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Predicting collective online behavior

June 14, 2013 ? A new study shows that small websites, in terms of daily user flux based on number of clicks, have a disproportionally high impact when it comes to traffic generation and influence compared to larger websites. These findings, about to be published in EPJ B, have implications for estimating the value of sites and related advertising revenue. They result from the work of Lingfei Wu from the City University of Hong Kong and Jiang Zhang from the School of Management, at Beijing Normal University, China.

Previous studies have analysed hyperlinks, while individual browsing records provide insight for understanding local surfing behaviour. However, they fail to provide information on more internet-wide collective browsing behaviour. Hence, to understand the complex interactions between websites, it is necessary to analyse the transportation of traffic, referred to as the flow of clickstreams between websites.

In this study, the authors analyse the clickstream networks composed of the 1,000 most popular websites. They rely on models of clickstream networks based on so-called Markov matrices. They then validate their findings through network flow analysis, tracking users' movement.

Wu and Zhang found that the accessibility of websites in the clickstream network increases more slowly than the level of traffic for the sites studied. Unlike previously thought, this study based on clickstreams reveals that the web is not solely dominated by a few hubs. And relatively small sites have a greater chance of acquiring popularity than larger ones. They do not follow the so-called "rich-get-richer" paradigm, suggesting that user navigation increases the inequality of traffic among websites.

This study o?ers a more precise calculation of the impact of sites for calculating advertising rates, for example, based on the circulation of clickstreams, instead of being based on traffic.

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The above story is reprinted from materials provided by Springer Science+Business Media.

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Journal Reference:

  1. Lingfei Wu, Jiang Zhang. The decentralized flow structure of clickstreams on the web. The European Physical Journal B, 2013; 86 (6) DOI: 10.1140/epjb/e2013-40132-2

Note: If no author is given, the source is cited instead.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_technology/~3/YmYKofZH-ME/130614100753.htm

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Seattle Mayor Mike McGinn Talks Climate and Carbon

Copyright ? 2013 NPR. For personal, noncommercial use only. See Terms of Use. For other uses, prior permission required.

IRA FLATOW, HOST:

This is SCIENCE FRIDAY, I'm Ira Flatow. He's been called Mayor McSchwinn for riding his bicycle to work. He's pledged to turn his town of Seattle into a model for what one city can do to lower its carbon footprint, and for good reason. As the climate changes, coastal cities like Seattle are challenged by rising sea levels.

Seattle saw its highest tide on record last December. So what's a Seattle mayor to do? Well, we're going to ask him today. We're at the Pacific Science Center in Seattle, and Seattle Mayor Mike McGinn is here. Welcome to SCIENCE FRIDAY.

MAYOR MICHAEL MCGINN: Glad to be here.

FLATOW: Did you ride your bike here?

MCGINN: Yes.

FLATOW: Do you ride it every day?

MCGINN: Pretty much.

FLATOW: Is it symbolic of something?

MCGINN: It's a great way to get around.

FLATOW: Tell us what you think that you can do as a mayor to encourage people to be aware of climate change and to participate in actually doing something about it.

MCGINN: Well, you know, the question you were raising in the intro: What can a city do about climate change, so the changes that are required are at all levels of government? So we have to take a look at the local level, what are the things we control and have the greatest influence over. Land use is one of them, what types of buildings you can build where.

Our local streets, how we design them to support walking, biking and transportation - and buses as opposed to driving is another one. And so those are things we focus on in terms of the policies we set, and they can make a big difference. Incentives for people in their home energy use and green buildings.

And then at the - to try to influence the state and the federal government. We have a major issue here, which is we're a - they're going to be shipping coal through Seattle from the Powder River Basin in Montana, Wyoming, to China. And, you know, that's something I think the state and the national government need to take a look at. That's not very good national energy policy.

FLATOW: Is there any way that you can influence that shipment?

MCGINN: Well, here's what we're doing. And just to state again what the problem is, since we're on national audience, we're somewhat more familiar with it here - there's huge reserves of coal in Montana and Wyoming in the Powder River Basin. And what's been happening is they are selling less coal. You know, the electricity producers are going to other sources. So they need new markets.

