Scene from World Cup 2006. Explore further YouTube looks to dilute nasty programming with curated educational playlists If a user has editing preferences (for example, they want certain shots to align with certain parts of a song), the system can also work in semi-automatic mode. A user’s stipulations can become fairly complex, as well, overriding the system’s inherent rules.“A computer program won’t create new things unless it’s been taught to,” Wang explained. “In fact, computers are more suitable for tedious or computational tasks, such as selecting precise in/out frames and alignment work. The human must tell the computer what tasks to do. “The difference with our system is that it is able to use some high-level, abstract rules,” he continued. “For example, a user may say ‘I want the music “Hero” and Beckham’s shooting scene from EPL [English Premier League] 2004 to compose a music video,’ and our system can do the rest of the work, finding Beckham’s shooting events and aligning them to the music to achieve smooth shot transitions and understandable video content. The contribution of our system is that, since it is able to execute certain high-level rules for video editing, people can personalize this rule to produce their customized music video.”Even when the system performed fully automatically, the artistic results were impressive to viewers, who consistently rated the system higher in all scoring categories compared with other similar systems. In addition to their sensible structure, the videos also demonstrated a high degree of artistic quality, which may be somewhat surprising for a completely computerized system.“We think that, given limited material, a good selection must follow some rules,” Wang said. “Since we are not artists, we have to do some statistical work to discover these rules. If a music video can satisfy most of the predefined rules, its artistic attribute won’t be bad. But of course, it is usually necessary to conduct subjective evaluation to see how much the predefined rules are suitable.”Wang said that currently the system targets the broadcasting industry, but hopefully general users will benefit from it in the future. “We are definitely doing investigations to support more application areas based on the technique,” he said. “A software program like ‘muvee’ [a currently available program] for the general public is surely one of the best options.”Sample videos created with this software are temporarily available at: www.ntu.edu.sg/home5/Y020002/R … emo/Introduction.htm. Citation: Wang, Jinjun, Chng, Engsiong, Xu, Changsheng, Lu, Hanqinq, and Tian, Qi. “Generation of Personalized Music Sports Video Using Multimodal Cues.” IEEE Transactions on Multimedia, Vol. 9, No. 3, April 2007.Copyright 2007 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. Citation: Software allows amateurs to compose professional-looking music sports videos (2007, May 7) retrieved 18 August 2019 from https://phys.org/news/2007-05-software-amateurs-professional-looking-music-sports.html Scientists Jinjun Wang et al., representing different institutions in China and Singapore, have presented a novel approach to personalized music sports video composition. Their system can automatically detect events, players, or teams, and then smoothly integrate the scenes with music, all while maintaining the artistic quality of professional videos. They predict that home users will easily be able to customize sports videos for themselves, greatly increasing the production of these videos, as well as expanding the audience.“We have introduced a real-time sports event detection and broadcasting system and tested it using FIFA World Cup 2006 games,” Wang told PhysOrg.com. “In addition, with our second-step system, we are able to utilize the detected events to provide value-added services. With the ability to generate music sports video, it is possible to have prelude/postlude, half-break commentary, and summary TV programs using the latest game scenes.”In their paper published in IEEE Transactions on Multimedia, the scientists explain how they optimized the features for the intelligent automatic system. For example, a user can request certain events (such as goals in soccer videos or three-pointers in basketball) to include in a video. To satisfy the request, the system uses “semantic content extraction,” meaning that it searches the text for key words associated with the events. Text not only includes closed captioning, but also web casts from sites such as the BBC and Yahoo, where text often involves very detailed information. Rather than simple word matching, the software (dtSearch) uses techniques to filter unwanted scenes (e.g. ignores “goal kick” when searching for “goal”) and other advanced options.Then, to align the sports scenes with music, the system can automatically choose a song whose phrasing, beats, and lyrical structure matches with the dynamics of the scene shots. “The more different types of events the user need for ‘editing,’ the more processing time is required by our system,” Wang explained. “In an extreme case where all the types of events are required for detection, the system needs around 90 minutes to process a 90-minute soccer game—near real-time. The second step, the ‘editing” step, is quite fast—usually less than one minute for typical pop music.” Although currently the composition of music sports videos requires a tech-savvy professional with an artist’s touch, the future may enable any amateur to create their own personalized video using software in the works by a group of scientists. With its fully or semi-automatic modes, the system would turn a tedious, time-consuming, and skilled task into a hobbyist’s evening activity. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
