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Chenghao Liu

4 papers hereh-index 356 citations6 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author2
  • last author1

Across the 3 of 4 papers where every author was matched, so the position is known.

fields
  • cs.LG2
  • cs.AI1
  • cs.RO1
same name
  • Chenghao Liu — 10 papers, h 4
  • Chenghao Liu — 9 papers, h 11
  • Chenghao Liu — 6 papers, h 2
  • Chenghao Liu — 5 papers, h 6
  • Chenghao Liu — 5 papers, h 2
  • Chenghao Liu — 1 paper, h 2

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

collaborators

4 papers

cs.AI2026

Generative Retrieval via Diffusion Transformer with Metric-Ordered Sequence Training and Hybrid-Policy Preference Optimization

Chenghao Liu, Yu Zhang, Zhongtao Jiang +7

Embedding-based retrieval ranks items by their similarity to a query in a shared vector space and usually aims to return the highest-scoring items. In many production settings this…

cs.RO2026

What Frozen VLAs Already Know About Success: A Probing Study of Value-Like Structure in Foundation Robot Policies

Jiachen Zhang, Junnan Nie, Junyi Lao +4

Vision--language--action (VLA) policies are trained to imitate actions; their loss never asks them to estimate reward, progress, or future success. Their frozen representations nev…

cs.LG2026

TSFMAudit: Data Contamination Auditing in Forecasting Time Series Foundation Models

Hongkai Li, Shifeng Xie, Lefei Shen +7

Time series foundation models (TSFMs) are increasingly pretrained on large corpora, raising concerns that evaluation datasets may have been exposed during pretraining and thus yiel…

cs.LG2025

Multi-Scale Finetuning for Encoder-based Time Series Foundation Models

Zhongzheng Qiao, Chenghao Liu, Yiming Zhang +6

Time series foundation models (TSFMs) demonstrate impressive zero-shot performance for time series forecasting. However, an important yet underexplored challenge is how to effectiv…

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