UK-based Flightglobal, a Reed Business brand and aviation industry title, takes the prize for the most channels analyzed in a single report—19. An average of 3.8 channels per brand are analyzed in each report, says BPA. The Brand Report got off to a slow start, however. A beta version was released in late 2009 when early adopter Stamats Business Media was the first to complete a test report for its Meetings West brand. “This new audit tool will help our advertising customers quickly and thoroughly determine the depth and scope of the media buy within a given brand needed to achieve their mar/com objectives,” said Stamats president Tim Fixmer at the time. By late 2010 about a dozen publishers were readying December brand reports. And by early 2012 that had only grown to just under 60.That the number of brands using the report has quadrupled points to not only the growing number of platforms publishers are leveraging for their content, but the lack of audience overlap across them. There are a variety of signals that point to the growing importance of measuring and tracking audience across a brand’s platform. On the ad side you have the explosion of marketing services and on the audience side there’s the continued push for integrated databases.Another indication could be the sudden and rapid increase of brands utilizing BPA‘s Brand Report. In the last year, the number of titles reporting cross-platform audience metrics has more than quadrupled. A total of 295 titles are now reporting their audience metrics across channels. According to the BPA, the healthcare category has the most titles, at 87, using the report, followed by manufacturing (38) and legal & financial services (33).
Raspberry Pi wants to inspire young people to start technology careers. User-focused lessons on how to write letters or enter data on Excel spreadsheets may be fine but the devices will place students on a learning and discovery track closer to computer science than end-user skills. The students would receive these credit-card sized computers and courses would be structured around their use. A posting on the Raspberry Pi blog this week revealed the announcement that the computers are almost ready, seen as good news by many who have been watching for progress updates. The posting said the first finished circuit boards had arrived and that test versions are to be put through electrical, software and hardware testing. If all goes well, volume production will kick in and orders for the computers will also be taken early next month.This week’s arrival of the circuit boards is treated as a milestone, as the bare bones circuit boards are the first to be populated with all the components to go into the finished product. Mice, keyboards, network adapters and external storage connect via USB hub. The computer can be plugged into a TV or monitor and keyboard. Explore further 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. One of the very first boards off the line More information: www.raspberrypi.org/faqswww.raspberrypi.org/archives/422 © 2011 PhysOrg.com (PhysOrg.com) — A $25 computer targeted to help young people learn about computers beyond uploading pics and downloading documents is about to start volume-production in January. The Raspberry Pi project, a UK-based foundation, will place the computer by the same name, Raspberry Pi, on general sale. The principle behind the project is that students today may know how to create documents and presentations but far less about fundamental systems architecture and systems development. Citation: Foundation readies $25 computer to seed tech talents (2011, December 24) retrieved 18 August 2019 from https://phys.org/news/2011-12-foundation-readies-seed-tech-talents.html The $25 educational PC Raspberry Pi beta board, populated The Raspberry Pi Foundation is a UK-registered charity which exists to promote the study of computer science and related topics. As such, it has sought to make the devices as affordable as possible. The Register earlier this year said that the team behind the computer has spent months hunting for components that meet the right balance of cost with quality.The device uses SD cards for storage and runs on a 700MHz ARM processor. Python provides the main programming language.The finished product will actually be offered in the form of two models, one for $25 Model A, and one for $35, Model B. The Model B version includes 10/100 wired Ethernet.”Once we’re happy that this test run is fine, we’ll be pushing the button immediately on full-scale manufacture in more than one factory,” according to the blog. The first batch of 10 boards will be auctioned off to the highest bidder and the devices will go on general sale in January.The computer can be used for spreadsheets, word-processing games and can play high-definition video. “We want to see it being used by kids all over the world to learn programming,” according to the Raspberry Pi team.