Explore further Citation: KDDI’s First 3D Mobile Phone LCD Screen (2008, October 9) retrieved 18 August 2019 from https://phys.org/news/2008-10-kddi-3d-mobile-lcd-screen.html KDDI Corporation has released a prototype of the world’s first 3D LCD display, designed for mobile phones. This unique 3D LCD display is designed for mobile phones that are capable of showing still images and video in 3D. By using two separate LCD displays, the images are interlaced and projected on two separate LCD screens. One display outputs an image for the left eye, while the other outputs an image for the right eye. With each image being offset on each LCD display, you have a stereoscopic effect that tricks each eye into thinking that you have a real 3D image. This prototype has been demonstrated by KDDI Corp. using a resolution of 480 x 800 pixels. You can view both still images and video on the 3D LCD display. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Digitally programmable perovskite nanowire-block copolymer composites
Explore further © 2012 Phys.Org Journal information: Science The end of planet formation, as told by trace elements from the mantles of Earth, the moon and Mars A 700g individual of the NWA 869 meteorite. Chondrules and metal flakes can be seen on the cut and polished face of this specimen. Image: Wikipedia. Citation: Team finds asteroids were bombarded by iron loving elements too (2012, April 6) retrieved 18 August 2019 from https://phys.org/news/2012-04-team-asteroids-bombarded-iron-elements.html More information: Late Accretion on the Earliest Planetesimals Revealed by the Highly Siderophile Elements, Science 6 April 2012: Vol. 336 no. 6077 pp. 72-75. DOI: 10.1126/science.1214967ABSTRACTLate accretion of primitive chondritic material to Earth, the Moon, and Mars, after core formation had ceased, can account for the absolute and relative abundances of highly siderophile elements (HSEs) in their silicate mantles. Here we show that smaller planetesimals also possess elevated HSE abundances in chondritic proportions. This demonstrates that late addition of chondritic material was a common feature of all differentiated planets and planetesimals, irrespective of when they accreted; occurring ≤5 to ≥150 million years after the formation of the solar system. Parent-body size played a role in producing variations in absolute HSE abundances among these bodies; however, the oxidation state of the body exerted the major control by influencing the extent to which late-accreted material was mixed into the silicate mantle rather than removed to the core. (Phys.org) — A team made up of a diverse group of researchers has found after studying the composition of several asteroids that most such planetesimals had an abundance of highly siderophile elements in their mantles suggesting, as the team writes in their paper published in the journal Science, that they were subject to the same inner solar system bombardment by siderophile laden chondrites as were planets, including Earth. The Earth, like other planets, is believed to have come to its current state by first starting out as a ball or disk, of gas. As time passed the gases began to coalesce due to rotation, causing gravity to occur. The addition of gravity then caused other small elements in the vicinity to be pulled in adding to its size, a process known as accretion. As it did so, iron loving elements (siderophiles – such as platinum, gold rhenium, osmium, iridium, etc.) made their way to the core, where they bound tightly to the iron they found there. Later on however, as the planetesimal continued to grow as a result of asteroid and comet strikes, it eventually grew to become a planet. But because the mantle had grown dense over this period, new siderophiles weren’t able to make their way to the core, so they were left to become part of the crust and then the mantle. This new research suggests that the same thing occurred with asteroids.The researchers made this discovery by studying the giant asteroid Vesta and other smaller asteroids, noting that as with Earth, siderophiles were found in both the cores and mantles, suggesting that they too had suffered bombardment from other objects after settling into a stable core state.Scientists believe that the planets and asteroids that exist in our solar system were created some four billion years ago, and that they had settled into stable entities approximately ten million years later. Thus, subsequent impacts by siderophiles came after that time. But because asteroids are thought to have developed a little faster and earlier than the planets, experts believed they would likely have plenty of siderophiles in their cores, but little outside of them. Thus this new evidence comes as a surprise to the research community and means that estimates of the time period that accretion occurred for such planetesimals will have to be revised. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
