The most influential data scientists on Twitter Twitter is emerging as an important medium for determining influence in many fields. Social ranking sites like Klout and Traackr include Twitter as a heavily-weighted component of their ranking algorithms, for example. Twitter isn't representative of the members of any field, but in areas where the members primarily engage online, it can be a useful proxy. SocialFlow's Gilad Lotan has used an analysis of social networks on Twitter to rank influences in such fields, including the communities of python users and data scientists. Each circle represents a data scientists on Twitter (anyone with Data Science, Data Scientist, Machine Learning, Data Strategy or the like in their bio). The colors represent connected clusters within the social graph, detected autonomously. Purple seems to be a mix of east coast and academics, while the dark blue is the west coast data drinking crew. The analysis of the social network code was performed with Python, and the visualization was created with Gephi.
Timeline JS - Beautifully crafted timelines that are easy, and intuitive to use. blog - looking with cassandra into the future of atlas? It’s no surprise we use MongoDB almost everywhere. And it’s no surprise either that we’re planning for world domination, ingesting more and more data from different media sources into our Atlas platform: which is leading us to hit MongoDB scalability limits, discover obscure bugs, and question some of its design choices. That’s why for the upcoming Atlas 4.0 version we’re going to switch gears and move towards one of the most dominant players in the non-relational databases space: Cassandra. is it because you’re all crazy hipsters? The reason we’re moving from MongoDB to Cassandra is not because we love the latest and coolest technology, whatever that means. Rather, given the large growth we’re experiencing on the Atlas platform in terms of data and users: So, we chose to go with Cassandra for a number of reasons: But we didn’t stop at mere theoretical considerations: once settled on Cassandra, it was time to do some prototyping and testing. Tests passed with flying colours. the end?
Free Online Data Training | kdmcBerkeley Data visualization basic training; from spreadsheet to data mapping. kdmcBerkeley is offering four free online training courses in data journalism. You'll learn basic data visualization skills, from spreadsheets to data mapping. Each of the four one-hour long courses builds upon the other; register for all four sessions or choose the session that best meets your needs. Each course is offered twice, once at 10am PST and then again at 1pm PST. Spreadsheet Basics (Completed) February 20, Wednesday at 10:00am-11:00am or 1:00pm-2:00pm Get started in data journalism with the basics of spreadsheets. Key Takeaways: Knowledge of and working with the main components of a spreadsheet: cells, rows, columns How to enter data into a spreadsheetUse of formulas to perform simple mathematical calculations Working with functions in large datasets Introduction to Data Visualization February 27, Wednesday at 10:00am-11:00am or 1:00pm-2:00pm Examine visualization techniques for illustrating data.
Where to Learn Deep Learning – Courses, Tutorials, Software Deep Learning is a very hot Machine Learning techniques which has been achieving remarkable results recently. We give a list of free resources for learning and using Deep Learning. By Gregory Piatetsky, @kdnuggets, May 26, 2014. Deep Learning is a very hot area of Machine Learning Research, with many remarkable recent successes, such as 97.5% accuracy on face recognition, nearly perfect German traffic sign recognition, or even Dogs vs Cats image recognition with 98.9% accuracy. The term "deep learning" refers to the method of training multi-layered neural networks, and became popular after papers by Geoffrey Hinton and his co-workers which showed a fast way to train such networks. Yann LeCun, a student of Geoff Hinton, also developed a very effective algorithm for deep learning, called ConvNet, which was successfully used in late 80-s and early 90-s for automatic reading of amounts on bank checks. Here are some useful and free (!)
What a Big-Data Business Model Looks Like - R “Ray” Wang by R “Ray” Wang | 10:00 AM December 6, 2012 The rise of big data is an exciting — if in some cases scary — development for business. Together with the complementary technology forces of social, mobile, the cloud, and unified communications, big data brings countless new opportunities for learning about customers and their wants and needs. It also brings the potential for disruption, and realignment. Organizations that truly embrace big data can create new opportunities for strategic differentiation in this era of engagement. Those that don’t fully engage, or that misunderstand the opportunities, can lose out. There are a number of new business models emerging in the big data world. Differentiation creates new experiences. Big data offers opportunities for many more service offerings that will improve customer satisfaction and provide contextual relevance. Brokering augments the value of information. Delivery networks enable the monetization of data.
Free Keynote Mockup Templates for iPhone, iPad, Android, ... Click the orange button to pop-up a window where you can edit and confirm the tweet, then the download button will be activated Keynotopia Mockup Templates enable you to sketch user interfaces using Apple Keynote or Microsoft PowerPoint, without having to draw each component by hand! All components are hand-drawn vector shapes created from scratch in Keynote and PowerPoint, and can be edited and customized directly, without needing additional design tools. When your mockups look like simple hand-drawn screens, it’s easier to get feedback on layout and structure, without getting distracted by the detail. And creating Keynote and PowerPoint sketches is better than drawing them by hand, because you can iterate and modify them quickly without having to redraw them from scratch. Watch this 2 minute video to learn how to turn mockups into high fidelity prototypes with a few clicks How to use the mockup templates What’s included Web 2.0 and jQuery Apps Mockup Templates Facebook Mockup Templates
Why the days are numbered for Hadoop as we know it — Cloud Computing News