This is called depict-index. “tfdeepct is used to replace the original tf in the inverted index. The new index, deepct-index, can be searched by traditional bag-of-words search models such as bm25 or query likelihood models. The context-aware term weight tfdeepct Mexico Phone Number List is expected to bias search patterns toward the central terms of the passage, preventing the retrieval of off-topic passages. The main difference between deepct-index and a typical Mexico Phone Number List inverted index is that the weight term is based on tfdeepct instead of tf. This calculation is performed offline. » (dai, 2020) important - this does not mean that this is a new document indexing situation. The indexing of passages concerns the classification of passages. Regarding the upcoming passages indexing as a whole.
Google has made it clear that the new upcoming passages indexing changes are for a ranking change and not a document indexing change. Passages will not be indexed separately along with, or instead of, documents according to recent clarifications Mexico Phone Number List from google. Deepct-index (if used) seems to simply offer to add alternative ranking weights to the existing index, but replaces tf with tfdeepct for passages. Dai also makes it clear in the literature on deepct that "No new release list is created." but also refers to the use of deepct for passage indexing: “section 3 describes the deep contextualized term weighting framework (deepct), its use for passage indexing (deepct-index).
Important - I would like to caution this by saying that deepct-index is a central part of the deepct framework in the literature. Google research has Mexico Phone Number List acknowledged the use of deepct in their research paper “learning to rank with Mexico Phone Number List bert in tf ranking” in the acknowledgments section and throughout the article. “we would like to thank zhuyun dai from carnegie mellon university for kindly sharing his deepct recovery results.” ( han et al, 2020) deepct is also part of the current research model submissions for the full ranking currently being submitted to the ms marco pass ranking ranking.