If you have ever used a navigation service to find optimal route and estimate time to destination, you've used algorithms on graphs. Graphs arise in various real-world situations as there are road networks, computer networks and, most recently, social networks! If you're looking for the fastest time to get to work, cheapest way to connect set of computers into a network or efficient algorithm to automatically find communities and opinion leaders in Facebook, you're going to work with graphs and algorithms on graphs.
In this course, you will first learn what a graph is and what are some of the most important properties. Then you'll learn several ways to traverse graphs and how you can do useful things while traversing the graph in some order. We will then talk about shortest paths algorithms — from the basic ones to those which open door for 1000000 times faster algorithms used in Google Maps and other navigational services. You will use these algorithms if you choose to work on our Fast Shortest Routes industrial capstone project. We will finish with minimum spanning trees which are used to plan road, telephone and computer networks and also find applications in clustering and approximate algorithms....

CS

Jun 30, 2019

Excellent Course for anyone looking to expertise Graph Algorithm. Professor's explained each problem and algorithm in a very easy to learn approach. Grades are tough and yet func to get challenged.

CC

Oct 6, 2018

Good balance between theory and practice. The assignments are well thought to measure the understanding of videos, which I had to watch many times to grasp the hidden tips from the instructor.

筛选依据：

创建者 shuo z

•Jun 27, 2016

I can only give this two stars at most.

The lecturers are just like reading the PPT without any heuristic teaching approaches.

The assignments make me desperate, always show very poor feedback message -- "Wrong answer", even the cases failed because of performance issue.

The starter files given from the assignment are inconsistent with the pdf description. It's so confusing.

Couldn't get any help from forums.

创建者 Maksadbek A

•Jan 19, 2019

Course instructors did not reply my questions on a discussion forum! I did not have any help from them, they are very passive.

创建者 Jonathan O

•Nov 15, 2018

This course was an exceptional installment to this Algorithms track. While the problems in this course required less creativity to answer than did those of the antecedent courses, they did test the student's ability to logically, cleanly, and efficiently apply the algorithms and ideas presented in lecture. As always, the instruction was stellar and every piece of pertinent information for answering all problems was included in the instructions. Excellent course.

创建者 Andrey K

•Nov 16, 2018

The course itself is wonderful. I liked the challenges provided in this a lot. The information is provided in very short, clear and full enough manner (all claims are proved and proved are great and very clean). There was only one thing that disappointed me a bit: on the last week I couldn't find the tasks description and had to download it somewhere from the Internet thankfully the forum's students.

创建者 Priyansh B

•Oct 10, 2018

This course took a bit more time than previous courses of the specialisation. It taught me everything about basics of algorithms. The last week was optional but it was the best, toughest and the best week of the course. It taught about fast traversal of graph and that concept of contraction hierchies was awesome and mind messing too.

创建者 MD A H Z

•Oct 28, 2018

This was a great journey. In this journey I learnt a lot. This is best course ever.

创建者 Jan F

•Oct 7, 2018

The forums are dead and no support is provided by the instructors. They're just pocketing our money and doing bugger all.

Besides that, it is a well-designed course with some easy and some more challenging assignments.

创建者 Jasvin M

•Jul 7, 2020

I had learned quite a bit about graphs in my academics but that was mostly conceptual and didn't focus much on the implementation aspects. This course helped me actually implement various algorithms and concepts related to graphs and at the same time gave me lots of new insights and understandings into why certain things are the way they are with proofs given by the Instructors which is something I quite like about these HSE and UC San Diego courses, the lengths they go to prove every statement/lemma. Every professor explained concepts in a clear and concise way which not gonna lie was quite a problem in previous courses in this Specialization (I'm looking at you David Kane). Also if you are planning to take this course, I'll recommend you take Data Structures (for implementing Priority Queues using Heaps and also for the Disjoint Sets data structure), it certainly helped me!

创建者 Greg G

•Feb 1, 2020

An incredibly strong course with a lot of potential if you're willing to look deeper.

It's well put together - as a baseline you will understand basic graph search and pathfinding concepts. (The homeworks are moderately challenging.) Moreover, you can watch some optional videos for additional proofs, and there's a whole module dedicated to advanced pathfinding algorithms.

Take time to make notes, and watch videos again if needed. Sometimes you'll need to stop and think about what Michael just explained, but fortunately the slides are really good and the proofs are detailed.

The extra material really is advanced, it contains pathfinding algorithms that have been developed only in the last few years! Fortunately for that, the assignments are optional because solutions are rather complex and there's little guidance. But if you're interested, it may be worth a shot!

