nn

Source

Source kind: github-repository
URL: https://github.com/karpathy/nn
Discovery source: https://github.com/karpathy/nn
License: NOASSERTION
Distribution policy: public-summary-local-archive-only
Public mirror status: summary-only
Content hash: 220ddcf630a4ffbe09119e27d27b6351d9c4b4b5f290ca543fe3ac730d825f13
First seen: 2026-05-15
Last changed: 2026-05-15

Classification

Primary category: Vision / multimodal / captioning
Corpus source note: 2026-05-15-karpathy-public-corpus
Project taxonomy: karpathy-project-taxonomy
Idea map: karpathy-idea-map
Topic hub: karpathy-public-work

Summary

$1] (h ttp s : // t r a v i s - c i . or g / t orc h / nn) N e u r a lN e tw or k P a c ka g e T hi s p a c ka g e p ro v i d es an e a sy an d m o d u l a r w a y t o b u i l d an d t r ain s im pl eorco m pl e x n e u r a l n e tw or k s u s in g$ 1: Modules are the bricks used to build neural networks. Each are themselves neural networks, but can be combined with other networks using containers to create complex neural networks: $1 : ab s t r a c t c l a ss inh er i t e d b y a ll m o d u l es;$ 1: container classes like $1,$ 1 and $1;$ 1: non-linear functions like $1 an d$ 1; $1 : l ik e$ 1, $1,$ 1 and $1;$ 1: layers for manipulating table s like $1,$ 1 and $1;$ 1: $1,$ 1 and $1 convolutions; Criterions compute a grad…

What This Teaches

How earlier vision and captioning systems connect representation learning with language outputs.
Useful historical context for multimodal LLM research and evaluation.

Why It Matters

This matters as part of Karpathy’s broader pattern: compress hard technical systems into readable, inspectable, working artifacts.

Repository Snapshot

Full name: karpathy/nn
Default branch: master
HEAD: 3de925cff92921aafa2bf4a93fcd5395c6322862
Stars at crawl: 37
Forks at crawl: 7
File count: 196
README path: README.md
License path: “
Created: 2015-05-05T21:33:51Z
Updated: 2026-04-26T08:03:12Z
Pushed: 2016-02-05T14:58:20Z

Top-Level Structure

[root]: 125
generic: 39
doc: 31
rocks: 1

File Extension Profile

.lua: 118
.c: 40
.png: 19
.md: 12
.jpg: 2
.txt: 2
.luacheckrc: 1
.rockspec: 1
.yml: 1

Tags / Release-Like Markers

No git tags found in the shallow local clone.

Sample File Tree

.luacheckrc
.travis.yml
Abs.lua
AbsCriterion.lua
Add.lua
AddConstant.lua
BatchNormalization.lua
BCECriterion.lua
CAddTable.lua
CDivTable.lua
ClassNLLCriterion.lua
CMakeLists.txt
CMul.lua
CMulTable.lua
Concat.lua
ConcatTable.lua
Container.lua
CONTRIBUTING.md
Copy.lua
COPYRIGHT.txt
CosineDistance.lua
CosineEmbeddingCriterion.lua
Criterion.lua
CriterionTable.lua
CrossEntropyCriterion.lua
CSubTable.lua
DepthConcat.lua
DistKLDivCriterion.lua
doc/containers.md
doc/convolution.md
doc/criterion.md
doc/image/abs.png
doc/image/exp.png
doc/image/hshrink.png
doc/image/htanh.png
doc/image/lena.jpg
doc/image/lenap.jpg
doc/image/logsigmoid.png
doc/image/logsoftmax.png
doc/image/power.png
doc/image/prelu.png
doc/image/relu.png
doc/image/sigmmoid.png
doc/image/sigmoid.png
doc/image/softmax.png
doc/image/softmin.png
doc/image/softplus.png
doc/image/softsign.png
doc/image/sqrt.png
doc/image/square.png
doc/image/sshrink.png
doc/image/tanh.png
doc/module.md
doc/overview.md
doc/simple.md
doc/table.md
doc/testing.md
doc/training.md
doc/transfer.md
DotProduct.lua
Dropout.lua
ErrorMessages.lua
Euclidean.lua
Exp.lua
FlattenTable.lua
generic/Abs.c
generic/AbsCriterion.c
generic/DistKLDivCriterion.c
generic/HardShrink.c
generic/HardTanh.c
generic/L1Cost.c
generic/LogSigmoid.c
generic/LogSoftMax.c
generic/MarginCriterion.c
generic/Max.c
generic/Min.c
generic/MSECriterion.c
generic/MultiLabelMarginCriterion.c
generic/MultiMarginCriterion.c
generic/PReLU.c

Public Handling Notes

EXTRACTED: This page records public metadata and a source-grounded summary.
INFERRED: Full local preservation, when available, is for private/local use unless a license or explicit source policy makes public redistribution safe.
Do not treat this page as permission to republish unlicensed source text or code wholesale.

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