Tree index query engine
The tree index in LlamaIndex creates a hierarchical structure for managing and querying text documents efficiently. However, think of something other than a classical hierarchical structure! The tree index engine optimizes the hierarchy, content, and order of the nodes, as shown in Figure 3.5:
Figure 3.5: Optimized tree index
The tree index organizes documents in a tree structure, with broader summaries at higher levels and detailed information at lower levels. Each node in the tree summarizes the text it covers. The tree index is efficient for large datasets and queries large collections of documents rapidly by breaking them down into manageable optimized chunks. Thus, the optimization of the tree structure allows for rapid retrieval by traversing the relevant nodes without wasting time.
Organizing this part of the pipeline and adjusting parameters such as tree depth and summary methods can be a specialized task for a team member. Depending...
