2 小时

It's a Small World

Six degrees of separation is a widely told story in popular science. How can it still be a "small world" with the enormity of the Internet today? It depends on how the social networks are structured, and on how we search for short paths, as we will see in this lesson....
17 个视频 (总计 99 分钟), 1 个阅读材料, 1 个测验
17 个视频
Milgram's Experiment8分钟
"Small world" in Culture5分钟
Structural vs. Algorithmic Small Worlds3分钟
Triad Closures and Homophily6分钟
Average Shortest Path7分钟
Random Graphs5分钟
Clustering Coefficient: Part A8分钟
Clustering Coefficient: Part B4分钟
Regular Graph: Part A8分钟
Regular Graph: Part B5分钟
Watts-Strogatz Model: Part A3分钟
Watts-Strogatz Model: Part B4分钟
Discovering Short Paths6分钟
Watts-Dodds-Newman Model: Part A5分钟
Watts-Dodds-Newman Model: Part B8分钟
Summary5分钟
1 个阅读材料
Power of Networks
1 个练习
Problem Set #630分钟
8
完成时间为 2 小时

Final Exam

The final covers the last six lessons in the course (those after the midterm). Like the midterm, the questions are all multiple choice, and tend to be easier than the homework questions but harder than the in-video quizzes....
1 个测验
1 个练习
Final

讲师

Avatar

Christopher Brinton

Lecturer
Electrical Engineering
Avatar

Mung Chiang

Professor
Electrical Engineering

关于 普林斯顿大学

Princeton University is a private research university located in Princeton, New Jersey, United States. It is one of the eight universities of the Ivy League, and one of the nine Colonial Colleges founded before the American Revolution....

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