Lily: A parser generator for LL(1) languages

This paper discusses the design and implementation of Lily, a language for generating LL(1) language parsers, originally designed by Dr. Thomas J. Sager of the University of Missouri--Rolla. A method for the automatic generation of parser tables is described which creates small, highly optimized tables, suitable for conversion to minimal perfect hash functions. An implementation of Lily is discussed with attention to design goals, implementation of parser table generation, and table optimization techniques. Proposals are made detailing possibilities for further augmentation of the system. Examples of Lily programs are given as well as a manual for the system

A Web-based multimedia collaboratory. Empirical work studies in film archives

This report represents the latest study in the activity on Ecological Information Systems conducted in the Center for Human Machine Interaction situated at Ris National Laboratory and the University of Aarhus. The purpose of this activity is to give a description of the characteristics of work domains that will serve to outline the general context of concern to design of collaboratories. In addition, a set of preliminary implications for the design of a collaboratory are derived from the cognitive work analysis. To anticipate, further research on this approach to the design of collaboratories will show how the preceding analysis is likely to lead to a novel theoretical framework, called Ecological Collaborative Information Systems (ECIS), required for the design of collaboratories. The intention is to illustrate how the general principles of ECIS can be instantiated to develop a concrete design product: A crossdisciplinary and cross-cultural collaboratory to support customer service and professional research in archives. A web based Collaboratory Numerous valuable historic and cultural films and their sources are scattered in various national archives. Knowledge and usage of the multinational film material are severely impeded by access problems. To fully exploit the cultural film heritage internationally, a high degree of cross-disciplinary and international collaboration among professionals working with the film media is required. The Collaboratory for Annotation, Indexing and Retrieval of Digitized Historical Archive Material (Collate) is intended to foster and support collaboration on research, cultural mediation and preservation of films through a distributed multimedia repository. The collaboratory will provide webbased tools and interfac..

The definition of context and its implications for language teaching

The notion of context has come to the fore in recent years both in the study and teaching of language. Despite the oveniding importance attached to the concept and the\ud number and variety of definitions provided, the lack of a comprehensive and workable definition based on systematic analysis has become increasingly apparent.\ud The present thesis intends to clear up the confusion that surrounds the concept. Its main contribution is a theoretical framework of two distinct perspectives on context, which emerges as a result of the scrutiny of numerous definitions available in language study. The\ud framework is then applied to the investigation and categorisation of interpretations of context\ud offered by various theories in linguistics.\ud The pedagogic implementation of the framework aims to identifY which conception of context has informed a particular language teaching development. Once that has been\ud established, it is examined how the application of one or the other perspective determines the constitution and characteristics of various trends in language pedagogy.\ud It is demonstrated that a clear understanding of the type of context model adopted by different language teaching practices can reveal the incongruent nature of approaches and methods commonly described as communicative. As a corollary, more recent developments attempting to broaden the scope of the communicative movement are also explored