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LLM apps

RAG retrieval returns irrelevant or missing context

22 posts from 22 people18d activeSteady, +2 this week

Posts per day

Posts per day22 posts, Aug 28 to Nov 9

The posts behind it

GitHub issuescrewAIInc/crewAI · Kiko0301Nov 6

[BUG] FilePath rejects filenames containing ".."

## Description `FilePath` rejects every path whose string representation contains `..`, including perfectly normal filenames that happen to contain two consecutive dots: `lib/crewai-files/src/crewai_files/core/sources.py:221`: The guard is meant to reject parent-directory...

Redditr/MachineLearning · u/Future_Pace_5290Nov 1

Why do all NN optimizers have weird names? [d]

...would have the same problem if it wasn't so famous. . This has been giving me a lot of headache trying to find relevant stuff....

Redditr/cscareerquestions · u/chrisjeligoOct 30

Got a offer for Backend engineer and technical project manager

...to Ai and other factor, I'm just scared that if I transition into a PM, it would be very difficult to go back to being a backend dev if I don't like working as a Pm. I want to try working as a Pm, but if it doesn't work out, I will just go back to a dev position. . Assuming the...

Stack OverflowStack Overflow [postgresql] · KAREN YAMILETH JIMENEZ GALICIAOct 28

pgvector always returns top-k rows even when the question is unrelated to the documents

...Keeping the query as it is and discarding results with a high distance in the API code.. How should I choose a reasonable cosine distance threshold for this, and which of the two options is better practice?.

1 replies
GitHub issuesopen-webui/open-webui · mike2307Oct 25

perf: external knowledge base retrieval runs serially — per query and per knowledge base — while internal collection search is concurrent

## Before Submitting - [x] I searched open and closed issues and discussions for an existing request. - [x] I checked whether this already exists on the `dev` branch or latest source. - [x] I understand that maintainers want a well-written issue or discussion before any code...

2 replies
Redditr/MachineLearning · u/Prestigious-Tip6030Oct 23

Are we solving LLM memory by remembering more, when the real problem is knowing what to forget?[D]

...remembering what was previously true?. Curious what people here think. Is this mostly a problem with how memory is stored and updated, or with how models reason over conflicting information?. Also, are there any good benchmarks specifically targeting this? Would be interested in...

Redditr/learnmachinelearning · u/assorted-meat-stewOct 17

TypeError: Too few arguments for numpy.complexfloating

...NumPy (>= 1.22.0) to install 2.2.6 which mess up every other packages' installation. How do I fix this?.

GitHub issuesdagster-io/dagster · bandish1304Oct 8

Add RAGAS kind tag icon

### What's the use case? RAGAS is a framework commonly used to evaluate RAG applications. A Dagster pipeline can contain assets dedicated to RAG evaluation, such as generating evaluation results and tracking metrics. Adding a dedicated RAGAS kind tag icon would make these assets...

2 reactions
Redditr/MachineLearning · u/Winter_Mistake_3185Oct 8

Production Grade Retrieval Pipeline That Admits "I Don't Know" [P]

If you're moving a RAG prototype to production, this is the checklist I wish I'd had. - Citations on every answer. - Refusing when the context doesn't support one. - Access control that can't be bypassed. - Ingestion that never blocks a user. Enjoy !!....

GitHub issuesmlflow/mlflow · rottesdrOct 6

[FR] Bulk Tagging for Traces in MLflow UI

...Manually opening every individual trace to assign identical tags creates an operational bottleneck when clustering error patterns or labeling test cohorts for automated judge runs. > #### Why is it currently difficult to achieve this use case? The Traces table does not offer...

GitHub issuesrun-llama/llama_index · JDeunOct 2

Integration example proposal: typed bounded retrieval over large MCP tool sets

LlamaIndex already provides MCP ToolSpec/agent tooling, so I am not proposing another agent runtime or a replacement for MCP integration. I maintain SchemaRouter, which retrieves a query-dependent typed capability/field shortlist from large heterogeneous catalogs before...

Redditr/RAG · u/MidnightSlight8398Oct 1

simpel RAG problem..

...many more cases. now using this que we will get zero retrieval chunks bcz of words.. now how can we solve this problem?.

Redditr/RAG · u/plushPlushytutSep 28

How Do You Extract Technical Terms Before Retrieval in RAG?

...+ lexical search → reranking → relevant terms → LLM translation . But i have a problem:. How do I identify the technical terms within each query/paragraph so I can retrieve the right glossary entries in the first place? . any help would be appreciated.

