Goto

Collaborating Authors

 Oceania


SCROLLS: Standardized CompaRison Over Long Language Sequences

arXiv.org Artificial Intelligence

NLP benchmarks have largely focused on short texts, such as sentences and paragraphs, even though long texts comprise a considerable amount of natural language in the wild. We introduce SCROLLS, a suite of tasks that require reasoning over long texts. We examine existing long-text datasets, and handpick ones where the text is naturally long, while prioritizing tasks that involve synthesizing information across the input. SCROLLS contains summarization, question answering, and natural language inference tasks, covering multiple domains, including literature, science, business, and entertainment. Initial baselines, including Longformer Encoder-Decoder, indicate that there is ample room for improvement on SCROLLS. We make all datasets available in a unified text-to-text format and host a live leaderboard to facilitate research on model architecture and pretraining methods.


Aerial Images Meet Crowdsourced Trajectories: A New Approach to Robust Road Extraction

arXiv.org Artificial Intelligence

Land remote sensing analysis is a crucial research in earth science. In this work, we focus on a challenging task of land analysis, i.e., automatic extraction of traffic roads from remote sensing data, which has widespread applications in urban development and expansion estimation. Nevertheless, conventional methods either only utilized the limited information of aerial images, or simply fused multimodal information (e.g., vehicle trajectories), thus cannot well recognize unconstrained roads. To facilitate this problem, we introduce a novel neural network framework termed Cross-Modal Message Propagation Network (CMMPNet), which fully benefits the complementary different modal data (i.e., aerial images and crowdsourced trajectories). Specifically, CMMPNet is composed of two deep Auto-Encoders for modality-specific representation learning and a tailor-designed Dual Enhancement Module for cross-modal representation refinement. In particular, the complementary information of each modality is comprehensively extracted and dynamically propagated to enhance the representation of another modality. Extensive experiments on three real-world benchmarks demonstrate the effectiveness of our CMMPNet for robust road extraction benefiting from blending different modal data, either using image and trajectory data or image and Lidar data. From the experimental results, we observe that the proposed approach outperforms current state-of-the-art methods by large margins.Our source code is resealed on the project page \url{http://lingboliu.com/multimodal road extraction.html}


Collaborative Reflection-Augmented Autoencoder Network for Recommender Systems

arXiv.org Artificial Intelligence

As the deep learning techniques have expanded to real-world recommendation tasks, many deep neural network based Collaborative Filtering (CF) models have been developed to project user-item interactions into latent feature space, based on various neural architectures, such as multi-layer perceptron, auto-encoder and graph neural networks. However, the majority of existing collaborative filtering systems are not well designed to handle missing data. Particularly, in order to inject the negative signals in the training phase, these solutions largely rely on negative sampling from unobserved user-item interactions and simply treating them as negative instances, which brings the recommendation performance degradation. To address the issues, we develop a Collaborative Reflection-Augmented Autoencoder Network (CRANet), that is capable of exploring transferable knowledge from observed and unobserved user-item interactions. The network architecture of CRANet is formed of an integrative structure with a reflective receptor network and an information fusion autoencoder module, which endows our recommendation framework with the ability of encoding implicit user's pairwise preference on both interacted and non-interacted items. Additionally, a parametric regularization-based tied-weight scheme is designed to perform robust joint training of the two-stage CRANet model. We finally experimentally validate CRANet on four diverse benchmark datasets corresponding to two recommendation tasks, to show that debiasing the negative signals of user-item interactions improves the performance as compared to various state-of-the-art recommendation techniques. Our source code is available at https://github.com/akaxlh/CRANet.


Semantic and sentiment analysis of selected Bhagavad Gita translations using BERT-based language framework

arXiv.org Artificial Intelligence

It is well known that translations of songs and poems not only breaks rhythm and rhyming patterns, but also results in loss of semantic information. The Bhagavad Gita is an ancient Hindu philosophical text originally written in Sanskrit that features a conversation between Lord Krishna and Arjuna prior to the Mahabharata war. The Bhagavad Gita is also one of the key sacred texts in Hinduism and known as the forefront of the Vedic corpus of Hinduism. In the last two centuries, there has been a lot of interest in Hindu philosophy by western scholars and hence the Bhagavad Gita has been translated in a number of languages. However, there is not much work that validates the quality of the English translations. Recent progress of language models powered by deep learning has enabled not only translations but better understanding of language and texts with semantic and sentiment analysis. Our work is motivated by the recent progress of language models powered by deep learning methods. In this paper, we compare selected translations (mostly from Sanskrit to English) of the Bhagavad Gita using semantic and sentiment analyses. We use hand-labelled sentiment dataset for tuning state-of-art deep learning-based language model known as \textit{bidirectional encoder representations from transformers} (BERT). We use novel sentence embedding models to provide semantic analysis for selected chapters and verses across translations. Finally, we use the aforementioned models for sentiment and semantic analyses and provide visualisation of results. Our results show that although the style and vocabulary in the respective Bhagavad Gita translations vary widely, the sentiment analysis and semantic similarity shows that the message conveyed are mostly similar across the translations.


