Click here to close now.




















Welcome!

Microservices Expo Authors: Pat Romanski, VictorOps Blog, Liz McMillan, Elizabeth White, Ruxit Blog

Blog Feed Post

Social Network Analysis at New Frontiers in Computing 2013

by Joseph Rickert This past Saturday, the New Frontiers in Computing Conference (NFIC 2013), held at Stanford University, explored the theme: Social Network Analysis: It’s Who You Know. The speakers were a well-chosen, eclectic lot who covered a remarkable array of issues in less than a full day. Ian Hersey, former CTO of Attensity spoke on Lessons from Large-Scale Social Analytics. Michael Wu, Chief scientist of Lithium Technologies, provided an introduction to social network analysis and very gamely conducted a live experiment building a social network of attendee tweets during the conference. Rong Yan, the Engineering Manager for Ads Relevance and Quality at Facebook spoke about machine learning insights. Zahan Malkani, an engineer at Facebook, presented “Dog”, the yet to be released social media programming language. Shivakumar Vaithyanathan, Chief Scientist for Text Analytics at the IBM Almaden Research Center that is built around IBM’s Annotation Query Language (AQL). Laura Jacob, a Factset engineer and president of the IEEE’s Society on the Social Implications of Technology spoke about “Context Collapse”, a fundamental cause for the damaging “oversharing” trap that so many Facebook and Twitter users fall into. Finally, John Rehling, Senior Research Scientist at Reputation.com, “cleaned up” with an alarming discussion of the mind boggling hazards we all face in just using the Internet. Although most of the talks were obviously enhanced versions of corporate presentations, there was nothing superficial about the day. Collectively, the presentations and panel discussions provided a comprehensive, multidimensional look at the technologies, issues and challenges associate with social networks. Most refreshingly, the day was mostly hype free — no beating the drum for big data or promoting unreasonable expectations for Hadoop.  The presenters all seemed to pretty much be in agreement about the current best practices in technology. Hadoop, for example, was characterized as being the place for massive amounts of persistent data, but not a suitable platform for ingesting social media data where low latency is of paramount importance. And, Rong Yan pointed out that although Facebook is a big Hadoop shop they do not use Map-Reduce for analyses that require status sharing among processors distributed across the cluster. R came up at various times during the discussions in a matter of fact way. Rong pointed out for example, that for data stored in Hadoop clusters Pig or Hive will typically be used to aggregate data at which point it is no longer big data. After that R, Matlab or SQL might be used for analysis. He indicated that most business questions can be answered with relatively small data sets. When it really is necessary to work with a large data set then the analysis is likely to be done in C++. At one point Shivakumar casually remarked that AQL syntax looks a lot like R. A technical highlight of the day was Michael Wu’s introduction to social network analysis (SNA). With the help of an open source plug-in to Excel he was able to start from first principles and work up to explaining some fairly sophisticated performance metrics for social network graphs such as eigenvector centrality. Basically, this is the notion of giving high scores to nodes that are connected to nodes that are themselves central within the network. (For a very nice explanation of this idea and pointers to the source papers have a look at the Plos paper by Gabrielle Lohmann et al.) Michael gave a remarkably clear presentation and although he did not use R he could have. For anyone with an interest in getting started with SNA I recommend the 2010 Social Network Analysis Labs in R written by McFarland, Messing and Nowak. The labs use functions from the igraph package and data from the NetData package to provide a challenging introductory SNA course. The first plot (from the 4th lab) shows a network graph of student interactions using the studentnets.S641 data set. This next plot shows the Eigenvector centrality score for each student. The most fascinating and distressing presentations and discussions happened in the section on Privacy Implications for SNA. Laura Jacob started things off here by providing some social theory background for the problem of inadvertently oversharing on social media sites. Frequently this sort of thing happens when the imagined audience for a tweet, message or photo turns out not to be the actual audience. This “context collapse” results from the tension between the individual’s attempt to establish some level of privacy and the social media site’s desire obtain information. Laura explained that social media sites know that if they put you a certain context you are more likely to share information that is appropriate for that context. However, unless you are really careful about the privacy settings the actual context might include a wider audience than intended. At some level, participating in social media is like continually reliving that part of your wedding day where you worked very hard to limit the conversation between your new in-laws at Table 1 and your Vegas party friends seated in Table 12. For more on the theory take a look at Laura’s suggested reading list of (Goffman 1959) and (Marwick 2010) In the final presentation of the day, John Rehling took the attendees through the “Spectrum of Social Distance”: self < younger self < family < friend < acquaintance < enemy; recounted a number of cases where reputations were tarnished and irrevocable damage done by people closer than family and then pointed out that in the future we can expect to live in a world where individually innocuous bits of information will be assembled to form damaging information. This very brief summary of the conference does not do justice to any of the presenters, but will end here with Ian Hersey’s list of ongoing challenges for SNA: The growth in the volume of data (10% increase per month) Data Quality Assurance Rich natural language processing in many languages across many domains The sparseness of geocoded data Veracity (There is lots of gaming going on in social media) Irony / sarcasm detection Finally, I'm betting that not long after Dog we will have “RDog”.

