Information-Extraction Through Reduction Methods In Some Formal Systems
نویسندگان
چکیده
منابع مشابه
Some statistical methods for evaluating information extraction systems
We present new statistical methods for evaluating information extraction systems. The methods were developed to evaluate a system used by political scientists to extract event information from news leads about international politics. The nature of this data presents two problems for evaluators: 1) the frequency distribution of event types in international event data is strongly skewed, so a ran...
متن کاملApplication of Formal Methods in Development of Information Systems
During the 1960s IS community faced the failure of unsuccessful development of complex information systems, in spite of heaving large computers and higher programming languages available. This situation is known as “software crisis” and solution is recommended at conferences sponsored by NATO in 1968. and 1969. After participants have come up with the conclusion that more engineer-like discipli...
متن کاملBrowsing Large Concept Lattices through Tree Extraction and Reduction Methods
Browsing concept lattices from Formal Concept Analysis becomes a problem as the number of concepts can grow significantly with the number of objects and attributes. Interpreting the lattice through direct graph-based visualisation of the Hasse diagram rapidly becomes difficult and more synthetic representations are needed. In this work we propose an approach to simplify concept lattices by extr...
متن کاملMethods for knowledge reduction in inconsistent ordered information systems
Knowledge reduction is one of the most important problems in the study of rough set theory. However, in real-world, most of information systems are based on dominance relations in stead of the classical equivalence relation because of various factors. The ordering of properties of attributes plays a crucial role in those systems. To acquire brief decision rules from the systems, knowledge reduc...
متن کاملEmpirical Methods in Information Extraction
Most corpus-basedmethods in natural language processing (NLP)were developed toprovide an arbitrary text-understanding application with one or more general-purpose linguistic capabilities. This is evident from the articles in this issue of AI Magazine. Charniak and Ng/Zelle, for example, describe techniques for part-of-speech tagging, parsing, and word-sense disambiguation. These techniques were...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annals of the Japan Association for Philosophy of Science
سال: 1986
ISSN: 0453-0691,1884-1228
DOI: 10.4288/jafpos1956.7.33