On computing the Hausdorff distance between freeform surfaces, there are fewer previous results. For freeform curves, Alt and Scharf [9] and [10] presented an algorithm for the Hausdorff distance computation, based on a characterization of the possible points where the distance can be attained. Chen et al.
citizen(Noun) A person that is a legally recognized as a member of a state, with associated rights and obligations. When the rebellion broke out, the United States promptly evacuated its citizens from the area. citizen(Noun) A member of a state that is not a monarchy; used as antonym to subject. citizen(Noun) A person that is a legally recognized resident of a city or town. citizen(Noun) A resident of any particular place to which the subject feels to belong.
A digital citizen refers to a person utilizing information technology (IT) in order to engage in society, politics, and government participation. K. Mossberger, et al. define digital citizens as those who use the Internet regularly and effectively.