DR-NTU (Data) (Nanyang Technological University)

DR-NTU (Data) (Nanyang Technological University)
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    1955 research outputs found

    Replication Data for: Satellite radar advances carbon emissions accountability over tropical peat

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    This data repository contains peat motions derived from ALOS-2 InSAR in Central Kalimantan, Indonesia in the study "Satellite radar advances carbon emissions accountability over tropical peat". Refer to README.txt for further details

    Related Data for: Topological optical skyrmion transfer to matter

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    Source file for Topological optical skyrmion transfer to matte

    Replication Data for: Aqueous Colloidal Perovskite Quantum Emitters

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    Aqueous solutions of nanoparticles are the cornerstones for applications in diagnostics, catalysis and more, where control over the nanoparticle's dispersion is pivotal to tailoring the final product properties. Of late, halide perovskite nanocrystals (HPNCs) with outstanding optoelectronic properties emerge as a class of semiconductor nanocrystals distinct from the incumbents. However, HPNCs are particularly susceptible to moisture induced degradation, limiting their utility and regulation in aqueous environments. Here, this hurdle is overcome to realize stable, monodisperse, highly emissive HPNCs in aqueous environments even under ultra-dilute conditions. These colloidal HPNCs are synthesized via a facile room-temperature structural transformation-induced in situ core-shell self-assembly mechanism in contrast to the widely used pre-core-shell approach. The green HPNCs exhibit > 80% photoluminescence quantum yield (PLQY) with excellent water dispersion stability (i.e., zeta potential > 80 mV) even after > 10,000 h in water. Unprecedented aqueous solution phase single‐photon emission with g(2)(0) < 0.2 at concentrations as low as ≈ 0.1 nM is measured. These aqueous HPNCs offer full color tunability that covers the entire Rec. 2020 standard. These findings will lay the foundation for innovative applications of HPNCs in aqueous environments, unlocking new opportunities for nanoscale sensing and optofluidics in photonics, environmental science, and materials engineering

    Towards Cross-Modality Modeling for Time Series Analytics: A Survey in the LLM Era

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    The proliferation of edge devices has generated an unprecedented volume of time series data across different domains, motivating various well-customized methods. Recently, Large Language Models (LLMs) have emerged as a new paradigm for time series analytics by leveraging the shared sequential nature of textual data and time series. However, a fundamental cross-modality gap between time series and LLMs exists, as LLMs are pre-trained on textual corpora and are not inherently optimized for time series. Many recent proposals are designed to address this issue. In this survey, we provide an up-to-date overview of LLMs-based cross-modality modeling for time series analytics. We first introduce a taxonomy that classifies existing approaches into four groups based on the type of textual data employed for time series modeling. We then summarize key cross-modality strategies, e.g., alignment and fusion, and discuss their applications across a range of downstream tasks. Furthermore, we conduct experiments on multimodal datasets from different application domains to investigate effective combinations of textual data and cross-modality strategies for enhancing time series analytics. Finally, we suggest several promising directions for future research. This survey is designed for a range of professionals, researchers, and practitioners interested in LLM-based time series modeling

    F-LMM: Grounding Frozen Large Multimodal Models

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    Endowing Large Multimodal Models (LMMs) with visual grounding capability can significantly enhance AIs’ understanding of the visual world and their interaction with humans. However, existing methods typically fine-tune the parameters of LMMs to learn additional segmentation tokens and overfit grounding and segmentation datasets. Such a design would inevitably cause a catastrophic diminution in the indispensable conversational capability of general AI assistants. In this paper, we comprehensively evaluate state-of-the-art grounding LMMs across a suite of multimodal question-answering benchmarks, observing drastic performance drops that indicate vanishing general knowledge comprehension and weakened instruction following ability. To address this issue, we present FLMM—grounding frozen off-the-shelf LMMs in human-AI conversations—a straightforward yet effective design based on the fact that word-pixel correspondences conducive to visual grounding inherently exist in the attention mechanism of well-trained LMMs. Using only a few trainable CNN layers, we can translate word-pixel attention weights to mask logits, which a SAM-based mask refiner can further optimise. Our F-LMM neither learns special segmentation tokens nor utilises high-quality grounded instruction-tuning data, but achieves competitive performance on referring expression segmentation and panoptic narrative grounding benchmarks while completely preserving LMMs’ original conversational ability. Additionally, with instructionfollowing ability preserved and grounding ability obtained, F-LMM can be directly applied to complex tasks like reasoning segmentation, grounded conversation generation and visual chain-of-thought reasoning. Our code can be found at https://github.com/wusize/F-LMM

    Data for: Partitioning of Rubisco activase into the pyrenoidal Rubisco condensate is mediated by a functional protein-protein interaction

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    Original data files analyzed for this publication are provided according to the Figure panel in the paper

    Computational Data of Wash-Free Bioimaging Review

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    The electronic structures and excited-state properties were derived using computational data obtained from density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations. All computational studies were conducted using Gaussian 16 software. The results, as discussed in the review paper, were employed to analyze the mechanistic aspects of fluorescence quenching in relevant systems. The computational methods have been highlighted in the corresponding figures, and details are provided in the figure captions to ensure clarity and reproducibility

    Replication Data for: Two Causally Related Needles in a Video Haystack

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    Causal2Needles is a benchmark dataset and evaluation toolkit designed to assess the capabilities of both proprietary and open-source multimodal large language models in long-video understanding. It features a large number of "2-needle" questions, where the model must locate and reason over two distinct pieces of information from the video

    Replication Data for: Skyrmionic polarization texture around the phase singularity of optical vortices

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    Experimental measurement of transverse-axial polarization texture

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    DR-NTU (Data) (Nanyang Technological University) is based in Singapore
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