Lei Zhang

Publications : 145
Aldex : 100
H-index : 11
Citations : 676

CausalMTA: Eliminating the User Confounding Bias for Causal Multi-touch Attribution

Di Yao, Jingping Bi et 4 al.

Dec 21, 2021 in Arxiv
Multi-touch attribution (MTA), aiming to estimate the contribution of each advertisement touchpoint in conversion journeys, is essential for budget allocation and automatically advertising. Existing methods first train a model to predict the conversion probability of the advertisement journeys with historical data and calculate the attribution of each touchpoint using counterfactual predictions. A...

Learning High-quality Proposals for Acne Detection

Jianwei Zhang, Dan Du et 6 al.

Jul 8, 2022 in Arxiv
Acne detection is crucial for interpretative diagnosis and precise treatment of skin disease. The arbitrary boundary and small size of acne lesions lead to a significant number of poor-quality proposals in two-stage detection. In this paper, we propose a novel head structure for Region Proposal Network to improve the proposals' quality in two ways. At first, a Spatial Aware Double Head(SADH) struc...