search for: vsencod

Hi, The size of the string generated by VSEncoder is 12592387, while that by InterpolativeEncoder is 8554817. When only encoding the first 1000lines, both cost 0ms to decode and VS cost 1ms to encode while Interpolative cost 0ms, 1000lines is just too little to catch the difference in my test. I upload the source code to https://github.com/...

...well. If there is someone who also uses Xapian in Windows, I think it will be helpful for us to talk about some issues in building in Windows together. Finally, I succeed in running some demo code in Release mode, but I still failed in Debug mode. I have finished reading the paper provided, about VSEncoding. And plan to read some source code concerning about this project. Then I will try to put up some my own proposal. And I will appreciate it much if you can give me some extra advice for beginning with the project "posting list encoding improvements". I'm looking forward to particip...

...7% k_gamma 172.9461803 242.8787555 15.24% gamma_opt 61.7750133 59.30571281 14.91% SIMD__kgamma 174.1829249 262.0594328 15.24% Thank you very much! P.S. In D. Lemire's paper: Decoding billions of integers per second through vectorization(CORR'12), SIMD-PORDelta can outperforms VSEncoding w.r.t decoding speed, while remaining nearly the same compression ratio, namely, bits/int. [1] D. Lemire et al. Decoding billions of integers per second through vectorization, CORR?12, http://arxiv.org/abs/1209.2137 Best wishes, Xudong Zhang -- --------------------------- Xudong Zhang +86-...