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artificial intelligence

(Encyclopedia)artificial intelligence (AI), the use of computers to model the behavioral aspects of human reasoning and learning. Research in AI is concentrated in some half-dozen areas. In problem solving, one mus...

Longinus, c.213–273, Greek rhetorician and philosopher

(Encyclopedia)Longinus (Cassius Longinus), c.213–273, Greek rhetorician and philosopher of the Neoplatonic school. He taught rhetoric at Athens. He later became counselor to Queen Zenobia of Palmyra; when the ant...

Papagos, Alexander

(Encyclopedia)Papagos, Alexander päˈpägôs [key], 1883–1955, Greek soldier and political leader. Commissioned an officer in the Greek army in 1906, he rose rapidly through the ranks. In 1935 he became minister...

Seferis, George

(Encyclopedia)Seferis, George sĕfĕrˈēs [key] (Giorgos Sefiriades), 1900–1971, Greek poet. Educated at the Univ. of Paris, he returned to Greece, where he had a distinguished career as a diplomat, including se...

Delambre, Jean Baptiste Joseph

(Encyclopedia)Delambre, Jean Baptiste Joseph zhäN bätēstˈ zhôzĕfˈ dəläNˈbrə [key], 1749–1822, French astronomer and mathematician. He was a member of the bureau of longitudes from 1795 and professor at...

Aumann, Robert John

(Encyclopedia)Aumann, Robert John, American-Israeli mathematician, b. Frankfurt, Germany, Ph.D. Massachusetts Institute of Technology, 1955. He immigrated with his family to the United States in 1938, and moved to ...

Sylvester, James Joseph

(Encyclopedia)Sylvester, James Joseph, 1814–97, English mathematician. He studied at Cambridge for four years after 1831, but because degrees were limited to members of the Church of England and he was a Jew, he ...

Cauchy, Augustin Louis, Baron

(Encyclopedia)Cauchy, Augustin Louis, Baron ōgüstăNˈ lwē bärôNˈ kōshēˈ [key], 1789–1857, French mathematician. He was professor simultaneously (1816–30) at the École polytechnique, the Sorbonne, and...

Gardner, Percy

(Encyclopedia)Gardner, Percy, 1846–1937, English classical archaeologist. He served as field assistant to W. M. Flinders Petrie, helping him excavate Naucritus, a Greek settlement in Egypt. From 1887 to 1925 he w...

Naucratis

(Encyclopedia)Naucratis nŏkˈrətĭs [key], ancient city of Egypt, on the Canopic branch of the Nile, 45 mi (72 km) SE of Alexandria. It was probably given (7th cent. b.c.) by Psamtik to Greek colonists from Milet...