HVTSurv: Hierarchical Vision Transformer for Patient-Level Survival Prediction from Whole Slide Image

1 code implementation • 30 Jun 2023 • Zhuchen Shao, Yang Chen, Hao Bian, Jian Zhang, Guojun Liu, Yongbing Zhang

Many studies adopt random sampling pre-processing strategy and WSI-level aggregation models, which inevitably lose critical prognostic information in the patient-level bag.

Multiple Instance Learning Survival Prediction +1

AMCAD: Adaptive Mixed-Curvature Representation based Advertisement Retrieval System

no code implementations • 28 Mar 2022 • Zhirong Xu, Shiyang Wen, Junshan Wang, Guojun Liu, Liang Wang, Zhi Yang, Lei Ding, Yan Zhang, Di Zhang, Jian Xu, Bo Zheng

Moreover, to deploy AMCAD in Taobao, one of the largest ecommerce platforms with hundreds of million users, we design an efficient two-layer online retrieval framework for the task of graph based advertisement retrieval.

Graph Embedding Information Retrieval +1

Asymptotically Unbiased Estimation for Delayed Feedback Modeling via Label Correction

1 code implementation • 14 Feb 2022 • Yu Chen, Jiaqi Jin, Hui Zhao, Pengjie Wang, Guojun Liu, Jian Xu, Bo Zheng

Moreover, to estimate CVR upon the freshly observed but biased distribution with fake negatives, the importance sampling is widely used to reduce the distribution bias.

RPM-Oriented Query Rewriting Framework for E-commerce Keyword-Based Sponsored Search

no code implementations • 28 Oct 2019 • Xiuying Chen, Daorui Xiao, Shen Gao, Guojun Liu, Wei. Lin, Bo Zheng, Dongyan Zhao, Rui Yan

Sponsored search optimizes revenue and relevance, which is estimated by Revenue Per Mille (RPM).

EENMF: An End-to-End Neural Matching Framework for E-Commerce Sponsored Search

no code implementations • 4 Dec 2018 • Wenjin Wu, Guojun Liu, Hui Ye, Chenshuang Zhang, Tianshu Wu, Daorui Xiao, Wei. Lin, Xiaoyu Zhu

In the real traffic of a large-scale e-commerce sponsored search, the proposed approach significantly outperforms the baseline.

Retrieval