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Conor MacGrath

3 Car Garage/Family Room Built-Ins

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АСУ Работы грузового узла Башнефть, Куйбышевская дорога, ТрансСистемоТехника

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The big data era is characterized by ever-increasing velocity and volume of data. Over the last two or three years, several talks at Velocity have explored how to analyze operations data at scale, focusing on anomaly detection, performance analysis, and capacity planning, to name a few topics. Knowledge sharing of the techniques for the aforementioned problems helps the community to build highly available, performant, and resilient systems. A key aspect of operations data is that data may be missing—referred to as “holes”—in the time series. This may happen for a wide variety of reasons, including (but not limited to): # Packets being dropped due to unresponsive downstream services # A network hiccup # Transient hardware or software failure # An issue with the data collection service “Holes” in the time series on data analysis can potentially skew the analysis of data. This in turn can materially impact decision making. Arun Kejariwal presents approaches for analyzing operations data in the presence of “holes” in the time series, highlighting how missing data impacts common data analysis such as anomaly detection and forecasting, discussing the implications of missing data on time series of different granularities, such as minutely and hourly, and exploring a gamut of techniques that can be used to address the missing data issue (e.g., approximate the data using interpolation, regression, ensemble methods, etc.). Arun then walks you through how the techniques can be leveraged using real data.

Data Data Everywhere: Not An Insight to Take Action Upon

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АСУ Работы грузового узла Башнефть, Куйбышевская дорога, ТрансСистемоТехника

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Data Data Everywhere: Not An Insight to Take Action Upon

3 Car Garage

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