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Wei-Chen Liu

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Conference Aug 2026

Online Failure Detection for Robot Manipulation with Time-Aware Metrics and Efficient Models

Vision-Language-Action (VLA) models have recently achieved strong performance in robot manipulation, with promising generalization across diverse tasks and environments. However, long-horizon executions and unseen scenarios can still lead to failures, highlighting the need for online failure detection to enable timely...

Tian-Rui Ma, Min-Hao Fan, Wei-Chen Liu · 0 citations
#machine learning Preprint Oct 2026

SlimKV: Joint Token-Feature KV Cache Compression with Reconstruction-Free Beacon Attention

Long-context LLM serving is increasingly bottlenecked by KV-cache memory, especially in resource-constrained scenarios. Among existing KV-cache compression strategies, token-wise methods reduce cached states but risk information loss through eviction or condensation, while feature-wise methods reduce per-token KV dimen...

Zi-Han Teng, Jiayu Zhao, Wen-Tao Ren et al. · 0 citations
#artificial intelligence Preprint May 2026

BitsMoE: Cost-Aware Bit Allocation in Spectral Space for MoE LLM Quantization

BitsMoE is proposed, a cost-aware mixed-precision quantization framework built on two complementary techniques that separates expert weights into a shared basis and expert-specific spectral components, defining structural quantization units while exploiting cross-expert redundancy.

Jiayu Zhao, Zi-Han Teng, Min-Hao Fan et al. · 0 citations
Jul 2026

Mapping Without Graphs: Learning Coherence Traffic for Task Placement

CoTM is proposed, a coherence-aware task mapping framework that constructs task graphs by inferring inter-task dependencies from dynamic coherence behavior, guided by a coherence-aware penalty function that jointly considers coherence traffic and NoC performance metrics.

Guochu Xiong, Tian-Rui Ma, Wei-Chen Liu · 0 citations
Preprint Jul 2026

Coherence in Control: Bridging Many-Core Mapping and Routing through Cost Unification

Co is proposed, a coherence-aware co-optimization framework that jointly integrates task mapping and routing under a unified cost model for realistic scenarios, enabling coherence-aware decision-making and effective trade-offs among optimization goals.

Guochu Xiong, Xiangzhong Luo, Weichen Liu · 0 citations
Open access Aug 2026

Retention-Based Energy-Efficient and High-Core-Utilization Scheduling for Arbitrary-Deadline DAGs

A retention-oriented scheduling framework for always-on arbitrary-deadline Directed Acyclic Graph workloads, consisting of two algorithms with a clear progression, and shows that, compared with a representative work-conserving baseline with automatic retention/PG, PREHS reduces static energy consumption.

Xiangzhen Xiao, Weijie Wang, Wei-Chen Liu et al. · 0 citations

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