Update to Vectara integration (#5950)

This PR updates the Vectara integration (@hwchase17 ): * Adds reuse of requests.session to imrpove efficiency and speed. * Utilizes Vectara's low-level API (instead of standard API) to better match user's specific chunking with LangChain * Now add_texts puts all the texts into a single Vectara document so indexing is much faster. * updated variables names from alpha to lambda_val (to be consistent with Vectara docs) and added n_context_sentence so it's available to use if needed. * Updates to documentation and tests --------- Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
2025-09-06 13:33:37 +00:00 · 2023-06-10 16:27:01 -07:00
parent e4224a396b
commit f8cf09a230
7 changed files with 161 additions and 96 deletions
--- a/docs/modules/indexes/vectorstores/examples/vectara.ipynb
+++ b/docs/modules/indexes/vectorstores/examples/vectara.ipynb
@@ -101,7 +101,7 @@
  },
  {
   "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 4,
   "id": "8429667e",
   "metadata": {
    "ExecuteTime": {
@@ -133,7 +133,7 @@
  },
  {
   "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 5,
   "id": "a8c513ab",
   "metadata": {
    "ExecuteTime": {
@@ -145,12 +145,12 @@
   "outputs": [],
   "source": [
    "query = \"What did the president say about Ketanji Brown Jackson\"\n",
-    "found_docs = vectara.similarity_search(query)"
+    "found_docs = vectara.similarity_search(query, n_sentence_context=0)"
   ]
  },
  {
   "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 6,
   "id": "fc516993",
   "metadata": {
    "ExecuteTime": {
@@ -164,7 +164,13 @@
     "name": "stdout",
     "output_type": "stream",
     "text": [
-      "Tonight, I’d like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer—an Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service. One of the most serious constitutional responsibilities a President has is nominating someone to serve on the United States Supreme Court. And I did that 4 days ago, when I nominated Circuit Court of Appeals Judge Ketanji Brown Jackson. One of our nation’s top legal minds, who will continue Justice Breyer’s legacy of excellence. A former top litigator in private practice. A former federal public defender.\n"
+      "Tonight. I call on the Senate to: Pass the Freedom to Vote Act. Pass the John Lewis Voting Rights Act. And while you’re at it, pass the Disclose Act so Americans can know who is funding our elections. \n",
+      "\n",
+      "Tonight, I’d like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer—an Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service. \n",
+      "\n",
+      "One of the most serious constitutional responsibilities a President has is nominating someone to serve on the United States Supreme Court. \n",
+      "\n",
+      "And I did that 4 days ago, when I nominated Circuit Court of Appeals Judge Ketanji Brown Jackson. One of our nation’s top legal minds, who will continue Justice Breyer’s legacy of excellence.\n"
     ]
    }
   ],
@@ -185,7 +191,7 @@
  },
  {
   "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 7,
   "id": "8804a21d",
   "metadata": {
    "ExecuteTime": {
@@ -201,7 +207,7 @@
  },
  {
   "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 8,
   "id": "756a6887",
   "metadata": {
    "ExecuteTime": {
@@ -214,9 +220,15 @@
     "name": "stdout",
     "output_type": "stream",
     "text": [
-      "Tonight, I’d like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer—an Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service. One of the most serious constitutional responsibilities a President has is nominating someone to serve on the United States Supreme Court. And I did that 4 days ago, when I nominated Circuit Court of Appeals Judge Ketanji Brown Jackson. One of our nation’s top legal minds, who will continue Justice Breyer’s legacy of excellence. A former top litigator in private practice. A former federal public defender.\n",
+      "Tonight. I call on the Senate to: Pass the Freedom to Vote Act. Pass the John Lewis Voting Rights Act. And while you’re at it, pass the Disclose Act so Americans can know who is funding our elections. \n",
