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 Wadi al Hayaa District


PhantomLiDAR: Cross-modality Signal Injection Attacks against LiDAR

Jin, Zizhi, Jiang, Qinhong, Lu, Xuancun, Yan, Chen, Ji, Xiaoyu, Xu, Wenyuan

arXiv.org Artificial Intelligence

LiDAR (Light Detection and Ranging) is a pivotal sensor for autonomous driving, offering precise 3D spatial information. Previous signal attacks against LiDAR systems mainly exploit laser signals. In this paper, we investigate the possibility of cross-modality signal injection attacks, i.e., injecting intentional electromagnetic interference (IEMI) to manipulate LiDAR output. Our insight is that the internal modules of a LiDAR, i.e., the laser receiving circuit, the monitoring sensors, and the beam-steering modules, even with strict electromagnetic compatibility (EMC) testing, can still couple with the IEMI attack signals and result in the malfunction of LiDAR systems. Based on the above attack surfaces, we propose the PhantomLiDAR attack, which manipulates LiDAR output in terms of Points Interference, Points Injection, Points Removal, and even LiDAR Power-Off. We evaluate and demonstrate the effectiveness of PhantomLiDAR with both simulated and real-world experiments on five COTS LiDAR systems. We also conduct feasibility experiments in real-world moving scenarios. We provide potential defense measures that can be implemented at both the sensor level and the vehicle system level to mitigate the risks associated with IEMI attacks. Video demonstrations can be viewed at https://sites.google.com/view/phantomlidar.


Applications of Machine Learning in Biopharmaceutical Process Development and Manufacturing: Current Trends, Challenges, and Opportunities

Khuat, Thanh Tung, Bassett, Robert, Otte, Ellen, Grevis-James, Alistair, Gabrys, Bogdan

arXiv.org Artificial Intelligence

While machine learning (ML) has made significant contributions to the biopharmaceutical field, its applications are still in the early stages in terms of providing direct support for quality-by-design based development and manufacturing of biopharmaceuticals, hindering the enormous potential for bioprocesses automation from their development to manufacturing. However, the adoption of ML-based models instead of conventional multivariate data analysis methods is significantly increasing due to the accumulation of large-scale production data. This trend is primarily driven by the real-time monitoring of process variables and quality attributes of biopharmaceutical products through the implementation of advanced process analytical technologies. Given the complexity and multidimensionality of a bioproduct design, bioprocess development, and product manufacturing data, ML-based approaches are increasingly being employed to achieve accurate, flexible, and high-performing predictive models to address the problems of analytics, monitoring, and control within the biopharma field. This paper aims to provide a comprehensive review of the current applications of ML solutions in a bioproduct design, monitoring, control, and optimisation of upstream, downstream, and product formulation processes. Finally, this paper thoroughly discusses the main challenges related to the bioprocesses themselves, process data, and the use of machine learning models in biopharmaceutical process development and manufacturing. Moreover, it offers further insights into the adoption of innovative machine learning methods and novel trends in the development of new digital biopharma solutions.


Instruct-NeuralTalker: Editing Audio-Driven Talking Radiance Fields with Instructions

Sun, Yuqi, He, Ruian, Tan, Weimin, Yan, Bo

arXiv.org Artificial Intelligence

Recent neural talking radiance field methods have shown great success in photorealistic audio-driven talking face synthesis. In this paper, we propose a novel interactive framework that utilizes human instructions to edit such implicit neural representations to achieve real-time personalized talking face generation. Given a short speech video, we first build an efficient talking radiance field, and then apply the latest conditional diffusion model for image editing based on the given instructions and guiding implicit representation optimization towards the editing target. To ensure audio-lip synchronization during the editing process, we propose an iterative dataset updating strategy and utilize a lip-edge loss to constrain changes in the lip region. We also introduce a lightweight refinement network for complementing image details and achieving controllable detail generation in the final rendered image. Our method also enables real-time rendering at up to 30FPS on consumer hardware. Multiple metrics and user verification show that our approach provides a significant improvement in rendering quality compared to state-of-the-art methods.