Changes in optimized traffic in the central London subway network after the removal of the station “Bank” (black node). The corresponding costs are γ= 2 (A) and γ= 0.5 (B). Nodes and edges that show an increase (decrease) in traffic appear in red (blue), where their size and thickness correspond to the magnitude of increase (decrease). Nodes and edges with no traffic changes appear in white and black, respectively. Passenger source–destination pairs are identical to those of Fig. 3 [cf. paper], except for the removal of pairs starting or ending destinations in Bank. Copyright © PNAS, doi:10.1073/pnas.1301111110 Finding a single optimal route is easy, but optimizing the combination of multiple routes is a challenge found in a wide range of applications including Internet instant messaging, peer-to-peer networks, subway traffic, airport flight management, water distribution systems, sensor deployment, military convoy logistics, and trip planning. Historically, due to the computational complexity of deriving a global path optimization (that is, one that simultaneously considers all path possibilities), existing routing algorithms typically optimize each paths in isolation. As a consequence, the resulting solutions are less than optimal. Recently, however, scientists at Aston University, United Kingdom and The Hong Kong University of Science and Technology used the physics of interacting polymers (large molecule composed of many repeated subunits, known as monomers) and disordered systems to analyze macroscopic properties of generic path optimization problems. By so doing, they derived a simple yet global, routing algorithm capable of simultaneously considering all individual path alternatives. The researchers then demonstrated the algorithm utility by applying it to Internet-like random graphs, travel on the London Underground, and the global airport network. Moreover, their analysis revealed phase transitions, scaling laws, non-monotonic growth (that is, not always stable or increasing), and other new routing phenomena related to physics. Explore further © 2013 Phys.org. All rights reserved. Removing ‘black sheep’ could make Internet run more efficiently Research Fellow Chi Ho Yeung discussed the research he and his colleagues, Profs. David Saad and K. Y. Michael Wong, conducted – and the challenges they face – with Phys.org. “While, employing tools in physics to solve the system analytically was indeed our most difficult task,” Yeung tells Phys.org, “the analogy between polymers and paths is actually easy to understand. A polymer is a long molecule chain likes a string with two ends,” he illustrates, “Suppose I represent my travel path by a polymer: the two ends will be fixed representations of my starting point and destination, and the polymer body will be flexible depending on my path choice. If every traveler represents their path this way, we’d have a system of polymers on a transportation network – meaning that to suppress congestion, we’d introduce a repulsive force between polymers to discourage users using the same route. On the other hand, to encourage passengers share their path we’d introduce an attraction.”Turning now to their analytic work, Yeung points out that polymer paths are non-local variables, which are more difficult to analyze compared to local variables and interactions in conventional physics models. In addition, he notes that all polymers share the same network infrastructure and any two of them may have overlapping paths. “In our transportation network, when polymers overlap they either interact through an attraction or repulsion. It is thus equivalent to say that any two polymers may interact,” Yeung continues, “and the extent of that interaction depends on the extent of overlap, which is again a non-local consideration regarding all polymers. With all these complications, we had to select the best paths out of all possible individual choices as well as their mutual overlapping.” Compared to ordinary polymer systems (which do not allow overlap), they researchers had a much larger pool of possible states, and thereby a much more difficult question to solve. “After deriving our theoretical results,” Yeung adds, “we obtained the algorithm directly – and testing it on several datasets, found very good results. Once the system was analytically solved, it was straightforward to find its macroscopic properties, such as average path length and energy, by ordinary physics techniques in our area.” One key insight the scientists had, says Yeung, was that while some may think that the shortest path is always the best choice, this is not the case – and in fact, usual choice of going through the shortest path is a bad one when everyone takes the same route. “This isn’t difficult to understand, as some observers may have already noticed. For example,” Yeung illustrates, “during peak hours, some popular routes which lie on the shortest path may be overloaded, causing delays and making this path slower than a slightly longer one.” Yeung points out that their simulations with the London metro data show that – compared to when all passengers travel through the shortest path – if they introduce a repulsive