Data quality issues have taken on increasing importance in recent years. In our research, we have discovered that many “data quality” problems are actually “data misinterpretation” problems – that is, problems with data semantics. In this paper, we first illustrate…

We address the problem of integrating objects from a source taxonomy into a master taxonomy. This problem is not only pervasive on the nowadays web, but also important to the emerging semantic web. A straightforward approach to automating this process…

A series-parallel directed acyclic graph, or SP-dag, contains nodes that are either in series or logically in parallel. We present a data structure and algorithm to efficiently determine, in a single serial walk of the dag, whether two nodes are…

We show how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules (RuleML Logic Programs) and ontologies (OWL/DAML+OIL Description Logic) via analyzing their expressive intersection. To do so, we define a new intermediate knowledge representation (KR)…

Existen elementos que, aunque presentes en cantidades muy pequeñas en los tejidos, son nutrientes esenciales. Ellos realizan funciones indispensables para el mantenimiento de la vida, el crecimiento y la reproducción. Su ingesta inadecuada puede dañar la función celular y fisiológica…

Los moluscos son muy apreciados como alimento para el hombre y en Venezuela se aprovechan comercialmente almejas (Asaphis deflorata), ostras (Pinctada imbricata y Crassostrea rhizophorae), pepitonas (Arca zebra), pulpos (Optopus vulgaris), calamares (Loligo plei), vieiras (Amusium papyraceum), mejillones (Perna perna…

For 20 years, and more intensively during the last decade, indigenous knowledge has challenged the regime of intellectual property. If this field of law has been, in the past, challenged by new technology, it is now, with the problematic of…

Intellectual capital, as opposed to traditional conceptions of intellectual property, is neither as simple to define nor as straightforward to protect and regulate. As companies in the financial services sector attempt the efficient management of increasingly voluminous and strategically important…

Utilizamos información publicada e inédita sobre mamíferos, reptiles y anfibios amenazados para identificar áreas de gran riqueza de especies amenazadas dentro de la Reserva de Biósfera Bañados del Este (Uruguay). Esa información fue luego comparada con una propuesta de zonificación…

An indirect crisis, the terrorist attacks of September 1 1 , is used as a catalyst to review the tasks of the Nuclear Nonproliferation Regime. However, it is insufficient to initiate a comprehensive change to the regime to incorporate the…