Towards Data Science

Both Charts Are Right. So Why Do They Disagree?

The article discusses a statistical paradox illustrating how combining data can reverse the narrative presented by individual charts. It explains that both charts can be correct yet appear contradictory when aggregated. The piece highlights the importance of careful data integration to avoid misleading conclusions.

Towards Data Science
Oct 6

A Google Team Measured Half of My Argument, and Left the Other Half Open

The article titled "A Google Team Measured Half of My Argument, and Left the Other Half Open" is part of a series on spec‑driven test automation (Part 3). It discusses how a Google team evaluated only half of the author’s argument, leaving the remaining portion unresolved. The post was originally published on the Towards Data Science platform.

By Gal Arav
Towards Data Science
Sep 30

How Many Stories Can Your Data Tell?

The article explores how different data representations can alter our interpretation of the same dataset, highlighting that the way data is visualized or structured can lead to varying narratives. It examines the implications of these storytelling choices for data analysis and communication. The piece emphasizes the importance of thoughtful data presentation in shaping conclusions.

By Sara A. Metwalli
Towards Data Science
1d ago

Why a Tiny GPT Can Know Two Facts and Still Not Connect Them

A tiny GPT model was trained to memorize every fact presented to it, yet it failed to answer any question that required combining two of those facts. The author tested a one-line fix suggested in a recent paper, which only partially resolved the issue. The post highlights the limitations of small language models in integrating multiple pieces of information.

By Utkarsh Mangal
Towards Data Science
Oct 29

When Labels Say No, But Embeddings Say Yes

The article "When Labels Say No, But Embeddings Say Yes" discusses how conventional retrieval metrics can overlook meaningful similarities between items. It highlights the limitations of relying solely on labels for evaluation and suggests that embeddings can capture nuanced relationships that labels miss. The piece underscores the importance of considering alternative metrics to better assess similarity in data retrieval tasks.

By Theophano Mitsa
Towards Data Science
Sep 1

What We Miss About Missing Values

The article titled "What We Miss About Missing Values" explores the often overlooked assumptions embedded in the data we observe, particularly focusing on how missing values can influence analysis and interpretation. It delves into the hidden biases and methodological implications that arise when data is incomplete, urging readers to consider these factors when working with real-world datasets.

By David Conneely
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
Towards Data Science
Oct 22

Same Answer, Different Reason: What a Reasoning Model Says When It Follows a Planted Hint

The article examines how a small reasoning model responds when presented with incorrect answers to 200 exam questions. By inserting wrong answers and observing the model’s reasoning, the author explores whether the model’s justification aligns with the planted hint or diverges. The study highlights the model’s tendency to follow misleading cues and the implications for evaluating its reasoning process.

By Utkarsh Mangal