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SkyInTheSea · Jan 19, 2019 · 95411e5 · 95411e5
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 Table of Contents
 =================
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-   * [NSG : Navigating Spread-out Graph For Approximate Nearest Neighbor Search](#nsg--navigating-spread-out-graph-for-approximate-nearest-neighbor-search)
-      * [Introduction](#introduction)
-      * [Performance](#performance)
-         * [Datasets](#datasets)
-         * [Compared Algorithms](#compared-algorithms)
-            * [Graph-based ANNS algorithms:](#graph-based-anns-algorithms)
-            * [Other popular ANNS algorithms:](#other-popular-anns-algorithms)
-         * [Results](#results)
-      * [Building Instruction](#building-instruction)
-         * [Prerequisites](#prerequisites)
-         * [Compile On Ubuntu/Debian](#compile-on-ubuntudebian)
-         * [(Optional) Docker Usage](#optional-docker-usage)
-      * [Usage](#usage)
-         * [Building NSG Index](#building-nsg-index)
-            * [Step 1. Build kNN Graph](#step-1-build-knn-graph)
-            * [Step 2. Convert kNN Graph to NSG](#step-2-convert-knn-graph-to-nsg)
-         * [Searching via NSG Index](#searching-via-nsg-index)
-      * [Parameters used in Our Paper](#parameters-used-in-our-paper)
-         * [NSG Building](#nsg-building)
-            * [Step 1. Build kNN Graph](#step-1-build-knn-graph-1)
-            * [Step 2. Convert kNN Graph to NSG](#step-2-convert-knn-graph-to-nsg-1)
-         * [Pre-built kNN Graph and NSG Index](#pre-built-knn-graph-and-nsg-index)
-      * [Performance on Taobao's E-commerce Data](#performance-on-taobaos-e-commerce-data)
-      * [Reference](#reference)
-      * [TODO](#todo)
-      * [License](#license)
+* [Introduction](#introduction)
+* [Performance](#performance)
+	 * [Datasets](#datasets)
+	 * [Compared Algorithms](#compared-algorithms)
+			* [Graph-based ANNS algorithms:](#graph-based-anns-algorithms)
+			* [Other popular ANNS algorithms:](#other-popular-anns-algorithms)
+	 * [Results](#results)
+* [Building Instruction](#building-instruction)
+	 * [Prerequisites](#prerequisites)
+	 * [Compile On Ubuntu/Debian](#compile-on-ubuntudebian)
+	 * [(Optional) Docker Usage](#optional-docker-usage)
+* [Usage](#usage)
+	 * [Building NSG Index](#building-nsg-index)
+			* [Step 1. Build kNN Graph](#step-1-build-knn-graph)
+			* [Step 2. Convert kNN Graph to NSG](#step-2-convert-knn-graph-to-nsg)
+	 * [Searching via NSG Index](#searching-via-nsg-index)
+* [Parameters used in Our Paper](#parameters-used-in-our-paper)
+	 * [NSG Building](#nsg-building)
+			* [Step 1. Build kNN Graph](#step-1-build-knn-graph-1)
+			* [Step 2. Convert kNN Graph to NSG](#step-2-convert-knn-graph-to-nsg-1)
+	 * [Pre-built kNN Graph and NSG Index](#pre-built-knn-graph-and-nsg-index)
+* [Performance on Taobao's E-commerce Data](#performance-on-taobaos-e-commerce-data)
+* [Reference](#reference)
+* [TODO](#todo)
+* [License](#license)
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 ## Introduction