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Yubo Zhang

16 accepted papers

2026

Boosting Document Parsing Efficiency and Performance with Coarse-to-Fine Visual Processing

CVPR 2026

Document parsing is a fine-grained task where image resolution significantly impacts performance. While advanced research leveraging vision-language models benefits from high-resolution input to boost model performance, this often leads to a quadratic increase in the number of vision tokens and sign

Cited by 2SourcecodeScholar
2026

PP-OCRv5: A Specialized 5M-Parameter Model Rivaling Billion-Parameter Vision-Language Models on OCR Tasks

CVPR 2026

The advent of "OCR 2.0" and large-scale vision-language models (VLMs) has set new benchmarks in text recogni- tion. However, these unified architectures often come with significant computational demands, challenges in precise text localization within complex layouts, and a propen- sity for textual h

Cited by 0SourcecodeScholar
2025

Fair Clustering in the Sliding Window Model

ICLR 2025spotlight

We study streaming algorithms for proportionally fair clustering, a notion originally suggested by Chierichetti et al. (2017), in the sliding window model. We show that although there exist efficient streaming algorithms in the insertion-only model, surprisingly no algorithm can achieve finite ratio…

Cited by 0SourcePDFScholar
2025

Neural Tangent Knowledge Distillation for Optical Convolutional Networks

NeurIPS 2025poster

Hybrid Optical Neural Networks (ONNs, typically consisting of an optical frontend and a digital backend) offer an energy-efficient alternative to fully digital deep networks for real-time, power-constrained systems. However, their adoption is limited by two main challenges: the accuracy gap compared…

Cited by 0SourceScholar
2025

RAG+: Enhancing Retrieval-Augmented Generation with Application-Aware Reasoning

EMNLP 2025

The integration of external knowledge through Retrieval-Augmented Generation (RAG) has become foundational in enhancing large language models (LLMs) for knowledge-intensive tasks. However, existing RAG paradigms often overlook the cognitive step of applying knowledge, leaving a gap between retrieved

Cited by 0SourcePDFScholar
2025

Re-TASK: Revisiting LLM Tasks from Capability, Skill, and Knowledge Perspectives

ACL 2025finding

The Chain-of-Thought (CoT) paradigm has become a pivotal method for solving complex problems with large language models (LLMs). However, its application to domain-specific tasks remains challenging, as LLMs often fail to decompose tasks accurately or execute subtasks effectively. This paper introduc…

2025

Relative Error Fair Clustering in the Weak-Strong Oracle Model

ICML 2025poster

We study fair clustering problems in a setting where distance information is obtained from two sources: a strong oracle providing exact distances, but at a high cost, and a weak oracle providing potentially inaccurate distance estimates at a low cost. The goal is to produce a near-optimal fair clust…

Cited by 0SourcePDFScholar
2024

Dynamic Facility Location in High Dimensional Euclidean Spaces

ICML 2024spotlight

We study the facility location problem in the dynamic setting, where the goal is to efficiently process an intermixed sequence of point insertions and deletions while maintaining a high quality and stable solution. Although the problem has been studied in the context of general metrics and low-dimen…

Cited by 3SourcePDFScholar
2022

Doctor Recommendation in Online Health Forums via Expertise Learning

ACL 2022long

Huge volumes of patient queries are daily generated on online health forums, rendering manual doctor allocation a labor-intensive task. To better help patients, this paper studies a novel task of doctor recommendation to enable automatic pairing of a patient to a doctor with relevant expertise. Whil…

2022

Online Facility Location with Predictions

ICLR 2022poster

We provide nearly optimal algorithms for online facility location (OFL) with predictions. In OFL, $n$ demand points arrive in order and the algorithm must irrevocably assign each demand point to an open facility upon its arrival. The objective is to minimize the total connection costs from demand po…

Cited by 33SourcePDFScholar
2021

#HowYouTagTweets: Learning User Hashtagging Preferences via Personalized Topic Attention

EMNLP 2021main

Millions of hashtags are created on social media every day to cross-refer messages concerning similar topics. To help people find the topics they want to discuss, this paper characterizes a user’s hashtagging preferences via predicting how likely they will post with a hashtag. It is hypothesized tha…

2021

Discovering Hidden Physics Behind Transport Dynamics

CVPR 2021poster

Transport processes are ubiquitous. They are, for example, at the heart of optical flow approaches; or of perfusion imaging, where blood transport is assessed, most commonly by injecting a tracer. An advection-diffusion equation is widely used to describe these transport phenomena. Our goal is estim…

Cited by 12PDFScholar