Add BERTopic.

LLMTopicDetection_BERTopic/bertopic/backend/__init__.py

@@ -0,0 +1,60 @@
+from ._base import BaseEmbedder
+from ._word_doc import WordDocEmbedder
+from ._utils import languages
+from bertopic._utils import NotInstalled
+
+# OpenAI Embeddings
+try:
+    from bertopic.backend._openai import OpenAIBackend
+except ModuleNotFoundError:
+    msg = "`pip install openai` \n\n"
+    OpenAIBackend = NotInstalled("OpenAI", "OpenAI", custom_msg=msg)
+
+# Cohere Embeddings
+try:
+    from bertopic.backend._cohere import CohereBackend
+except ModuleNotFoundError:
+    msg = "`pip install cohere` \n\n"
+    CohereBackend = NotInstalled("Cohere", "Cohere", custom_msg=msg)
+
+# Multimodal Embeddings
+try:
+    from bertopic.backend._multimodal import MultiModalBackend
+except ModuleNotFoundError:
+    msg = "`pip install bertopic[vision]` \n\n"
+    MultiModalBackend = NotInstalled("Vision", "Vision", custom_msg=msg)
+
+# Model2Vec Embeddings
+try:
+    from bertopic.backend._model2vec import Model2VecBackend
+except ModuleNotFoundError:
+    msg = "`pip install model2vec` \n\n"
+    Model2VecBackend = NotInstalled("Model2Vec", "Model2Vec", custom_msg=msg)
+
+# FasteEmbed Embeddings
+try:
+    from bertopic.backend._fastembed import FastEmbedBackend
+except ModuleNotFoundError:
+    msg = "`pip install fastembed` \n\n"
+    FastEmbedBackend = NotInstalled("FastEmbed", "FastEmbed", custom_msg=msg)
+
+
+# Langchain Embedddings
+try:
+    from bertopic.backend._langchain import LangChainBackend
+except ModuleNotFoundError:
+    msg = "`pip install langchain` \n\n"
+    LangChainBackend = NotInstalled("LangChain", "LangChain", custom_msg=msg)
+
+
+__all__ = [
+    "BaseEmbedder",
+    "WordDocEmbedder",
+    "OpenAIBackend",
+    "CohereBackend",
+    "Model2VecBackend",
+    "MultiModalBackend",
+    "FastEmbedBackend",
+    "LangChainBackend",
+    "languages",
+]