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Sixun Dong

8 accepted papers

2026

Brownian Bridge Augmented Surrogate Simulation and Injection Planning for Geological CO2 Storage

AAAI 2026technical

Geological CO2 storage (GCS) involves injecting captured CO2 into deep subsurface formations to support climate goals. The effective management of GCS relies on adaptive injection planning to dynamically control injection rates and well pressures to balance both storage safety and efficiency. Prior

Cited by 0SourcePDFScholar
2026

Efficient Post-Training Refinement of Latent Reasoning in Large Language Models

AAAI 2026technical

Reasoning is a key component of language understanding in Large Language Models. While Chain-of-Thought prompting enhances performance via explicit intermediate steps, it suffers from sufficient token overhead and a fixed reasoning trajectory, preventing step-wise refinement. Recent advances in late

Cited by 0SourcePDFScholar
2026

MMTok: Multimodal Coverage Maximization for Efficient Inference of VLMs

ICLR 2026poster

Vision-Language Models (VLMs) demonstrate impressive performance in understanding visual content with language instruction by converting visual inputs to vision tokens. However, redundancy in vision tokens results in the degenerated inference efficiency of VLMs. While many algorithms have been propo…

Cited by 0SourceScholar
2026

TOWARDS ROBUST DYSARTHRIC SPEECH RECOGNITION: LLM-AGENT POST-ASR CORRECTION BEYOND WER

ICASSP 2026poster

While Automatic Speech Recognition (ASR) is typically benchmarked by word error rate (WER), real-world applications ultimately hinge on semantic fidelity. This mismatch is particularly problematic for dysarthric speech, where articulatory imprecision and disfluencies can cause severe semantic distor…

Cited by 0SourcePDFScholar
2025

Sculpting Features from Noise: Reward-Guided Hierarchical Diffusion for Task-Optimal Feature Transformation

NeurIPS 2025poster

Feature Transformation (FT) crafts new features from original ones via mathematical operations to enhance dataset expressiveness for downstream models. However, existing FT methods exhibit critical limitations: discrete search struggles with enormous combinatorial spaces, impeding practical use; and…

Cited by 0SourcecodeScholar
2025

Unsupervised Feature Transformation via In-context Generation, Generator-critic LLM Agents, and Duet-play Teaming

IJCAI 2025

Feature transformation involves generating a new set of features from the original dataset to enhance the data's utility. In certain domains like material performance screening, dimensionality is large and collecting labels is expensive and lengthy. It highly necessitates transforming feature spaces

2023

Weakly Supervised Video Representation Learning With Unaligned Text for Sequential Videos

CVPR 2023poster

Sequential video understanding, as an emerging video understanding task, has driven lots of researchers' attention because of its goal-oriented nature. This paper studies weakly supervised sequential video understanding where the accurate time-stamp level text-video alignment is not provided. We sol…

2022

TransRAC: Encoding Multi-Scale Temporal Correlation With Transformers for Repetitive Action Counting

CVPR 2022oral

Counting repetitive actions are widely seen in human activities such as physical exercise. Existing methods focus on performing repetitive action counting in short videos, which is tough for dealing with longer videos in more realistic scenarios. In the data-driven era, the degradation of such gener…

Cited by 70PDFcodeScholar