Fine-Tuning Large Multimodal Models for Automatic Pronunciation Assessment

Kavli Affiliate: Ke Wang | First 5 Authors: Ke Wang, Ke Wang, , , | Summary: Automatic Pronunciation Assessment (APA) is critical for Computer-Assisted Language Learning (CALL), requiring evaluation across multiple granularities and aspects. Large Multimodal Models (LMMs) present new opportunities for APA, but their effectiveness in fine-grained assessment remains uncertain. This work investigates fine-tuning […]


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Dynamical Analysis of the HD 169142 Planet-Forming Disk: Twelve Years of High-Contrast Polarimetry

Kavli Affiliate: Ruobing Dong | First 5 Authors: Miles Lucas, Miles Lucas, , , | Summary: We present a dynamical analysis of the HD 169142 planet-forming disk based on high-contrast polarimetric imaging over a twelve-year observational period, offering insights into its disk evolution and planet-disk interactions. This study explores the evolution of scattered-light features and […]


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MCI: Multi-Channel Imager on the Chinese Space Station Survey Telescope

Kavli Affiliate: Hu Zhan | First 5 Authors: Zhen-Ya Zheng, Zhen-Ya Zheng, , , | Summary: The Multi-Channel Imager (MCI) is a powerful near-ultraviolet (NUV) and visible imager onboard the Chinese Space Station Survey Telescope (CSST). The MCI provides three imaging channels, which are the NUV channel, the Optical-blue channel and the Optical-red channel, with […]


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Scientific Objectives of the Xue-shan-mu-chang 15-meter Submillimeter Telescope

Kavli Affiliate: Gregory Herczeg | First 5 Authors: , , , , | Summary: Submillimeter astronomy is poised to revolutionize our understanding of the Universe by revealing cosmic phenomena hidden from optical and near-infrared observations, particularly those associated with interstellar dust, molecular gas, and star formation. The Xue-shan-mu-chang 15-meter submillimeter telescope (XSMT-15m), to be constructed […]


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Predicting stellar collision outcomes of main sequence stars

Kavli Affiliate: Pau Amaro Seoane | First 5 Authors: Pau Amaro Seoane, Pau Amaro Seoane, , , | Summary: Stellar collisions in dense galactic nuclei might play an important role in fueling supermassive black holes (SMBHs) and shaping their environments. The gas released during these collisions can contribute to SMBH accretion, influencing phenomena such as […]


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Dense Molecular Ring-like structure in gaseous CO depletion region G34.74-0.12

Kavli Affiliate: Lile Wang | First 5 Authors: Shuting Lin, Shuting Lin, , , | Summary: We report the discovery of a dense molecular ring-like structure in a dense (10$^5$ cm$^-3$), cold (pc-scale CO depletion at a factor of 5), and young (10$^4$ year) star-forming region G34.74-0.12, revealed by C$^18$O (2-1), HNC (1-0), and N$_2$H$^+$ […]


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CORB-Planner: Corridor as Observations for RL Planning in High-Speed Flight

Kavli Affiliate: Zhuo Li | First 5 Authors: Yechen Zhang, Yechen Zhang, , , | Summary: Reinforcement learning (RL) has shown promise in a large number of robotic control tasks. Nevertheless, its deployment on unmanned aerial vehicles (UAVs) remains challenging, mainly because of reliance on accurate dynamic models and platform-specific sensing, which hinders cross-platform transfer. […]


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Consistent Modeling of Non-equilibrium Dust Sublimation and the Interactions with Dust Evolution in the Inner Regions of Protoplanetary Disks

Kavli Affiliate: Lile Wang | First 5 Authors: Sheng Xu, Sheng Xu, , , | Summary: The inner regions of protoplanetary disks are host to the sublimation of dust grains, a process traditionally modeled using equilibrium thermodynamics. We demonstrate through ab-initio density functional theory (DFT) and kinetic Monte Carlo (KMC) simulations that silicate dust sublimation […]


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Harnessing Uncertainty: Entropy-Modulated Policy Gradients for Long-Horizon LLM Agents

Kavli Affiliate: Ke Wang | First 5 Authors: Jiawei Wang, Jiawei Wang, , , | Summary: In long-horizon tasks, recent agents based on Large Language Models (LLMs) face a significant challenge that sparse, outcome-based rewards make it difficult to assign credit to intermediate steps. Previous methods mainly focus on creating dense reward signals to guide […]


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Anatomy of parameter-estimation biases in overlapping gravitational-wave signals: detector network

Kavli Affiliate: Lijing Shao | First 5 Authors: Ziming Wang, Ziming Wang, , , | Summary: With the significantly improved sensitivity and a wider frequency band, the next-generation gravitational-wave (GW) detectors are anticipated to detect $sim 10^5$ GW signals per year with durations from hours to days, leading to inevitable signal overlaps in the data […]


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