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Cong Xie

12 accepted papers

2026

SketchAssist: A Practical Assistant for Semantic Edits and Precise Local Redrawing

CVPR 2026

Sketch editing requires jointly handling high-level semantic changes and precise local redrawing, a combination that is particularly challenging for sparse, style-sensitive line art. Unlike natural images, sketches rely on minimal visual cues, making it difficult for existing methods to reconcile gl

Cited by 0SourceScholar
2025

SerialGen: Personalized Image Generation by First Standardization Then Personalization

CVPR 2025poster

In this work, we are interested in achieving both high text controllability and whole-body appearance consistency in the generation of personalized human characters. We propose a novel framework, named SerialGen, which is a serial generation method consisting of two stages: first, a standardization…

Cited by 1SourcePDFScholar
2024

SDP4Bit: Toward 4-bit Communication Quantization in Sharded Data Parallelism for LLM Training

NeurIPS 2024poster

Recent years have witnessed a clear trend towards language models with an ever-increasing number of parameters, as well as the growing training overhead and memory usage. Distributed training, particularly through Sharded Data Parallelism (ShardedDP) which partitions optimizer states among workers,…

Cited by 2SourcePDFScholar
2022

SAPipe: Staleness-Aware Pipeline for Data Parallel DNN Training

NeurIPS 2022accept

Data parallelism across multiple machines is widely adopted for accelerating distributed deep learning, but it is hard to achieve linear speedup due to the heavy communication. In this paper, we propose SAPipe, a performant system that pushes the training speed of data parallelism to its fullest ext…

Cited by 16SourcePDFScholar
2021

Alternative Baselines for Low-Shot 3D Medical Image Segmentation—An Atlas Perspective

AAAI 2021technical

Low-shot (one/few-shot) segmentation has attracted increasing attention as it works well with limited annotation. State-of-the-art low-shot segmentation methods on natural images usually focus on implicit representation learning for each novel class, such as learning prototypes, deriving guidance fe…

Cited by 5SourcePDFScholar
2020

CSER: Communication-efficient SGD with Error Reset

NeurIPS 2020poster

The scalability of Distributed Stochastic Gradient Descent (SGD) is today limited by communication bottlenecks. We propose a novel SGD variant: \underline{C}ommunication-efficient \underline{S}GD with \underline{E}rror \underline{R}eset, or \underline{CSER}. The key idea in CSER is first a new techn…

Cited by 50SourcePDFScholar
2019

Fall of Empires: Breaking Byzantine-tolerant SGD by Inner Product Manipulation

UAI 2019poster

Recently, new defense techniques have been developed to tolerate Byzantine failures for distributed machine learning. The Byzantine model captures workers that behave arbitrarily, including malicious and compromised workers. In this paper, we break two prevailing Byzantine-tolerant techniques. Spe…

Cited by 329SourcePDFScholar
2019

Zeno: Distributed Stochastic Gradient Descent with Suspicion-based Fault-tolerance

ICML 2019oral

We present Zeno, a technique to make distributed machine learning, particularly Stochastic Gradient Descent (SGD), tolerant to an arbitrary number of faulty workers. Zeno generalizes previous results that assumed a majority of non-faulty nodes; we need assume only one non-faulty worker. Our key idea…