0 the process of removing something, especially by force: --
She had two extractions.
The extraction of minerals has damaged the countryside.
2 the process of removing a substance from the ground or from another substance: --
Hard-rock mining refers to the excavation and extraction of hard minerals such as those containing metals such as gold, or gems such as diamonds.
The local economy is overwhelmingly dependent on oil and gas extraction.
The extraction of information is performed in two stages: ®rst, the perception and, second, the cognition.
Decisions about quality criteria and data extraction were made by one reviewer and checked by a second, with any differences in opinion resolved through discussion.
This process is generally referred to as feature extraction.
The context of production is separated from the household and extraction, production, distribution and consumption are globalised.
The context of production is separated from the household and most significantly, in fact, extraction, production, distribution, and consumption are globalised.
This extraction has been founded on a systematic study of dictionary definitions.
There were no differences between pupae from control and selection lines in fat reserves (measured by ether extraction ; unpublished data).
As entity names provide important content in a text document, named entity recognition is a very important step in information extraction.