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Co-authored-by: Ubuntu <ubuntu@ip-172-31-28-63.ap-northeast-1.compute.internal>

Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

* add hilander model implementation draft

* use focal loss

* fix

* change data root

* add necessary scripts

* update download links

* update

* update example table

* fix

* update readme with numbers

* add empty folder

* only eval at the end

* set up hilander

* inform results may fluctuate

* address comments
Co-authored-by: sneakerkg <xiaotj1990327@gmail.com>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-19-212.us-east-2.compute.internal>