Information Sciences, Volume 50

Volume 50, Number 1, February 1990

• Kazuo Nakamura:
  Canonical fuzzy numbers of dimension two and fuzzy utility difference for understanding preferential judgments. 1-22
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• Azriel Rosenfeld:
  Pyramid algorithms for finding global structures in images. 23-34
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• Ryszard Jakubowski:
  Decomposition of complex shapes for their structural recognition. 35-71
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• P. P. Das, Biswanath N. Chatterji:
  Hyperspheres in digital geometry. 73-91
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• Antonio di Nola, Salvatore Sessa, Witold Pedrycz:
  On some finite fuzzy relation equations. 93-109
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Volume 50, Number 2, March 1990

• Liu Wang-Jin:
  Fuzzy prime ideals and fuzzy radical ideals. 111-122
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• P. P. Das, Biswanath N. Chatterji:
  Octagonal distances for digital pictures. 123-150
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• Alexis Koster:
  A functional programming-directed database machine. 151-183
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• Liu Wang-Jin:
  On some systems of simultaneous equations in a completely distributive lattice. 185-196
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• William Perrizo, Chun-Shwu Chen:
  Composite semijoins in distributed query processing. 197-218
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Volume 50, Number 3, April 1990

• Frank Wm. Tompa, José I. Icaza:
  Adaptive selection of query execution strategies by learning automata. 219-240
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• Ronald R. Yager:
  On the associations between variables in expert systems including default relations. 241-274
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• Christian Ronse:
  Order-configuration functions: Mathematical characterizations and applications to digital signal and image processing. 275-327
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