Optimizely has announced the general availability version of Stats Engine as part of its optimization platform. The Stats Engine was developed in collaboration with statisticians at Stanford University and was created with current approaches in the field of statistical analysis and the company’s own algorithms to allow customers to interpret and act on data.
Through A/B and multivariate testing, in addition to other tools, Optimizely delivers real-time data and statistics. The company says that most important advance offered through the Stats Engine is the ability to extract valid, actionable data at any point in time rather than having to wait for an experiment to reach a pre-determined sample size reducing mid-course statistical flukes that can seem like relevant results.
The statistical framework of Optimizely’s Stats Engine combines sequential hypothesis testing and multiple testing corrections, and applies them to real-time data sets. In doing so, Optimizely says that it has reduced the built-in limitations of traditional statistics that can result in experiment error rates of more than 30 percent.
Stats Engine Highlights:
- Sequential hypothesis testing: With classical statistics, teams are advised to look at the results of a running experiment just once – and only then after they’ve reached a pre-set sample size – due to the risk of mistaking statistical oddities for statistical relevance. Stats Engine assumes that a test has an infinite rather than a fixed sample size. It generates an accurate level of confidence after every visitor, so marketing or product management teams can check results frequently and make decisions as soon as results are statistically significant which means that no additional analysis is necessary.
- False discovery rate control: Having multiple variations and goals in an experiment increases the likelihood of error, based on random chance alone and the challenge of multiple comparisons. Stats Engine accounts for this by adjusting its calculations based on the total number of variations and goals in an experiment. This results in a highly accurate confidence calculation, regardless of the number of goals and variations tested at once.
Optimizely has created a Stats Engine landing page to provide more information about using the platform.Read more: http://blog.optimizely.com/2015/01/20/statistics-f...
Are you paying more taxes than you have to as a developer or freelancer? The IRS is certainly not going to tell you about a deduction you failed to take, and your accountant is not likely to take the time to ask you about every deduction you’re entitled to. As former IRS Commissioner Mark Everson admitted, “If you don’t claim it, you don’t get it.
Get hands-on experience in performing simple to complex mobile forensics techniques Retrieve and analyze data stored not only on mobile devices but also through the cloud and other connected mediums A practical guide to leveraging the power of mobile forensics on popular mobile platforms with lots of tips, tricks, and caveats.
The Chirp GPS app is a top-ranked location sharing app available for Apple and Android that is super easy to use, and most of all, it's reliable.
Write and run code every step of the way, using Android Studio to create apps that integrate with other apps, download and display pictures from the web, play sounds, and more. Each chapter and app has been designed and tested to provide the knowledge and experience you need to get started in Android development.