MNIST database
... that the best error rate a computer program has gotten on the MNIST database of handwritten digits is 0.23 percent?
... that the best error rate a computer program has gotten on the <b id="mwBZg"><a href="./MNIST_database" id="mwBZk" rel="mw:WikiLink" title="MNIST database">MNIST database</a></b> of handwritten digits is 0.23 percent?