Overview
Japan recruits Subaru, Uber and Boeing to get flying cars off the ground
Japan wants to commercialize flying vehicles as early as the 2020s through a government- backed campaign that already has recruited the likes of Subaru, Uber and Boeing. The country's powerful Ministry of Economy, Trade and Industry launched the project last month with a meeting that pulled together public agencies and private industry. The flight of fancy comes amid Japan's concern that its auto industry was caught flat-footed in other emerging global technology trends such as autonomous driving and ride-hailing. The government wants Japan to have a leading role when it comes to personal flying vehicles. "Globally, there is a growing interest in what is called'flying cars' that will enable such transportation services in the sky," the trade ministry said in a statement after the first meeting.
Increasing Importance of AI in Customer-Facing Industries Like Banking, Retail, Media, Cosmetics and Healthcare
Emerging technology trends clearly point to a future encompassing screen-less interactions between businesses and consumers, with voice, augmented and virtual reality, wearable devices, and artificial intelligence, gradually but definitely removing the traditional graphic user interface (GUI) from the equation. The next decade is expected to be even more disruptive based on the methodologies used by customers to interact with brands. A closer glimpse of the consumer landscape, reveals irrefutable enthusiasm for artificial intelligence (AI) as compared to other upcoming technologies. However, the technology is still in the experimental phase. Even though the majority of enterprise leaders consider AI to be a business advantage, many organizations are taciturn to trust AI to the extent of deferring implementation and hence are yet to benefit from the technology's promising capabilities.
Deep Learning Towards Mobile Applications
Wang, Ji, Cao, Bokai, Yu, Philip S., Sun, Lichao, Bao, Weidong, Zhu, Xiaomin
Abstract--Recent years have witnessed an explosive growth of mobile devices. Mobile devices are permeating every aspect of our daily lives. With the increasing usage of mobile devices and intelligent applications, there is a soaring demand for mobile applications with machine learning services. Inspired by the tremendous success achieved by deep learning in many machine learning tasks, it becomes a natural trend to push deep learning towards mobile applications. However, there exist many challenges to realize deep learning in mobile applications, including the contradiction between the miniature nature of mobile devices and the resource requirement of deep neural networks, the privacy and security concerns about individuals' data, and so on. To resolve these challenges, during the past few years, great leaps have been made in this area. In this paper, we provide an overview of the current challenges and representative achievements about pushing deep learning on mobile devices from three aspects: training with mobile data, efficient inference on mobile devices, and applications of mobile deep learning. The former two aspects cover the primary tasks of deep learning. Then, we go through our two recent applications that apply the data collected by mobile devices to inferring mood disturbance and user identification. Finally, we conclude this paper with the discussion of the future of this area. The past few years have witnessed an explosive growth of mobile devices which is expected to continue in the next decades. It is predicted that mobile devices will reach 5.6 billion, accounting for 21% of all networked devices in 2020 [1].
Decentralized Cooperative Planning for Automated Vehicles with Continuous Monte Carlo Tree Search
Kurzer, Karl, Engelhorn, Florian, Zöllner, J. Marius
Urban traffic scenarios often require a high degree of cooperation between traffic participants to ensure safety and efficiency. Observing the behavior of others, humans infer whether or not others are cooperating. This work aims to extend the capabilities of automated vehicles, enabling them to cooperate implicitly in heterogeneous environments. Continuous actions allow for arbitrary trajectories and hence are applicable to a much wider class of problems than existing cooperative approaches with discrete action spaces. Based on cooperative modeling of other agents, Monte Carlo Tree Search (MCTS) in conjunction with Decoupled-UCT evaluates the action-values of each agent in a cooperative and decentralized way, respecting the interdependence of actions among traffic participants. The extension to continuous action spaces is addressed by incorporating novel MCTS-specific enhancements for efficient search space exploration. The proposed algorithm is evaluated under different scenarios, showing that the algorithm is able to achieve effective cooperative planning and generate solutions egocentric planning fails to identify.
