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Updated 2 months ago

Tree summarize

Thanks! By the way, any idea on how the GPTListIndex does tree_summarize? I thought it normally goes through each node one by one. Conceptually TreeIndex makes sense and how it would do tree_summarize, but i have no idea how a list index would do that

6 comments

LLogan M

Tree summarize basically makes a bottom up summary tree, where each node summarizes its two children

Then the top/root of the tree becomes the summary of the list index 👍

You can also use this mode on vector indexes, works not bad especially when the top k is a little higher

LLogan M

If you have a tree index and want a summary, you can use mode="summarize" instead of response_mode (a little weird I know lol)

JJoie

I see, for list, if top-k is like 50, it might make a tree of top 50 docs it founds and build a new summary tree

JJoie

But if you pass a tree index, that summary tree contains pretty much a summary of the entire doc

JJoie

so its doing summaries of summaries i imagine haha

LLogan M

Yea pretty much!

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