Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » P »

precision


(pri-sizh´&n) (n.) (1) When used in reference to search engines, the ability of the search engine to return only relevant documents in the search results instead of documents that may not have relevance. Words in a search query that have more than one meaning have a greater chance of returning results that are not relevant as the search engine can only guess what information the user is searching for. Precision often is expressed as a percentage and is measured by dividing the number of relevant documents produced in a search by the total number of resultant documents that the search query presented. For example, if 100 pages are found in a search and 85 of those pages are relevant then the search had 85% precision.

Also see How Web Search Engines Work in the Did You Know . . . ? section of Webopedia.

(2) When used to describe floating-point numbers, the number of bits used to hold the fractional part. The more precision a system uses, the more exactly it can represent fractional quantities.

Floating-point numbers are often classified as single precision or double precision. A double-precision number uses twice as many bits as a single-precision value, so it can represent fractional quantities much more exactly.







TECH RESOURCES FROM OUR PARTNERS
DID YOU KNOW?
Keeping Data Secure Is Tougher than Ever

If hackers get their hands on your company's data, they can wreak havoc on customer relationships and cause tremendous damage to your brand and... Read More »

Windows XP: Move Along, There's Nothing to See Here

After more than 12 years of holding the title of most popular operating system in the world, Windows XP is taking center stage for its final... Read More »

Report: The Role of Big Data in the Marketing Industry

According to a new study from Infogroup Targeting Solutions, we can expect to see companies spend heavily on big data marketing initiatives in... Read More »

QUICK REFERENCE
How to Create a Desktop Shortcut to a Website

Creating desktop shortcuts to a websites is useful. When you double-click the icon from your desktop it automatically launches the browser and... Read More »

Flash Data Storage Vendor Trends

Although it is almost impossible to keep up with the pace of ongoing product releases, here are three recent highlights in the flash data storage... Read More »

15 Important Big Data Facts for IT Professionals

Keeping track of big data trends, research and statistics gives IT professionals  a solid foundation to plan big data projects. Here are 15... Read More »