Citation: Crowd-talk yields great answers, says university team (2012, September 10) retrieved 18 August 2019 from https://phys.org/news/2012-09-crowd-talk-yields-great-university-team.html © 2012 Phys.org More information: Research paper: Speaking With the Crowd, hci.cs.rochester.edu/pubs/pdfs/chorus_demo.pdf The Chorus system. User requests are forwarded to crowd workers, who then submit and vote on responses. Once sufﬁcient agreement is reached, responses are made visible to users. The crowd’s working memory is updated by workers selecting lines from the conversation or summarizing important facts. Credit: Walter S. Lasecki et al. (Phys.org)—Move over, Siri. Some researchers from the University of Rochester in collaboration with a University of California, Berkeley, mathematician/crowdsourcing entrepreneur, have come up with a killer personal assistant approach. “We introduce Chorus, a system that enables realtime, two-way natural language conversation between an end user and a crowd acting as a single agent.” So begins their paper, “Speaking with the Crowd,” suggesting the ideal artificial chat partner is the partner that is actually the work of contributions from many crowdsourced workers. The researchers propose a crowd-powered chat system that behaves as an online collaborative interface. They believe it one-ups existing systems because it can take on more complex tasks. Walter S. Lasecki, Rachel Wesley, and Jeffrey P. Bigham from the University of Rochester worked with Anand Kulkarni, the cofounder of the crowdsourcing company MobileWorks, to create Chorus. They sought to demonstrate that the power of crowdsourcing might be able to go beyond simple tasks into the complex. “What we’re really interested in is when a crowd as a collective can do better than even a high-quality individual,” said co-author Bigham.How the Chorus system works: People talk to Chorus with an instant messaging window. User requests are forwarded to crowd workers, who submit and vote on responses. When agreement is reached, responses are made visible to users. The crowd’s working memory is updated by workers selecting lines from the conversation or summarizing important facts. According to the co-authors of the paper, “Chorus is capable of maintaining a consistent, on-topic conversation with end users across multiple sessions, despite constituent individuals perpetually joining and leaving the crowd. This is enabled by using a curated shared dialogue history.”Put to the test, the researchers found that Chorus was able to keep up consistent conversations between a single user and large numbers of crowd participants. They said the talk was kept on focus. Also, Chorus was capable of retaining meaningful long-term conversational memory across multiple sessions, even as individual users changed. As for accuracy, workers were able to answer 84.6 percent of user queries correctly.In all, say the authors, “These ﬁndings suggest that Chorus is a robust interface for allowing disparate members of the crowd to represent a single individual during natural language conversations as an alternative to software agents.”How robust these systems become as technologies evolve remains to be seen. What is known is that personal assistants such as Apple’s Siri are very useful but do not come up to par with the conversational skills of a real person. As the researchers note, robust two-way conversations with software agents remain a challenge. Existing dialogue-based systems generally rely on a ﬁxed input vocabularies or restricted phrasings, have a limited memory of past interactions, and use a ﬁxed output vocabulary. As for where Chorus can fit in the real world, the authors say that “In the future, we expect Chorus will have utility as a conversational partner and as a natural-language dialogue interface to existing systems.” iPhone app uses crowd sourcing to help the blind This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Explore further
Before Your Flight: A Fingerprint Scan at the Check-in Desk Explore further Citation: Concerns raised about airline boarding pass barcodes (2012, October 26) retrieved 18 August 2019 from https://phys.org/news/2012-10-airline-boarding-barcodes.html (Phys.org)—Boarding passes for travel on airlines in the US (and many other countries) now include barcodes, but an aviation security researcher has now learned that these barcodes can be read by readily available tools and are unencrypted. The barcodes include information on the level of security check the passenger will be required to satisfy when they pass through pre-boarding checks. Credit: Wikipedia © 2012 Phys.org The fear that barcode information could potentially be of use to terrorists was first raised in an article in the Washington Post in July this year, but the fear was escalated last week by John Butler in his aviation blog, Puckinflight, when he reported that the barcode information was not encrypted.Passengers