Read the original blog entry...

More Stories By David Smith

David Smith is Vice President of Marketing and Community at Revolution Analytics. He has a long history with the R and statistics communities. After graduating with a degree in Statistics from the University of Adelaide, South Australia, he spent four years researching statistical methodology at Lancaster University in the United Kingdom, where he also developed a number of packages for the S-PLUS statistical modeling environment. He continued his association with S-PLUS at Insightful (now TIBCO Spotfire) overseeing the product management of S-PLUS and other statistical and data mining products.<

David smith is the co-author (with Bill Venables) of the popular tutorial manual, An Introduction to R, and one of the originating developers of the ESS: Emacs Speaks Statistics project. Today, he leads marketing for REvolution R, supports R communities worldwide, and is responsible for the Revolutions blog. Prior to joining Revolution Analytics, he served as vice president of product management at Zynchros, Inc. Follow him on twitter at @RevoDavid

@MicroservicesExpo Stories
Skeuomorphism usually means retaining existing design cues in something new that doesn’t actually need them. However, the concept of skeuomorphism can be thought of as relating more broadly to applying existing patterns to new technologies that, in fact, cry out for new approaches. In his session at DevOps Summit, Gordon Haff, Senior Cloud Strategy Marketing and Evangelism Manager at Red Hat, discussed why containers should be paired with new architectural practices such as microservices rathe...
Early in my DevOps Journey, I was introduced to a book of great significance circulating within the Web Operations industry titled The Phoenix Project. (You can read our review of Gene’s book, if interested.) Written as a novel and loosely based on many of the same principles explored in The Goal, this book has been read and referenced by many who have adopted DevOps into their continuous improvement and software delivery processes around the world. As I began planning my travel schedule last...
It’s been proven time and time again that in tech, diversity drives greater innovation, better team productivity and greater profits and market share. So what can we do in our DevOps teams to embrace diversity and help transform the culture of development and operations into a true “DevOps” team? In her session at DevOps Summit, Stefana Muller, Director, Product Management – Continuous Delivery at CA Technologies, answered that question citing examples, showing how to create opportunities for ...
Any Ops team trying to support a company in today’s cloud-connected world knows that a new way of thinking is required – one just as dramatic than the shift from Ops to DevOps. The diversity of modern operations requires teams to focus their impact on breadth vs. depth. In his session at DevOps Summit, Adam Serediuk, Director of Operations at xMatters, Inc., will discuss the strategic requirements of evolving from Ops to DevOps, and why modern Operations has begun leveraging the “NoOps” approa...
In today's digital world, change is the one constant. Disruptive innovations like cloud, mobility, social media, and the Internet of Things have reshaped the market and set new standards in customer expectations. To remain competitive, businesses must tap the potential of emerging technologies and markets through the rapid release of new products and services. However, the rigid and siloed structures of traditional IT platforms and processes are slowing them down – resulting in lengthy delivery ...
The Microservices architectural pattern promises increased DevOps agility and can help enable continuous delivery of software. This session is for developers who are transforming existing applications to cloud-native applications, or creating new microservices style applications. In his session at DevOps Summit, Jim Bugwadia, CEO of Nirmata, will introduce best practices, patterns, challenges, and solutions for the development and operations of microservices style applications. He will discuss ...
In his session at 17th Cloud Expo, Ernest Mueller, Product Manager at Idera, will explain the best practices and lessons learned for tracking and optimizing costs while delivering a cloud-hosted service. He will describe a DevOps approach where the applications and systems work together to track usage, model costs in a granular fashion, and make smart decisions at runtime to minimize costs. The trickier parts covered include triggering off the right metrics; balancing resilience and redundancy ...
Docker containerization is increasingly being used in production environments. How can these environments best be monitored? Monitoring Docker containers as if they are lightweight virtual machines (i.e., monitoring the host from within the container), with all the common metrics that can be captured from an operating system, is an insufficient approach. Docker containers can’t be treated as lightweight virtual machines; they must be treated as what they are: isolated processes running on hosts....
