• Object representation by means of nonminimal division quadtrees and octrees 

      Ayala Vallespí, M. Dolors; Brunet Crosa, Pere; Juan, R.; Navazo Álvaro, Isabel (1985-01)
      Article
      Accés restringit per política de l'editorial
      Quadtree representation of two-dimensional objects is performed with a tree that describes the recursive subdivision of the more complex parts of a picture until the desired resolution is reached. At the end, all the leaves ...
    • On the cost of fixed partial match queries in K-d trees 

      Duch Brown, Amalia; Lau Laynes-Lozada, Gustavo Salvador; Martínez Parra, Conrado (2016-08-01)
      Article
      Accés obert
      Partial match queries constitute the most basic type of associative queries in multidimensional data structures such as K-d trees or quadtrees. Given a query q=(q0,…,qK-1) where s of the coordinates are specified and K-s ...