How do you summarize a very long document?

[lowlyocean]

From what I've made sense of so far, you'd summarize a very long document in Langchain using something like MapReduceDocumentsChain with stuffing, map reduce, or map-rerank... is there a canonical way to summarize a long document with Langflow?

[dosubot[bot]]

Hey @lowlyocean! I'm here to help you out with any bugs, questions, or contributions you have in mind. Let's tackle this together!

To summarize a very long document using Langflow, you can utilize the CombineDocsChain with different chain types such as stuff, map_reduce, or map_rerank. Here's a brief overview of each method:

1. Stuff: This method inserts all documents into a single prompt and passes it to a language model (LLM). It's suitable for small documents or when dealing with a few documents.

2. MapReduce: This approach applies an LLM to each document individually (Map step), treating the output as a new document, and then combines these outputs into a single result (Reduce step). It's useful for handling larger documents by compressing them if necessary.

3. MapRerank: This method runs an initial prompt on each document to score the certainty of the answer, returning the highest-scoring response.

These strategies allow you to effectively summarize long documents by choosing the appropriate method based on the document's size and complexity ^[1].

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[lowlyocean]

FYI - this bot hallucinates, and makes searching Google for a correct answer more difficult