Call for Articles Geometric Hashing: A New Way to Manage Shape Data The handling of geometric shapes is a core problem in a variety of applications and scientific domains, from robotics, computer vision, and digital libraries to medical imaging, molecular biology, and video compression. Examples include the recognition by a robot of objects in cluttered scenes, the reconstruction of shapes from partial information, the maintainance of parts archives in a CAD/CAM system, the structural comparison of protein molecules, and the detection of potential drugs fitting a given receptor shape. The method chosen to index shape features is critical. It must be efficient enough to enable fast retrieval of relevant stored items, accurate enough to preserve the important geometric constraints of objects, and stable enough to remain invariant under prespecified sets of allowed shape transformations. Geometric hashing, a model-based, store-and-hypothesize class of algorithms proposed over a decade ago, is an increasingly promising approach to index-based store-and-retrieve schemes for geometrical database access. Successful, time-efficient, real-world applications have been built. The Winter 1998 theme of IEEE CS&E will present the current state of the art as practiced in a variety of successful real-world applications, and pointers to potential new uses. Possible topics include: -- integration of shape representation and efficient indexing -- extensions of the framework -- applications of the method -- analysis -- comparative studies. Important dates: Send 8 hard copies of original manuscripts and an electronic version by May 15, 1997, to one of the guest editors: Isidore Rigoutsos, IBM TJ Watson Research Center, PO Box 704, Yorktown Heights, NY 10598 USA; e-mail rigoutso@watson.ibm.com Haim J. Wolfson, Computer Science Dept., School of Mathematical Sciences, Tel Aviv University, Tel Aviv 69 978 ISRAEL; e-mail wolfson@math.tau.ac.il Authors will be notified of acceptance decision by June 30, 1997. Complete author guidelines available at IEEE Computer Society, fax 1-714-821-4010, email cchweh@computer.org