Before becoming a developer, I was in the high school band. I played several brass instruments - including French horn and cornet - as well as keyboards in the jazz stage band. A musician and a nerd, what can I say? I even dabbled in writing music for the band. Okay, mostly I wrote arrangements of pop music, so the band could keep the crowd entertained during Friday night football games. What struck me then was that, to write parts for all the instruments - brass, woodwind, percussion, even k...
Whether you like it or not, DevOps is on track for a remarkable alliance with security. The SEC didn’t approve the merger. And your boss hasn’t heard anything about it. Yet, this unruly triumvirate will soon dominate and deliver DevSecOps faster, cheaper, better, and on an unprecedented scale. In his session at DevOps Summit, Frank Bunger, VP of Customer Success at ScriptRock, will discuss how this cathartic moment will propel the DevOps movement from such stuff as dreams are made on to a prac...
SYS-CON Events announced today that G2G3 will exhibit at SYS-CON's @DevOpsSummit Silicon Valley, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Based on a collective appreciation for user experience, design, and technology, G2G3 is uniquely qualified and motivated to redefine how organizations and people engage in an increasingly digital world.
SYS-CON Events announced today that DataClear Inc. will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. The DataClear ‘BlackBox’ is the only solution that moves your PC, browsing and data out of the United States and away from prying (and spying) eyes. Its solution automatically builds you a clean, on-demand, virus free, new virtual cloud based PC outside of the United States, and wipes it clean...
What does “big enough” mean? It’s sometimes useful to argue by reductio ad absurdum. Hello, world doesn’t need to be broken down into smaller services. At the other extreme, building a monolithic enterprise resource planning (ERP) system is just asking for trouble: it’s too big, and it needs to be decomposed.
Several years ago, I was a developer in a travel reservation aggregator. Our mission was to pull flight and hotel data from a bunch of cryptic reservation platforms, and provide it to other companies via an API library - for a fee. That was before companies like Expedia standardized such things. We started with simple methods like getFlightLeg() or addPassengerName(), each performing a small, well-understood function. But our customers wanted bigger, more encompassing services that would "do ...
The pricing of tools or licenses for log aggregation can have a significant effect on organizational culture and the collaboration between Dev and Ops teams. Modern tools for log aggregation (of which Logentries is one example) can be hugely enabling for DevOps approaches to building and operating business-critical software systems. However, the pricing of an aggregated logging solution can affect the adoption of modern logging techniques, as well as organizational capabilities and cross-team ...
Culture is the most important ingredient of DevOps. The challenge for most organizations is defining and communicating a vision of beneficial DevOps culture for their organizations, and then facilitating the changes needed to achieve that. Often this comes down to an ability to provide true leadership. As a CIO, are your direct reports IT managers or are they IT leaders? The hard truth is that many IT managers have risen through the ranks based on their technical skills, not their leadership ab...
DevOps has traditionally played important roles in development and IT operations, but the practice is quickly becoming core to other business functions such as customer success, business intelligence, and marketing analytics. Modern marketers today are driven by data and rely on many different analytics tools. They need DevOps engineers in general and server log data specifically to do their jobs well. Here’s why: Server log files contain the only data that is completely full and accurate in th...
Brands are more than the sum of their brand elements – logos, colors, shapes, and the like. Brands are promises. Promises from a company to its customers that its products will deliver the value and experience customers expect. Today, digital is transforming enterprises across numerous industries. As companies become software-driven organizations, their brands transform into digital brands. But if brands are promises, then what do digital brands promise – and how do those promises differ from ...
SYS-CON Events announced today that Pythian, a global IT services company specializing in helping companies leverage disruptive technologies to optimize revenue-generating systems, has been named “Bronze Sponsor” of SYS-CON's 17th Cloud Expo, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Founded in 1997, Pythian is a global IT services company that helps companies compete by adopting disruptive technologies such as cloud, Big Data, advance...
We chat again with Jason Bloomberg, a leading industry analyst and expert on achieving digital transformation by architecting business agility in the enterprise. He writes for Forbes, Wired, TechBeacon, and his biweekly newsletter, the Cortex. As president of Intellyx, he advises business executives on their digital transformation initiatives and delivers training on Agile Architecture. His latest book is The Agile Architecture Revolution. Check out his first interview on Agile trends here.