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SmartData Collective > Big Data > Using Data Annotations for Quality Control Purposes
Big Data

Using Data Annotations for Quality Control Purposes

Inaccurately entered data can lead to serious quality control issues, but data annotations can help a lot.

Ryan Kh
Last updated: 2022/05/08 at 7:55 PM
Ryan Kh
6 Min Read
data annotation
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Data annotation helps the developers check each field after entering data into a database or creating a form. This is especially useful if no error checking has been implemented.

Contents
How can I validate user input against an array of values?What is the difference between a validator and a validator control?Why is Data Annotation Important?What is a Data Annotation Tool?Essential Features that a Data Annotation Tool Should HaveQuality Control of DataStaff ManagementSecurityManagement of DatasetsAnnotationConclusion

Data Annotation converts data from code to presentation format. Quality controls ensure the correct input of data into a table, record, or control. Performance affects speed since validation occurs before the submission of data.

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Some companies specializing in services for data annotation can help you increase your productivity and efficiency. 

What are the advantages and disadvantages of using these two methods?

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Advantages:

  1. Easy to implement
  2. Can be used with any language (VB.NET, C)
  3. No need to write custom logic

Disadvantages:

  1. Requires more coding than data annotation alone
  2. May not perform as well as data annotation alone
  3. Not all controls support it

How can I validate user input against an array of values?

You could use a ListBox, which allows users to select multiple items. Then you can loop through the selected items and compare them to your list of acceptable values. You can add a required attribute to the textbox that will cause the system to throw an exception when the value is blank.

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What is the difference between a validator and a validator control?

A validator is a component that performs validation on a single property. Validators are often placed directly on the properties. A RequiredFieldValidator might be applied to a TextBox by setting its ControlToValidate property to “TextBox1”. The validator would then contain a Boolean expression that checks the value entered in the TextBox.

A validator control provides a way to group related validators so that you don’t have to apply them individually to every element. In addition, it lets you reuse common validators across different elements.

For example, you can define a general-purpose validator that applies to most of your fields and then apply that same validator to individual controls such as TextBoxes and RadioButtons.

Why is Data Annotation Important?

Data Annotations allow you to specify rules about how data must be formatted. These annotations are applied to classes, properties, and methods to enforce business rules at compile time, making it easier to spot errors.

What is a Data Annotation Tool?

Annotation tools are cloud-based, onsite, or specific software solutions designed to annotate data ready for machine learning. A cloud-based data annotation tool is a tool created on a cloud platform. Objects are stored in the digital server so that data is secure.

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An on-premise data annotation tool is an application that resides on a company’s premises. It is preferred because it provides data security, instant responses to an issue, and better performance. These tools tend to require licenses, and their implementation and maintenance costs may be high.

There are three ways to create an annotation tool from scratch. You could buy one or lease them, make one yourself, or you could use a third-party service. Whatever you choose, spend some time analyzing your project needs before making this decision.

Essential Features that a Data Annotation Tool Should Have

There are a few crucial features that you should look out for when choosing a data annotation tool. Some of these include:

Quality Control of Data

If you want high-quality results from your machine learning and artificial intelligence models, you need high-quality training data. However, there’s no way to ensure that your training data has been annotated correctly without using an automated QC tool.

Staff Management

Though an annotation tool automates aspects of data entry, most require human input when dealing with exceptions and quality control. The Data Annotation tool that you choose must have strong staff management capabilities.

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Security

Whenever working with a sensitive PPI or IP, you’ll want to ensure it’s protected from unauthorized access.

Management of Datasets

An important aspect of annotation is defining a comprehensive workflow for managing the data you want to annotate – this includes importing, searching, sorting, filtering, and merging.

Annotation

Data annotation tools usually offer one or more kinds of annotations, including building and managing ontologies, labels, classes, attributes, specific annotation types, and/or auto-labeling.

The best data annotation tools will provide all of the above features. If you don’t find what you need in a particular tool, you might consider switching to another tool. 

Conclusion

Data Annotation allows you to specify rules about data format. These annotations are typically attached to classes, properties, methods, etc., but can also be applied to individual elements within the class hierarchy.

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In short, Data Annotations allow you to add metadata to your code, which helps developers understand how the data is used by the system. If you have any questions or anything else don’t hesitate to leave a reply in the comment section.

TAGGED: big data, data annotations
Ryan Kh May 8, 2022
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By Ryan Kh
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Ryan Kh is an experienced blogger, digital content & social marketer. Founder of Catalyst For Business and contributor to search giants like Yahoo Finance, MSN. He is passionate about covering topics like big data, business intelligence, startups & entrepreneurship. Email: ryankh14@icloud.com
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