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A general study of parallel non-deterministic parsing and translation à la Earley is developped formally, based on non-deterministic pushdown acceptor-transducers. Several results (complexity and efficiency) are established, some new and other previously proved only in special cases. As an application, we show that for every family of deterministic context-free pushdown parsers (e.g. precedence, LR(k),...
Modern computer based systems are complex multi-systems consisting of many connected individual subsystems; each one of them is typically also a multicomputer system. The subsystems in a multi-system can be either geographically distributed or locally connected systems. Typical examples of computer based systems are medical systems, process control systems, communications systems, weapon systems and...
A general study of parallel non-deterministic parsing and translation à la Earley is developped formally, based on non-deterministic pushdown acceptor-transducers. Several results (camplexity and efficiency) are established, same new and other previously proved only in special cases. As an application, we show that for every family of deterministic context-free pushdown parsers (e.g. precedence, LR(k),...
Free software, also known as Open-Source, is a new player in the software world. Though it is mostly popularized by the Linux operating system, it is not limited to it. More and more software applications, tools and libraries are available as free software, for free as well as proprietary platforms. In the COTS business, this raises a host of issues regarding both COTS producers and COTS users, issues...
The growing use of COTS software components instead of in-house developments brings non-negligible loss of control of the systems in which they are used, and increases dependency on COTS components’ producers, particularly critical in the case of obsolescence. This loss of control and dependency can be compensated only by extremely reliable, accurate and continuously updated knowledge of the software...
The intent of this position statement is to relate our experience with the actual use of a syntax directed editor (Mentor [5]) in different contexts: teaching, real software production, software maintenance and associated tasks, language design and development, development of programming tools and new programming structures.
The goal of the eCots1 project is to setup an open portal for collecting, sharing and improving accurate information on software COTS products and producers. The core information will be freely available on the Internet [1], with secure replication mechanisms available under subscription, allowing enterprises to synchronize their private intranet information with the portal data. The eCots project...
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