An Adaptive Device-Edge Co-Inference Framework Based on Soft Actor-Critic

arXiv.org Artificial Intelligence

Recently, the applications of deep neural network (DNN) have been very prominent in many fields such as computer vision (CV) and natural language processing (NLP) due to its superior feature extraction performance. However, the high-dimension parameter model and large-scale mathematical calculation restrict the execution efficiency, especially for Internet of Things (IoT) devices. Different from the previous cloud/edge-only pattern that brings huge pressure for uplink communication and device-only fashion that undertakes unaffordable calculation strength, we highlight the collaborative computation between the device and edge for DNN models, which can achieve a good balance between the communication load and execution accuracy. Specifically, a systematic on-demand co-inference framework is proposed to exploit the multi-branch structure, in which the pre-trained Alexnet is right-sized through \emph{early-exit} and partitioned at an intermediate DNN layer. The integer quantization is enforced to further compress transmission bits. As a result, we establish a new Deep Reinforcement Learning (DRL) optimizer-Soft Actor Critic for discrete (SAC-d), which generates the \emph{exit point}, \emph{partition point}, and \emph{compressing bits} by soft policy iterations. Based on the latency and accuracy aware reward design, such an optimizer can well adapt to the complex environment like dynamic wireless channel and arbitrary CPU processing, and is capable of supporting the 5G URLLC. Real-world experiment on Raspberry Pi 4 and PC shows the outperformance of the proposed solution.


7 ways the technology sector could support global society in 2022 - JackOfAllTechs.com

#artificialintelligence

Some of the excesses of 2021 have shown us how digital technologies can undermine what philosophers call future "human flourishing." A lot has been written on this topic in the first few days of the new year, but take two examples -- MIT Technology Review's list of the worst excesses of technology and Fast Company's 5 best and worst tech moments of 2021 -- and it's evident how little power people affected by technologies have when things go wrong under current systems. What's also clear as we enter 2022 is that global tolerance for technology's unchecked disruption of societal institutions, conventions, and values is waning. This is the year governments will pass legislation to control the effects of digital technologies on societies, across many jurisdictions and in relation to numerous existing and emergent technologies. The EU AI and Digital Services Acts, the UK Online Safety Bill, and the US SAFE TECH Act are just a few of the efforts underway. Legislation is a marker of societal concern, but it's also clear that non-specialist, "ordinary" people have an increasingly sophisticated understanding of the relationship between technology and society.


Living on the Edge (AI)

#artificialintelligence

We are living in a hyperconnected world, where every device is connected, and are generating data at an unprecedented rate. If we look at a smartwatch or a smartphone, smart cars, smart factories, smart homes, or smart cities, the enormous data generated is collected at the source, processed and smart decisions are required to be executed instantly. This is possible when two powerful technologies come together such as Edge Computing and Artificial Intelligence (AI). Therefore, looking into poetic justification by the acclaimed music group Aerosmith, in these interesting times, we are "living on the edge". 'Edge AI' is the amalgamation of two incredible technologies: Edge, which is all about bringing computation and data closer to end users to improve efficiency, and AI, which comprises of data-driven intelligence.


Complete Machine Learning & Data Science Bootcamp 2022

#artificialintelligence

This is a brand new Machine Learning and Data Science course just launched and updated this month with the latest trends and skills for 2021! Become a complete Data Scientist and Machine Learning engineer! Join a live online community of 400,000 engineers and a course taught by industry experts that have actually worked for large companies in places like Silicon Valley and Toronto. Graduates of Andrei's courses are now working at Google, Tesla, Amazon, Apple, IBM, JP Morgan, Facebook, other top tech companies. You will go from zero to mastery!


Google Home, YouTube integrate with Volvo Cars โ€“ TechCrunch

#artificialintelligence

Google unveiled Wednesday at CES 2022 a range of new ways to keep its Android devices connected -- and that includes cars. As more vehicles go electric and automakers evolve into software developers, expect to see more plays directed at turning cars into connected devices. Take Volvo Cars, for instance. The automaker and Google announced at CES 2022 new content and services that will be coming to future Volvo vehicles, including the ability to download and use the YouTube app via Google Play Store and the ability to communicate with the Google Home ecosystem. New Volvo car models are equipped with an Android Automotive operating system and have embedded voice-controlled Google Assistant, Google Play Store, Google Maps and other Google services into its infotainment system.


Hyperspectral Image Denoising Using Non-convex Local Low-rank and Sparse Separation with Spatial-Spectral Total Variation Regularization

arXiv.org Artificial Intelligence

In this paper, we propose a novel nonconvex approach to robust principal component analysis for HSI denoising, which focuses on simultaneously developing more accurate approximations to both rank and column-wise sparsity for the low-rank and sparse components, respectively. In particular, the new method adopts the log-determinant rank approximation and a novel $\ell_{2,\log}$ norm, to restrict the local low-rank or column-wisely sparse properties for the component matrices, respectively. For the $\ell_{2,\log}$-regularized shrinkage problem, we develop an efficient, closed-form solution, which is named $\ell_{2,\log}$-shrinkage operator. The new regularization and the corresponding operator can be generally used in other problems that require column-wise sparsity. Moreover, we impose the spatial-spectral total variation regularization in the log-based nonconvex RPCA model, which enhances the global piece-wise smoothness and spectral consistency from the spatial and spectral views in the recovered HSI. Extensive experiments on both simulated and real HSIs demonstrate the effectiveness of the proposed method in denoising HSIs.