An Intrusion Detection System (IDS) protects computer networks against attacks and intrusions, in combination with firewalls and anti-virus systems. An IDS is therefore a crucial element of a network security posture. One class of IDS is called signature-based network IDSs as they monitor network traffic, looking for evidence of malicious behavior as specified in attack descriptions (referred t...

Normal traffic can provide worms with a very good source of information to camouflage themselves. In this paper, we explore the concept of polymorphic worms that mutate based on normal traffic. We assume that a worm has already penetrated a system and is trying to hide its presence and propagation attempts from an IDS. We focus on stealthy worms that cannot be reliably detected by increases in ...

high processing loads, need for complicated and frequent updating, and high false alarm are some of the challenges in designing anomaly detection and misuse detection systems. we propose a new network-based intrusion detection system (ids) that resolves such shortcomings. our scheme fuses anomaly detection and misuse detection systems, which has not been utilized so far in existing systems. in ...

The aim of this project is to compare (i) the acoustic vs. visual characteristics of infant-directed speech (IDS), (ii) IDS vs adult-directed speech (ADS), and (iii) the acoustic/visual characteristics of IDS and ADS cross-linguistically, in Australian English (AusE) vs Japanese. Acoustic data are presented along with preliminary visual data. Native AusE and Japanese speaking mothers spoke to t...

Various aspects of motherese also known as infant-directed speech (IDS) have been studied for many years. As it is a widespread phenomenon, it is suspected to play some important roles in infant development. Therefore, our purpose was to provide an update of the evidence accumulated by reviewing all of the empirical or experimental studies that have been published since 1966 on IDS driving fact...

Iduronate 2-sulfatase (IDS, EC 3.1.6.13) is required for the lysosomal degradation of heparan sulfate and dermatan sulfate. Mutations causing IDS deficiency in humans result in the lysosomal storage of these glycosaminoglycans and Hunter syndrome, an X chromosome-linked disease. We have isolated and sequenced a 2.3-kilobase cDNA clone coding for the entire sequence of human IDS. Analysis of the...

An Intrusion Detection System (IDS) for Cognitive Radio Network (CRN) is proposed. The considered IDS is constructed by combining two classic mechanisms for CRN intrusion detection, namely the Localization mechanism and the Reputation mechanism. The composition of the mechanisms is done with the aid of a Genetic Algorithm (GA) responsible for calibrating the IDS, that is, for attributing “weigh...

Adults typically address infants in a special speech mode called infant-directed speech (IDS). IDS is characterized by a special prosody (i.e., higher pitched, slower and hyperarticulated) and a special lexicon ("baby talk"). Here we investigated which areas of the adult brain are involved in processing IDS, which aspects of IDS (prosodic or lexical) are processed, to what extent the experience...