Update README.md

Author: prrao87

README.md

@@ -153,7 +153,7 @@ data.
 | 2 | Find **all possible** direct or indirect `Transfer` flows/paths **from** an account owned by George **to** to an account owned by `[email protected]` (This person's name is "Edward"). For indirect transfers, only find those up to length 5.  <br>**Hint:** Specify variable-length or [recursive](https://docs.kuzudb.com/cypher/query-clauses/match/#match-variable-lengthrecursive-relationships) relationships in Cypher using the Kleene star operator `*` followed by the min and max length for the paths.
 | 3a | Find a **shortest** `Transfer` path **from** George's account to Edward's account. <br>**Hint:** Kùzu's Cypher dialect has a native clause to match [a single shortest path](https://docs.kuzudb.com/cypher/query-clauses/match/#single-shortest-path).
 | 3b | Find **all shortest** `Transfer` paths **from** George's account to Edward's account. <br>**Hint:** Kùzu's Cypher dialect has a native clause to match [all shortest paths](https://docs.kuzudb.com/cypher/query-clauses/match/#all-shortest-paths).
-| 4 | Find **all** indirect connections of **any type** between the `Person` nodes representing George and Edward up to length 4. We are searching for any possible paths, i.e., the labels of the edges do not have to be only `Owns` or `Transfer`; they can also be `LivesIn` as well. That is, the path between the two people can consist of any sequence of _any_ labels. Further, we also do not need the connections to be in a particular direction. <br>**Hint:** Use Cypher's flexible relationship matching using [multiple labels](https://docs.kuzudb.com/cypher/query-clauses/match/#match-relationships-with-multi-labels) or [any labels](https://docs.kuzudb.com/cypher/query-clauses/match/#match-relationships-with-any-label). Also use the undirected relationship patterns.
+| 4 | Find **all** indirect connections of **any type** between the `Person` nodes representing George and Edward up to length 5. We are searching for any possible paths, i.e., the labels of the edges do not have to be only `Owns` or `Transfer`; they can also be `LivesIn` as well. That is, the path between the two people can consist of any sequence of _any_ labels. Further, we also do not need the connections to be in a particular direction. <br>**Hint:** Use Cypher's flexible relationship matching using [multiple labels](https://docs.kuzudb.com/cypher/query-clauses/match/#match-relationships-with-multi-labels) or [any labels](https://docs.kuzudb.com/cypher/query-clauses/match/#match-relationships-with-any-label). Also use the undirected relationship patterns for the `-[:Transfer]-` to avoid getting an empty result.
 | 5 | **a)** Find the account that has the highest number of incoming transactions. <br>**Hint:** Use [group by and aggregate](https://docs.kuzudb.com/cypher/query-clauses/return/#group-by-and-aggregations) to *count* of incoming edges. For reference, all possible aggregate functions are [here](https://docs.kuzudb.com/cypher/expressions/aggregate-functions/). <br> **b)** Find an important account that has received the most dollars. <br>**Hint:** Do a [group by and aggregate](https://docs.kuzudb.com/cypher/query-clauses/return/#group-by-and-aggregations) to *sum* of the amounts on the incoming edges.
 | 6 | Find the accounts that are the "most central" using a graph algorithm. We will use the notion of highest “betweenness centrality” (BC). <br> **Note:** This part will be done in Python via the NetworkX library.
 

python/networkx_example.ipynb

@@ -48,7 +48,7 @@
     "import pandas as pd\n",
     "import networkx as nx\n",
     "\n",
-    "db = kuzu.Database(\"../ex_db_kuzu\")\n",
+    "db = kuzu.Database(\"../ex_kuzu_db\")\n",
     "conn = kuzu.Connection(db)\n",
     "kuzu.__version__"
    ]
@@ -111,12 +111,12 @@
        "    <tr>\n",
        "      <th>0</th>\n",
        "      <td>1</td>\n",
-       "      <td>0.029412</td>\n",
+       "      <td>0.023420</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
        "      <td>5</td>\n",
-       "      <td>0.062092</td>\n",
+       "      <td>0.054466</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>2</th>\n",
@@ -139,8 +139,8 @@
       ],
       "text/plain": [
        "  id  betweenness_centrality\n",
-       "0  1                0.029412\n",
-       "1  5                0.062092\n",
+       "0  1                0.023420\n",
+       "1  5                0.054466\n",
        "2  3                0.153595\n",
        "3  2                0.000000\n",
        "4  9                0.091503"
@@ -208,31 +208,31 @@
        "    <tr>\n",
        "      <th>0</th>\n",
        "      <td>069392555</td>\n",
-       "      <td>5392.0</td>\n",
-       "      <td>0.450980</td>\n",
+       "      <td>5392</td>\n",
+       "      <td>0.428649</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
        "      <td>082388575</td>\n",
-       "      <td>6841.0</td>\n",
+       "      <td>6841</td>\n",
        "      <td>0.235294</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>2</th>\n",
        "      <td>040162526</td>\n",
-       "      <td>7115.0</td>\n",
-       "      <td>0.202614</td>\n",
+       "      <td>7115</td>\n",
+       "      <td>0.180283</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>3</th>\n",
        "      <td>067853119</td>\n",
-       "      <td>5251.0</td>\n",
+       "      <td>5251</td>\n",
        "      <td>0.176471</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>4</th>\n",
        "      <td>080785523</td>\n",
-       "      <td>8044.0</td>\n",
+       "      <td>8044</td>\n",
        "      <td>0.153595</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -241,11 +241,11 @@
       ],
       "text/plain": [
        "  account_id  balance  betweenness_centrality\n",
-       "0  069392555   5392.0                0.450980\n",
-       "1  082388575   6841.0                0.235294\n",
-       "2  040162526   7115.0                0.202614\n",
-       "3  067853119   5251.0                0.176471\n",
-       "4  080785523   8044.0                0.153595"
+       "0  069392555     5392                0.428649\n",
+       "1  082388575     6841                0.235294\n",
+       "2  040162526     7115                0.180283\n",
+       "3  067853119     5251                0.176471\n",
+       "4  080785523     8044                0.153595"
       ]
      },
      "execution_count": 7,
@@ -312,7 +312,7 @@
        "    <tr>\n",
        "      <th>0</th>\n",
        "      <td>Amanda</td>\n",
-       "      <td>0.450980</td>\n",
+       "      <td>0.428649</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
@@ -322,7 +322,7 @@
        "    <tr>\n",
        "      <th>2</th>\n",
        "      <td>Jon</td>\n",
-       "      <td>0.202614</td>\n",
+       "      <td>0.180283</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>3</th>\n",
@@ -340,9 +340,9 @@
       ],
       "text/plain": [
        "    person        bc\n",
-       "0   Amanda  0.450980\n",
+       "0   Amanda  0.428649\n",
        "1   Edward  0.235294\n",
-       "2      Jon  0.202614\n",
+       "2      Jon  0.180283\n",
        "3  Michael  0.176471\n",
        "4    Carol  0.153595"
       ]