can print their boarding passes before they leave home, and Butler said the barcodes can easily be read by online barcode readers or smartphone apps, and this would enable them to see in advance if they have been selected for the Transportation Security Administration’s (TSA) PreCheck security level for the flight.PreCheck security level is applied randomly to frequent fliers and can be purchased from US Customs, who carry out a background check on the applicant before approving the security level. Once approved and enrolled in the system, passengers are eligible to be selected for PreCheck on any flight. If selected, they bypass some of the pre-boarding security measures, are allowed to leave their toiletries and laptops in their carry-on bags, and do not have to remove shoes, jackets or belts as they are screened. They also avoid the controversial full-body scanners.Butler suggested that the barcode could be altered to change the security level to PreCheck simply by reading the barcode, saving the information as a text file, and altering a single digit corresponding to the security level. The altered file could then be uploaded to another website to be re-encoded as a barcode, and this could easily be incorporated into the boarding pass using widely available photo-editing software.Other information on the barcode could be altered in the same way, including the passenger name, and flight details, and as long as the security check level was changed to PreCheck, the passenger would avoid thorough security checking and be likely to get through. The barcodes in US airports are read by machines operated by the TSA, but they are merely barcode readers and do not check the information. The TSA issued a statement that its security systems include “measures both seen and unseen,” but it did not comment on the specifics of Butler’s blog post.In a later blog post Butler said the International Air Transport Association (IATA) standards allow for a validation mark to be included in the barcode on boarding passes to prevent the kind of tampering Butler warned about, but while the barcodes remain unencrypted there is nothing to stop passengers learning in advance that they will be subjected to lower security measures. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
More information: Physics in finance: Trading at the speed of light, Mark Buchanan, www.nature.com/news/physics-in … eed-of-light-1.16872 Credit: Petr Kratochvil/public domain Explore further Ethnic diversity can deflate stock market bubbles, study finds This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Author, physicist and former editor, Mark Buchanan outlines technical issues with the global financial trading markets in a comment piece he has written for the journal Nature, where he suggests that more thought should be put into how the system evolves in the future because problems with it could cause very serious worldwide economic troubles. Journal information: Nature © 2015 Tech Xplore Citation: Physicist warns of problems with speeding up financial markets (2015, February 12) retrieved 18 August 2019 from https://phys.org/news/2015-02-physicist-problems-financial.html For most people, the global financial markets are a murky business, stocks and other commodities are bought and sold, by individuals, companies and most importantly traders every second that the markets are open. As technology has improved, the ability to buy and sell on any of the worlds’ markets (NYSE, Euronext, etc.) has become easy and commonplace. Technology has also changed the way trades are made, with big financial corporations relying on computers running sophisticated software to do the buying and selling for them—it all happens in milliseconds now. Over the past several years, it has become apparent that some corporations have found that the faster they can receive information from a market, process it and then send back a buy or sell order, the more of an edge they will have over competitors. This has led to a race of sorts, to see who can come up with the fastest system. In his article, Buchanan highlights many of the ways that businesses with deep pockets are speeding up their communications systems, such as installing laser systems on rooftops, and then asks if the move towards seeking the ultimate limit, the speed of light, is good for the financial markets, or the rest of the world’s economies.We all know about the dangers of automatic buying and selling by computers, “flash crashes” can cause massive hikes or drops in prices in milliseconds. Buchanan suggests speeding up communications ever more (such as with the new fiber cable currently being installed between New York and London) will likely result in more such crashes or perhaps cause something truly catastrophic in global markets at some point which could set off an economic collapse. He suggests that rather than take the wait and see approach, it would be better to create teams of computer scientists, economists, mathematicians, and perhaps others, to study the virtual ecosystems that are being built to better understand what is really happening, and perhaps, to build in safeguards to keep runaway systems from destroying the global economy.
