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Sustainable development in rural areas
(1992)Schriftenreihe / ETH Zürich, Institut für AgrarwirtschaftWorking Paper -
Retrieval von Grafikdokumenten
(1992)ETH, Eidgenössische Technische Hochschule Zürich, Departement Informatik, Institut für InformationssystemeReport -
Betriebswirtschaftliche Aspekte der Erwerbskombination
(1992)Schriftenreihe / ETH Zürich, Institut für AgrarwirtschaftWorking Paper -
Attractive invariant manifolds for maps: Existence, smoothness and continuous dependence on the map
(1992)SAM Research ReportA global invariant manifold result for maps is derived with conditions that are easy to verify for applications. The result supplies existence and smoothness of the attractive manifold as well as additional useful properties. It is also shown that a Ck,1-perturbation of the map yields a Ck-perturbation of the manifold. Moreover, it is proved that if there is an attractive invariant manifold for the time-T map of an ODE then this manifold ...Report -
Espace, société et territoire
(1992)Publications / ETH Zürich, Institut d'Economie RuraleWorking Paper -
A temporal extension of the deductive database system ProQuel
(1992)ETH, Eidgenössische Technische Hochschule Zürich, Departement Informatik, Institut für InformationssystemeReport -
A predicate transformer approach to knowledge and knowledge-based protocols
(1992)ETH, Eidgenössische Technische Hochschule Zürich, Departement Informatik, Institut für ComputersystemeReport -
Reducing duplicate work in relational join(s): a unified approach
(1992)ETH, Eidgenössische Technische Hochschule Zürich, Departement Informatik, Institut für InformationssystemeMost join algorithms can be extended to reduce wasted work when several tuples contain the same value of the join attribute. We show that separating detection of duplicates from their exploitation improves modularity and makes it easier to implement whole families ofhierarchy-exploitingjoin algorithms that avoid duplication. The technique is also used to provide an execution technique for star-like patterns of joins around a central ...Report -
An integrodifferential equation which is neither Fredholm nor Volterra
(1992)IPS research reportReport -
Extensible attribute grammars
(1992)TIK ReportThis report introduces a new idea to make attribute grammars (AG) extensible. Both the context-free grammar and the attribution system of an AG may be extended. This concept is a valuable structuring technique when defining language-based programming environments or compilers. For instance, it allows passes of a multipass compiler to be decomposed into different grammar levels, which renders the definition much clearer. Another application ...Report