| Hierarchical Bitmap Index: An Efficient and Scalable Indexing Technique for Set-Valued Attributes Recent countries visiting this post |  |
 | 12 | United States |
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| Hierarchical Bitmap Index: An Efficient and Scalable Indexing Technique for Set-Valued Attributes Recent countries visiting this post | |
| 12 | United States |
| 1 | |
| 1 | Egypt |
| 1 | Germany |