      "\n",
-      "Score: 1.0046461\n"
+      "Tonight, I’d like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer—an Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service. \n",
+      "\n",
+      "One of the most serious constitutional responsibilities a President has is nominating someone to serve on the United States Supreme Court. \n",
+      "\n",
+      "And I did that 4 days ago, when I nominated Circuit Court of Appeals Judge Ketanji Brown Jackson. One of our nation’s top legal minds, who will continue Justice Breyer’s legacy of excellence.\n",
+      "\n",
+      "Score: 0.7129974\n"
     ]
    }
   ],
@@ -239,7 +251,7 @@
  },
  {
   "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 9,
   "id": "9427195f",
   "metadata": {
    "ExecuteTime": {
@@ -251,10 +263,10 @@
    {
     "data": {
      "text/plain": [
-       "VectorStoreRetriever(vectorstore=<langchain.vectorstores.vectara.Vectara object at 0x156d3e830>, search_type='similarity', search_kwargs={})"
+       "VectaraRetriever(vectorstore=<langchain.vectorstores.vectara.Vectara object at 0x122db2830>, search_type='similarity', search_kwargs={'lambda_val': 0.025, 'k': 5, 'filter': '', 'n_sentence_context': '0'})"
      ]
     },
-     "execution_count": 11,
+     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
@@ -266,7 +278,7 @@
  },
  {
   "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 10,
   "id": "f3c70c31",
   "metadata": {
    "ExecuteTime": {
@@ -278,10 +290,10 @@
    {
     "data": {
      "text/plain": [
-       "Document(page_content='Tonight, I’d like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer—an Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service. One of the most serious constitutional responsibilities a President has is nominating someone to serve on the United States Supreme Court. And I did that 4 days ago, when I nominated Circuit Court of Appeals Judge Ketanji Brown Jackson. One of our nation’s top legal minds, who will continue Justice Breyer’s legacy of excellence. A former top litigator in private practice. A former federal public defender.', metadata={'source': '../../modules/state_of_the_union.txt'})"
+       "Document(page_content='Tonight. I call on the Senate to: Pass the Freedom to Vote Act. Pass the John Lewis Voting Rights Act. And while you’re at it, pass the Disclose Act so Americans can know who is funding our elections. \\n\\nTonight, I’d like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer—an Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service. \\n\\nOne of the most serious constitutional responsibilities a President has is nominating someone to serve on the United States Supreme Court. \\n\\nAnd I did that 4 days ago, when I nominated Circuit Court of Appeals Judge Ketanji Brown Jackson. One of our nation’s top legal minds, who will continue Justice Breyer’s legacy of excellence.', metadata={'source': '../../../state_of_the_union.txt'})"
      ]
     },
-     "execution_count": 15,
+     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
@@ -316,7 +328,7 @@
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
-   "version": "3.11.3"
+   "version": "3.10.9"
  }
 },
 "nbformat": 4,
--- a/docs/modules/indexes/vectorstores/examples/weaviate.ipynb
+++ b/docs/modules/indexes/vectorstores/examples/weaviate.ipynb
@@ -209,7 +209,6 @@
   ]
  },
  {
-   "attachments": {},
   "cell_type": "markdown",
   "id": "8fc3487b",
   "metadata": {},
@@ -218,7 +217,6 @@
   ]
  },
  {
-   "attachments": {},
   "cell_type": "markdown",
   "id": "281c0fcc",
   "metadata": {},
@@ -236,7 +234,6 @@
   ]
  },
  {
-   "attachments": {},
   "cell_type": "markdown",
   "id": "503e2e75",
   "metadata": {},
@@ -273,7 +270,6 @@
   ]
  },
  {
-   "attachments": {},
   "cell_type": "markdown",
   "id": "fbd7a6cb",
   "metadata": {},
@@ -282,7 +278,6 @@
   ]
  },
  {
-   "attachments": {},
   "cell_type": "markdown",
   "id": "f349acb9",
   "metadata": {},
@@ -384,7 +379,7 @@
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
-   "version": "3.9.16"
+   "version": "3.10.9"
  }
 },
 "nbformat": 4,