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Zhiyuan Shi

3 accepted papers

2025

Sundial: A Family of Highly Capable Time Series Foundation Models

ICML 2025oral

We introduce Sundial, a family of native, flexible, and scalable time series foundation models. To predict the next-patch's distribution, we propose a TimeFlow Loss based on flow-matching, which facilitates native pre-training of Transformers on continuous-valued time series without discrete tokeniz…

2017

Learning and Refining of Privileged Information-Based RNNs for Action Recognition From Depth Sequences

CVPR 2017poster

Existing RNN-based approaches for action recognition from depth sequences require either skeleton joints or hand-crafted depth features as inputs. An end-to-end manner, mapping from raw depth maps to action classes, is non-trivial to design due to the fact that: 1) single channel map lacks texture t…

Cited by 102PDFScholar
2015

Transferring a Semantic Representation for Person Re-Identification and Search

CVPR 2015poster

Learning semantic attributes for person re-identification and description-based person search has gained increasing interest due to attributes' great potential as a pose and view-invariant representation. However, existing attribute-centric approaches have thus far underperformed state-of-the-art c…

Cited by 264SourcePDFScholar