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Research that explores the use of machine learning for automatic security classification of information objects is about to emerge. In this paper we investigate the opportunity to increase the machine learning performance by taking advantage from time information that is "hidden" in the documents of the training set. This paper presents a technique to do(More)
With the increasing risk of data leakage, information guards have emerged as a novel concept in the field of security which bears similarity to spam filter that examine the content of the exchanged messages. A guard is defined as a high-assurance device used to control the information flow, typically from a domain with a "high" level of confidentiality,(More)
This paper presents a class based dynamic admission control algorithm for the IEEE 802.11e Enhanced Distributed Channel Acccess (EDCA) standard. The strength of our admission control is the dynamic and flexibility of the algorithm, which adapts to the situation and thus achieves higher throughput than other admission controls for 802.11 EDCA. The(More)
This paper presents a unique approach for a model-based admission control algorithm for the IEEE 802.11e Enhanced Distributed Channel Access (EDCA) standard. The analytical model used as the foundation for the algorithm covers both non-saturation and saturation conditions. This allows us to keep the system out of saturation by monitoring several variables.(More)
Sentiment lexicons are useful to automatically extract sentiment from text. In this paper, we generate several Norwegian sentiment lexicons by extracting sentiment information from two different types of Norwegian text corpus, namely, news corpus and discussions forums. The methodology is based on the Point wise Mutual Information (PMI). We introduce a(More)
Sentiment lexicons are the most used tool to automatically predict sentiment in text. To the best of our knowledge, there exist no openly available sentiment lexicons for the Norwegian language. Thus in this paper we applied two different strategies to automatically generate sentiment lexicons for the Norwegian language. The first strategy used machine(More)
This paper focuses on how the IEEE 802.11e standard for Quality of Service (QoS) in Wireless Local Area networks (WLANs) can interoperate with the Differentiated Services (DiffServ) architecture for end-to-end IP QoS. It explores to which extent the 802.11e Enhanced Distributed Coordinated Access (EDCA) can meet the requirements from the DiffServ Per Hop(More)
Cross-domain information exchange is necessary to obtain information superiority in the military domain, and should be based on assigning appropriate security labels to the information objects. Most of the data found in a defense network is unlabeled, and usually new unlabeled information is produced every day. Humans find that doing the security labeling(More)