This paper describes WAVE, a fully automatic, incremental induction algorithm for learning information extraction rules. Unlike traditionM batch learners, WAVE learns from a stream of training instances, not a set. WAVE overcomes the inherent problems of incremental operation by maintaining a generalization hierarchy of rules. Use of a hierarchy allows similar rules to be found efficiently, pro...

Data fusion is the process of combining multiple representations of the same object, extracted from several external sources, into a single and clean representation. It is usually the last step of an integration process, which is executed after the schema matching and the entity identification steps. More specifically, data fusion aims at solving attribute value conflicts based on user-defined ...

When an incremental parser gets the next word, its expectations about upcoming grammatical structures can change. When a word greatly constrains these grammatical expectations, uncertainty is reduced. This elimination of possibilities constitutes information processing work. Formalizing this notion of information processing work yields a complexity metric that predicts human repetition accuracy...

Capital controls, policy measures used by governments to regulate cross-country financial flows, have became standard options in many emerging market economies. This paper will focus on what capital controls convey about the state of economy and implications such revelation for efficacy. Empirically, this finds that important information participants use improve their understanding economic fun...

Nowadays, in order for an organisation to be competitive, it must be able to adapt quickly to its dynamic environment. In this paper, we discuss the need for information systems which are capable to evolve to the same extent as organisations do. Requirements of evolving organisations on their information systems are identified, followed by alternative approaches to adequate information systems ...