Goto

Collaborating Authors

 terra




Terra: Imperative-SymbolicCo-Executionof ImperativeDeepLearningPrograms

Neural Information Processing Systems

On the other hand, in the latter model, the Python interpreter embeds DL operations into a symbolic graph that represents the entire dataflow of aDNN. Thus, users should define their DL programs only with existing symbolic operations thatDLframeworks support.


Time-Varying LoRA: Towards Effective Cross-Domain Fine-Tuning of Diffusion Models

Neural Information Processing Systems

Large-scale diffusion models are adept at generating high-fidelity images and facilitating image editing and interpolation. However, they have limitations when tasked with generating images in dynamic, evolving domains. In this paper, we introduce Terra, a novel Time-varying low-rank adapter that offers a fine-tuning framework specifically tailored for domain flow generation. The key innovation of Terra lies in its construction of a continuous parameter manifold through a time variable, with its expressive power analyzed theoretically. This framework not only enables interpolation of image content and style but also offers a generation-based approach to address the domain shift problems in unsupervised domain adaptation and domain generalization. Specifically, Terra transforms images from the source domain to the target domain and generates interpolated domains with various styles to bridge the gap between domains and enhance the model generalization, respectively. We conduct extensive experiments on various benchmark datasets, empirically demonstrate the effectiveness of Terra. Our source code is publicly available on https://github.com/zwebzone/terra.


Terra: A Multimodal Spatio-Temporal Dataset Spanning the Earth

Neural Information Processing Systems

Since the inception of our planet, the meteorological environment, as reflected through spatio-temporal data, has always been a fundamental factor influencing human life, socio-economic progress, and ecological conservation. A comprehensive exploration of this data is thus imperative to gain a deeper understanding and more accurate forecasting of these environmental shifts. Despite the success of deep learning techniques within the realm of spatio-temporal data and earth science, existing public datasets are beset with limitations in terms of spatial scale, temporal coverage, and reliance on limited time series data. These constraints hinder their optimal utilization in practical applications.


Terra: Imperative-Symbolic Co-Execution of Imperative Deep Learning Programs

Neural Information Processing Systems

Imperative programming allows users to implement their deep neural networks (DNNs) easily and has become an essential part of recent deep learning (DL) frameworks. Recently, several systems have been proposed to combine the usability of imperative programming with the optimized performance of symbolic graph execution. Such systems convert imperative Python DL programs to optimized symbolic graphs and execute them.


Terra: Explorable Native 3D World Model with Point Latents

Huang, Yuanhui, Chen, Weiliang, Zheng, Wenzhao, Tao, Xin, Wan, Pengfei, Zhou, Jie, Lu, Jiwen

arXiv.org Artificial Intelligence

World models have garnered increasing attention for comprehensive modeling of the real world. However, most existing methods still rely on pixel-aligned representations as the basis for world evolution, neglecting the inherent 3D nature of the physical world. This could undermine the 3D consistency and diminish the modeling efficiency of world models. In this paper, we present Terra, a native 3D world model that represents and generates explorable environments in an intrinsic 3D latent space. Specifically, we propose a novel point-to-Gaussian variational autoencoder (P2G-VAE) that encodes 3D inputs into a latent point representation, which is subsequently decoded as 3D Gaussian primitives to jointly model geometry and appearance. We then introduce a sparse point flow matching network (SPFlow) for generating the latent point representation, which simultaneously denoises the positions and features of the point latents. Our Terra enables exact multi-view consistency with native 3D representation and architecture, and supports flexible rendering from any viewpoint with only a single generation process. Furthermore, Terra achieves explorable world modeling through progressive generation in the point latent space. We conduct extensive experiments on the challenging indoor scenes from ScanNet v2. Terra achieves state-of-the-art performance in both reconstruction and generation with high 3D consistency.



Supplementary Material for Paper " Terra: Imperative-Symbolic Co-Execution of Imperative Deep Learning Programs " A Criteria for Node Equality When Merging Traces

Neural Information Processing Systems

TraceGraph, it compares the type, attributes, and the executed location of each operation. For example, the MatMul operation of TensorFlow has ' MatMul ' as GraphGenerator fails to match because of the different attributes. The pushed call id is popped when the function is returned. As same as the call id stack, Terra manages the loop id stack for the entire program execution. Current implementation of Terra does not consider multi-threading yet.