So they're looking to China to do it. So they're talking about shipping, you know, 18 trains a day worth of coal from Montana, Wyoming, to western ports to head over to China. And it's - more carbon emissions would result from that coal than the carbon emissions that would result from the fossil fuels that come from the Keystone Pipeline, which is, as you know, a national issue as well.

So I've been working with tribal leaders and other city leaders up and down the train line to talk about the impacts on local communities, which would be substantial. The trains lose about two percent of their load along the way, they're uncovered coal cars; very significant traffic impacts, economic impacts, health impacts, as well, of course, the impacts of the pollution coming back across the Pacific Ocean towards us, the mercury in fish, the global warming pollution.

So we've put together a leadership alliance against coal, and we're going to do our best to convince the decision makers to make a smart decision about that.

FLATOW: Back on the other coast, another mayor you might be familiar with, New York City Mayor Michael Bloomberg, announced a $20 billion plan to fortify the city from sea level rise, and amazing things he's called for, levees and sea walls, a high price tag. Does your city face those kinds of challenges too, of holding back the sea? And are you planning for those?

MCGINN: Yes, and in fact we're replacing our sea wall. We have one on our - on Elliott Bay. It was built about, you know, 50-plus years ago, wasn't built for earthquakes, and one of the things we had to do was look at how tall do we have to build it for the future, because we want it to last 50 to 75 years. And a lot of our industrial areas are built on the tide flats of the Duwamish River. So we're going to have to look at how we protect that as well.

And kind of a lesser known problem, but the storm water outflows - you can build a sea wall, but the water will back up the storm water outflows into the city too. So there's a host of issues in adaptation.

FLATOW: If you're like to ask the mayor a question, we have two microphones open here on both sides of the room, and also you can tweet us @scifri @-S-C-I-F-R-I. The city council has a plan to make the city carbon neutral by 2050. Do you support that plan?

MCGINN: I do. Here's the thing though. Whether you're talking about 80 percent reductions by 2050 or carbon neutrality by 2050, that means you have to do a lot in the near term. And probably the first steps for any target are the same, and they need to be substantial. So very supportive of that, and - but the harder part is not what the end outcome should be but what can we do immediately that sets us on a path towards that outcome.

FLATOW: And for Seattle, what would carbon neutral mean? How do you balance the carbon there?

MCGINN: Well, you really have to look for very deep reductions in building energy use. And we have here a new building called the Bullet Foundation's Headquarters, the Bullet Center, which is actually - can live off of the energy that hits its roof from the sun, which is pretty dramatic. So that's - those are the types of deep reductions in building energy use we're talking about.

In terms of getting people around, you really have to start building communities that have all the uses people need that are connected within walking and biking distance or connected with electrified transit, and those are big changes as well. And then of course there's always just a certain amount of fossil fuel use that's very hard to get rid of, so you'd have to find ways to offset the remainder by taking other actions that would - might help pull some carbon out of the atmosphere.

FLATOW: In fact, is it true - is it not true that you've made a push to divest the city's pension funds from fossil fuel investment?

MCGINN: I did. Bill McKibben, whose 350.org came to town, gave a speech here at Benaroya Hall. And he spoke to a bunch of us that afternoon that were on our Green Ribbon Commission, which had come up with the plan to reduce our carbon emissions. And he spoke about why he was pushing for divestment.

And after I heard from him, I called my finance director into my office and asked him some questions about our finances, and we can and did divest ourselves immediately from our cash holdings. Far more complex will be getting out of our pension holdings. And that process is now underway. And I announced that night with Bill McKibben that we would start doing that, the first city in the country to do it.

We've gotten 10 other mayors so far to join us, and we're asking others to join as well. We don't expect that, you know, that that will make the fossil fuel companies stop drilling for, you know, fossil fuels or coal or digging it out of the ground, but it's a statement of our values and what we believe the future requires. Because the fact of the matter is, if you - we can get more and more efficient, and we're working on that in the city.

