Department of Mathematics
 Search | Help | Login | pdf version | printable version

Math @ Duke





.......................

.......................


Yunliang Yu, IT Senior Manager

Yunliang Yu

Open source is an investment in the future.

FDS Motto: we serve and empower the faculty.

Contact Info:
Office Location:  029D Physics
Office Phone:  (919) 660-2803
Email Address:   send me a message
Web Page:   http://www.math.duke.edu/~yu

Office Hours:

12:01AM - 12:02AM every other day except today.
Not by appt :-)
Specialties:

Mathematics
Recent Publications

  1. Y. Yu, test 123 (March, 2010). [PNG, PDF]

Famous Sayings:
Your dream will come true, if you eat your soup.
    --- Angela Yu
Don't be a turkey; read a book.
    --- Christina Yu
Security = avoid "unexpected inputs for unintended results".
    --- moi
Attitude is half reality.
    --- me?
To learn and practice what is learned from time to time is pleasure, is it not? To have friends from afar is happiness, is it not? To be unperturbed when not appreciated by others is a gentleman, is it not?
    --- Kungfu Zi
Better to light a candle than to curse the darkness.
    --- Chinese Proverb

mathprograms.org, academicjobsonline.org, mathjobs.org, ShortURLs, sharedworkingplace.org, chinesecalligraphyandwoodcarving.

/. headline news :-)

  • FBI Director: Without Compromise on Encryption, Legislation May Be the 'Remedy'
    2018-07-19T23:00:00+00:00
    An anonymous reader shares a report: FBI Director Christopher Wray said Wednesday that unless the U.S. government and private industry are able to come to a compromise on the issue of default encryption on consumer devices, legislation may be how the debate is ultimately decided. "I think there should be [room for compromise]," Wray said Wednesday night at a national security conference in Aspen, Colorado. "I don't want to characterize private conversations we're having with people in the industry. We're not there yet for sure. And if we can't get there, there may be other remedies, like legislation, that would have to come to bear." Wray described the issue of "Going Dark" because of encryption as a "significant" and "growing" problem for federal, state and local law enforcement as well as foreign law enforcement and intelligence agencies. He claims strong encryption on mobile phones keeps law enforcement from gaining access to key evidence as it relates to active criminal investigations. "People are less safe as a result of it," he said.

    Read more of this story at Slashdot.

  • Microsoft's Plan To Try To Win Back Consumers With 'Modern Life Services'
    2018-07-19T22:20:00+00:00
    It's not a secret that Microsoft hasn't been winning the hearts and minds of consumers lately. Killing off products like the Groove Music service, Microsoft Band fitness tracker, and Windows Phone have left many questioning whether Microsoft's grand plan is to simply focus on business users and leave consumers to its competitors. But at the company's Inspire partner show this week, Microsoft execs told partners that Redmond isn't giving up on consumers. From a report: Yusuf Mehdi -- whose new title as of June 2018 became corporate vice president of Modern Life and Devices -- led a session at the partner show in Las Vegas, Nev., where he outlined the company's vision for what officials plan to christen "Modern Life Services." Microsoft's core value proposition is productivity, he said. Microsoft is targeting so-called "professional consumers" with these services, Mehdi said. Microsoft officials believe because the company already "owns the work calendar with Outlook," that it has a foothold in working to blur the line between consumer and commercial activities. What, exactly, will qualify as a Modern Life Service? Mostly they will be apps, services, and features that Microsoft already makes available or soon will in Windows, Outlook, and PowerPoint, but which officials will attempt to position as well suited to the needs of professional consumers on Windows PCs, iPhones and Android phones.

    Read more of this story at Slashdot.

  • Senate Wants Netflix, Spotify To Send Out Federal Emergency Alerts
    2018-07-19T21:40:00+00:00
    Senators in Hawaii and South Dakota have introduced a bill, called the "Reliable Emergency Alert Distribution Improvement (READI) act, that would "explore" broadcasting alerts to "online streaming services, such as Netflix and Spotify," amongst other changes to the Emergency Alert System. TechCrunch reports: Some of the other things the bill touches on: - Users on many phones can currently disable federal alerts; they want to get rid of that option - Building a better system for reporting false alarms and figuring out what happened - Updating the system to better prevent false alarms, and to better retract them when they do happen

    Read more of this story at Slashdot.

