Natural and man-made hazards, disasters, and concerns such as the increasing amount of terrorism, cause insecurity for people and society. Therefore, crisis management with respect to urban structure becomes one of the core tasks of governments. Population information is essential during the rescue planning process. Population density can be estimated by using various statistical methods. Often...

Information extraction consists in identifying classes of events and relationships between extracted instances of these classes. In general, extracted data usually fills slots in a template and is stored in tables. We propose to extend the usual approach to the use of an object database. Information extraction tools have a conceptual representation as schema components: concept classes, meta-co...

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realm of User Interface Management Systems (UIMS) with a built-in knowledge about the specific kinds of techniques used by object-oriented databases, we have designed a system that allows a user to customize a database interface with minimal programming. Knowledge about object-oriented database constructs such as classes, groupings, etc., allows FaceKit to semi-automatically create graphical co...

We address a question posed by T. Sibley and Stan Wagon. They proved that rhombic Penrose tilings in the plane can be 3-colored, but a key lemma of their proof fails in the natural 3D generalization. In that generalization, an object is built from bricks, each of which is a parellelopiped, and they are glued face-toface. The question is: How many colors are needed to color the bricks of any suc...

The Brown Object Storage System (BOSS) provides extensible support for persistence in a distributed multi-client, multi-server environment. BOSS is built on a loosely coupled, asynchronous computation model. One of the artifacts of asynchrony is increased extensiblity. This paper presents the storage class, the means by which the BOSS client interface is extended. The BOSS prototype is complete...

in this paper, an object-based, highly scalable, lossy-to-lossless 3d wavelet coding approach for volumetric medical image data (e.g. mr and ct) is proposed. the new method, called 3dobhs-spiht, is based on the well known set partitioning in hierarchical trees (spiht) algorithm and supports both quality and resolution scalability. the 3d input data is grouped into groups of slices (gos) and eac...

We have built the first family of tagless interpretations for a higher-order typed object language in a typed metalanguage (Haskell or ML) that require no dependent types, generalized algebraic data types, or postprocessing to eliminate tags. The statically type-preserving interpretations include an evaluator, a compiler (or staged evaluator), a partial evaluator, and call-by-name and call-by-v...