This paper presents an information theory based detection framework for covert channels. We first show that the usual notion of interference does not characterize the notion of deliberate information flow of covert channels. We then show that even an enhanced notion of “iterated multivalued interference” can not capture flows with capacity lower than one bit of information per channel use. We t...

We present a filtering mechanism using two cross-lingual information extraction (CLIE) systems for improving document relevance of cross-lingual information retrieval (CLIR) for queries conforming to predefined templates. Experiments on retrieving Chinese documents in response to English GALE arrest queries show that this approach can obtain a 12.7% absolute improvement in relevance (representi...

How should we use information to make good decisions? Historically, the view has been that normatively superior decision making is the product of complex optimization processes that rationally consider and integrate all available information. Such optimization processes are well beyond the capabilities of mere mortals and in many cases are computationally intractable by any means. Fortunately, ...

Various information on pharmaceuticals is provided to healthcare professionals in order to ensure the safe use of pharmaceuticals. In addition to package inserts that contain information on indication, dosage, and administration, some review reports of new drugs which contain the summary of the results of clinical trials submitted for new drug application and review process as well as manuals f...