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Deploying AI Frameworks on Secure HPC Systems with Containers
Brayford, David, Vallecorsa, Sofia, Atanasov, Atanas, Baruffa, Fabio, Riviera, Walter
The increasing interest in the usage of Artificial Intelligence techniques (AI) from the research community and industry to tackle "real world" problems, requires High Performance Computing (HPC) resources to efficiently compute and scale complex algorithms across thousands of nodes. Unfortunately, typical data scientists are not familiar with the unique requirements and characteristics of HPC environments. They usually develop their applications with high-level scripting languages or frameworks such as TensorFlow and the installation process often requires connection to external systems to download open source software during the build. HPC environments, on the other hand, are often based on closed source applications that incorporate parallel and distributed computing API's such as MPI and OpenMP, while users have restricted administrator privileges, and face security restrictions such as not allowing access to external systems. In this paper we discuss the issues associated with the deployment of AI frameworks in a secure HPC environment and how we successfully deploy AI frameworks on SuperMUC-NG with Charliecloud.
PCC Net: Perspective Crowd Counting via Spatial Convolutional Network
Gao, Junyu, Wang, Qi, Li, Xuelong
Crowd counting from a single image is a challenging task due to high appearance similarity, perspective changes and severe congestion. Many methods only focus on the local appearance features and they cannot handle the aforementioned challenges. In order to tackle them, we propose a Perspective Crowd Counting Network (PCC Net), which consists of three parts: 1) Density Map Estimation (DME) focuses on learning very local features for density map estimation; 2) Random High-level Density Classification (R-HDC) extracts global features to predict the coarse density labels of random patches in images; 3) Fore-/Background Segmentation (FBS) encodes mid-level features to segments the foreground and background. Besides, the DULR module is embedded in PCC Net to encode the perspective changes on four directions (Down, Up, Left and Right). The proposed PCC Net is verified on five mainstream datasets, which achieves the state-of-the-art performance on the one and attains the competitive results on the other four datasets. The source code is available at https://github.com/gjy3035/PCC-Net.
Edge Intelligence: Paving the Last Mile of Artificial Intelligence with Edge Computing
Zhou, Zhi, Chen, Xu, Li, En, Zeng, Liekang, Luo, Ke, Zhang, Junshan
With the breakthroughs in deep learning, the recent years have witnessed a booming of artificial intelligence (AI) applications and services, spanning from personal assistant to recommendation systems to video/audio surveillance. More recently, with the proliferation of mobile computing and Internet-of-Things (IoT), billions of mobile and IoT devices are connected to the Internet, generating zillions Bytes of data at the network edge. Driving by this trend, there is an urgent need to push the AI frontiers to the network edge so as to fully unleash the potential of the edge big data. To meet this demand, edge computing, an emerging paradigm that pushes computing tasks and services from the network core to the network edge, has been widely recognized as a promising solution. The resulted new inter-discipline, edge AI or edge intelligence, is beginning to receive a tremendous amount of interest. However, research on edge intelligence is still in its infancy stage, and a dedicated venue for exchanging the recent advances of edge intelligence is highly desired by both the computer system and artificial intelligence communities. To this end, we conduct a comprehensive survey of the recent research efforts on edge intelligence. Specifically, we first review the background and motivation for artificial intelligence running at the network edge. We then provide an overview of the overarching architectures, frameworks and emerging key technologies for deep learning model towards training/inference at the network edge. Finally, we discuss future research opportunities on edge intelligence. We believe that this survey will elicit escalating attentions, stimulate fruitful discussions and inspire further research ideas on edge intelligence.
STG2Seq: Spatial-temporal Graph to Sequence Model for Multi-step Passenger Demand Forecasting
Bai, Lei, Yao, Lina, Kanhere, Salil. S, Wang, Xianzhi, Sheng, Quan. Z
Multi-step passenger demand forecasting is a crucial task in on-demand vehicle sharing services. However, predicting passenger demand over multiple time horizons is generally challenging due to the nonlinear and dynamic spatial-temporal dependencies. In this work, we propose to model multi-step citywide passenger demand prediction based on a graph and use a hierarchical graph convolutional structure to capture both spatial and temporal correlations simultaneously. Our model consists of three parts: 1) a long-term encoder to encode historical passenger demands; 2) a short-term encoder to derive the next-step prediction for generating multi-step prediction; 3) an attention-based output module to model the dynamic temporal and channel-wise information. Experiments on three real-world datasets show that our model consistently outperforms many baseline methods and state-of-the-art models.