AI and the cloud enable energy's transformative leap - BusinessWorld

#artificialintelligence

THE current pandemic has shown the oil and gas sector how dependable enterprise operations can be upended almost overnight. Work force routines at extraction sites and refineries have been disrupted, causing unplanned outages, as we saw at the Sharara oilfield. With supply chains interrupted, parts manufactured in traditional source markets could not be delivered on time, delaying essential maintenance. Border closures and an unprecedented drop in demand have further constricted already tight economic operations. Not only do these conditions look set to continue over the short term, but other challenges loom over the foreseeable future.


Towards Learning Cross-Modal Perception-Trace Models

Rettinger, Achim, Bogdanova, Viktoria, Niemann, Philipp

arXiv.org Artificial Intelligence

Representation learning is a key element of state-of-the-art deep learning approaches. It enables to transform raw data into structured vector space embeddings. Such embeddings are able to capture the distributional semantics of their context, e.g. by word windows on natural language sentences, graph walks on knowledge graphs or convolutions on images. So far, this context is manually defined, resulting in heuristics which are solely optimized for computational performance on certain tasks like link-prediction. However, such heuristic models of context are fundamentally different to how humans capture information. For instance, when reading a multi-modal webpage (i) humans do not perceive all parts of a document equally: Some words and parts of images are skipped, others are revisited several times which makes the perception trace highly non-sequential; (ii) humans construct meaning from a document's content by shifting their attention between text and image, among other things, guided by layout and design elements. In this paper we empirically investigate the difference between human perception and context heuristics of basic embedding models. We conduct eye tracking experiments to capture the underlying characteristics of human perception of media documents containing a mixture of text and images. Based on that, we devise a prototypical computational perception-trace model, called CMPM. We evaluate empirically how CMPM can improve a basic skip-gram embedding approach. Our results suggest, that even with a basic human-inspired computational perception model, there is a huge potential for improving embeddings since such a model does inherently capture multiple modalities, as well as layout and design elements.


Al Qaeda leader killed by drone strike in Libya identified by Pentagon

FOX News

Military officials say no civilians appear to be injured in the strike. A U.S. drone strike killed a "high ranking" official in the Al Qaeda in the Islamic Maghreb terror cell in Libya on Saturday, the Pentagon disclosed Wednesday. Musa Abu Dawud was one of two AQIM terrorists killed in the airstrike in southwest Libya near the city of Ubari in the Sahara desert. "Dawud trained AQIM recruits in Libya for attack operations in the region. He provided critical logistics support, funding and weapons to AQIM, enabling the terrorist group to threaten and attack U.S. and Western interests in the region," U.S. military's Africa Command said in a statement.


Image Caption with Global-Local Attention

Li, Linghui (Key Lab of Intelligent Information Processing of Chinese Academy of Sciences) | Tang, Sheng (Key Lab of Intelligent Information Processing of Chinese Academy of Sciences) | Deng, Lixi (Key Lab of Intelligent Information Processing of Chinese Academy of Sciences) | Zhang, Yongdong (Key Lab of Intelligent Information Processing of Chinese Academy of Sciences) | Tian, Qi (University of Texas at San Antonio)

AAAI Conferences

Image caption is becoming important in the field of artificial intelligence. Most existing methods based on CNN-RNN framework suffer from the problems of object missing and misprediction due to the mere use of global representation at image-level. To address these problems, in this paper, we propose a global-local attention (GLA) method by integrating local representation at object-level with global representation at image-level through attention mechanism. Thus, our proposed method can pay more attention to how to predict the salient objects more precisely with high recall while keeping context information at image-level cocurrently. Therefore, our proposed GLA method can generate more relevant sentences, and achieve the state-of-the-art performance on the well-known Microsoft COCO caption dataset with several popular metrics.