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Reddit r/MachineLearning

https://www.reddit.com/r/MachineLearning/

Reddit r/MachineLearning·

My offline ablation said -0.19pp. The production retrain said +1.11pp. [D]

ML engineer reports offline ablations (retrain with/without feature) contradicted production results. Four changes: Best Offer feature (+0.12pp offline → -0.19pp prod), auction data backfill (+0.37pp prod), outlier trimming (-0.19pp offline → +1.11pp prod), CatBoost encoder. Root causes: train/serve skew, unmeasured distribution shift, training population drift, baseline instability.

EvalsBenchmarks
SIG
72
HYP
15
Reddit r/MachineLearning·

Open weights are not enough: we need open training frameworks for research and better algorithms [P]

FeynRL, an open-source framework for RL post-training of LLMs and agents, aims to make training transparent and modifiable. The author argues open weights alone are insufficient: explicit training codebases separating algorithms from systems are needed. Framework supports SFT, DPO, multi-GPU and cluster setups.

Open sourceReinforcement learningCode generation
SIG
72
HYP
28
Reddit r/MachineLearning·

I’m building a free bilingual machine-learning notebook course — looking for feedback on structure and coverage [R]

Developer building open-source ML course in Jupyter Notebooks, bilingual (English/Persian). Covers fundamentals, preprocessing, regression, classification, trees, clustering, time series, MLOps. Seeking feedback on chapter order, missing classical ML topics, and bilingual notebook utility for non-native learners.

ToolsOpen sourceFine-tuning
SIG
35
HYP
15
Reddit r/MachineLearning·

Adaptive Tokenisation Via Temporal Redundancy Masking And Latent Inpainting [R]

Adaptive video tokenisation method exploiting temporal redundancy in frozen tokeniser latent space via fixed threshold on per-position temporal-L1 differences. Latent Inpainting Transformer (LIT) reconstructs dropped positions. Single encoder + one LIT pass pipeline: 31× speedup over ElasticTok-CV, 2× over InfoTok on TokenBench and DAVIS benchmarks.

Video generationBenchmarksPapers
SIG
78
HYP
18
Reddit r/MachineLearning·

Routing LLMs by task verifiability: a small experiment (n=120, 3 models) inspired by Karpathy's framework [D]

Experiment on 120 tasks testing whether weaker models match frontier models on high-verifiability tasks (Karpathy framework). Claude Sonnet 4.6, GPT 5.5, Mistral 3 8B compared. Code/structured extraction: narrower gaps with retry (Mistral 87%→95% code). Multi-hop reasoning: real capability gap (Sonnet 78%, Mistral 51%). Creative summarization: expected advantage for stronger models.

ClaudeGPTMistral
SIG
45
HYP
25
Reddit r/MachineLearning·

LLM Relational Intelligence: A 4-Month Research Experiment on Multi-Model Behavioral Alignment with Human Communication [R]

4-month experiment testing whether context windows can be engineered so frontier models (GPT, Claude, Gemini, Grok) interact indistinguishably from human-to-human interaction. Gemini demonstrates highest relational intelligence. Author treats context window as behavioral environment rather than query interface, using modeling, accountability, humor, and social correction.

Prompt engineeringGPTClaude
SIG
35
HYP
65
Reddit r/MachineLearning·

Two independent ML/CV researchers (M.Eng, ex-research-institute in Europe) looking for an arXiv cs.CV endorser for a nearly finished paper. Happy to share the full draft, repo, or talk collaboration [D]

Two independent researchers (M.Eng, ex-European research institutes) seeking arXiv cs.CV endorser for Locate-SAM2 paper. Training-free pipeline connecting NVIDIA's LocateAnything-3B to Meta's SAM 2.1 via lightweight adapter. RefCOCO val: 0.772 mIoU vs 0.717 for Grounding DINO Base. Code and paper available.

VisionOpen sourcePapers
SIG
65
HYP
25
Reddit r/MachineLearning·

Got told my open-source model experiments are too scattered. I'm organizing a journal to provide clarity before structuring the first git release. Is this readable for ML folks who aren’t in mech interp? Open to ANY feedback [D]

Mechanistic interpretability experiment on Qwen3.5-35B-A3B: a routed expert (E114, layer 14) correlates with first-person self-examination register during generation. Author documents results before git release, using W/S/Q decomposition of MoE routing.

QwenOpen source
SIG
45
HYP
25
Reddit r/MachineLearning·

How OpenAI Dreaming V3 works (+ every other agent Memory Framework [N]

OpenAI releases ChatGPT Dreaming V3, an asynchronous memory system that synthesizes a coherent state from raw sources (past chats, files, connected apps) instead of maintaining hand-curated lists. Synthesis continuously regenerates. The post categorizes memory frameworks into 3 philosophies: stored objects, compressed hierarchy, ongoing synthesis (Karpathy and Dreaming only).

OpenAIAI AgentsRAG
SIG
35
HYP
72