detection Archives

Jan 30

Salesforce Anomaly Detection Using Anomaly.io

detect anomalies in salesforce

Monitoring Key Performance Indicators (KPIs) is essential to running a successful business. As one example, you should examine your lead generation KPI several times a day, to allow you to detect and correct problems as quickly as possible.

But you’re busy—you don’t have time to watch KPI indicators all day long. That’s where Anomaly.io comes in. By combining our detection algorithms with your Salesforce data, you can automatically detect problems and notify the appropriate personnel to ensure that speedy corrective action is taken.

Jan 25

Detecting Anomalies in Correlated Time Series

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anomaly in time series correlation

Monitoring key performance indicators (KPIs), sales or any other product data means working within an ecosystem where very often you will see metrics correlating with each other. When a normal correlation between two metrics is broken, we have reason to suspect something strange is happening.

As an example, take a look at anomaly.io analytics during its early days (a long time ago). In the graphic above, the new users are shown in green and the returning users in red. Clearly, something strange happens in the middle of November. Let’s use some techniques to find out more!
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Mar 10

Detecting Correlation Among Multiple Time Series

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detect-correlation

To determine the level of correlation between various metrics we often use the normalized cross-correlation formula.2
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Feb 08

Change Point Detection with Seasonal Time Series

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change-point-seasonality

Previously, we looked at using Twitter Breakout (EDM) to detect Anomalies. As with the popular E-Divisive, EDM detects mean shift and changes in distribution. Both algorithms work with seasonal time series, but perform even better without seasonality. Read More

Jan 20

Anomaly Detection with Twitter Breakout

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AnomalyDetectionBreakout

We previously tested Twitter Anomaly Detection package using the R language. Now let’s take a look at Twitter Breakout Detection.

Jan 12

Detecting Anomalies with Moving Median Decomposition

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anomaly-decomposition-median

Time series decomposition splits a time series into seasonal, trend and random residual time series. The trend and the random time series can both be used to detect anomalies. But detecting anomalies in an already anomalous time series isn’t easy.
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Aug 06

Detecting Seasonality Using Fourier Transforms in R

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detect seasonality

Our brains are really fast at recognizing patterns and forms: we can often find the seasonality of a signal in under a second. It is also possible do this with mathematics using the Fourier transform.

First, we will explain what a Fourier transform is. Next, we will find the seasonality of a website from its Google Analytics pageview report using the R language.

Jul 28

Detecting Anomalies with Skyline

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install skyline anomaly detection

Skyline is free and open source anomaly detection software. Simply plug Graphite metrics into Skyline to detect anomalous behaviour automatically without any configuration. Read More

Jun 30

Anomaly Detection Using K-Means Clustering

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kmean anomaly

Monitored metrics very often exhibit regular patterns. When the values are correlated with the time of the day, it’s easier to spot anomalies, but it’s harder when they do not. In some cases, it is possible to use machine learning to differentiate the usual patterns from the unusual ones.

Jun 17

Delta Time (Δt) for Anomaly Detection

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delta time anomaly

It is common to monitor the number of events that occur in a period of time. Unfortunately, this technique isn’t fast, and can fail to detect some anomalies. The alternative is to change the problem to studying the period of time between events.

Category Archives: detection