Powered by OpenAIRE graph
Found an issue? Give us feedback
addClaim

Märgendite silumine klassifikaatorite logistilisel kalibreerimisel

Authors: Pärtel, Liina Anette;

Märgendite silumine klassifikaatorite logistilisel kalibreerimisel

Abstract

This thesis gives a detailed overview of calibrating probabilistic classifiers with logistic calibration also known as Platt scaling. Experiments were carried out to find better label smoothing parameter values than what is used in logistic calibration. Experiments were carried out on toy datasets, varying the size and distribution of classes. The results also show that the current label smoothing parameter formula for Platt scaling is not the optimal value for any of the chosen datasets. It is also noteworthy that the optimal label smoothing parameter depends on both class size and error rate.

Antud töös kirjeldati põhjalikult tõenäosuslike klassifikaatorite kalibreerimist logistilise kalibreerimise ehk Platti skaleerimise meetodiga. Töö käigus viidi läbi eksperimendid otsimaks logistilise kalibreerimise meetodi silumismäära väärtusest paremat väärtust. Eksperimendid viidi läbi sünteetilistel andmestikel, varieerides nii klasside suurust kui klassijaotust. Eksperimentide tulemustest sai teada, et Platti skaleerimise meetodis valitud silumismäär pole ühelgi vaadeldaval andmestikul optimaalne. Veel leiti, et optimaalne silumismäär sõltub lisaks klasside suurusest ka mudeli veamäärast.

Countries
Estonia, Germany
Related Organizations
  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!