Non-dominated sorting genetic algorithm II (NSGA-II) does well in dealing with multi-objective problems. When evaluating validity of an algorithm for multi-objective problems, two kinds of indices are often considered simultaneously, i.e. the convergence to Pareto Front and the distribution characteristic. The crowding distance in the standard NSGA-II has the property that solutions within a cubic have the same crowding distance, which has no contribution to the convergence of the algorithm. Actually the closer to the Pareto Front a solution is, the higher priority it should have. In the paper, the crowding distance is redefined while keeping almost all the advantages of the original one. Moreover, the speed of converging to the Pareto Front is faster. Finally, the improvement is proved to be effective by applying it to solve nine Benchmark problems.

Dementia and especially Alzheimer's disease (AD) are the most common causes of cognitive decline in elderly people. A spread of the above mentioned mental health problems in aging societies is causing a significant medical and economic burden in many countries around the world. According to a recent World Health Organization (WHO) report, it is approximated that currently, worldwide, about 47 million people live with a dementia spectrum of neurocognitive disorders. This number is expected to triple by 2050, which calls for possible application of AI-based technologies to support an early screening for preventive interventions and a subsequent mental wellbeing monitoring as well as maintenance with so-called digital-pharma or beyond a pill therapeutical approaches. This paper discusses our attempt and preliminary results of brainwave (EEG) techniques to develop digital biomarkers for dementia progress detection and monitoring. We present an information geometry-based classification approach for automatic EEG-derived event related responses (ERPs) discrimination of low versus high task-load auditory or tactile stimuli recognition, of which amplitude and latency variabilities are similar to those in dementia. The discussed approach is a step forward to develop AI, and especially machine learning (ML) approaches, for the subsequent application to mild-cognitive impairment (MCI) and AD diagnostics.

The Internet has rich and rapidly increasing sources of high quality educational content. Inferring prerequisite relations between educational concepts is required for modern large-scale online educational technology applications such as personalized recommendations and automatic curriculum creation. We present PREREQ, a new supervised learning method for inferring concept prerequisite relations. PREREQ is designed using latent representations of concepts obtained from the Pairwise Latent Dirichlet Allocation model, and a neural network based on the Siamese network architecture. PREREQ can learn unknown concept prerequisites from course prerequisites and labeled concept prerequisite data. It outperforms state-of-the-art approaches on benchmark datasets and can effectively learn from very less training data. PREREQ can also use unlabeled video playlists, a steadily growing source of training data, to learn concept prerequisites, thus obviating the need for manual annotation of course prerequisites.

Dell has changed every single one of its user passwords on its store, after a major cyber attack. The company said that it had found and stopped hackers who were trying to break into its systems. But it would change the passwords to ensure that all data was safe, it said. The company has been criticised for being slow in informing users of the change and the potential breach. The reset happened on 14 November, five days after the hackers were discovered, and users were only informed this week.

Showbox, an app that offers a free way to watch the latest films and TV shows, appears to have broken. And some have suggested that the mysterious app could have shut down entirely, never to return. People trying to open the mysterious – and potentially illegal-to-use – app are simply seeing a message that the app has broken and cannot be accessed. Uber has halted testing of driverless vehicles after a woman was killed by one of their cars in Tempe, Arizona. The I.F.O. is fuelled by eight electric engines, which is able to push the flying object to an estimated top speed of about 120mph The giant human-like robot bears a striking resemblance to the military robots starring in the movie'Avatar' and is claimed as a world first by its creators from a South Korean robotic company Waseda University's saxophonist robot WAS-5, developed by professor Atsuo Takanishi and Kaptain Rock playing one string light saber guitar perform jam session A man looks at an exhibit entitled'Mimus' a giant industrial robot which has been reprogrammed to interact with humans during a photocall at the new Design Museum in South Kensington, London Electrification Guru Dr. Wolfgang Ziebart talks about the electric Jaguar I-PACE concept SUV before it was unveiled before the Los Angeles Auto Show in Los Angeles, California, U.S The Jaguar I-PACE Concept car is the start of a new era for Jaguar.

Virtual assistants such as Amazon's Alexa and Google Home have the capacity to analyse how happy and healthy a couple's relationship is, research has found. In-home listening devices will soon be able to judge how functional relationships are as well as interrupt an argument with an idea for how to resolve it, the study said. The research, by Imperial College Business School, stated that within the next two to three years, digital assistants could predict with 75 per cent accuracy the likelihood of a relationship or marriage being a success. The technology would reach a verdict through acoustic analysis of communication between couples – examining everything from everyday encounters to arguments. The virtual assistants would then be able to provide relationship advice and what researchers refer to as democratising counselling.

From birds taking flight to sweeping waterfalls - these amazing drone images showcase spectacular scenery from perspectives that have never been seen before. The beguiling images appeared on photo-sharing site Dronestagram which is dedicated to drone photography.

Global car makers are feeding real-time location information and dozens of other data points from electric vehicles to Chinese government monitoring centres, as President Xi Jinping steps up the use of technology to track Chinese citizens. The data-gathering generally happens without car owners' knowledge, the Associated Press found. More than 200 car makers selling electric vehicles in China -- including Tesla, Volkswagen, BMW, Daimler, Ford, General Motors, Nissan and Mitsubishi -- send at least 61 data points to government-backed monitoring platforms, under rules published in 2016. The firms say they are complying with local laws, which apply only to alternative energy vehicles. Chinese officials say the data is used for analytics to improve public safety, facilitate industrial development and infrastructure planning, and to prevent fraud in subsidy programmes.

Over the course of the next month, I will be releasing a series of China-centered articles, leading up to my webinar with Dr. Kai-Fu Lee, one of the most plugged-in AI investors on the planet and of the technology's earliest pioneers. In the next four weeks, we'll be covering everything from China's surging tech investments and the drivers behind China's growing dominance in AI, to an early look at Kai-Fu Lee's soon-to-be-released AI Superpowers: China, Silicon Valley and the New World Order. Today, let's dive into Chinese venture capital abroad. Of the $154 billion worth of VC invested in 2017, 40 percent came from Asian (primarily Chinese) VCs. In a great push to access intellectual property and drive growth in key tech sectors, China's VC scene is booming.

Donald Trump has become the wrecking ball of the postwar global order--and he clearly revels in its destruction. So far, he has little to show on big-ticket challenges, including Russia, China, North Korea, Middle East peace and Iran, international trade and tariffs, or arms deals. His next big test is this weekend, in Buenos Aires, at the G-20 summit, convening the world's largest economies and weightiest powers. All of those issues will be on his agenda in one venue. On Thanksgiving, Trump--who recently gave his Presidency an A-plus--said he is confident about his prospects at the G-20 summit, including negotiations with China's President, Xi Jinping, to avoid a trade war.