  • Fukushima's Nuclear Signature Found In California Wine
    2018-07-19T20:57:00+00:00
    An anonymous reader quotes a report from MIT Technology Review: Is it possible to see the effects of the Fukushima nuclear disaster in California wines produced at the time? Today we get an answer, thanks to a study carried out by french pharmacologist Philippe Hubert and a couple of colleagues. "In January 2017, we came across a series of Californian wines (Cabernet Sauvignon) from vintage 2009 to 2012," say Hubert and company. This set of wines provides the perfect test. The Fukushima disaster occurred on March 11, 2011. Any wine made before that date should be free of the effects, while any dating from afterward could show them. The team began their study with the conventional measurement of cesium-137 levels in the unopened bottles. That showed levels to be indistinguishable from background noise. But the team was able to carry out more-sensitive tests by opening the wine and reducing it to ash by evaporation. This involves heating the wine to 100 degrees Celsius for one hour and then increasing the temperature to 500 degrees Celsius for eight hours. In this way, a standard 750-milliliter bottle of wine produces around four grams of ashes. The ashes were then placed in a gamma ray detector to look for signs of cesium-137. Using this method, Hubert and his colleagues found measurable amounts of cesium-137 above background levels in the wine produced after 2011. "It seems there is an increase in activity in 2011 by a factor of two," conclude the team.

    Read more of this story at Slashdot.

  • Google's Loon Brings Internet-By-Balloon To Kenya
    2018-07-19T20:14:00+00:00
    A network of giant balloons will soon bring internet access to remote regions of rural Kenya. From a report: Google's sister-company Loon has announced its first commercial deal: partnering with Telkom Kenya to deliver connectivity to the region. The firm's antennae-dangling fleet will ride the wind high above parts of the African country. But experts have warned that the partnership could lead to a communications monopoly.

    Read more of this story at Slashdot.

  • Killer Robots Would Be 'Dangerously Destabilizing' Force in the World, Tech Leaders Warn
    2018-07-19T19:34:00+00:00
    Thousands of artificial intelligence experts are calling on governments to take preemptive action before it's too late. The list is extensive and includes some of the most influential names in the overlapping worlds of technology, science and academia. From a report: Among them are billionaire inventor and OpenAI founder Elon Musk, Skype co-founder Jaan Tallinn, artificial intelligence researcher Stuart Russell, as well as the three founders of Google DeepMind -- the company's premier machine learning research group. In total, more than 160 organizations and 2,460 individuals from 90 countries promised this week to not participate in or support the development and use of lethal autonomous weapons. The pledge says artificial intelligence is expected to play an increasing role in military systems and calls upon governments and politicians to introduce laws regulating such weapons "to create a future with strong international norms." "Thousands of AI researchers agree that by removing the risk, attributability, and difficulty of taking human lives, lethal autonomous weapons could become powerful instruments of violence and oppression, especially when linked to surveillance and data systems," the pledge says. "Moreover, lethal autonomous weapons have characteristics quite different from nuclear, chemical and biological weapons, and the unilateral actions of a single group could too easily spark an arms race that the international community lacks the technical tools and global governance systems to manage," the pledge adds.

    Read more of this story at Slashdot.

  • Microsoft Reveals First Known Midterm Campaign Hacking Attempts
    2018-07-19T18:49:00+00:00
    An anonymous reader shares a report: Microsoft detected and helped block hacking attempts against three congressional candidates this year, a company executive said Thursday, marking the first known example of cyber interference in the midterm elections. "Earlier this year, we did discover that a fake Microsoft domain had been established as the landing page for phishing attacks," said Tom Burt, Microsoft's vice president for security and trust, at the Aspen Security Forum. "And we saw metadata that suggested those phishing attacks were being directed at three candidates who are all standing for election in the midterm elections." Burt declined to name the targets but said they were "people who, because of their positions, might have been interesting targets from an espionage standpoint as well as an election disruption standpoint." Microsoft took down the fake domain and worked with the federal government to block the phishing messages.