But if we're going to take massive amounts of coal out of the ground, for example, and ship it to China, that will swamp all of the efficiency savings and all of those land use savings we have. We really have to find a way not just to get more efficient and show a better way to grow economically and build great communities - we have to leave those fossil fuels in the ground.

Otherwise we will so overload the atmosphere with carbon that the consequences will be even more severe.

FLATOW: Let's see if we have a question from the audience there. Yes. Step up, please, step up to the mic.

UNIDENTIFIED MAN: Speaking of local initiatives, I'd like to give you an opportunity to address the question that stumped Al Gore: paper or plastic?

(LAUGHTER)

MCGINN: Oh, you know, bring your own. That's the correct answer.

(LAUGHTER)

FLATOW: Bringing your own to the supermarket, yeah?

MCGINN: Yeah.

FLATOW: Recyclable one. OK, let's - yes, ma'am, step up to the mic.

UNIDENTIFIED WOMAN: Hi. We banned plastic bags and we all bring our own now, and doomsday didn't happen. So I'm wondering: Would doomsday happen if we banned bottle water in the city?

MCGINN: You know, great question, and one of these things, as I have my bottle of water in front of me that I have not cracked and am feeling a slight bit of carbon guilt if I did.

I think that we need - we've got, in Seattle, we have incredible water. We have our own valley up in the mountains, the Cedar River Watershed. There's no logging in it. It's one of the cleanest water sources in the nation. And we deliver it to you really cheaply. So I'd encourage people in the city to not drink bottled water.

And the issue of a ban is probably one that maybe there's some city council members who'd like to start working on that one.

FLATOW: Do you find common cause with other mayors? Do you find that mayors are taking the leadership roles here?

MCGINN: Absolutely, and I - you know, I've got to sing the praises of my fellow mayors. You know, mayors are, I've discovered, I've just had this job for three years, and this is my first elected official job, I was an advocate in the community before that. Mayors are very close to the people.

We talked about delivering the water, the electricity. You've got to pave the streets. And we also are very close to the impacts on us of these changes that are coming at us due to climate change. And we have the ability to see a difference in our cities. You know, changing how we get around is great for our city's economic vitality, and people want to come here and be part of a walkable, bikable place with great transit.

People want to open up offices in energy efficient buildings. It's part of our appeal as a city of the future, this 50th anniversary of the World's Fair here. So it's good economically for us...

FLATOW: But there's got to be obstacles that you face.

MCGINN: There are huge obstacles, and the huge obstacles are change is always hard. We've got set patterns of doing things. But what I find is that mayors around the country are consistently leaders in innovative new approaches. The mayor of Indianapolis, a Republican, a war veteran, he wants to get his fleet fossil fuel free in Indianapolis.

So I went to my fleet, and I said, hey, we can't let a Republican beat a Democrat here.

(LAUGHTER)

MCGINN: Right? We've got the greenest fleet in the nation. We've been given that award multiple times. So we're not making as bold a claim as he is, but we're going to reduce our fossil fuel, a million gallon challenge about shifting off our fleet. And these - our fleet includes fire trucks, utility trucks, you know, the parking enforcement vehicles, police cars, lots of things.

But we're going to keep driving down our fossil fuel use, and in doing so we drive a market for new types of vehicles and more efficient vehicles, and that's something we can make a difference every day.

FLATOW: Can you bring more electric vehicles into town?

MCGINN: Absolutely. We've got a - if you're in Seattle, you see these three-wheel kind of scooter that our parking enforcement officers use right now. It's gas powered. We're going to switch those to electric powered, and it has a bike rack on the back so now that two people will go out to a neighborhood, one on the electric scooter, and then the other one will get on the bike, and they'll cover twice as much territory.

We have hybrid trucks for our utility trucks as well. So you don't have to leave the diesel engine running while you're using the lift, so all sorts of different things we're doing.

FLATOW: I have about 30 seconds. If you could - if I give you a blank check, what would you do with it? What's the one biggest thing you'd like to change?

