FANN (Fast Artificial Neural Network Library) bindings for Node.js

Last update: Oct 31, 2022

Related tags

Overview

node-fann

node-fann is a FANN bindings for Node.js.

FANN (Fast Artificial Neural Network Library) is a free open source neural network library, which implements multilayer artificial neural networks with support for both fully connected and sparsely connected networks.

Installation

Make sure you have glib2 and pkg-config installed.

These are quite popular tools and should be available in your software repository/ports.
You will need FANN library version >= 2.1.0 (libfann2).
Run npm install fann to install this package.

Example

", net.run([0, 0])); console.log("xor test (1,0) -> ", net.run([1, 0])); console.log("xor test (0,1) -> ", net.run([0, 1])); console.log("xor test (1,1) -> ", net.run([1, 1]));">

var fann = require('fann');
var net = new fann.standard(2,3,1);

var data = [
    [[0, 0], [0]],
    [[0, 1], [1]],
    [[1, 0], [1]],
    [[1, 1], [0]],
];

net.train(data, {error: 0.00001});

console.log("xor test (0,0) -> ", net.run([0, 0]));
console.log("xor test (1,0) -> ", net.run([1, 0]));
console.log("xor test (0,1) -> ", net.run([0, 1]));
console.log("xor test (1,1) -> ", net.run([1, 1]));

Comments

Build issue on MAC OS

Hi there! I've encountered an issue with installing your module. fann lib is installed via macports, and header files placed to /opt/local/include. It looks like that gyp isn't aware of it and reports about error:

$ npm install fann

> [email protected] install /whatever/node_modules/fann
> node-gyp rebuild

  CXX(target) Release/obj.target/fann/src/fann-accs.o
In file included from ../src/fann-accs.cc:7:
In file included from ../src/node-fann.h:5:
../src/node-futil.h:7:10: fatal error: 'doublefann.h' file not found
#include <doublefann.h>
         ^
1 error generated.
make: *** [Release/obj.target/fann/src/fann-accs.o] Error 1
gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/homedir/.nvm/v0.10.21/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:267:23)
gyp ERR! stack     at ChildProcess.EventEmitter.emit (events.js:98:17)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:789:12)
gyp ERR! System Darwin 13.0.0
gyp ERR! command "node" "/homedir/.nvm/v0.10.21/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /whatever/node_modules/fann
gyp ERR! node -v v0.10.21
gyp ERR! node-gyp -v v0.10.10
gyp ERR! not ok
npm ERR! weird error 1
npm ERR! not ok code 0

$ file /opt/local/include/doublefann.h
/opt/local/include/doublefann.h: ASCII c program text

Any ideas how to fix it?

opened by runk 11

Header Include Path Issue
I am receiving the following error after calling $ npm install fann

[email protected] install /Users/tylerpayne/Desktop/Node/node_modules/fann node-gyp rebuild

CXX(target) Release/obj.target/fann/src/fann-accs.o In file included from ../src/fann-accs.cc:7: In file included from ../src/node-fann.h:5: ../src/node-futil.h:7:10: fatal error: 'doublefann.h' file not found

include <doublefann.h>

^

1 error generated. make: *** [Release/obj.target/fann/src/fann-accs.o] Error 1 gyp ERR! build error gyp ERR! stack Error: make failed with exit code: 2 gyp ERR! stack at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:267:23) gyp ERR! stack at ChildProcess.emit (events.js:98:17) gyp ERR! stack at Process.ChildProcess._handle.onexit (child_process.js:810:12) gyp ERR! System Darwin 14.0.0 gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild" gyp ERR! cwd /Users/tylerpayne/Desktop/Node/node_modules/fann gyp ERR! node -v v0.10.32 gyp ERR! node-gyp -v v1.0.1 gyp ERR! not ok

npm ERR! [email protected] install: node-gyp rebuild npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] install script. npm ERR! This is most likely a problem with the fann package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node-gyp rebuild npm ERR! You can get their info via: npm ERR! npm owner ls fann npm ERR! There is likely additional logging output above. npm ERR! System Darwin 14.0.0 npm ERR! command "node" "/usr/local/bin/npm" "install" "--save" "fann" npm ERR! cwd /Users/tylerpayne/Desktop/Node npm ERR! node -v v0.10.32 npm ERR! npm -v 1.4.28 npm ERR! code ELIFECYCLE npm ERR! not ok code 0

I have FANN 2.2.0 and pkg-config and glib2 installed. I think I just need help including /usr/local/include in the GCC header search paths but have had no luck yet.
opened by tylerpayne 4
Segmentation Fault in FANN When File Not Exist

I'm attempting to use fann.load to load a network, but there are times when that network my not exist. For that I've wrapped it in try/catch. Unfortunately, it appears that FANN is throwing a Segmentation Fault when the file doesn't exist, which Node doesn't catch.

Possible fix could be wrapping the fann function to capture the seg fault, and throwing a catchable error.

opened by anubisthejackle 3

node 0.12.2: Module did not self-register.