GitHub issuesmicrosoft/semantic-kernel · VANDRANKISep 26

Python: text_chunker's was_split flag can never be True, so every separator tier always runs (dead early-exit)

## What happens `text_chunker.py`'s `was_split` / `input_was_split` flag, used to short-circuit the separator-tier loop once a good split has been found, can never actually become `True`. It is initialized to `False` in every function that returns it, and is only ever combined...

1 replies
Redditr/RAG · u/Downtown_Grab_2704Sep 26

Learn RAG with AI

Hi guys 👋, I'm looking to dive into RAG using AI tools like NotebookLM or Gemini. YouTube tutorials feel too drawn out, and ChatGPT/Gemini prompts have been a bit brief. Any advice or suggestions for learning resources would be amazing! 🙏💡 #RAG #AI.

Redditr/RAG · u/S4samjainSep 24

I tried three different retrieval strategies for RAG - chunking, reranking, and graph-based retrieval. Results were mixed.

...between entities across documents. Promising for multi-hop questions, but it struggled with documents that don't have clean entity structure, and setup complexity was much higher than the other two methods for the payoff it gave.. None of these felt like a silver bullet on their...

GitHub issuesopen-webui/open-webui · djlongySep 23

issue: knowledge-base chunking splits Markdown tables mid-row and drops the header from every chunk after the first

### Before Submitting - [x] I searched open and closed issues and discussions for an existing report. - [ ] I reproduced this bug on the latest release AND on the current `dev` branch. Reproduced on v0.11.4; the splitter code is the same on `dev` (24c01bd) and the patch below is...

2 replies
Redditr/RAG · u/JhaDeveshSep 23

Why Naive RAG Fails in Production Healthcare: A Deep Dive into Parent-Child Chunking, Cross-Encoders & Clinical Evaluation

...& Uncalibrated Evaluation The Failure: Relying on manual spot-checks or ROUGE/BLEU fails to separate retrieval precision failures from generative hallucinations.. Production Fix: Deterministic LLM-as-a-Judge scoring pipeline running at temperature=0 across 3 core metrics:...

DEVDEV #aws · aws_sa_sgSep 11

Why Your Enterprise RAG Pipeline Is Failing Before the First Query Runs

Most teams building Retrieval-Augmented Generation (RAG) systems invest their engineering effort in two places: the LLM and the retrieval layer. They tune prompts, experiment with embedding models, compare vector databases, and benchmark retrieval precision. When the system...

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Companies and products named

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About this problem

Evidence

22 posts from 22 people in 13 places, about 2 a week over 65 days. Mostly on r/RAG, Hacker News comments, r/MachineLearning. Tools named alongside: YouTube, pgvector, Kubernetes, Docker.

Frustration Frustration 0 of 3· Seen on Reddit, GitHub issues, Hacker News, DEV, Stack Overflow

How it was grouped

Posts that state a pain and match the "rag-retrieval" rule. First post Sep 3, 2026, latest Nov 6, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

The same problem elsewhere

RAG on GitHub returns irrelevant or missing context

10 posts from 8 people on GitHub issues, Reddit.

RAG on LangChain returns irrelevant or missing context

8 posts from 7 people on Reddit, GitHub issues, Stack Overflow.

RAG on LlamaIndex returns irrelevant or missing context

5 posts from 5 people on GitHub issues.

RAG on Anthropic returns irrelevant or missing context

5 posts from 5 people on GitHub issues, Reddit.

RAG on Claude returns irrelevant or missing context

4 posts from 4 people on GitHub issues, Reddit.

RAG on Chroma returns irrelevant or missing context

3 posts from 3 people on GitHub issues.

RAG on vLLM returns irrelevant or missing context

3 posts from 3 people on GitHub issues.

RAG on OpenAI returns irrelevant or missing context

3 posts from 3 people on GitHub issues.

RAG on PyTorch returns irrelevant or missing context

3 posts from 3 people on GitHub issues, Mastodon.

RAG on Llama returns irrelevant or missing context

3 posts from 2 people on Stack Overflow, Reddit.

RAG on Qdrant returns irrelevant or missing context

3 posts from 2 people on GitHub issues.

RAG on SQL Server returns irrelevant or missing context

2 posts from 2 people on Reddit. Unverified.

History

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Oct 2, 2026

First seen with 7 posts.

Sep 25, 2026