MCGINN: Oh man, I think for this city our leading use, our leading fossil fuel emissions come from driving, so investing in walking, biking, transit, getting a really seamless transit network and seamless biking network throughout the city, as well as making the city more walkable, huge benefits to economic vitality, quality of life, health, pollution, that would be it.

FLATOW: Well, you certain are a walking, biking example of that.

(LAUGHTER)

FLATOW: Thank you very much, Mayor.

MCGINN: Thank you.

FLATOW: Mayor Mike McGinn, a Democrat, Seattle mayor right here at the Pacific Science Center. Thank you for taking time to be with us today.

MCGINN: Glad to be here.

FLATOW: We're going to take a short break, and when we come back we're going to take a journey to the center of your brain, no walking or biking required. So stay with us. We'll be right back after this break.

Copyright ? 2013 NPR. All rights reserved. No quotes from the materials contained herein may be used in any media without attribution to NPR. This transcript is provided for personal, noncommercial use only, pursuant to our Terms of Use. Any other use requires NPR's prior permission. Visit our permissions page for further information.

NPR transcripts are created on a rush deadline by a contractor for NPR, and accuracy and availability may vary. This text may not be in its final form and may be updated or revised in the future. Please be aware that the authoritative record of NPR's programming is the audio.

Source: http://www.npr.org/2013/06/14/191614356/seattle-mayor-mike-mcginn-talks-climate-and-carbon?ft=1&f=1007

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শুক্রবার, ১৪ জুন, ২০১৩

Veronica Mars Movie: Who's Coming Back?

Source: http://www.thehollywoodgossip.com/2013/06/veronica-mars-movie-whos-coming-back/

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Turkish PM makes concession to end protest

ANKARA, Turkey (AP) -- Turkish activists leading a sit-in were considering a promise Friday by Prime Minister Recep Tayyip Erdogan to let the courts ? and a potential referendum ? decide the fate of an Istanbul park redevelopment project that has sparked Turkey's biggest protests in decades.

In last-ditch negotiations after Erdogan issued a "final warning" to protesters, his ruling party announced early Friday that the government would suspend a controversial construction plan for Istanbul's Gezi Park until courts could rule on its legality. Even if the courts sided with the government, a city referendum would be held to determine the plan's fate, officials said.

The unilateral pledge aimed to cajole protesters into ending a two-week standoff that has damaged Erdogan's international reputation and led to repeated clashes with riot police. After initially inflaming tensions by dubbing the protesters "terrorists" and issuing defiant public remarks, Erdogan has moderated his stance in closed-door talks this week.

It remained far from clear, however, whether the overture would work. The park is one of the few green areas left in the sprawling metropolis of Istanbul and many protesters were still seething over the forceful operations by riot police that at times devolved into violent clashes with stone- and firebomb-throwing youths.

Such scenes prompted the European Parliament on Wednesday to condemn the heavy-handed response by Turkish police and sparked a heated riposte from Erdogan.

A May 31 police raid to clear out the park ignited demonstrations that morphed into broader protests against what many say is the prime minister's increasingly authoritarian style of government. Five people ? four demonstrators and a police officer ?were killed in the protests that spread to dozens of other cities.

The protests have centered lately on three cities: Istanbul, Izmir on the Aegean Sea coast, and Ankara, the capital.

Erdogan's opponents, including many protesters, have grown increasingly suspicious about what they call a gradual erosion of freedoms and secular Turkish values under his Islamic-rooted party's government. It has passed new restrictions on alcohol and attempted but dropped a plan to limit women's access to abortion.

Mobilizing instruments of democracy and the state ? the courts, and a referendum ? could shield the prime minister from accusations of an authoritarian response.

"Until the courts give their final verdicts, no action will be taken regarding Gezi Park," said Huseyin Celik, a spokesman for Erdogan's Justice and Development Party, after the meeting. "Even if the court ... is in favor of our government's decisions, our government will hold a referendum to see what our people think ? what they want and don't want."

The Taksim Solidarity group, two of whose members were in the meeting with Erdogan, has emerged as the most high-profile from the occupation that began last month. But it does not speak for all of the hundreds camping in the park. Many say they have no affiliation to any group or party.