Credit: CC0 Public Domain As part of their research, the team built a storm simulator to calculate the total electrical potential of a storm based on the drop in muons detected. They report that their simulator showed the December storm had a 1.3-billion-volt electric potential. More information: B. Hariharan et al. Measurement of the Electrical Properties of a Thundercloud Through Muon Imaging by the GRAPES-3 Experiment, Physical Review Letters (2019). DOI: 10.1103/PhysRevLett.122.105101 GRAPES-3 muon telescope (foreground) with an artist’s view of lightning strikes. Credit: Pranay Godawat/ GRAPES-3 experiment Russian scientists on the verge of solving the ‘muon puzzle’ Citation: Researchers use muon detector to measure electric potential in a thunderstorm (2019, March 19) retrieved 18 August 2019 from https://phys.org/news/2019-03-muon-detector-electric-potential-thunderstorm.html A team of researchers from several institutions in India and Japan has found that it is possible to use a muon detector to measure electric potential in thunderstorms. The paper is published in the journal Physical Review Letters. The researchers explain that they noticed muon detection levels drop during thunderstorms, and used that information to calculate electric potential in thunderstorms. Explore further Lightning bolts that flash across the sky are ample evidence that storms produce electricity. Over the past several decades, scientists have sent balloons and planes into storms to learn more about what goes on inside of them. But the sensors used in such efforts have only been able to capture data about very small parts of storms. In this new effort, the researchers developed a way to capture one critical measurement of an entire storm—its electric potential.The electric potential of a storm is defined as the collective amount of work that would be required to move its electrons from one part of a cloud to another. In thunderstorms, the electric potential arises as positively charged water droplets rise and negatively charged droplets sink, and the air between them becomes conductive. Because of their electrical activity, thunderstorms can have an impact on muons, forcing them to lose energy, which prevents muon detectors from detecting them.Muons are one of a type of tiny particles that result when cosmic particles slam into the atmosphere and break apart into millions of bits of debris—they constantly rain down from above. Scientists have built muon detectors to study them. One such facility is the GRAPES-3, located in India. It has 400 muon detectors located on the ground, covering approximately 25,000 square meters. Together, they detect millions of muons every minute. The researchers with this new effort began monitoring changes in detection levels when they noticed that the levels fell when thunderstorms were overhead. They report that they monitored and studied changes to such levels over the time period April 2011 to December 2014. During one particularly large storm that occurred on December 1, 2014, muon levels dropped a full 2 percent. © 2019 Science X Network Journal information: Physical Review Letters This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
Who could have ever thought that the strains of Costa Rican music could merge in with the melodies of Iran and create some magic? Meet Jorge Strunz and Ardeshir Farah. The two musicians have been performing together since 1980.Bringing in the best from their diverse cultural roots in Costa Rica and Iran, they have created an eclectic blend of music adding their own special touch to the traditional acoustic guitar. Merging Afro-Caribbean, Latin American, Flamenco, Middle East and Jazz influences, their album Also Read – ‘Playing Jojo was emotionally exhausting’ Heat of the Sun spent four months in the top 10 of the World Music Charts and got them a Grammy nomination.The musicians are on their India tour and are raring to give the Capital a taste of what makes these Grammy nominees the talk of town. Millennium Post caught up with the duo to discuss where it all began for Strunz and Farah.How did it all start? How did you meet and decide to perform together?Jorge was looking for someone to form a guitar duo with and a mutual friend (a Greek/English guitarist) arranged an introduction. We were playing very fast and difficult pieces like Monty’s Also Read – Leslie doing new comedy special with NetflixCzardas at top speed and in harmony within hours