force between passenger paths, and if passengers follow the suggested path, 20% of the assumed cost can be saved at a price of only 6% increase in average path length. “On the other hand,” Yeung continues, “although congestion does not occur in off-peak hours, the shortest path is still a bad choice, because the whole network has to remain active even for reduced usage on the less popular routes. Suppose we encourage off-peak commuters to travel on some common routes and share a large part of their journeys; then, the less popular bus routes or train lines can be discontinued which saves a lot of energy.” Yeung adds that their results show that they can obtain such optimized shared path configurations through the analogy to an attractive polymer system.Other than these results, the scientists also found that when they gradually change the polymer interaction from slightly repulsive to slightly attractive, there is a sharp increase in the number of idle nodes. “This is similar to a discontinuous phase transition observed in other physical systems,” Yeung says. “Surprisingly, while the average path length does not change much, it does have an important implication on transportation or communication networks – that is, one can greatly increase the number of idle nodes without significantly lengthening the average path length, by introducing a slight attractive force between passenger paths. This may save a lot of resources in sparse traffic scenarios.”A key aspect of the researchers’ results was demonstrating the algorithm’s efficacy by applying it to random graphs resembling Internet overlay networks – that is, computer networks built on top of another network, in which nodes can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. “Networks representing websites interconnected by hyperlinks, or friends linked by instant messengers, are usually not bounded by physical location,” Yeung notes, “and are well described by some specific random structures. We show in a simple random network how we can find the best choice of communication paths according to the attractive or repulsive strength we introduced.”In the case of repulsion, Yeung explains, individual communication paths avoid each other and at last almost everyone has its own path not overlapping with the others. In the case of attraction, the communications go through a small common region of the network, sharing their paths and leaving a lot of other nodes and links idle. “If we consider the idle nodes as routers,” he points out, “a lot of energy can be saved by switching them off.”The researchers also applied their findings to travel on the London Underground network based on Oyster card data. “If we compare to the case where everyone takes their shortest path,” says Yeung, “our simulations show substantial improvement on the London Metro network. Again, at a price of only 6% increase in average path length, 20% and 4% of the assumed cost are saved on the London metro network when one aims to balance or consolidate traffic, respectively. Of course, in practice,” he acknowledges, “some experienced users would adopt a smarter route than the shortest path and the benefit from our algorithm would be less. However, I believe that in many transportation or communication networks there is still a large room of improvement in terms of energy saving if individual paths are well coordinated.” Yeung adds that they did a very similar experiment, and obtain a similar result, in the global airport network.Regarding other innovations that the scientists might develop and apply to the current experimental design, Yeung says that since physicists usually start with a generic model of physical systems, they’ve also assumed a model of interacting polymers which accommodates different type of interaction. “It turns out that we obtain a single algorithm which achieves various goals by tuning a single parameter controlling the attractive and repulsive strength between polymers,” he explains. “Indeed, our approach can take into account interactions other than attraction and repulsion, and which may have other interesting applications. We welcome networking experts to suggest other specific routing problems which our algorithm may be able to tackle.On the practical side, Yeung continues, one idea may be to develop a real-time application, based on their algorithm, to globally coordinate paths for individuals who start their journey at roughly the same time. “It’s not the same as the usual route-finder applications that simply identify the shortest path for individuals without their interactions with others,” he explains. “Rather, the envisioned application would coordinate routes for many individuals who travel at the same time in order to achieve goals like balancing highway or tunnel usage, or to encourage train or plane sharing in off-peak hours or seasons.”Yeung also describes the planned next steps in their research. “Our path solution is static.” He notes. “In other words, it provides an optimized path configuration given a set of destination pairs, and so suits many applications – but not those where the amount of traffic between individual destination pairs is rapidly