Tayfun Kahraman, one of the Taksim Solidarity members who attended the meeting, said he believed Erdogan had offered "positive words," and that fellow activists would consider them in a "positive manner." But he said those in Gezi Park would "make their own assessments."

Suspicion within the park about Erdogan's tactics and motives remains widespread, and the protesters are firmly entrenched:

In recent days, the festive tent-village atmosphere ? with amenities like a medical station and library with donated books ? has been marked by nightly piano concerts.

"The prime minister calls the people he pleases to the meetings and says some stuff," said demonstrator Murat Tan. "We don't care about them much. Today, we saved the trees here but our main goal is to save the people."

Erdogan has pledged to end the protest, and has called his supporters to rally in Ankara and Istanbul this weekend. But those demonstrations could revive the discord between his conservative, Islamic base, and more liberal- and secular-minded progressives and others who are holed up in the park ? potentially torpedoing his own efforts to end to the showdown.

Analysts say the protests don't present a threat to Erdogan's tenure, but threaten his legacy. Some say he has ambitions to enter the history books as a contemporary answer to Mustafa Kemal Ataturk, the founding father of modern Turkey.

Erdogan has reiterated his support for Turkey's secular democracy in the face of the accusations of authoritarianism ? and sat in front of a portrait of Ataturk during the overnight talks at his residence in Ankara.

___

Eds: Onur Cakir in Istanbul and Jamey Keaten in Ankara contributed to this report.

Source: http://news.yahoo.com/turkish-pm-vows-gesture-aimed-122821230.html

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Open Road Acquires Jon Favreau's ?Chef' Starring Sofia Vergara, Robert Downey Jr

By Lucas Shaw

NEW YORK (TheWrap.com) - Open Road Films has acquired domestic distribution rights to Jon Favreau's "Chef," the studio announced on Wednesday. Favreau will direct the film from his own script about a chef who loses his job and decides to open a food truck.

Favreau will also star as the chef with Sofia Vergara, Scarlett Johansson, Robert Downey Jr. and John Leguizamo filling out the cast.

"Led by the wildly talented Jon Favreau, this is a very exciting project with a fantastic script and a truly incredible group of actors," Open Road CEO Tom Ortenberg said in a statement. "We are thrilled to be in business again with Aldamisa and to add this project to our 2014 slate."

Aldamisa financed the film, which begins production in July. Karen Gilchrist and Sergei Bespalov are producing. Open Road will release it May, 2014.

Ortenberg and Open Road colleagues Ben Cotner and Elliot Kleinbeg made the deal with CAA, which represented the filmmakers, and Jere Hausfater and Philip Elway of Aldamisa.

Source: http://news.yahoo.com/open-road-acquires-jon-favreaus-chef-starring-sofia-234314040.html

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'Space Odyssey' Author Inspires Imagination Research Center

The creative mind behind the communications satellite and "2001: A Space Odyssey" ? Arthur C. Clarke ? has now inspired an academic center dedicated to studying imagination. From sci-fi speculation to neurophysiological analysis, the Arthur C. Clarke Center for Human Imagination will create and sponsor multidisciplinary investigations into great leaps of human thought.

The center launched in May at the University of California, San Diego, which will operate the center in conjunction with the Arthur C. Clarke Foundation, an organization dedicated to Clarke's legacy.

A series of skyward-looking events kicked off the center's activities last month, culminating in a symposium on long-term space travel called Starship Century. There, sci-fi heavyweights such as Gregory Benford and Neal Stephenson traded ideas about interstellar journeys with scientists Freeman Dyson, Paul Davies and others. [A Look Back at 2001: "A Space Odyssey" (Infographic)]

Scientific imagination

The center will be dedicated "to finding out how imagination happens and to whom it happens," said Clarke Foundation executive director Monica Morgan. To do so, the center will collaborate with organizations such as the Smithsonian Institution and the National Science Foundation on research projects, seek grants to study imagination in science and the arts, and host public lectures and symposia, among other activities, she said.

