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DataFunTalk
DataFunTalk
Feb 15, 2021 · Artificial Intelligence

Deep Tree Matching (TDM): Evolution and Practice in Large-Scale Retrieval at Alibaba

This article explains Alibaba's Deep Tree Matching (TDM) technology, covering the challenges of large‑scale match retrieval, the progression from classic two‑stage recall to tree‑based indexing, max‑heap tree modeling, beam‑search retrieval, and the joint model‑index learning across TDM 1.0, 2.0, and 3.0, highlighting significant offline and online performance gains and future research directions.

AlibabaDeep Learningbeam search
0 likes · 15 min read
Deep Tree Matching (TDM): Evolution and Practice in Large-Scale Retrieval at Alibaba
DataFunTalk
DataFunTalk
Aug 16, 2019 · Artificial Intelligence

Tree‑based Deep Match (TDM): Design, Implementation, and Applications in Large‑Scale Retrieval

This article presents a comprehensive overview of the Tree‑based Deep Match (TDM) algorithm, describing the evolution of retrieval technology, the limitations of traditional Match‑Rank pipelines, the design of a one‑stage tree‑indexed deep matching model, its training methodology, performance gains on public datasets, and its deployment in Alibaba’s advertising and e‑commerce platforms.

Deep LearningLarge ScaleRecommendation systems
0 likes · 23 min read
Tree‑based Deep Match (TDM): Design, Implementation, and Applications in Large‑Scale Retrieval