1. Approximation Algorithms
k-Center

2. Definition ≤
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3. 2-Approx
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6. Analysis
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7. Obtain Better Ratio?
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8. Weighted k-Center
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9. Notations
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10. Algorithm
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11. Algorithm 2
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12. Analysis Theorem: Alg 2 has an approx ratio of 3. My T. Thai

13. Multiway Cut and k-Cut
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14. Definition
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15. Example
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16. Can you prove it???
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17. Approximation
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18. Analysis
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19. Minimum k-cut Problem
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20. Example
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21. Construct a Gomory-Hu Tree
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23. Properties of Gomory-Hu Tree wrt k-cut
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24. Approximation Algorithm
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25. Analysis
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