changing. The next step is, perhaps, to develop routing algorithms based on our framework which address a dynamical routing task.”Yeung notes that other areas of research that might benefit from their study. “Our generic routing algorithm is applicable to any application that involves the path selection and coordination of individual paths,” he tells Phys.org. “I hope our work can contribute to routing problems in transportation and communication networks, as well as sustainability research where the fixed infrastructure of existing transportation or communication systems is better utilized, thereby reducing the needs for further construction. In a more general respect,” Yeung concludes, “I hope that our work demonstrates the power of rigorous physical tools when applied to interdisciplinary areas outside the realm of physics.” More information: From the physics of interacting polymers to optimizing routes on the London Underground, PNAS Published online before print July 29, 2013, doi:10.1073/pnas.1301111110 Optimized traffic on the London subway network. A total of 218 real passenger source–destination pairs are optimized, corresponding to 5% of the data recorded by the Oyster card system between 8:30 AM and 8:31 AM on one Wednesday in November 2009 [cf. citation (35) in paper]. The network consists of 275 stations. (B). Red nodes correspond to stations with nonzero traffic. The size of each node and the thickness of each edge are proportional to traffic through them. (Insets) Zoomed-in views of the central region. Nodes are drawn according to their geographic position. Copyright © PNAS, doi:10.1073/pnas.1301111110 Journal information: Proceedings of the National Academy of Sciences Citation: Planes, trains and molecules: Deriving a generic routing algorithm from the physics of interacting polymers (2013, August 20) retrieved 18 August 2019 from https://phys.org/news/2013-08-planes-molecules-deriving-routing-algorithm.html 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.
Kolkata: In a shocking incident, an eighty-year-old man was beaten up by his son in Ashoknagar.Locals informed that Maniklal Biswas (80) had given his wife a crumb of sweets, due to which his son Pradip slapped him repeatedly. Sources informed that Pradip is a staff of the Ashoknagar-Kalyangarh Municipality. Local people said that on Friday, the day of Dashami, Maniklal’s wife had touched his feet as a traditional gesture. In return, he had given her a bite of the sweet which he was having. Also Read – Rain batters Kolkata, cripples normal lifeBut before she could eat, Pradip arrived. Seeing her son she went towards the bathroom and handed over the sweet to Maniklal in fear. But Pradip somehow saw this. He was furious as his mother has high blood sugar and hence needs to refrain from sweets. He immediately dragged his father out of the room and started slapping him. Despite Maniklal apologising, Pradip didn’t bother to pay heed to him and kept on slapping his father. Some neighbours heard loud voices. When a neighbour went to see what was happening, he saw Pradip slapping Maniklal. He immediately took out his smartphone and recorded the whole scene. Later, the video was uploaded on Facebook. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedAs the video soon went viral, some police personnel noticed the footage. Wasting no time police started to figure out the area where the incident had happened. In the meantime, some of the locals also informed the police regarding the same. Immediately, Ashoknagar police station arrested him. Maniklal informed that he was being tortured regularly by his son. Though Pradip tried to lighten the matter by seeking apology from his father, the neighbours were not convinced at all. When police arrived, Maniklal gained courage to speak up. He himself told the police what his son did to him. Hearing the whole thing, locals tried to beat him up but police obstructed them. He was immediately apprehended.
Friday, November 23, 2018 Travelweek Group Share Posted by YHM’s makeover includes new Kid’s Zone and ‘selfie’ walls Tags: Airport, Hamilton HAMILTON — John C. Munro Hamilton International Airport (YHM) is sporting a brand new look these days after undergoing a terminal refresh.The airport partnered with The Laundry Design Works, a local design firm from Hamilton, to introduce a revitalized look that would reflect the growth happening both at the airport and throughout the city of Hamilton.To achieve this, The Laundry painted the walls in blue and green, both of which are used in the airport’s logo, and also included travel quotes on the walls to provide the perfect backdrop for ‘selfies’. These are visible throughout the airport, both pre- and post-security.Plus, an all-new Kid’s Zone has been relocated to the front of the Departures Lounge, featuring a window view of arriving and departing aircraft. The fun space, which sits atop soft artificial turf, offers new toys, games and a brand new flatscreen TV to ensure that every young passenger is entertained.Considered North America’s fastest growing airport, YHM served nearly 600,000 passengers in 2017, a year-over-year increase of 80%. << Previous PostNext Post >>