I'm testing node-fann inside the aooj/fann docker image and it works well with the preinstalled node v0.10.26 and node-fann v1.0.0. But after I've updated node to the latest version 0.12.2 the following error occurred:

module.js:355
  Module._extensions[extension](this, filename);
                               ^
Error: Module did not self-register.
    at Error (native)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Module.require (module.js:365:17)
    at require (module.js:384:17)
    at Object.<anonymous> (/node_modules/fann/index.js:1:80)
    at Module._compile (module.js:460:26)
    at Object.Module._extensions..js (module.js:478:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)

opened by joernroeder 2

Add an "engines" property to warn node 0.11/0.12 users
As we know (#15), this package won’t work on node 0.11 and 0.12.

This small pull request adds an appropriate engines property in package.json to warn people which attempt to install it on these versions of node, saving them some googling after a build failure.

For example, on my machine this produces something like:

$ npm install ~/src/node-fann npm WARN engine [email protected]: wanted: {"node":"<0.11"} (current: {"node":"0.12.2","npm":"2.7.5"}) > [email protected] install /Users/gh/tmp/node_modules/fann > node-gyp rebuild …

This restriction should be removed once the 0.11 support is ready.
opened by hristozov 2
Doesn't work on node 0.11

Just a tracking issue...

Need to support both node 0.10 and 0.11, so we'll have to use https://github.com/rvagg/nan

And bump this library to 1.0.0 while we're at it.

opened by rlidwka 1

Momento on the Network

Having issues getting the load method to work on a serialized network (configuration).

When using the load, I am seeing a nodejs process abort. After investigating, I can bypass the abort by editing the NNet::CreateFromFile method in the fan-create class impl.

Handle<Value> NNet::CreateFromFile(const Arguments &args)
{
    HandleScope scope;
    if (args.Length() != 1 || !args[0]->IsString())
        return VException("usage: new FANN.load(\"filename.nnet\")");

    char name[4096];
    String::Cast(*args[0])->WriteAscii(name, 0, 4096);
    // name[4095] = 0;  <=== comment this out!  

    FANN = fann_create_from_file(name); 

    return Undefined();
}

Beyond this, once the wrapped fann instance is available in Node, i get segment faults when attempting to interact with it:

PID 47970 received SIGSEGV for address: 0x11
0   segfault-handler-native.node        0x0000000100ca4b8b _ZL16segfault_handleriP9__siginfoPv + 191
1   libsystem_c.dylib                   0x00007fff8d92094a _sigtramp + 26
2   node                                0x000000010031e2f7 _ZN2v88internal9Assembler4movqENS0_8RegisterENS0_6HandleINS0_6ObjectEEENS0_9RelocInfo4ModeE + 199
3   fann.node                           0x0000000100caac8d _ZN4NNet3RunERKN2v89ArgumentsE + 283
4   node                                0x0000000100147038 _ZN2v88internalL21Builtin_HandleApiCallENS0_12_GLOBAL__N_116BuiltinArgumentsILNS0_21BuiltinExtraArgumentsE1EEEPNS0_7IsolateE + 456
5   ???                                 0x00002a6a8070618e 0x0 + 46636909748622
6   ???                                 0x00002a6a8078e71e 0x0 + 46636910307102

Has anyone on the author team attempted to read/write a network?

opened by toddpi314 1

NPM Installation error on Debian

npm ERR! npm ERR! Failed at the [email protected] install script. npm ERR! This is most likely a problem with the fann package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node-gyp rebuild || (node-waf configure && node-waf clean && node-w af build)

opened by soulcyon 1
Error on install node-fann on Linux Mint

sudo npm inpm http GET https://registry.npmjs.org/fann npm http 304 https://registry.npmjs.org/fann

[email protected] install /home/mike/projects/node-fann-example/node_modules/fann node-gyp rebuild

gyp: Call to 'pkg-config --atleast-version=2.1.0 fann' returned exit status 1. gyp ERR! configure error gyp ERR! stack Error: gyp failed with exit code: 1 gyp ERR! stack at ChildProcess.onCpExit (/usr/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:337:16) gyp ERR! stack at ChildProcess.EventEmitter.emit (events.js:98:17) gyp ERR! stack at Process.ChildProcess._handle.onexit (child_process.js:797:12) gyp ERR! System Linux 3.11.0-12-generic gyp ERR! command "node" "/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild" gyp ERR! cwd /home/mike/projects/node-fann-example/node_modules/fann gyp ERR! node -v v0.10.26 gyp ERR! node-gyp -v v0.12.2 gyp ERR! not ok npm ERR! [email protected] install: node-gyp rebuild npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] install script. npm ERR! This is most likely a problem with the fann package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node-gyp rebuild npm ERR! You can get their info via: npm ERR! npm owner ls fann npm ERR! There is likely additional logging output above.

