Index Compression Why compression in general) Use less disk space Saves a little money Keep more stuff in memory Increases speed Increase speed of data transfer from disk to memory [read compressed data decompress] is faster than [read uncompressed datal Premise: Decompression algorithms are fast True of the decompression algorithms we useIndex Compression 4 Why compression (in general)? ▪ Use less disk space ▪ Saves a little money ▪ Keep more stuff in memory ▪ Increases speed ▪ Increase speed of data transfer from disk to memory ▪ [read compressed data | decompress] is faster than [read uncompressed data] ▪ Premise: Decompression algorithms are fast ▪ True of the decompression algorithms we use