On the other hand, allowing for each character to be important is a more powerful method, but it can require a lot of samples and a lot of CPU time to get non-noisy results. Simple bag-of-words assumptions allow for fast sample generation, and just a few hundreds of samples could be required to get an OK quality if the assumption is correct. But such generation methods / models will fail to explain r eli5 a more complex classifier properly . Depending on assumptions we should choose both dataset generation method and a white-box classifier. The problem is that it is much more resource intensive – you need a lot more samples to get non-noisy results. Here explaining a single example took more time than training the original pipeline. Another possible issue is the dataset generation method.

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CR is the number of people who take an action, divided by the number of people who could have. For example, if you have 100 visits to your landing page and 25 people click the button, the button has a 25 percent conversion rate. In online advertising, cost-per-click refers to the price paid by an advertiser who is charged every time someone clicks on an ad . The cost-per-click is the dollar amount that the advertiser pays for each click. Often, this person is helpful in engaging with the community on social media, forums, and meetups. The social media manager job description has a lot of crossover with a community manager. Companies that focus on selling goods and services to other companies.

This could involve interactions with your product, your website, your customer support, or your social media. Like conversion rate, this measures the amount of people who took an action—in the case of CTR, the action is a click—divided by the number of people r eli5 who could have. In email marketing, for instance, CTR describes the rate at which people clicked on a link in an email, taking into consideration the number of people who received the email. The word or phrase that’s used to tell people what to do.

Note that you should adjust the number of cores to whatever your machine has. Also, for final results, one may wish to increase the number of replications to help ensure stable results. Zero-inflated poisson regression is used to model count data that has an excess of zero counts. r eli5 Further, theory suggests that the excess zeros are generated by a separate process from the count values and that the excess zeros can be modeled independently. Thus, the zip model has two parts, a poisson count model and the logit model for predicting excess zeros.

## Social Media Stream

In that case, the fitted values equal the data values and, consequently, all of the observations fall exactly on the regression line. Statisticians say that a regression model fits the data well if the differences between the observations and the predicted values are small and unbiased. Unbiased in this context means r eli5 that the fitted values are not systematically too high or too low anywhere in the observation space. Count data often use exposure variables to indicate the number of times the event could have happened. You can incorporate a logged version of the exposure variable into your model by using the offset()option.

Used in advertising and marketing environments, an insertion order is a written contract between an advertiser and an ad agency or media rep, often used for print or broadcast ads. Typical IOs include r eli5 air date and time, number of times for the ad to be shown, and costs. Popular instant messaging apps like AOL Instant Messenger predate the more modern social networks like Facebook and Twitter.

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## You Probably Shouldn’t Bet Your Savings On Reddit’s ‘wallstreetbets’

” you mentioned that “R2 is relevant in this context because it is a measure of the error. I understand S’s value, specially in regards to the precision interval, but I also like MAPE because it offers a “dimension” of the error, meaning its proportion vs the observed value. At first glance, R-squared seems like an easy to understand statistic that indicates how well a regression model fits a data set. To get the full picture, you must consider R2 values in combination with residual plots, other statistics, and in-depth knowledge of the subject area. The R-squared for the regression model on the left is 15%, and for the model on the right it is 85%. When a regression model accounts for more of the variance, the data points are closer to the regression line. In practice, you’ll never see a regression model with an R2 of 100%.

An enterprise analytics tool, for instance, would be a B2B product. Often times you may see marketing strategies and statistics broken up between B2B and B2C because some of the tactics and tips may differ based on this distinction. Have you ever wondered how your favorite app connects to so another of your much-loved services?

So it is likely (though not guaranteed, we’ll discuss it later) that the explanation is correct and can be trusted. can also help when it is hard to get exact mapping between model coefficients and text features, e.g. if there is dimension reduction involved. ELI5 is a Python library which allows to visualize and debug various Machine Learning models using unified API. It has built-in support for several ML frameworks and provides a way to explain black-box models.

## Demystifying Model Interpretation Using Eli5

You may want to review these Data Analysis Example pages,Poisson Regression and Logit Regression. R-squared measures the amount of variance around the fitted values. If you have a simple regression model with one independent variable and create a fitted line plot, it measures the amount of variance around the fitted line. The lower the variance around the fitted values, the higher the R-squared. Another way to think about it is that it measures the strength of the relationship between the set of independent variables and the dependent variable.

- The researcher needs to define that acceptable margin of error using their subject area knowledge.
- It then takes the observed value for the dependent variable for that observation and subtracts the fitted value from it to obtain the residual.
- On the other hand, I see S used more often to determine whether the prediction precision is sufficient for applied uses of the model.
- In other words, cases where you’re using the model to make predictions to make decisions and you require the predictions to have a certain precision.
- S and MAPE are great for determining whether the predictions fall close enough to the correct values for the predictions to be useful.
- It repeats this process for all observations in your dataset and plots the residuals.

You might see this acronym appear on tweets or Facebook posts, asking those who read it to give the post a like. It’s also an acronym for “Learning Management System,” software for online education courses. KPIs are the benchmarks and goals that are most important for r eli5 your business. They help you determine how well your campaigns and strategies are performing. Social media KPIs could be the amount of engagement or shares you’re receiving on your profiles. You could also track clicks and conversions back to your website via social.