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Researchers have developed a novel system named “Gen” that can be used for Artificial Intelligence applications such as computer vision, robotics, and statistics without having to deal with equations or manually writing high-performance codes.
“Gen” includes a number of novel language constructs such as a generative function interface to encapsulate probabilistic models, combinators to create new generative functions from existing ones and an inference library providing high-level inference algorithms.
In the study published in the journal PLDI 2019, researchers from the Massachusetts Institute of Technology demonstrated the probabilistic programming system that aims to be both expressive at the modelling level and efficient at the algorithmic level.
“Gen” has already showed better performance than existing probabilistic programming systems for a number of different problems such as tracking objects in space, estimating 3D body pose from a depth image, and inferring the structure of a time series, researchers said.
Based on Julia – a language specialised in numerical analysis and which aims to allow users to express models and create inference algorithms using high-level programming constructs, “Gen” models can be expressed in a number of different ways, each striking a different flexibility/efficiency trade-off. “Gen” provides a built-in modelling language that extends Julia’s syntax for function definition.
“Gen” models are black boxes called generative functions (GF), that provide an interface (GFI), exposing capabilities required by inference, researchers said. The generative function approach is key to making “Gen” suitable for application to a wide range of problems and enables it to use models created in TensorFlow as algorithms written in a programming language or as a result of simulations. (IANS)
Delhi Chief Minister Arvind Kejriwal on Tuesday said the Delhi government would arrange free-of-cost travel for senior citizens from Delhi to Ayodhya.
"I want every Indian should be fortunate enough to have a 'darshan' (visit) of Ram Lalla. I am a small man but Lord Ram has given me enough and I will use my position to help people to come for darshan here," Kejriwal added after offering prayers at the Ram Janmabhoomi temple in Ayodhya on Tuesday.
Speaking to the media, he said, "I pray to Lord Ram to help India move ahead in the world and bring prosperity for 130 crore people."
Kejriwal, who visited the Hanuman Garhi temple, said he was fortunate enough to be in Ayodhya and seek blessings from Lord Ram for the welfare of Delhi, Uttar Pradesh, and the rest of the country.
The Delhi Chief Minister had arrived at the temple town on Monday and attended the 'Sarayu aarti' where he interacted with saints and seers. (IANS/JB)
Keywords: Ayodhya, Ayodhya Ram Mandir, Delhi CM Arvind Kejriwal, Ram Mandir for senior citizens, Ram Janmabhoomi temple.
Tamil Nadu will host the national blind football tournament for men and women from October 27-30. This is the first time the state is playing host to the national blind football tournament.
The state has formed a blind football team for men only in 2018, and, in 2019 the Tamil Nadu blind football association commenced functioning.
The founder of the TN Blind football association, GR Bharathiraja, while speaking to IANS said, "While we were late in establishing a team and forming an association, we have not lagged behind in training, and a good team is now arranged. We are hosting the national football championship for the blind in both men's and women's categories from October 27."
This is the first time a national-level women's blind football tournament is being conducted while this will be the sixth national blind football tournament for men.
The teams are coached by Francis Sebastian who is an acclaimed blind football coach and he said that the tournament was slated for 2023 but the associations put pressure on the national office-bearers and have made the tournament possible in 2021 itself.
Sebastian, while speaking to IANS, said, "While both the men's and women's teams are performing extremely well, we need more support from sponsors as well as the general public. In the northeastern states of the country, blind football is popular in villages and we are planning to make it popular among the masses of Tamil Nadu, and for that, we need more support and patronage."
The state association, as a first step, is planning to introduce football in every blind school of the state and to train coaches for the same. The blind football association also wants to divide the state into five zones with each zone comprising of some districts and to decentralise the coaching programme so that the game is introduced across the state.
Bharathiraja and Sebastian have said that infrastructural problems are plaguing the game and that the team does not have a playing ground of its own, but the passion for the game is pulling the organisers, players, and coach forward. (IANS/JB)
Keywords: Football, Sports, Blind Tournament. national blind football tournament, Tamil Nadu blind football association
Japan has successfully launched a new navigation satellite into orbit that will replace its decade-old navigation satellite.
The satellite, QZS-1R, was launched onboard an H-2A rocket that lifted off from the Tanegashima Space Center at 10.19 p.m. on Monday night, Mitsubishi Heavy Industries said in a statement.
The company builds and operates H-2A rockets the Japan Aerospace Exploration Agency (JAXA).
QZS-1R is a replacement for Quasi-Zenith Satellite System 1 satellite first launched in 2010. “It was a really beautiful launch," the company said in a tweet after a successful lift-off.
"H-IIA F44 flight proceeded nominally. Approximately 28 minutes 6 seconds after launch, as planned, the payload separated from the launch vehicle," the statement said.
The official QZSS website lists four satellites in the constellation: QZS-1, QZS-2, QZS-3 and QZS-4, Space.com reported.
The QZSS constellation will eventually consist of a total of seven satellites that fly in an orbit passing through a near-zenith (or directly overhead) above Japan, and QZS-R1 is meant to share nearly the same transmission signals as recent GPS satellites, according to JAXA.
It is specially optimised for mountainous and urban regions in Japan, JAXA said.
Mitsubishi's H-2A 202 rocket launch system has been operational since 2003 and has sent satellites to locations such as Venus (Akatsuki) and Mars (Emirates Mars Mission).
The latest H2-A rocket launch is the first since November 29, 2020, when Japan launched an advanced relay satellite with laser communications tech into orbit, the report said. (IANS/JB)
Keywords: Science, Space Satellite, Communications, Japan Aerospace Exploration Agency, satellite QZS-1R