创建者 Uladzislau N

•Jun 14, 2018

Awesome course that gives an introduction to basic and some advanced graph algorithms. Really good explanations and very useful and, I believe, commonly used graph algorithms. I really liked the way problems were set. First, you have a high level overview of the problem, like say you need to find cheapest flight among some cities. And, then, you have the mathematical formulation of the problem.I'd definitely recommend this course to anybody who is not familiar with graph data structure and algorithms yet. Content is as good as two previous courses from specialization. Thank you instructors and Coursera for putting it all together!

创建者 Tushar G

•Aug 8, 2016

This review is based on the last three courses that I have undertaken in the Data Structure and Algorithms Specialization.

While running our tests the output does provide the time and memory used for running our algorithms. I think it would also be instructive to see the running time of the best implementation in the particular language and the best time achieved ever by a student in such a course. It would provide us with an additional motivation to think about better and efficient implementations.

Note: I do understand that running times might not always be an exact reflection of the actual time the algorithm takes.

创建者 Kishor K P

•Mar 15, 2018

exceptional very nice course. But we need to religiously follow the videos and materials

创建者 JIA N

•Mar 18, 2018

The lecturers could have done a better job in presenting the contents. For some of them, the tone is always monotonous. Also regarding the Bellman Ford's algorithm, it would be more helpful if the lecturer discusses the impact of the sequence of the edges to the running time.

创建者 Rudolf Z

•Nov 7, 2018

Great explanation of basic graph algorithms (week 1-5). However content of week 6 gives more questions than answers and should be improved.

创建者 Oleksandr S

•Jun 9, 2019

The course is good, assessments were challenging. However, I did not like using of USSR map in second week lectures.

创建者 To P H

•Sep 20, 2018

Need more graphical illustrations with colors when explaiing complex details

创建者 Akshive P

•Oct 4, 2018

Great Course to learn fundamentals of Graph Algorithms.

创建者 Henry R

•Jul 4, 2018

The video lectures are bdaly illustrated. It is very hard to follow. It is better to read books.

创建者 Andrey T

•Jul 27, 2016

The course is too shallow - amount of topics discusses is quite small. Practice tasks are boring - implement pseudocode given in lectures. No quizzes. In particular you can see that it is a bad course, if you compare it to the previous 2 courses in the specialization. I'm agree with other people posting in forums about that.

Wasted time, could spend that month more productively. Not going to continue passing other future courses.

创建者 Vivekanand G N

•Aug 18, 2016

The teaching quality is very average and mediocre at best.

The assignments are merely implementation of lectures .

The Stanford and Princeton courses on Algorithms are better courses to take for one to pursue a serious study of Algorithms.

创建者 surya

•Nov 6, 2018

There is no pdf for week five exercise.

创建者 Navid

•Oct 25, 2019

First 2 weeks was good. But after week2, OMG. don't waste your time and money. Its like the instructor is reading from a book. it was such waste of time and money.

创建者 Zsolt S

•Aug 16, 2016

Another great course! I started this one right after completing data structures and found it particularly interesting as graph problems seem to pop up everywhere in our modern, networked world.

Compared to the data structures course this definitely felt easier, however this may be down to me being more comfortable with my chosen language as well as with the overall process and structure of the assignments. Nevertheless there are some fun problems here that have connections to problems in the "real" world.

As a side note, I recommend doing the data structures course before this one, as some of the algorithms discussed rely on data structures, so understanding them and better yet having them implemented already will help a lot with focusing on the new material and passing the assignments.

Thanks again all the teachers for the great course!

创建者 Christopher B

•Feb 20, 2017

This was a really excellent little unit. I really appreciate going over all the algorithms in this course and I have a better understanding of how we explore graphs to find valuable information. I really enjoyed the challenge optional week as well. I felt less stress to complete it since it was optional, but it was still very challenging and I couldn't complete it (even though I really tried). I feel the challenge optional week may need to be made slightly easier though to give people who are normally busy to get a chance to try and solve the problems in it (it did eat up a lot of my spare time). Excellent work, great course (wish I knew contraction hierarchies better, been reading some papers but still unsure of how to best implement it).

创建者 Abhijith A

•Dec 29, 2020

It was fantastic. Lectures were great and assignments were enlightening. While I was tempted to remove a star due to poor (actually 0) response on the Forum to any of the questions I have asked, I realized that most of the questions I had were already answered before by someone else on the forum. However, I do suggest the team to please make it a point to respond to questions on the Forum. It seems like it is dead for now, and you might as well remove the Forum and archive the older content to something like FAQ.

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