Performance Metrics (Error Measures) in Machine Learning Regression, Forecasting and Prognostics: Properties and Typology
Performance metrics (error measures) are vital components of the evaluation frameworks in various fields. The intention of this study was to overview of a variety of performance metrics and approaches to their classification. The main goal of the study was to develop a typology that will help to improve our knowledge and understanding of metrics and facilitate their selection in machine learning regression, forecasting and prognostics. Based on the analysis of the structure of numerous performance metrics, we propose a framework of metrics which includes four (4) categories: primary metrics, extended metrics, composite metrics, and hybrid sets of metrics. The paper identified three (3) key components (dimensions) that determine the structure and properties of primary metrics: method of determining point distance, method of normalization, method of aggregation of point distances over a data set.
Elliptical Distributions-Based Weights-Determining Method for OWA Operators
Sha, Xiuyan, Xu, Zeshui, Yin, Chuancun
The ordered weighted averaging (OWA) operators play a crucial role in aggregating multiple criteria evaluations into an overall assessment supporting the decision makers' choice. One key point steps is to determine the associated weights. In this paper, we first briefly review some main methods for determining the weights by using distribution functions. Then we propose a new approach for determining OWA weights by using the RIM quantifier. Motivated by the idea of normal distribution-based method to determine the OWA weights, we develop a method based on elliptical distributions for determining the OWA weights, and some of its desirable properties have been investigated.
Why are Sequence-to-Sequence Models So Dull? Understanding the Low-Diversity Problem of Chatbots
Jiang, Shaojie, de Rijke, Maarten
Diversity is a long-studied topic in information retrieval that usually refers to the requirement that retrieved results should be non-repetitive and cover different aspects. In a conversational setting, an additional dimension of diversity matters: an engaging response generation system should be able to output responses that are diverse and interesting. Sequence-to-sequence (Seq2Seq) models have been shown to be very effective for response generation. However, dialogue responses generated by Seq2Seq models tend to have low diversity. In this paper, we review known sources and existing approaches to this low-diversity problem. We also identify a source of low diversity that has been little studied so far, namely model over-confidence. We sketch several directions for tackling model over-confidence and, hence, the low-diversity problem, including confidence penalties and label smoothing.
Neural Architecture Search: A Survey
Elsken, Thomas, Metzen, Jan Hendrik, Hutter, Frank
Deep Learning has enabled remarkable progress over the last years on a variety of tasks, such as image recognition, speech recognition, and machine translation. One crucial aspect for this progress are novel neural architectures. Currently employed architectures have mostly been developed manually by human experts, which is a time-consuming and error-prone process. Because of this, there is growing interest in automated neural architecture search methods. We provide an overview of existing work in this field of research and categorize them according to three dimensions: search space, search strategy, and performance estimation strategy.
Utilizing Character and Word Embeddings for Text Normalization with Sequence-to-Sequence Models
Watson, Daniel, Zalmout, Nasser, Habash, Nizar
Text normalization is an important enabling technology for several NLP tasks. Recently, neural-network-based approaches have outperformed well-established models in this task. However, in languages other than English, there has been little exploration in this direction. Both the scarcity of annotated data and the complexity of the language increase the difficulty of the problem. To address these challenges, we use a sequence-to-sequence model with character-based attention, which in addition to its self-learned character embeddings, uses word embeddings pre-trained with an approach that also models subword information. This provides the neural model with access to more linguistic information especially suitable for text normalization, without large parallel corpora. We show that providing the model with word-level features bridges the gap for the neural network approach to achieve a state-of-the-art F1 score on a standard Arabic language correction shared task dataset.
Recognizing human facial expressions with machine learning
Machine learning systems can be trained to recognize emotional expressions from images of human faces, with a high degree of accuracy in many cases. Image by Tsukiko Kiyomidzu However, implementation can be a complex and difficult task. The technology is at a relatively early stage. High quality datasets can be hard to find. And there are various pitfalls to avoid when designing new systems. This article provides an introduction to the field known as Facial Expression Recognition (FER).