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Haozhen Zhang

10 accepted papers

2026

Distribution-Aware Multi-Granularity Phase Coding: Towards Lower Conversion Error for Spike-Driven Large Language Models

ICLR 2026poster

Spiking large language models (LLMs) offer significant advantages on neuromorphic hardware, yet training them from scratch remains prohibitively expensive. A promising alternative is ANN-to-SNN conversion, which reuses pretrained ANN weights while minimizing conversion error. However, existing conv…

Cited by 0SourcecodeScholar
2026

GraphPlanner: Graph-Based Agentic Routing for LLMs

ICLR 2026poster

LLM routing has achieved promising results in integrating the strengths of di- verse models while balancing efficiency and performance. However, to support more realistic and challenging applications, routing must extend into agentic LLM settings—where task planning, multi-round cooperation among he…

Cited by 0SourcecodeScholar
2026

Learning Query-Aware Budget-Tier Routing for Runtime Agent Memory

ICML 2026poster

Memory is increasingly central to Large Language Model (LLM) agents operating beyond a single context window, yet most existing systems rely on offline, query-agnostic memory construction that can be inefficient and may discard query-critical information. Although runtime memory utilization is a nat…

Cited by 0SourceScholar
2026

Online Black-Box Prompt Optimization with Regret Guarantees under Noisy Feedback

ICLR 2026poster

Generative AI excels in various tasks through advanced language modeling techniques, with its performance heavily influenced by input prompts. This has driven significant research into prompt optimization, particularly in commercial generative AI platforms, where prompt optimization is treated as a…

Cited by 0SourceScholar
2025

Collaborative Discrete-Continuous Black-Box Prompt Learning for Language Models

ICLR 2025poster

Large Scale Pre-Trained Language Models (PTMs) have demonstrated unprecedented capabilities across diverse natural language processing tasks. Adapting such models to downstream tasks is computationally intensive and time-consuming, particularly in black-box scenarios common in Language-Model-as-a-…

Cited by 0SourcePDFScholar
2025

Graph of Records: Boosting Retrieval Augmented Generation for Long-context Summarization with Graphs

ACL 2025long

Retrieval-augmented generation (RAG) has revitalized Large Language Models (LLMs) by injecting non-parametric factual knowledge. Compared with long-context LLMs, RAG is considered an effective summarization tool in a more concise and lightweight manner, which can interact with LLMs multiple times us…

2025

Leveraging First and Zeroth-Order Gradient to Address Imbalanced Black-Box Prompt Tuning via Minimax Optimization

AAAI 2025technical

Black-box prompt tuning has become a prevalent parameter-efficient paradigm that leverages the capabilities of large language models (LLMs) for customized applications in specific downstream tasks. In practical scenarios, downstream tasks frequently involve data distributions that are heavily imbala…

2025

Query Efficient Black-Box Visual Prompting with Subspace Learning

CVPR 2025poster

Visual Prompt Learning (VPL) has emerged as a powerful strategy for harnessing the capabilities of large-scale pre-trained models (PTMs) to tackle specific downstream tasks. However, the opaque nature of PTMs in many real-world applications has led to a growing interest in gradient-free approaches w…

2025

Revolutionizing Encrypted Traffic Classification with MH-Net: A Multi-View Heterogeneous Graph Model

AAAI 2025technical

With the growing significance of network security, the classification of encrypted traffic has emerged as an urgent challenge. Traditional byte-based traffic analysis methods are constrained by the rigid granularity of information and fail to fully exploit the diverse correlations between bytes. To…

2025

Router-R1: Teaching LLMs Multi-Round Routing and Aggregation via Reinforcement Learning

NeurIPS 2025poster

The rapid emergence of diverse large language models (LLMs) has spurred the development of LLM routers that assign user queries to the most suitable model. However, existing LLM routers typically perform a single-round, one-to-one mapping (\textit{i.e.}, assigning each query to a single model in iso…

Cited by 0SourcecodeScholar