Internet censorship, basically, is a very effective strategy used by dictatorial governments to limit access to information available online for controlling freedom of expression and prevent rebellion and discord. Countries at the forefront of adopting Internet censorship, as per the findings of the 2019 Freedom House report, are India and China as these are declared to be the worst abusers of digital freedom. Conversely, the US, Brazil, Sudan, and Kazakhstan are the countries where Internet freedom has considerably declined recently. When a country curbs Internet freedom, activists need to find ways to evade it. However, they may not need to manually search for it now that "Geneva" is here.
New work led by University of Maryland computer scientists could shift the balance of the censorship race. The researchers developed a tool called Geneva (short for Genetic Evasion), which automatically learns how to circumvent censorship. Tested in China, India and Kazakhstan, Geneva found dozens of ways to circumvent censorship by exploiting gaps in censors' logic and finding bugs that the researchers say would have been virtually impossible for humans to find manually. The researchers will introduce Geneva during a peer-reviewed talk at the Association for Computing Machinery's 26th Conference on Computer and Communications Security in London on November 14, 2019. "With Geneva, we are, for the first time, at a major advantage in the censorship arms race," said Dave Levin, an assistant professor of computer science at UMD and senior author of the paper.
Journal of Artificial Intelligence Research 66 (2019) 225-242 Submitted 02/2019; published 09/2019 Context Vectors Are Reflections of Word Vectors in Half the Dimensions Zhenisbek Assylbekov firstname.lastname@example.org Nazarbayev University, Department of Mathematics, 53 Kabanbay Batyr ave., Astana 010000 Kazakhstan Abstract This paper takes a step towards the theoretical analysis of the relationship between word embeddings and context embeddings in models such as word2vec. We start from basic probabilistic assumptions on the nature of word vectors, context vectors, and text generation. These assumptions are supported either empirically or theoretically by the existing literature. Next, we show that under these assumptions the widely-used word-word PMI matrix is approximately a random symmetric Gaussian ensemble. This, in turn, implies that context vectors are reflections of word vectors in approximately half the dimensions. As a direct application of our result, we suggest a theoretically grounded way of tying weights in the SGNS model. 1 1. Introduction and Main Result Today word embeddings play an important role in many natural language processing tasks, from predictive language models and machine translation to image annotation and question answering, where they are usually plugged into a larger model.
In this photo taken on Friday, July 26, 2019, and distributed by Roscosmos Space Agency Press Service, the Fedor robot is displayed before being loaded into a Soyuz capsule that was launched Thursday Aug. 22, 2019, from the launch pad at Russia's space facility in Baikonur, Kazakhstan. A Russian space capsule carrying a humanoid robot has failed to dock as planned with the International Space Station. A statement from the Russian space agency Roscosmos said the failure to dock on Saturday Aug. 24, 2019, was because of problems in the docking system, but didn't give details.
A Russian humanoid robot was making its way on Thursday to the International Space Station after blasting off on a two-week mission to support the crew and test his skills. Known as FEDOR, which stands for Final Experimental Demonstration Object Research, the Skybot F-850 is the first humanoid robot to be sent to space by Russia. NASA sent humanoid robot Robonaut 2 to space in 2011 to work in hazardous environments. "The robot's main purpose it to be used in operations that are especially dangerous for humans onboard spacecraft and in outer space," Russian space agency Roscosmos said on Thursday after the launch from the Baikonur Cosmodrome. The ISS is a joint project of the space agencies of the United States, Russia, Europe, Japan and Canada.
Fedor, which is travelling to the orbital outpost aboard the Soyuz MS-14 spacecraft, was created by Russia's Android Technology Company and the Advanced Research Fund on a technical assignment from Moscow's Emergencies Ministry. Its basic goals include transmitting telemetry data, determining parameters related to the flight safety, including overloads, and carrying out experiments to test the Skybot's operations capabilities on spacewalks outside the ISS. A Soyuz-2.1a carrier rocket blasted off from the Gagarin Start launch pad of the Baikonur spaceport in Kazakhstan yesterday delivering the Soyuz MS-14 spacecraft with Fedor into the near-Earth orbit.
Russia's space agency has released eerie footage of its human-like android which will board the International Space Station next week. Nicknamed Fedor - which stands for Final Experimental Demonstration Research - the anthropomorphous machine was seen undergoing a battery of stress-tests at the Baikonur Cosmodrome in Kazakhstan. Dubbed Putin's robo-naut, the machine can be seen determining targets and honing in on specific points, such as steering wheels, which will surely come in handy while they're in orbit. The scenes come ahead of its inclusion on the unmanned Soyuz MS-14 spacecraft on 22 August 2019. 'MMA fighter' loses temper and battles two revellers at once In action: Dubbed Putin's robo-naut, the machine can be seen determining targets and honing in on specific points, such as steering wheels, which will surely come in handy while they're in orbit On time: Putin's deputy premier, Dmitry Rogozin, claimed the war in Syria had shown Russia the importance of robots in difficult environments, and promised Fedor would make its space debut in five years - a deadline it will soon meet Fedor stands 6-foot tall, weighs no less than 233 pounds depending on extra equipment, and can lift up to 44 pounds of cargo.
Nasa's brand new Mars lander has sent back the first stunning of the surface of the red planet, taken at the end of a terrifying journey. As well as showing the dusty red ground that is now the InSight lander's home, the photo marks a successful close to a journey that took seven months from Earth, and culminated with a nervy few hours as InSight blasted through the Martian atmosphere. The photograph, which shows the InSight spacecraft in the front and the Martian surface further on, is an incredible look at a world that has killed most of the landers that have tried to journey there. From the International Space Station, Expedition 42 Flight Engineer Terry W. Virts took this photograph of the Gulf of Mexico and U.S. Gulf Coast at sunset This image of an area on the surface of Mars, approximately 1.5 by 3 kilometers in size, shows frosted gullies on a south-facing slope within a crater. The image was taken by Nasa's HiRISE camera, which is mounted on its Mars Reconaissance Orbiter The Soyuz TMA-15M rocket launches from the Baikonur Cosmodrome in Kazakhstan on Monday, Nov. 24, 2014, carrying three new astronauts to the International Space Station.
In 2018, alas, Space Camp is also the nearest you can get to space tourism. Right now not even $30 million will get you aboard the Soyuz rocket in Kazakhstan, the last functioning launch system that takes people to space, which suffered a catastrophic failure on October 11. Elon Musk's SpaceX, Jeff Bezos' Blue Origin, Richard Branson's Virgin Galactic: all are developing space tourism offerings. And all seem perpetually five years away from their launch date. Yes, we've seen a lot of important developments in private space flight, such as the fact that both SpaceX and Blue Origin have made their booster rockets reusable by figuring out how to land them after a launch.
The two astronauts involved in a crash landing after a Russian launch when wrong will head back up to space in the same rocket. The head of Russia's space agency said that the pair have been provisionally scheduled to fly back to the International Space Station in spring of next year. And his equivalent at Nasa said he had full confidence in the Soyuz rocket, despite the potentially catastrophic failure observed during the latest launch. From the International Space Station, Expedition 42 Flight Engineer Terry W. Virts took this photograph of the Gulf of Mexico and U.S. Gulf Coast at sunset This image of an area on the surface of Mars, approximately 1.5 by 3 kilometers in size, shows frosted gullies on a south-facing slope within a crater. The image was taken by Nasa's HiRISE camera, which is mounted on its Mars Reconaissance Orbiter The Soyuz TMA-15M rocket launches from the Baikonur Cosmodrome in Kazakhstan on Monday, Nov. 24, 2014, carrying three new astronauts to the International Space Station.