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Unsupervised Feature Selection for Outlier Detection on Streaming Data to Enhance Network Security

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F21%3A43963616" target="_blank" >RIV/49777513:23520/21:43963616 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.3390/app112412073" target="_blank" >https://doi.org/10.3390/app112412073</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3390/app112412073" target="_blank" >10.3390/app112412073</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Unsupervised Feature Selection for Outlier Detection on Streaming Data to Enhance Network Security

  • Original language description

    Over the past couple of years, machine learning methods—especially the outlier detection ones—have anchored in the cybersecurity field to detect network-based anomalies rooted in novel attack patterns. However, the ubiquity of massive continuously generated data streams poses an enormous challenge to efficient detection schemes and demands fast, memory-constrained online algorithms that are capable to deal with concept drifts. Feature selection plays an important role when it comes to improve outlier detection in terms of identifying noisy data that contain irrelevant or redundant features. State-of-the-art work either focuses on unsupervised feature selection for data streams or (offline) outlier detection. Substantial requirements to combine both fields are derived and compared with existing approaches. The comprehensive review reveals a research gap in unsupervised feature selection for the improvement of outlier detection methods in data streams. Thus, a novel algorithm for Unsupervised Feature Selection for Streaming Outlier Detection, denoted as UFSSOD, will be proposed, which is able to perform unsupervised feature selection for the purpose of outlier detection on streaming data. Furthermore, it is able to determine the amount of top-performing features by clustering their score values. A generic concept that shows two application scenarios of UFSSOD in conjunction with off-the-shell online outlier detection algorithms has been derived. Extensive experiments have shown that a promising feature selection mechanism for streaming data is not applicable in the field of outlier detection. Moreover, UFSSOD, as an online capable algorithm, yields comparable results to a state-of-the-art offline method trimmed for outlier detection.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Applied Sciences

  • ISSN

    2076-3417

  • e-ISSN

  • Volume of the periodical

    11

  • Issue of the periodical within the volume

    24

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    30

  • Pages from-to

    1-30

  • UT code for WoS article

    000735828400001

  • EID of the result in the Scopus database

    2-s2.0-85121349927