Yingyi Bu | 391f09e | 2015-10-29 13:49:39 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | * or more contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. The ASF licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | |
| 20 | select element {'user_name':user.name,'similar_users':similar_users} |
| 21 | from Users as user |
| 22 | with similar_users as ( |
| 23 | select element {'user_name':similar_user.name,'similarity':similarity} |
| 24 | from Users as similar_user |
| 25 | with similarity as jaccard_similarity(user.interests,similar_user.interests) |
| 26 | where ((user != similar_user) and (similarity >= 0.75)) |
| 27 | order by similarity desc |
| 28 | limit 10 |
| 29 | ) |
| 30 | ; |