ALL libraries (COBIB.SI union bibliographic/catalogue database)
-
Preoptimistične ocene točnosti napovednih modelov : ilustracija na primeru skupne uporabe tehnik vzorčenja in navzkrižnega preverjanja = Over-optimistic assessment of the performance of prediction models : an illustration based on the joint use of sampling techniques and cross-validationTupkušić, Mirza ; Blagus, RokPrediction models use various statistical methods for building classification rules to classify units into pre-specified groups based on the learning data. In practice, the data are often not ... suitable for the chosen procedure and they need to be pre-processed before training the classifier. An important example are imbalanced data where the naïve approach can lead to poor accuracy for the minority class. Many data augmentation approaches have been developed to alleviate this issue. However, when using these techniques, one needs to be careful to correctly evaluate the performance of the classifier in terms of its predictive accuracy, because incorrect evaluation can lead to an overly optimistic estimate of the classifier’s performance. We explain in detail why this happens and showcase the different contributing factors. The results are illustrated using various performance measures, various data augmentation techniques, and various cross-validation techniques. Our results can help the developers of prediction models to correctly evaluate predictive ability of the derived model, as well as to understand and critically appraise whether the predictive ability of the model was correctly estimated or the evaluation was too optimistic.Source: Informatica medica slovenica. - ISSN 1318-2129 (Letn. 27, št. 1/2, 2022, str. 1-13)Type of material - article, component part ; adult, seriousPublish date - 2022Language - slovenianCOBISS.SI-ID - 152443651
Author
Tupkušić, Mirza |
Blagus, Rok
Topics
napovedni model |
neuravnoteženi podatki |
navzkrižno preverjanje |
prediction models |
cross-validation |
rare events
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Tupkušić, Mirza | |
Blagus, Rok | 30722 |
Source: Personal bibliographies
and: SICRIS
Select pickup location:
Material pickup by post
Delivery address:
Address is missing from the member's data.
The address retrieval service is currently unavailable, please try again.
By clicking the "OK" button, you will confirm the pickup location selected above and complete the reservation process.
By clicking the "OK" button, you will confirm the above pickup location and delivery address, and complete the reservation process.
By clicking the "OK" button, you will confirm the address selected above and complete the reservation process.
Notification
Automatic login and reservation service currently not available. You can reserve the material on the Biblos portal or try again here later.
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
Pickup location | Material status | Reservation |
---|
Reservation in progress
Please wait a moment.
Reservation was successful.
Reservation failed.
Reservation...
Membership card:
Pickup location: