See https://registrationcenter.intel.com/en/forms/?productid=2558&licensetype=2 Intel DAAL is the "Intel® Data Analytics Acceleration Library" Gentoo has already the MKL, TBB (albeit outdated), IPP in sci-libs Unfortunately DAAL is missing. Given the same licensing, that shouldn't be a problem.
Would you like to try to write an ebuild for it? It may get to portage via the proxy maint team.