@article{zhang_mishne_chi_2021, title={Multi-scale affinities with missing data: Estimation and applications}, ISSN={["1932-1872"]}, url={https://doi.org/10.1002/sam.11561}, DOI={10.1002/sam.11561}, abstractNote={Many machine learning algorithms depend on weights that quantify row and column similarities of a data matrix. The choice of weights can dramatically impact the effectiveness of the algorithm. Nonetheless, the problem of choosing weights has arguably not been given enough study. When a data matrix is completely observed, Gaussian kernel affinities can be used to quantify the local similarity between pairs of rows and pairs of columns. Computing weights in the presence of missing data, however, becomes challenging. In this paper, we propose a new method to construct row and column affinities even when data are missing by building off a co‐clustering technique. This method takes advantage of solving the optimization problem for multiple pairs of cost parameters and filling in the missing values with increasingly smooth estimates. It exploits the coupled similarity structure among both the rows and columns of a data matrix. We show these affinities can be used to perform tasks such as data imputation, clustering, and matrix completion on graphs.}, journal={STATISTICAL ANALYSIS AND DATA MINING}, author={Zhang, Min and Mishne, Gal and Chi, Eric C.}, year={2021}, month={Nov} } @inproceedings{hubbe_zhang_2005, title={Recovered kraft fibers and wet-end dry-strength polymers}, booktitle={Proceedings, TAPPI Practical Papermakers Conference}, publisher={Atlanta: TAPPI Press}, author={Hubbe, M. A. and Zhang, M.}, year={2005} } @article{zhang_hubbe_venditti_heitmann_2004, title={Effects of sugar addition before drying on the wet flexibility of redispersed kraft fibres}, volume={30}, number={1}, journal={Journal of Pulp and Paper Science}, author={Zhang, M. and Hubbe, M. A. and Venditti, R. A. and Heitmann, J. A.}, year={2004}, pages={29–34} } @article{zhang_hubbe_venditti_heitmann_2004, title={Refining to overcome effects of drying unbleached Kraft fibers in the presence or absence of sugar}, volume={13}, number={2}, journal={Progress in Paper Recycling}, author={Zhang, M. and Hubbe, M. A. and Venditti, R. A. and Heitmann, J. A.}, year={2004}, pages={5–12} } @article{hubbe_venditti_barbour_zhang_2003, title={Changes to unbleached kraft fibers due to drying and recycling}, volume={12}, number={3}, journal={Progress in Paper Recycling}, author={Hubbe, M.A. and Venditti, R.A. and Barbour, R.L. and Zhang, M.}, year={2003}, pages={11–20} } @article{hubbe_jackson_zhang_2003, title={Fiber surface saturation as a strategy to optimize dual-polymer dry strength treatment}, volume={2}, number={11}, journal={TAPPI Journal}, author={Hubbe, M. A. and Jackson, T. L. and Zhang, M.}, year={2003}, pages={12-} } @article{zhang_hubbe_venditti_heitmann_2002, title={Can recycled kraft fibres benefit from chemical addition before they are first dried?}, volume={55}, number={2}, journal={Appita Journal}, author={Zhang, M. and Hubbe, M. A. and Venditti, R. A. and Heitmann, J. A.}, year={2002}, pages={135–144} } @inproceedings{zhang_hubbe_venditti_heitmann_2001, title={Effect of chemical pretreatments of never-dried pulp on the strength of recycled linerboard}, booktitle={Proceedings, TAPPI Papermakers Conference}, publisher={TAPPI}, author={Zhang, M. and Hubbe, M. A. and Venditti, R. A. and Heitmann, J. A.}, year={2001} } @inproceedings{zhang_hubbe_venditti_heitmann_2000, title={Loss of bonding strength dye to drying and repulping of Kraft fibers: Effects of chemical additives}, ISBN={9570258969}, booktitle={Proceedings, International Symposium on Environmentally Friendly and Emerging Technologies for a Sustainable Pulp and Paper Industry, Taipei, Taiwan, April 25-27, 2000}, publisher={Taipei, Taiwan: Taiwan Forestry Research Institute; Taiwan Technical Association of Pulp and Paper Industry}, author={Zhang, M. and Hubbe, M. A. and Venditti, R. A. and Heitmann, J. A.}, editor={Su, Y.-C. and E. I. C. WangEditors}, year={2000} }