npm ERR! System Linux 3.11.0-12-generic npm ERR! command "/usr/bin/node" "/usr/bin/npm" "i" npm ERR! cwd /home/mike/projects/node-fann-example npm ERR! node -v v0.10.26 npm ERR! npm -v 1.4.3 npm ERR! code ELIFECYCLE npm ERR! npm ERR! Additional logging details can be found in: npm ERR! /home/mike/projects/node-fann-example/npm-debug.log npm ERR! not ok code 0

opened by MikeBazhenov 0
Installing on MAC (10.7)

I got the following error - /bin/sh: pkg-config: command not found

Needed to install glib2 from mac ports and pkg-config from http://www.freedesktop.org/wiki/Software/pkg-config/

Just a heads up.

opened by silentrob 0
can't install - log attached

272 verbose stack Error: [email protected] install: node-gyp rebuild 272 verbose stack Exit status 1 272 verbose stack at EventEmitter. (/usr/local/lib/node_modules/npm/lib/utils/lifecycle.js:255:16) 272 verbose stack at emitTwo (events.js:106:13) 272 verbose stack at EventEmitter.emit (events.js:191:7) 272 verbose stack at ChildProcess. (/usr/local/lib/node_modules/npm/lib/utils/spawn.js:40:14) 272 verbose stack at emitTwo (events.js:106:13) 272 verbose stack at ChildProcess.emit (events.js:191:7) 272 verbose stack at maybeClose (internal/child_process.js:877:16) 272 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5) 273 verbose pkgid [email protected] 274 verbose cwd /Users/drowne/projects/nn_mastering 275 error Darwin 15.6.0 276 error argv "/usr/local/Cellar/node/6.6.0/bin/node" "/usr/local/bin/npm" "install" "fann" 277 error node v6.6.0 278 error npm v3.10.7 279 error code ELIFECYCLE 280 error [email protected] install: node-gyp rebuild 280 error Exit status 1 281 error Failed at the [email protected] install script 'node-gyp rebuild'. 281 error Make sure you have the latest version of node.js and npm installed. 281 error If you do, this is most likely a problem with the fann package, 281 error not with npm itself. 281 error Tell the author that this fails on your system: 281 error node-gyp rebuild 281 error You can get information on how to open an issue for this project with: 281 error npm bugs fann 281 error Or if that isn't available, you can get their info via: 281 error npm owner ls fann 281 error There is likely additional logging output above. 282 verbose exit [ 1, true ]

opened by drowne 3
Failed at the [email protected] install script 'node-gyp rebuild'

Hi, i cant install node-fann

make: Entering directory '/home/yyy/xxx/node_modules/fann/build' CXX(target) Release/obj.target/fann/src/fann-accs.o In file included from ../src/node-futil.h:8:0, from ../src/node-fann.h:5, from ../src/fann-accs.cc:7: ../../nan/nan.h:261:25: error: redefinition of 'template v8::Local _NanEnsureLocal(v8::Local)' NAN_INLINE v8::Local _NanEnsureLocal(v8::Local val) { ^ ../../nan/nan.h:256:25: note: 'template v8::Local _NanEnsureLocal(v8::Handle)' previously declared here NAN_INLINE v8::Local _NanEnsureLocal(v8::Handle val) { ^ ../../nan/nan.h:473:20: error: variable or field 'NanAddGCEpilogueCallback' declared void v8::Isolate::GCEpilogueCallback callback ^

opened by atway 2
Error when sudo npm install fann

Hi,

I try to install this package but I get this error, I already have installed glib2 and pkg-config ///////////////////////////////////////////////////////////////////////////////////////////////////// /

[email protected] install /home/saman/node_modules/fann node-gyp rebuild

gyp: Call to 'pkg-config --atleast-version=2.1.0 fann' returned exit status 1 while in binding.gyp. while trying to load binding.gyp gyp ERR! configure error gyp ERR! stack Error: gyp failed with exit code: 1 gyp ERR! stack at ChildProcess.onCpExit (/usr/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:305:16) gyp ERR! stack at emitTwo (events.js:87:13) gyp ERR! stack at ChildProcess.emit (events.js:172:7) gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12) gyp ERR! System Linux 3.11.0-26-generic gyp ERR! command "/usr/bin/nodejs" "/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild" gyp ERR! cwd /home/saman/node_modules/fann gyp ERR! node -v v4.4.2 gyp ERR! node-gyp -v v3.3.1 gyp ERR! not ok npm ERR! Linux 3.11.0-26-generic npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install" "fann" npm ERR! node v4.4.2 npm ERR! npm v2.15.0 npm ERR! code ELIFECYCLE

npm ERR! [email protected] install: node-gyp rebuild npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] install script 'node-gyp rebuild'. npm ERR! This is most likely a problem with the fann package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node-gyp rebuild npm ERR! You can get information on how to open an issue for this project with: npm ERR! npm bugs fann npm ERR! Or if that isn't available, you can get their info via: npm ERR! npm ERR! npm owner ls fann npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request: npm ERR! /home/saman/FANN/npm-debug.log

/////////////////////////////////////////////////////////////////////////////////////////////////////

Thanks

opened by SamanShafigh 1