Facial recognition tech: watchdog calls for code to regulate police use
The information commissioner has expressed concern over the lack of a formal legal framework for the use of facial recognition cameras by the police. A barrister for the commissioner, Elizabeth Denham, told a court the current guidelines around automated facial recognition (AFR) technology were "ad hoc" and a clear code was needed. In a landmark case, Ed Bridges, an office worker from Cardiff, claims South Wales police violated his privacy and data protection rights by using AFR on him when he went to buy a sandwich during his lunch break and when he attended a peaceful anti-arms demonstration. The technology maps faces in a crowd and then compares them with a watchlist of images, which can include suspects, missing people or persons of interest to the police. The cameras have been used to scan faces in large crowds in public places such as streets, shopping centres, football crowds and music events such as the Notting Hill carnival.
Introduction to Anomaly Detection using Machine Learning with a Case Study
A common need when you are analyzing real-world data-sets is determining which data point stand out as being different to all others data points. Such data points are known as anomalies. This article was originally published on Medium by Davis David. In this article, you will learn a couple of Machine Learning-Based Approaches for Anomaly Detection and then show how to apply one of these approaches to solve a specific use case for anomaly detection (Credit Fraud detection) in part two. A common need when you analyzing real-world data-sets is determining which data point stand out as being different to all others data points.
Using machine learning to 'automate' employee expertise Federal News Network
Machine learning and artificial intelligence were intended to make people more productive, not replace them. The tools are ultimately aimed at engineers who want to develop ways to solve problems more efficiently, at least that's how the Advanced Research Projects Agency -- Energy (ARPA-E) sees it. Engineers have long had tools such as computer-aided design and a lot of vendors provide CAD modeling software. But ARPA-E is going beyond that. Program Director David Tew said his agency hopes to "automate" the intuition and expertise that engineers bring to the table.
Automated Machine Learning
This open access book presents the first comprehensive overview of general methods in Automated Machine Learning (AutoML), collects descriptions of existing systems based on these methods, and discusses the first series of international challenges of AutoML systems. The recent success of commercial ML applications and the rapid growth of the field has created a high demand for off-the-shelf ML methods that can be used easily and without expert knowledge. However, many of the recent machine learning successes crucially rely on human experts, who manually select appropriate ML architectures (deep learning architectures or more traditional ML workflows) and their hyperparameters. To overcome this problem, the field of AutoML targets a progressive automation of machine learning, based on principles from optimization and machine learning itself. This book serves as a point of entry into this quickly-developing field for researchers and advanced students alike, as well as providing a reference for practitioners aiming to use AutoML in their work.
Armed with artificial intelligence, scientists take on climate change
Science needs to understand and predict how climate change--and the growing onslaught of hurricanes, fires, and floods it's bringing--affects tropical forests. Will the forests respond to the assault with shorter trees? Will they store less carbon, or support less tree and plant diversity and fewer wildlife species? To better understand the effects a changing climate will have on tropical forests, Maria Uriarte, Columbia University professor of ecology, evolution, and environmental biology, needs to analyze images of forests. These bird's-eye view images are the size of a postage stamp.
AI is here to stay Law Times
"There was no need for outsider or third party research. If artificial intelligence sources were employed, no doubt counsel's preparation time would have been significantly reduced." The bench -- which is often criticized for not adapting to technology soon enough -- is clearly sending a message that AI is here to stay when it comes to the efficient practice of law. Carole Piovesan, a Toronto lawyer, makes an important point. "What we are seeing from the bench, at least, is that the courts are mindful of the use of this technology and are grappling with what it means for the litigation process," she says.