"We're looking at imagination as a multi-disciplinary phenomenon," said Sheldon Brown, a U.C. San Diego professor of visual arts who will head the new center. That means the center's work will include "people from a wide range of fields, neuroscientists to astrophysicists to social scientists to artists and writers ? We're looking to find ways to find intersections between these different disciplines."

In Brown's own work, for example, he creates virtual works of art, then measures participants' neurophysiological reactions to them. He hopes to analyze, at the neuronal level, how his creations engage people's imaginations.

Science meets art

Clarke, one of the giants of science fiction and a visionary futurist, similarly spanned the hard sciences and speculative arts.

Perhaps most famously, Clarke wrote the book "2001: A Space Odyssey," and co-authored the film of the same name with director Stanley Kubrick, as well as penning classic sci-fi novels like "Childhood's End" and "Rendezvous with Rama." He died in 2008 at the age of 90.

Thanks to his training in engineering, Clarke made contributions to the real world of science and innovation, too. In a 1945 paper, he outlined the principles behind what would become geosynchronous communications satellites ? today, part of the reason everyone can keep a telephone in their pocket.

The idea for an imagination center originated in a conversation between Clarke Foundation chairman Tedson Meyers and Clarke himself 12 years ago about the best way to commemorate the author's varied legacy. Imagination emerged as the common theme, Morgan said.

Sci-fi greats

The foundation's leaders eventually realized they needed the resources of a major research university to fully investigate the topic. U.C. San Diego won the resulting competition based on its researchers' expertise in a variety of science, engineering and medical fields, along with allied creative arenas, Morgan said. Most notably, the school's Clarion science fiction writing program boasts a distinguished group of alumni authors, including Octavia Butler and Bruce Sterling.

Those sci-fi alums reflect the future-facing attitude of the university, said Brown. "There's this atmosphere of speculation about the future that is deeply ingrained at U.C. San Diego," he said. He also noted the school's recently launched Center for Brain Activity Mapping, and the university's collaborations with the nearby Salk Institute, Scripps Research Institute and others.

Next year, the imagination center will again host a big-tent event, this time investigating how knowledge is created and disseminated in the changing culture of online publishing and crowdfunding. In the meantime, the organization will work to rapidly build up its infrastructure and labs to better study the kind of imagination that Clarke exemplified, Brown said.

Follow SPACE.com on Twitter @Spacedotcom. We're also on?Facebook?and?Google+. Original article on SPACE.com.

Copyright 2013 SPACE.com, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://news.yahoo.com/space-odyssey-author-inspires-imagination-research-center-134222536.html

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বৃহস্পতিবার, ১৩ জুন, ২০১৩

Watch PD Sports Insider at 12:30 p.m.: Joe Kotoch to talk NBA Draft; Mary Kay Cabot on the Browns

What are other options at No. 1 for the Cavaliers other than Nerlens Noel? Did the Indians salvage their road trip with two wins over the Rangers?
Today, live at 12:30 p.m., on PD Sports Insider, join cleveland.com's Glenn Moore and The Plain Dealer's Bud Shaw as they talk about the Browns with Mary Kay Cabot. They will also chat with probasketballdraft.com's Joe Kotoch about the NBA Draft.Be sure to Like PD Sports Insider on Facebook.

Note: To turn off audio alerts in the chatroom, click on the round button on bottom left of the chat room, then preferences. Uncheck all audio options and save.

About the show: PD Sports Insider airs live every Thursday at noon. Co-hosted by Bud Shaw, Dennis Manoloff and cleveland.com's Glenn Moore, the show features a timely and lively debate of the biggest sports topics of the day and gives readers a chance to interact directly with PD sportswriters and columnists.

Viewers have to the opportunity to ask questions and post comments in a live chat room during the show. They can also email their video questions during the week.

Fans who miss the live show can watch the archive, available a few hours later. Stay tuned for the next episode on today at noon.

Source: http://www.cleveland.com/pdsportsinsider/index.ssf/2013/06/watch_pd_sports_insider_at_123_3.html

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