1. Database architects blog: The case for b-tree index structures. http://databasearchitects.blogspot.de/2017/12/ the-case-for-b-tree-index-structures.html. Database architects blog: The case for b-tree index structures. http://databasearchitects.blogspot.de/2017/12/ the-case-for-b-tree-index-structures.html.
2. Google's sparsehash documentation. https://github.com/sparsehash/ sparsehash/blob/master/src/sparsehash/sparse_hash_map. Google's sparsehash documentation. https://github.com/sparsehash/ sparsehash/blob/master/src/sparsehash/sparse_hash_map.
3. An in-depth look at google's first tensor processing unit (tpu). https://cloud.google.com/blog/big-data/2017/05/ an-in-depth-look-at-googles-first-tensor-processing-unit-tpu. An in-depth look at google's first tensor processing unit (tpu). https://cloud.google.com/blog/big-data/2017/05/ an-in-depth-look-at-googles-first-tensor-processing-unit-tpu.
4. Intel Xeon Phi. https://www.intel.com/content/www/us/en/products/ processors/xeon-phi/xeon-phi-processors.html. Intel Xeon Phi. https://www.intel.com/content/www/us/en/products/ processors/xeon-phi/xeon-phi-processors.html.
5. Moore Law is Dead but GPU will get 1000X faster by 2025. https://www.nextbigfuture.com/2017/06/ moore-law-is-dead-but-gpu-will-get-1000x-faster-by-2025.html. Moore Law is Dead but GPU will get 1000X faster by 2025. https://www.nextbigfuture.com/2017/06/ moore-law-is-dead-but-gpu-will-get-1000x-faster-by-2025.html.