Encontrados 5 documentos, a visualizar página 1 de 1
Influence of the region of origin on the mycobiota of grapes with emphasis on a...
Serra, Rita; Lourenço, Anália; Alípio, Pedro; Venâncio, ArmandoA three-year study was undertaken to investigate the fungal species present on the surface of grape berries from Portuguese vineyards in four winemaking regions. Emphasis was given to Aspergillus and Penicillium species due to their relevance for mycotoxin production. From the 3517 fungal strains detected 27 genera were identified. The region of origin markedly influenced the spoilage fungal population to which...
Automatic detection of SLS violation using knowledge based systems
Alípio, Pedro; Neves, José; Carvalho, PauloSelf-Management of multiservice network domains must include automatic detection of service quality violations in order to perform appropriate and timely responses, fostering the fulfilment of the service agreements committed with customers, or other ISPs. As knowledge based systems are capable of emulating human knowledge, they are presented here as convenient tools to specify heuristics for QoS violation dete...
An ontology for network services
Neves, José; Carvalho, Paulo; Alípio, PedroMost of the network service specifications use XML based models. However, as XML imposes a hierarchical structure, several types of relations may not be modeled. Therefore, richer specification languages are required in order to specify all network services vocabulary and how it relates with management tasks and with network configuration. This paper presents an ontology based model for network services, overco...
XML service level specification and validation
Alípio, Pedro; Lima, Solange; Carvalho, PauloThis paper addresses the problem of formalizing Service Level Specifications (SLSs) as a first step to simplify and automate the configuration and management of multiservice IP networks. A formal representation of SLSs will allow their automatic validation and processing, fostering the dynamic negotiation of SLSs and the interoperability among service management entities. In this way, taking advantage of XML ex...
Using CLIPS to detect network intrusions
Alípio, Pedro; Carvalho, Paulo; Neves, JoséThis paper shows how to build a network intrusion detection system by slightly modifying NASA's CLIPS source code, introducing features such as single and multiple string pattern matching, certainty factors and time-stamp operators. Several Snort functions and plugins were adapted and used for packet decoding and preprocessing to provide the basic requirements for such a system. The integration of CLIPS and Sno...
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