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Upstream

Definition of Upstream

Upstream: Upstream and Downstream are terms used in data science to describe the flow of data or what order events occur. Data is processed and becomes more refined as it moves through the various processes. Upstream is closer to the source. When discussing a specific process step, Downstream is a term that is used to signify something that will occur in a later step, and Upstream is used to signify something that occurred before the specific process step being discussed. For example: Sales Leads may be analyzed and updated so that they can be correctly assigned to a sales rep in a separate downstream process. Before the Sales Lead data was entered into the system it was scrubbed for duplicates in a separate upstream process.

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Expectation Maximization

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Definition of Expectation Maximization Expectation Maximization: Expectation Maximization (EM): A statistical algorithm used to find the maximum likelihood estimate of a parameter in a probabilistic model. EM iteratively maximizes the expected likelihood of the data under the model, by adjusting the model’s parameters. What is Expectation Maximization used for? Expectation Maximization (EM) is a statistical…

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Data Integration

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Definition of Data Integration Data Integration: Data integration is the process of combining data from multiple sources into a single coherent dataset. This can be done manually, but more often it is done with software that can combine the data automatically. The goal of data integration is to make it easier to analyze the data…

AdaBoost
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AdaBoost

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AdaBoost is a machine learning algorithm that is used to improve the accuracy of predictions made by a model. It does this by iteratively training a model on a subset of the data, and then using the model to predict the outcomes for the remaining data.

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Epoch

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Definition of Epoch Epoch: Epoch is a term used in data science to denote a specific point in time. It may be used, for example, to indicate the beginning of a period when data is collected or the end of a period when data is analyzed. When is an Epoch used? An epoch is a…

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Vowel Removal

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Definition of Vowel Removal Vowel Removal: Vowel removal is a data preprocessing technique used to remove vowels from text. This can be helpful for improving the accuracy of text-based machine learning models, as well as reducing the size of the training dataset.

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