of meeting each another. Merging the sounds from Costa Rica and Iran — how did that happen?It happened quite naturally. Since those are our roots, those flavours emerged and they simply worked well together. For example, on the album Guitarras, we did a piece entitled Mirage with the legendary Iranian singer Heyadeh. This was on the one hand very Iranian, but on the other, the rhythm Jorge played behind it was completely Latin folk. It worked very well, adding a unique propulsion to the piece. Tell us about the making of Heat of the Sun…We were in a transitional state with the band and we went into the studio and made it! As is usually the case, the music had already been performed in public at shows and so it was a natural next step to record the music. What was the thought behind it?The heat and passion of the title piece, among others. What projects are you working on right now, and tell us about the ones in the pipeline…We’re taking our time on a new project. It’s been three decades and counting…what lies ahead?We’ll play until we drop! Playing is what we do best!DETAILWhere: Siri Fort AuditoriumWhen: 5 DecemberTime: 7 pm onwards Passes available at Rhythm CornerCost: Rs 500 onwards
The event will be inaugurated by Krishna Dutt Paliwal and Divik Ramesh on 6 Sep at Triveni Auditorium. Harisuman Bisht, Secretary of Hindi Academy said, ‘We tried to get the entire famous languages poet together, somewhere we are successful in our work. These languages belongs to the Ashtam Suchi in our country. We are looking forward for this’. The poets participating in the event are – Makrand Pranjpey (English), Rafeeq Raj (Kashmiri), Talib Rampuri (Urdu), Parmita Sathpati (Odiya), Aanido Chaki (Bangla), RajuRam (Rajasthani), Mithlesh Srivastav , Ekant Srivastav, Pratap Singh, Shyam Sakha Shyam and Soumitra Mohan (Hindi), Saiman Martin (Marathi), Deena Shah(Gujrati), Satya Ashokan(Tamil), Remika Thapa(Nepali), Amarjeet Ghumman(Punjabi), Vijay Kumar Karan(Sanskrit), Mohan Himthani (Sindhi), Keki. Also Read – ‘Playing Jojo was emotionally exhausting’NDaruwala (English), Nand Singh Barkala (Assamese), Rashida Banki(Urdu), Vishnu Surya Wagh (Konkani), Lalchenba Matayi (Manipuri), Nivedita Jha (Maithali), Dharmendra Kumar (Sanskrit), N Krishna Rao (Telegu), Padma Sachdev (Dogri), Manprasad Subba (Nepali), Ravel Singh (Punjabi), Jaya Jadhwani (Sindhi), Vishwa Deepak, LeelaDhar Jagudi, Rekha Vyas, Damodar Khandse, Udhbhrant and Shivkumar Bilgrami(Hindi).When: 6 – 7 September Where: Triveni Auditorium, Tansen Marg
Akashdeep Singh scored a fabulous field goal to guide India men’s hockey team into the finals of the Asian Games after a gap of 12 years with a 1-0 win over hosts South Korea at the Seonhak Hockey Stadium here on Tuesday.After squandered at least three gilt-edged chances to take the lead in the first two quarters, Akashdeep (44th minute) received a superb through ball inside the striking circle and without turning he flicked the ball through his legs in spectacular style into the goal past the South Korean custodian Myungho Lee just one minute before the end of the third 15-minute quarter. Also Read – Khel Ratna for Deepa and Bajrang, Arjuna for JadejaThe Indian men’s hockey team, which last made it to the final of the Asiad way back in 2002 Busan Games, will now face the winner of the other semifinal between arch-rivals Pakistan and Malaysia in the summit clash on Thursday with the title winners grabbing a direct berth in the 2016 Rio Olympics.The victory was India’s eighth against Korea in the Asian Games in 14 games, against two losses, and was the 29th overall in 72 matches in all competitions. Also Read – Endeavour is to facilitate smooth transition: ShastriThe win also helped India reach the final, assuring them of at least the silver medal, for the first time since the 2002 Busan Games. They did not make the semis in 2006 at Doha and then four years ago were shocked by Malaysia in the semi-finals.The Indians were by far the dominant side on display against Korea in the entire 60 minutes on Tuesday and controlled the proceedings from the word go.The Koreans played catch-up hockey throughout the match but failed to break the resolute Indian defence.There was hardly any clear scoring opportunity for the Koreans, whereas India threatened the opponent goal throughout the encounter.There was plan, purpose and poise in India’s display and the major difference was the defense which held well right through.