The index sizes of those aligners are 2.3GB (Bowtie), 6.1GB (SOAP2), 12.4GB (PerM), and 19.5GB (mrsFast).
The index sizes of Ψ-RA(4), Ψ-RA 8), Ψ-RA 82), and Ψ-RA(I2), where Ψ-Rand) refers to Ψ-RA wI6h a sparsification factor of D, are 3.4GB, 2.0GB, 1.6GB, and 1.3GB respectively.
Why does Danny Sullivan say that index size cannot be assessed objectively?
The index size of our index is smaller than those of other indexes.
And the way they will be compared is index size and, more importantly, relevance/ranking of results.
With growing index the compression induced perennial index size reduction shows as a spiky graph.
Likewise, the index size was also increased to occupy about 5 GB of RAM.
Since the index size is 1,000,000, the memory size for the index is 4*1,000,000 bytes (about 4 MB).
Search engine Cuil launched earlier this evening, claiming a bigger index size (120 billion web pages) than Google or any other search engine.
According to Danny Sullivan, who wrote about this mess last year, they pushed the birthday date forward in 2005 to all for the announcement of a index size milestone.
However, indexing all the words will come with the trade-off of a slightly larger index size.