    Read more of this story at Slashdot.

  • Tech Chief Role Grows More Strategic, Survey Finds
    2018-07-19T18:04:00+00:00
    The rise of digital capabilities continues to elevate the role of IT leaders across the enterprise, moving them beyond back-office tech hubs and increasingly closer to products, services and customers, Korn/Ferry International reports. WSJ: In a recent survey, 83% of 199 technology chiefs said their role was more strategic than it was three years ago. Another 67% said they were on their company's executive committee, up from 55% in a similar survey last year, the executive-search firm said. As they shift from back-office technicians, 81% said they are now playing a greater role with customers, products and services than they were three years ago. The survey included responses from chief information officers, as well as chief technology and chief digital officers, at large businesses in a range of industries. "Based on the need to drive results, many companies are leveraging and deploying results-oriented technology leaders to drive the intersection of technology, product and digital efforts," Craig Stephenson, Korn Ferry managing director, North America Technology Officers Practice, told CIO Journal. He said the impact and scope of CIOs, CTOs and CDOs on the business side of operations is evolving rapidly and expected to expand even more in the years ahead. Further reading: Nicholas Carr was right --IT died, but was resurrected

    Read more of this story at Slashdot.

  • Hackers Breach Russian Bank and Steal $1 Million Due To Outdated Router
    2018-07-19T17:25:00+00:00
    Catalin Cimpanu, reporting for BleepingComputer: A notorious hacker group known as MoneyTaker has stolen roughly $1 million from a Russian bank after breaching its network via an outdated router. The victim of the hack is PIR Bank, which lost at least $920,000 in money it had stored in a corresponding account at the Bank of Russia. Group-IB, a Russian cyber-security firm that was called in to investigate the incident, says that after studying infected workstations and servers at PIR Bank, they collected "irrefutable digital evidence implicating MoneyTaker in the theft." Group-IB are experts in MoneyTaker tactics because they unmasked the group's existence and operations last December when they published a report on their past attacks.

    Read more of this story at Slashdot.

  • GV, Formerly Known as Google Ventures, For Years Has Used an Algorithm That Effectively Permits or Prohibits Both New and Follow-on Investments
    2018-07-19T16:48:00+00:00
    Dan Primack, reporting for Axios: When most venture capitalists want approval to make a new investment, they go to their partners. When venture capitalists at GV do it, they go to something called "The Machine." Axios has learned that the firm, formerly known as Google Ventures, for years has used an algorithm that effectively permits or prohibits both new and follow-on investments. Staffers plug in all sorts of deal details into "The Machine" -- which is programmed with all sorts of market data, and returns traffic signal-like outputs. Green means go. Red means stop. Yellow means proceed with caution, but sources say it's usually the practical equivalent of red. It was initially designed and used as a due diligence assistant that could be overruled but, according to three sources, it has evolved into a de facto investment committee.

    Read more of this story at Slashdot.

  • Project 'Fuchsia': Google is Quietly Working on a Successor To Android
    2018-07-19T16:00:00+00:00
    A day after the European Commission fined Google over Android, more details about Fuchsia, a new operating system the company has been working on for several years has emerged. From the report: But members of the Fuchsia team have discussed a grander plan that is being reported here for the first time: Creating a single operating system capable of running all the company's in-house gadgets, like Pixel phones and smart speakers, as well as third-party devices that now rely on Android and another system called Chrome OS, according to people familiar with the conversations. According to one of the people, engineers have said they want to embed Fuchsia on connected home devices, such as voice-controlled speakers, within three years, then move on to larger machines such as laptops. Ultimately the team aspires to swap in their system for Android, the software that powers more than three quarters of the world's smartphones, said the people, who asked not to be identified discussing internal matters. The aim is for this to happen in the next half decade, one person said. But Pichai and Hiroshi Lockheimer, his deputy who runs Android and Chrome, have yet to sign off on any road map for Fuchsia, these people said. The executives have to move gingerly on any plan to overhaul Android because the software supports dozens of hardware partners, thousands of developers -- and billions of mobile-ad dollars. [...] Still, Fuchsia is more than a basement skunkworks effort. Pichai has voiced his support for the project internally, said people familiar with the effort. Fuchsia now has more than 100 people working on it, including venerated software staff such as Matias Duarte, a design executive who led several pioneering projects at Google and elsewhere. Duarte is only working part-time on the project, said one person familiar with the company.

