• MapReduce algorithms for the k group nearest-neighbor query 

      Moutafis P., Vassilakopoulos M., García-García F., Corral A., Mavrommatis G., Iribarne L. (2019)
      Given two datasets of points (called Query and Training), the Group (K) Nearest Neighbor (GNN) query retrieves (K) points of the Training dataset with the smallest sum of distances to every point of the Query one. This ...