We discuss a particular approach to automatic abstracting, where an abstract is created by extracting hnportant sentences from a text. A primary purpose of the paper is to demonstrate that the reliability of human supplied annotations on corpora has crucial effects on how well an automatic abstracting system performs. The corpus is developed through human judgements on possible s~,mmary sentenc...

Abstracting the behaviour of a specification is a key technique for dealing with the complexity of such tasks as reachability analysis and test generation. We adapted classical data-flow analysis techniques to abstract variables in SDL processes and addressed the problem of finding conservative state abstractions. Prototype tools have been developed to implement those techniques and applied to ...

The ever-growing amount of documents (electronic or other) has increased the value of abstracts, and abstracting systems and services, as instruments for concentrating and supplying relevant information. Ongoing research in different disciplines, with abstracting as the common subject matter, points to the usefulness of the paradigm concept. This perspective would provide the coherence necessar...

information organization (i.e., cataloging, classification, abstracting and indexing) is a crucial service in libraries and information centers. modern and standard practices in this regard started around 1960s in iran. this paper outlines the development of modern practices in information organization in iran. it illustrates how iranian libraries and information centers implement standard prac...

EFFECTIVE R SOURCE SHARING PRESUPPOSES an infrastructure which permits users to locate materials of interest in both print and electonic formats. TWO approaches for providing this are union catalogs and Z39.50-based distributed search systems. The advantages and limitations of each approach are considered, paying particular attention to a realistic assessment of 239.50 implementations. This art...

The structures in nature are great lessons for human study. Having been in development for several billion years, only the most successful structural forms have survived. The resourcefulness of material use, the underlying structural systems and the profound capacity to respond to a variety of climatic and environmental forces make natural form tremendous exemplars to human architectures. The w...