Abstract
We present in this paper some of the recent techniques and methods for proving best up to now explicit approximation hardness bounds for metric symmetric and asymmetric Traveling Salesman Problem (TSP) as well as related problems of Shortest Superstring and Maximum Compression. We attempt to shed some light on the underlying paradigms and insights which lead to the recent improvements as well as some inherent obstacles for further progress on those problems.
M. Karpinski—Research supported by DFG grants and the Hausdorff grant EXC59-1.
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References
Approximation Taxonomy of Metric TSP (2015). http://theory.cs.uni-bonn.de/info5/tsp
Asadpour, A., Goemans, M., Mądry, A., Gharan, S., Saberi, A.: An \(O(\log n/ \log \log n)\)-approximation algorithm for the asymmetric traveling salesman problem. In: Proceedings of the 21st SODA, pp. 379–389 (2010)
Berman, P., Karpinski, M.: On some tighter inapproximability results. In: Wiedermann, J., Van Emde Boas, P., Nielsen, M. (eds.) ICALP 1999. LNCS, vol. 1644, p. 200. Springer, Heidelberg (1999)
Berman, P., Karpinski, M.: Efficient amplifiers and bounded degree optimization. ECCC TR01-053 (2001)
Berman, P., Karpinski, M.: Improved approximation lower bounds on small occurrence optimization. ECCC TR03-008 (2003)
Berman, P., Karpinski, M.: 8/7-approximation algorithm for \((1, 2)\)-TSP. In: Proceedings of the 17th SODA, pp. 641–648 (2006)
Boyd, S., Sitters, R., van der Ster, S., Stougie, L.: TSP on cubic and subcubic graphs. In: Günlük, O., Woeginger, G.J. (eds.) IPCO 2011. LNCS, vol. 6655, pp. 65–77. Springer, Heidelberg (2011)
Christofides, N.: Worst-Case Analysis of a New Heuristic for the Traveling Salesman Problem, Technical Report CS-93-13. Carnegie Mellon University, Pittsburgh (1976)
Engebretsen, L.: An explicit lower bound for TSP with distances one and two. Algorithmica 35, 301–318 (2003)
Engebretsen, L., Karpinski, M.: TSP with bounded metrics. J. Comput. Syst. Sci. 72, 509–546 (2006)
Håstad, J.: Some optimal inapproximability results. J. ACM 48, 798–859 (2001)
Kaplan, H., Lewenstein, M., Shafrir, N., Sviridenko, M.: Approximation algorithms for asymmetric TSP by decomposing directed regular multigraphs. J. ACM 52, 602–626 (2005)
Karpinski, M.: Approximating bounded degree instances of NP-hard problems. In: Freivalds, R. (ed.) FCT 2001. LNCS, vol. 2138, p. 24. Springer, Heidelberg (2001)
Karpinski, M., Lampis, M., Schmied, R.: New inapproximability bounds for TSP. In: Cai, L., Cheng, S.-W., Lam, T.-W. (eds.) Algorithms and Computation. LNCS, vol. 8283, pp. 568–578. Springer, Heidelberg (2013)
Karpinski, M., Schmied, R.: On approximation lower bounds for TSP with bounded metrics. CoRR abs/1201.5821 (2012)
Karpinski, M., Schmied, R.: Improved lower bounds for the shortest superstring and related problems. In: Proceedings 19th CATS, CRPIT 141, pp. 27–36 (2013)
Karpinski, M., Schmied, R.: Approximation hardness of graphic TSP on cubic graphs, CoRR abs/1304.6800, 2013. Journal version RAIRO-Operations Research 49, pp. 651–668 (2015)
Lampis, M.: Improved inapproximability for TSP. In: Gupta, A., Jansen, K., Rolim, J., Servedio, R. (eds.) APPROX 2012 and RANDOM 2012. LNCS, vol. 7408, pp. 243–253. Springer, Heidelberg (2012)
Mömke, T., Svensson, O.: Approximating graphic TSP by matchings. In: Proceedings of the IEEE 52nd FOCS, pp. 560–569 (2011)
Papadimitriou, C., Vempala, S.: On the approximability of the traveling salesman problem. Combinatorica 26, 101–120 (2006)
Papadimitriou, C., Yannakakis, M.: The traveling salesman problem with distances one and two. Math. Oper. Res. 18, 1–11 (1993)
Sebő, A., Vygen, J.: Shorter tours by nicer ears: 7/5-approximation for the Graph-TSP, 3/2 for the Path Version, and 4/3 for two-edge-connected subgraphs. Combinatorica 34, 1–34 (2014)
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Karpinski, M. (2015). Towards Better Inapproximability Bounds for TSP: A Challenge of Global Dependencies. In: Kosowski, A., Walukiewicz, I. (eds) Fundamentals of Computation Theory. FCT 2015. Lecture Notes in Computer Science(), vol 9210. Springer, Cham. https://doi.org/10.1007/978-3-319-22177-9_1
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