近似算法讨论班 (Fall 2011): Difference between revisions

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* Vijay Vazirani. ''Approximation Algorithms''. Springer, 2004.
* Vijay Vazirani. ''Approximation Algorithms''. Springer, 2004.
* David Williamson and David Shmoys. ''The Design of Approximation Algorithms''. Cambridge Univ Press, 2011.
* David Williamson and David Shmoys. ''The Design of Approximation Algorithms''. Cambridge Univ Press, 2011.
* Michel Goemans. [http://www-math.mit.edu/~goemans/notes-lp.ps ''Linear Programming'']. Lecture notes of ''Advanced Algorithms'' class at MIT.
* Venkatesan Guruswami and Ryan O'Donnell. [http://www.cs.washington.edu/education/courses/cse533/05au/ ''The PCP Theorem and Hardness of Approximation''].


= Schedule =
= Schedule =
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|bgcolor="#A7C1F2"|Dates||bgcolor="#A7C1F2"|Speakers||bgcolor="#A7C1F2"|Topics||bgcolor="#A7C1F2"|Readings
|bgcolor="#A7C1F2" align="center"|'''Dates'''
|bgcolor="#A7C1F2" align="center"|'''Speakers'''
|bgcolor="#A7C1F2" align="center"|'''Topics'''
|bgcolor="#A7C1F2" align="center"|'''Readings'''
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|9.26  
|9.26  
Line 41: Line 46:
|11.17  
|11.17  
|align="center"|张驰豪<br>（上海交通大学）|| The primal-dual method. || Chap. 7.1-7.4 of<br> Williamson-Shmoys.
|align="center"|张驰豪<br>（上海交通大学）|| The primal-dual method. || Chap. 7.1-7.4 of<br> Williamson-Shmoys.
|-
|11.24
|align="center"|朱小虎<br>张驰豪<br>（上海交通大学）|| The Steiner tree problem. ||
|-
|12.1
|align="center"|詹宇森<br>张驰豪<br>（上海交通大学）|| Prize-collection Steiner tree; rounding; derandomization. ||
|-
|12.8
|align="center"|陈嘉|| Algorithmic Game Theory.<br>Strategic games; mechanism design; combinatorial auction; Vickrey auction; VCG auction. ||
|-
|12.15
|align="center"|尹一通|| Approximate counting; correlation decay; spin systems. ||
|}
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Latest revision as of 07:53, 28 December 2011

Syllabus

  • Time: every Thursday, 6:30pm.
  • Place: CS building, 228.
  • Organizer: 尹一通
  • office: CS building, 804
  • email: yitong.yin@gmail.com

Reference materials

  • Vijay Vazirani. Approximation Algorithms. Springer, 2004.
  • David Williamson and David Shmoys. The Design of Approximation Algorithms. Cambridge Univ Press, 2011.
  • Michel Goemans. Linear Programming. Lecture notes of Advanced Algorithms class at MIT.
  • Venkatesan Guruswami and Ryan O'Donnell. The PCP Theorem and Hardness of Approximation.

Schedule

Dates Speakers Topics Readings
9.26 张驰豪
（上海交通大学）		 Introduction to approximation algorithms.
Approximation ratio; set cover; rounding an LP; LP duality; greedy algorithms.		 Chap. 1 of
Williamson-Shmoys.
10.8 张驰豪
（上海交通大学）		 Greedy algorithms and local search.
Scheduling with deadlines; [math]\displaystyle{ k }[/math]-center; minimize makespan; metric TSP; min-degree spanning tree.		 Chap. 2.1-2.4 of
Williamson-Shmoys.
10.13 詹宇森
蒋炎岩
尹一通		 Local search (cont.). Scale and round.
Min-degree spanning tree; local search; potential analysis;
Knapsack; dynamic programming; pseudo-polynomial time; scale and round; FPTAS.		 Chap. 2.6, 3.1 of
Williamson-Shmoys.
10.20 老师出差，暂停一次。
10.27 陈嘉 Linear Programming.
Linear Programming; the simplex method; duality; strong duality theorem; von Neumann's minmax theorem. 		[slides]
Geomans' notes on LP
11.4 周源
(Carnegie Mellon University)		 Approximation (and inapproximability) of MAX-CUT.
MAX-CUT; the probabilistic method; semi-definite programming (SDP); rounding SDP;
inapproximability; gap-reduction; probabilistically checkable proofs (PCP); the PCP theorem;
label cover game; parallel repetition theorem; unique label cover game; the unique games conjecture (UGC);
Boolean function; Fourier transformation; Parseval's identity; influence; noise operator; stability;
long code reduction; majority is the stablest (MIS); 		Chap. 6.1, 6.2 of
Williamson-Shmoys.
PCP lecture at UW
by Guruswami and O'Donnell
11.10 张驰豪
（上海交通大学）
尹一通		 Scale and round (cont.). Deterministic rounding of LP.
Bin packing; first-fit; exhaustive search; polynomial-time approximation scheme (PTAS).
Scheduling on a single machine; completion time; preemptive; shortest remaining processing time (SRPT);
the ellipsoid algorithm; separation oracle.		 Chap. 3.3, 4.1-4.3 of
Williamson-Shmoys.
11.17 张驰豪
（上海交通大学）		 The primal-dual method. Chap. 7.1-7.4 of
Williamson-Shmoys.
11.24 朱小虎
张驰豪
（上海交通大学）		 The Steiner tree problem.
12.1 詹宇森
张驰豪
（上海交通大学）		 Prize-collection Steiner tree; rounding; derandomization.
12.8 陈嘉 Algorithmic Game Theory.
Strategic games; mechanism design; combinatorial auction; Vickrey auction; VCG auction.
12.15 尹一通 Approximate counting; correlation decay; spin systems.
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