Abstract. With the rapid development of computer technology and geographic information system (GIS), three-dimensional (3D) data are becoming an important aspect GIS. It can provide more than traditional two-dimensional (2D) surveying mapping data. plays vital role in city building management. In this paper, 3D modeling different type collected, including til t dataata, model data, BIM undergro...

How can a real-estate agent respond to inquiries quickly and intelligently? Thètrick' could be using a simple table to brieey outline the general information and a complete book to reference the details. Such a method can be generalized to the construction of a multiple layered database (MLDB), a useful database organization technique for cooperative query answering, database browsing, query op...

Current active database management systems (ADBMS) are typically realized as monolithic, tightly integrated software systems. Separating the active database mechanisms from the DBMS, would open the opportunity to use them in a variety of ways and environments. In order to build the respective decoupled active database facilities, construction systems are required. The realization of such a cons...

MOTIVATION The exponential growth of sequence databases poses a major challenge to bioinformatics tools for querying alignment and annotation databases. There is a pressing need for methods for finding overlapping sequence intervals that are highly scalable to database size, query interval size, result size and construction/updating of the interval database. RESULTS We have developed a new in...

A combination of information retrieval (RI) tools and structural recognition (SR) tools are used for the automatic construction of a generic model of documents. The automatic construction takes as input a structured database of the documents which is converted into SGML, giving a logical representation of their content. the RS tools are applied to the postscript representation of the documents ...