    Read more of this story at Slashdot.

  • Amazon Web Services Isn't Making a 'Commercial' Networking Switch, Cisco Says
    2018-07-19T15:20:00+00:00
    A week after a report claimed that Amazon Web Services was building its own bare-bones networking switch in a potential threat to networking giant companies, Cisco says it has checked with Amazon, with which it has long maintained a relationship, and it has been assured by the ecommerce giant that is not entering its territory. From a report: AWS CEO Andy Jassy and Cisco CEO Chuck Robbins had a "recent call" from which Robbins walked away satisfied that AWS wasn't "actively building a commercial network switch," Marketwatch reported Wednesday, citing a statement from Cisco that it confirmed as authentic with AWS. That follows a report last week from The Information that AWS was working on a so-called "white-box switch," which the site portrayed as a frontal assault on Cisco that sent networking stocks slumping on a lazy summer Friday afternoon.

    Read more of this story at Slashdot.

  • Trump Slams EU Over $5 Billion Fine on Google
    2018-07-19T14:40:00+00:00
    U.S. President Donald Trump on Thursday criticized the European Union and said the bloc was taking advantage of the United States, pointing to the record $5 billion fine European antitrust regulators imposed on Google. From a report: European Commission President Jean-Claude Juncker is scheduled to meet with Trump at the White House next Wednesday to discuss trade and other issues. "I told you so! The European Union just slapped a Five Billion Dollar fine on one of our great companies, Google. They truly have taken advantage of the U.S., but not for long!" Trump said in a post on Twitter .

    Read more of this story at Slashdot.

  • Bye Siri, Says Apple AI's Last Remaining Founder
    2018-07-19T14:00:00+00:00
    Tom Gruber, the last of three Siri voice assistant co-founders still at Apple, has retired from his role as head of Siri's Advanced Development group, The Information reports. From a report: The 59-year-old will pursue personal interests in photography and ocean conservation, the publication said citing unnamed sources. Gruber's departure comes as the Siri group is seeing a major haul in its leadership under new boss John Giannandrea, formerly Google's head of AI and search. Dag Kittlaus and Adam Cheyer, with whom Gruber founded the original Siri Inc before it was bought over by Apple in 2010, left the iPhone maker years ago in 2011 and 2012 respectively.

    Read more of this story at Slashdot.

  • Should the Word 'Milk' Be Used To Describe Nondairy Milk-Alternative Products?
    2018-07-19T13:00:00+00:00
    An anonymous reader quotes a report from Ars Technica: The U.S. Food and Drug Administration seems to have soured on nondairy milk-alternative products that use the term "milk" in their marketing and labeling -- like popular soy and almond milk products. In a talk hosted by Politico, FDA Commissioner Scott Gottlieb announced Tuesday that the FDA will soon issue a new guidance on the use of the term. But he added that products aren't abiding by FDA policies as they stand now. He referenced a so-called "standard of identity" policy that regulates how milk is defined and should be identified. "If you look at our standard of identity -- there is a reference somewhere in the standard of identity to a lactating animal," he said. "And, you know, an almond doesn't lactate, I will confess." He went on to explain that the issue is that the agency hasn't been enforcing its own policy or putting the squeeze on product makers -- and that it's time to get abreast of the labeling language. But, he admitted, curtailing the wording of non-moo juice labeling isn't an easy task because it means that the agency has to change its "regulatory posture." "I can't just do it unilaterally," Gottlieb said. Hence, the agency is putting together a new guidance for manufacturers to help skim the fat from the market. Gottlieb said the agency will soon tap the public for comments on the terminology and hopes to wring out a new policy within a year.

    Read more of this story at Slashdot.

 

dept@math.duke.edu
ph: 919.660.2800
fax: 919.660.2821

Mathematics Department
Duke University, Box 90320
Durham, NC 27708-0320