Anirudh Srinivasan Chakravarthy Shuai Kyle Zheng Xin Huang Sachithra Hemachandra Xiao Zhang Yuning Chai Zhao Chen PROFIT: A Specialized Optimizer for Deep Fine Tuning. 2024 abs/2412.01930 CoRR https://doi.org/10.48550/arXiv.2412.01930 db/journals/corr/corr2412.html#abs-2412-01930 streams/journals/corr