Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"Anomalous behavior"”.
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Anomalous Behavior Analysis in Social Networks and Consumer Review Websites
… gains. To check the infiltration of these anomalous users, we face two challenges: (1) studying opinions to learn their behaviors, and (2) detecting opinion spam to reduce their effects. We study the behaviors of anomalous users in reviews collected on Yelp, Amazon and social data from …
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Advanced Threat Intelligence: Interpretation of Anomalous Behavior in Ubiquitous Kernel Processes
… with unknown or evasive applications, while behavior-based solutions usually leave most of the interpretative work to a human analyst. This thesis presents a multi-stage system able to detect and classify anomalous behavior within a user session by observing and analyzing ubiquitous kernel …
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Spatial statistical-physical systems
… constraints and particle systems with anomalous behavior. Ising model is a mathematical model of ferromagnetism, which describes how magnetic spins, with values -1 or 1, change their states under nearest neighbor interactions and the external magnetic field. We study a topologically …
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A Scrutiny of the Anomalous Behavior of Electrolytically Generated Alkyl Radicals: Part I. The Mechanism of The C(beta)-C(gamma) Cleavage of Gamma-Hydroxy Acids During Kolbe Electrolysis. Part Ii. The Anodic Oxidation of Carbon Radicals to Carbonium Ions
Made available in DSpace on 2014-12-05T19:37:09Z (GMT). No. of bitstreams: 1 5904488.pdf: 5800313 bytes, checksum: aaed9a6be9fbbbf160cf13af32294dc1 (MD5) Previous issue date: 1959
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The Triple Pot and techniques in distributed system call intrusion detection
… look at the method of analyzing system calls for anomalous behavior. Programs use system calls to gain access to functions from an operating systems kernel. Therefore, it is theoretically possible to detect when a hacker may be exploiting a program by analyzing system call patterns of an …
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Continuum and Atomistic Simulation of Electrically-Mediated Flow Through Nanometer Channels
… or electrolytes confined in nanochannels exhibit anomalous behavior, which cannot be explained by the classical theories. Our results also indicate that if the critical channel dimension is larger than ten molecular diameters, then the classical theory can be used to describe fluid/ion …
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Effects of flow on the activity of a WO₃-SiO₂ olefin disproportionation catalyst
… increased. The phenomenon responsible for the anomalous behavior was investigated. The relationship between reactant flow rate and activity was found to be independent of the flow rate history when an anhydrous propylene feed was used. A hysteresis effect was observed when the feed contained …
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A carbon-13 nuclear magnetic resonance study of a series of cyclohexanol amines
… the cyclohexyl amines and the amino alcohols. An anomalous behavior was observed for the trans-2-ammonium salt.
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Low Energy Electronic Raman Scattering in Cuprate High Temperature Superconductors
… as a function of temperature, however, shows an anomalous behavior. A magnetic field is observed to affect Raman spectra in way similar to the way temperature does. Nevertheless, the peak intensity change as a function of magnetic field is different from that of temperature. The upper critical …
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How Promotions Effect Consumer Purchases
… provides a blueprint for predicting individual behavior under the assumption that objectives and decisions are rationally identified and executed. Under certain conditions, actions reveal preferences and the ability to observe these preferences allows for the possibility to study the effects of …
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Hardware Architectures for Low-power In-Situ Monitoring of Wireless Embedded Systems
… we can respond upon the detection of anomalous behavior. Therefore, post-deployment visibility is a foundation upon which other runtime reliability techniques can be built. However, visibility into system operation diminishes significantly once the devices are remotely deployed, and we …
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SHIPS’ TRAJECTORIES PREDICTION USING RECURRENT NEURAL NETWORKS BASED ON AIS DATA
… is to develop a method for predicting the future behavior of ships and detecting anomalous behavior based on their past location coordinates and a set of context features. We use a Recurrent Neural Network model with inputs extracted from Automated Information System (AIS) data. This data includes …
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Centrality dependence of two-particle correlations in relativistic heavy ion collisions
… particular focus is devoted to investigating any anomalous behavior in the centrality dependence of correlation functions, as previous results suggest existence of such tendencies around Npart [approx.] 50. Correlation functions are calculated for a wide kinematic region of ... from data obtained …
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Detecting Irregular Network Activity with Adversarial Learning and Expert Feedback
… to learn effective representations of normal and anomalous behavior in wireless networks. Rigorous performance comparisons of CAAD with several state-of-the-art anomaly detection techniques has been conducted and verified that CAAD yields a mean performance improvement of 92.84%. Additionally, …
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Preliminary investigation of the effect of surface fluctuations on sound amplitude in guide mode propagation.
… simple theory at low surface-wave frequencies. Anomalous behavior was observed for the higher frequencies of the surface wave spectrum. Possible mechanisms for this inconsistency are postulated and discussed.
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Scaling Up Network Analysis and Mining: Statistical Sampling, Estimation, and Pattern Discovery
… across various domains, including social, behavioral, biological, transportation, communication, and financial domains. Across all these domains, networks arise as a natural and rich representation for data. Studying these real-world networks is crucial for solving numerous problems that …
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Photophysics of carbon nanotubes
… In particular, certain phonon modes exhibit anomalous behavior that significantly affects resonance Raman spectra of small-diameter carbon nanotubes. We have developed the extended tight-binding and advanced force-constant models that properly take into account the curvature effects in the …
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Geosynchronous Satellite Maneuver Classification and Orbital Pattern Anomaly Detection via Supervised Machine Learning
… shift maneuvers can be used to identify anomalous behavior in GEO. In this work, a satellite’s behavior is considered nominal if it adheres to the satellite’s pattern of life (PoL)—its previous on-orbit behavior made up of sequences of both natural and non-natural behavioral modes, …
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Geosynchronous Satellite Maneuver Classification and Orbital Pattern Anomaly Detection via Supervised Machine Learning
… shift maneuvers can be used to identify anomalous behavior in GEO. In this work, a satellite’s behavior is considered nominal if it adheres to the satellite’s pattern of life (PoL)—its previous on-orbit behavior made up of sequences of both natural and non-natural behavioral modes, …
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Nuclear dependence of proton-induced Drell-Yan dimuon production at 120 GeV at SeaQuest
… on various models that attempt to define the anomalous behavior of nuclear modification as seen in deep inelastic lepton scattering, a phenomenon generally known as the EMC effect.
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