Search Results for author: Lequn Chen

Found 13 papers, 3 papers with code

Fine-Tuning Vision-Language Model for Automated Engineering Drawing Information Extraction

no code implementations6 Nov 2024 Muhammad Tayyab Khan, Lequn Chen, Ye Han Ng, Wenhe Feng, Nicholas Yew Jin Tan, Seung Ki Moon

These findings highlight the effectiveness of fine-tuning smaller, open-source VLMs like Florence-2, offering a practical and efficient solution for automated GD&T extraction to support downstream manufacturing tasks.

Hallucination Language Modeling +1

Leveraging Vision-Language Models for Manufacturing Feature Recognition in CAD Designs

no code implementations5 Nov 2024 Muhammad Tayyab Khan, Lequn Chen, Ye Han Ng, Wenhe Feng, Nicholas Yew Jin Tan, Seung Ki Moon

To address these challenges, this study investigates vision-language models (VLMs) for automating the recognition of a wide range of manufacturing features in CAD designs without the need for extensive training datasets or predefined rules.

Few-Shot Learning Hallucination +1

Automatic Feature Recognition and Dimensional Attributes Extraction From CAD Models for Hybrid Additive-Subtractive Manufacturing

no code implementations13 Aug 2024 Muhammad Tayyab Khan, Wenhe Feng, Lequn Chen, Ye Han Ng, Nicholas Yew Jin Tan, Seung Ki Moon

Therefore, the proposed methodology enhances the integration of CAD, CAPP, and CAM within hybrid manufacturing by providing precise feature recognition and dimension extraction.

Audio-visual cross-modality knowledge transfer for machine learning-based in-situ monitoring in laser additive manufacturing

no code implementations9 Aug 2024 Jiarui Xie, Mutahar Safdar, Lequn Chen, Seung Ki Moon, Yaoyao Fiona Zhao

This paper introduces a cross-modality knowledge transfer (CMKT) methodology for LAM in-situ monitoring, which transfers knowledge from a source modality to a target modality.

Anomaly Detection Defect Detection +2

In-situ process monitoring and adaptive quality enhancement in laser additive manufacturing: a critical review

no code implementations21 Apr 2024 Lequn Chen, Guijun Bi, Xiling Yao, Jinlong Su, Chaolin Tan, Wenhe Feng, Michalis Benakis, Youxiang Chew, Seung Ki Moon

Future directions are proposed, with an emphasis on multimodal sensor fusion for multiscale defect prediction and fault diagnosis, ultimately enabling self-adaptation in LAM processes.

Benchmarking Decision Making +3

Atom: Low-bit Quantization for Efficient and Accurate LLM Serving

1 code implementation29 Oct 2023 Yilong Zhao, Chien-Yu Lin, Kan Zhu, Zihao Ye, Lequn Chen, Size Zheng, Luis Ceze, Arvind Krishnamurthy, Tianqi Chen, Baris Kasikci

To maximize LLMs' serving throughput, we introduce Atom, a low-bit quantization method that achieves high throughput improvements with negligible accuracy loss.

Quantization Sentiment Analysis

Punica: Multi-Tenant LoRA Serving

1 code implementation28 Oct 2023 Lequn Chen, Zihao Ye, Yongji Wu, Danyang Zhuo, Luis Ceze, Arvind Krishnamurthy

Our scheduler consolidates multi-tenant LoRA serving workloads in a shared GPU cluster.

Symphony: Optimized DNN Model Serving using Deferred Batch Scheduling

no code implementations14 Aug 2023 Lequn Chen, Weixin Deng, Anirudh Canumalla, Yu Xin, Danyang Zhuo, Matthai Philipose, Arvind Krishnamurthy

However, existing model serving systems cannot achieve adequate batch sizes while meeting latency objectives as these systems eagerly dispatch requests to accelerators to minimize the accelerator idle time.

Scheduling

Multimodal sensor fusion for real-time location-dependent defect detection in laser-directed energy deposition

no code implementations23 May 2023 Lequn Chen, Xiling Yao, Wenhe Feng, Youxiang Chew, Seung Ki Moon

Traditional in-situ monitoring approach utilizes a single sensor (i. e., acoustic, visual, or thermal sensor) to capture the complex process dynamic behaviors, which is insufficient for defect detection with high accuracy and robustness.

Defect Detection Sensor Fusion

Multisensor fusion-based digital twin in additive manufacturing for in-situ quality monitoring and defect correction

no code implementations12 Apr 2023 Lequn Chen, Xiling Yao, Kui Liu, Chaolin Tan, Seung Ki Moon

Early detection and correction of defects are critical in additive manufacturing (AM) to avoid build failures.

ADARES: Adaptive Resource Management for Virtual Machines

no code implementations5 Dec 2018 Ignacio Cano, Lequn Chen, Pedro Fonseca, Tianqi Chen, Chern Cheah, Karan Gupta, Ramesh Chandra, Arvind Krishnamurthy

Our large-scale analysis confirms that VMs are often misconfigured, either overprovisioned or underprovisioned, and that this problem is pervasive across a wide range of private clusters.

Management Multi-Armed Bandits +1

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