Scaling Analytics Solutions Tech Talk (3/2/11) | This tech talk discusses the architecture and features behind Facebook’s new realtime analytics solutions. Hear how we scaled our systems to handle... | By Engineering at Meta | FacebookThis tech talk discusses the architecture and features behind Facebook’s new realtime analytics solutions. Hear how we scaled our systems to handle...
Using Finite State Transducers in Lucene
FSTs are finite-state machines that map a term (byte sequence) to an arbitrary output. They also look cool: That FST maps the sorted words mop, moth, pop, star, stop and top to their ordinal number (0, 1, 2, ...). As you traverse the arcs, you sum up the outputs, so stop hits 3 on the s and 1 on the o, so its output ordinal is 4. The outputs can be arbitrary numbers or byte sequences, or combinati
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