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Maohao Shen

10 accepted papers

2026

Machine Mental Imagery: Empower Multimodal Reasoning with Latent Visual Tokens

CVPR 2026

Vision-language models (VLMs) excel at multimodal understanding, yet their text-only decoding forces them to verbalize visual reasoning, limiting performance on tasks that demand visual imagination. Recent attempts train VLMs to render explicit images, but the heavy image-generation pre-training oft

Cited by 0SourcecodeScholar
2026

VowelPrompt: Hearing Speech Emotions from Text via Vowel-level Prosodic Augmentation

ICLR 2026poster

Emotion recognition in speech presents a complex multimodal challenge, requiring comprehension of both linguistic content and vocal expressivity, particularly prosodic features such as fundamental frequency, intensity, and temporal dynamics. Although large language models (LLMs) have shown promise i…

Cited by 0SourceScholar
2025

Get Large Language Models Ready to Speak: A Late-fusion Approach for Speech Generation

ICASSP 2025accepted

Large language models (LLMs) have revolutionized natural language processing (NLP) with impressive performance across various text-based tasks. However, the extension of text-dominant LLMs to with speech generation tasks remains underexplored. In this work, we introduce a text-to-speech (TTS) system…

Cited by 6SourceScholar
2025

RL Tango: Reinforcing Generator and Verifier Together for Language Reasoning

NeurIPS 2025poster

Reinforcement learning (RL) has recently emerged as a compelling approach for enhancing the reasoning capabilities of large language models (LLMs), where an LLM generator serves as a policy guided by a verifier (reward model). However, current RL post-training methods for LLMs typically use verifier…

Cited by 0SourcecodeScholar
2025

Satori: Reinforcement Learning with Chain-of-Action-Thought Enhances LLM Reasoning via Autoregressive Search

ICML 2025poster

Large language models (LLMs) have demonstrated remarkable reasoning capabilities across diverse domains. Recent studies have shown that increasing test-time computation enhances LLMs' reasoning capabilities. This typically involves extensive sampling at inference time guided by an external LLM verif…

Cited by 2SourcePDFScholar
2025

VCA: Video Curious Agent for Long Video Understanding

ICCV 2025poster

Long video understanding poses unique challenges due to its temporal complexity and low information density. Recent works address this task by sampling numerous frames or incorporating auxiliary tools using LLMs, both of which result in high computational costs. In this work, we introduce a curiosit…

Cited by 0SourcePDFScholar
2024

Are Uncertainty Quantification Capabilities of Evidential Deep Learning a Mirage?

NeurIPS 2024poster

This paper questions the effectiveness of a modern predictive uncertainty quantification approach, called *evidential deep learning* (EDL), in which a single neural network model is trained to learn a meta distribution over the predictive distribution by minimizing a specific objective function. Des…

2024

Thermometer: Towards Universal Calibration for Large Language Models

ICML 2024poster

We consider the issue of calibration in large language models (LLM). Recent studies have found that common interventions such as instruction tuning often result in poorly calibrated LLMs. Although calibration is well-explored in traditional applications, calibrating LLMs is uniquely challenging. The…

2023

On Balancing Bias and Variance in Unsupervised Multi-Source-Free Domain Adaptation

ICML 2023poster

Due to privacy, storage, and other constraints, there is a growing need for unsupervised domain adaptation techniques in machine learning that do not require access to the data used to train a collection of source models. Existing methods for multi-source-free domain adaptation (MSFDA) typically tra…

2023

Post-hoc Uncertainty Learning Using a Dirichlet Meta-Model

AAAI 2023technical

It is known that neural networks have the problem of being over-confident when directly using the output label distribution to generate uncertainty measures. Existing methods mainly resolve this issue by retraining the entire model to impose the uncertainty quantification capability so that the lear…