| #------------------------------------------------------------- |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # |
| #------------------------------------------------------------- |
| |
| # G: N x M, p: M x 1, e: N x 1: u: 1 x M |
| # ./sparkDML2.sh SystemDS.jar -f PageRank.dml -args "in/g" "in/p" "in/e" "in/u" 0.85 3 "out/w" |
| |
| G = read($1); |
| p = read($2); |
| e = read($3); |
| u = read($4); |
| alpha = $5; |
| max_iteration = $6; |
| i = 0; |
| |
| while( i < max_iteration ) { |
| p = alpha * (G %*% p) + (1 - alpha) * (e %*% u %*% p); |
| i += 1; |
| } |
| |
| write(p, $7); |