Towards Data Science By Utkarsh Mangal

The Reversal Curse: Why a Language Model That Knows “A Is B” Can’t Tell You “B Is A”

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The article explains that a language model can remember a fact only in the direction it was trained, leading it to fail when asked to reverse that fact. It uses a toy example to illustrate how this limitation arises. The piece highlights the asymmetry in how models learn and recall relationships.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at Towards Data Science.

arXiv AI
Jul 28

LEDOM: Reverse Language Model

arXiv:2507. 01335v4 Announce Type: replace-cross Abstract: Autoregressive language models are trained exclusively left-to-right.

By Xunjian Yin, Sitao Cheng, Yuxi Xie, Xinyu Hu, Li Lin, Xinyi Wang, Liangming Pan, William Yang Wang, Xiaojun Wan
Towards Data Science
Sep 2

A RAG That Says “Not in This Document” Has to Show Four Kinds of Evidence

The article discusses the importance of a Retrieval-Augmented Generation (RAG) system providing clear evidence when it states that information is not present in a document. It outlines four distinct types of evidence that should accompany such a claim to avoid presenting a confident but incorrect answer or an unsupported “no answer.” The piece emphasizes that each evidence type serves as a safeguard against misinformation in enterprise document intelligence.

By Kezhan Shi