ALERT

[FREE DEMO] Deploy Your Enterprise Cloud in Minutes

Heuristic Filtering

Definition - What does Heuristic Filtering mean?

Heuristic filtering refers to the use of various algorithms and resources to examine text or content in specific ways. The word heuristic describes a type of analysis that relies on experience or specific intuitive criteria, rather than simple technical metrics. The use of high-level algorithms allows for heuristic analysis of content, where humans can program computers to think in certain ways rather than just applying a purely quantitative analysis.

Heuristic filtering is most widely used on the Internet to filter email and Web access.

Techopedia explains Heuristic Filtering

One common type of heuristic filtering is called Bayesian filtering. This is commonly applied to filtering email spam. Bayesian filtering helps a computer to recognize certain words and the likelihood that they're related to spam. In general, techniques like this involve training the machine to apply a higher-level analysis of content in order to filter out spam.

Anyone who has a public email service with a spam folder has probably seen some type of heuristic spam filtering at work. As spam continues to be a major challenge in email communication, technology experts are trying to come up with more diverse ways to identify spam. Alternatives to heuristic spam filtering include IP blacklists and URL filtering, which use IP addresses and other information rather than trying to identify spam through content analysis. Critics of heuristic spam filtering argue that a filter based on word association is not always entirely effective in separating spam from legitimate email.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
Tweat cdn.techopedia.com
"Techopedia" on Twitter


'@Techopedia'
Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Resources
The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.