@InProceedings{dinitz_et_al:LIPIcs.APPROX-RANDOM.2015.738, author = {Dinitz, Michael and Krauthgamer, Robert and Wagner, Tal}, title = {{Towards Resistance Sparsifiers}}, booktitle = {Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2015)}, pages = {738--755}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-89-7}, ISSN = {1868-8969}, year = {2015}, volume = {40}, editor = {Garg, Naveen and Jansen, Klaus and Rao, Anup and Rolim, Jos\'{e} D. P.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.APPROX-RANDOM.2015.738}, URN = {urn:nbn:de:0030-drops-53334}, doi = {10.4230/LIPIcs.APPROX-RANDOM.2015.738}, annote = {Keywords: edge sparsification, spectral sparsifier, graph expansion, effective resistance, commute time} }