Essays about: "Anomaly detection"

Showing result 1 - 5 of 164 essays containing the words Anomaly detection.

  1. 1. Anomaly Detection in Wait Reports and its Relation with Apache Cassandra Statistics

    University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap; Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Author : Abheyraj Singh Madhu; Sreemayi Rapolu; [2021]
    Keywords : Wait reports analysis; time-series anomaly detection; Apache Cassandra statistics; anomaly detection; behavior reporting tool;

    Abstract : Background: Apache Cassandra is a highly scalable distributed system that can handle large amounts of data through several nodes / virtual machines grouped together as Apache Cassandra clusters. When one such node in an Apache Cassandra cluster is down, there is a need for a tool or an approach that can identify this failed virtual machine by analyzing the data generated from each of the virtual machines in the cluster. READ MORE

  2. 2. Anomaly Detection in Log Files Using Machine Learning Techniques

    University essay from Blekinge Tekniska Högskola/Fakulteten för datavetenskaper

    Author : Lakshmi Geethanjali Mandagondi; [2021]
    Keywords : Anomaly Detection; Log Files; Machine Learning; Clustering; Outlier Detection;

    Abstract : Context: Log files are produced in most larger computer systems today which contain highly valuable information about the behavior of the system and thus they are consulted fairly often in order to analyze behavioral aspects of the system. Because of the very high number of log entries produced in some systems, it is however extremely difficult to seek out relevant information in these files. READ MORE

  3. 3. Anomaly Detection in Images and Videos Using Photo-Response Non-Uniformity

    University essay from Linköpings universitet/Datorseende

    Author : Kerstin Söderqvist; [2021]
    Keywords : ;

    Abstract : When photos and videos are increasingly used as evidence material, it is of importance to know if these materials can be used as evidence material or if the risk of them being forged is impending. This thesis investigates methods for detecting anomalous regions in images and videos using photo-response non-uniformity -- a fixed-pattern sensor noise that can be estimated from photos or videos. READ MORE

  4. 4. Investigation of Machine Learning Methods for Anomaly Detection and Characterisation of Cable Shoe Pressing Processes

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Elliot Härenby Deak; [2021]
    Keywords : Machine Learning; LSTM; kNN; Time-series Classification; Anomaly Detection;

    Abstract : The ability to reliably connect electrical cables is important in many applications. A poor connection can become a fire hazard, so it is important that cables are always appropriately connected. This thesis investigates methods for monitoring of a machine that presses cable connectors onto cables. READ MORE

  5. 5. Automating Log Analysis

    University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Author : Sri Sai Manoj Kommineni; Akhila Dindi; [2021]
    Keywords : Anomaly detection; Log analysis; Unsupervised learning;

    Abstract : Background: With the advent of the information age, there are many large numbers of services rising which run on several clusters of computers.  Maintaining such large complex systems is a very difficult task. Developers use one tool which is common for almost all software systems, they are the console logs. READ MORE