Self Organizing Maps (DL_SOM)

This function creates self organizing maps used for data clustering

Self-organizing maps (SOM), also known as Kohonen maps, are a type of artificial neural network that can be used for unsupervised learning and data visualization. They are typically used for clustering and dimensionality reduction of complex data sets.

SOMs consist of a two-dimensional grid of nodes or neurons, each of which represents a different feature or attribute of the data. During training, the SOM learns to associate similar data points with adjacent neurons on the grid. This results in a topology-preserving mapping of the input space onto the two-dimensional grid.

SOMs are often used in data visualization applications because they can represent high-dimensional data in a two-dimensional map, making it easier to understand and interpret. They have been used in a variety of fields, including image and speech recognition, text mining, and pattern recognition.

Sample Request

Build an SOM for data clustering

{
    "project_id": 1,
    "parent_id": 7,
    "block_id": 8,
    "function_code": "DL_SOM_I",
    "args": {
    "hyp_params":{
            "x": 10,
            "y": 10,
            "input_len": 14,
            "sigma": 1.0,
            "learning_rate": 0.1,
        }
    }
}

Building a Self Organizing Map

SOM Construction

POST https://autogon.ai/api/v1/engine/start

Request Body

Name	Type	Description
project_id*	int	The id of the current project
block_id*	int	The id of the current block
function_code*	string	The function code for current block
parent_id*	int	The id of the previous block
args*	object	Block arguments
x*	int	x dimension
y*	int	y dimension
input_len*	int	Number of the elements of the vectors in input
learning_rate	float	initial learning rate
sigma	float	Spread of the neighborhood function, needs to be adequate to the dimensions of the map

200 Statemanagement object

{
    "status": "true",
    "message": {
        "id": 8,
        "project": 1,
        "block_id": 8,
        "parent_id": 7,
        "dataset_url": "",
        "x_value_url": "",
        "y_value_url": "",
        "x_train_url": "",
        "y_train_url": "",
        "x_test_url": "",
        "y_test_url": "",
        "output": {}
    }
}

Sample Request

Compile and train the pre-built SOM model, using passed in Hyper Parameters

{
    "project_id": 1,
    "parent_id": 8,
    "block_id": 9,
    "function_code": "DL_SOM_T",
    "args": {
        "model_name": "titanic_model",
        "hyp_params":{
            "num_iterations": 100
        }
    }
}

Training a Sequential Organizing Map

SOM Training

POST https://autogon.ai/api/v1

Request Body

Name	Type	Description
project_id*	int	The id of the current project
hyp_params*	object	hyper parameters for model compilation and training
parent_id*	int	The id of the previous block
block_id*	int	The id of the current block
function_code*		The function code for current block
args*	object	Block arguments
model_name*	String	The name the model would be saved with
num_iterations*	int	number of training iterations

200: OK Statemanagement Object

{
    "status": "true",
    "message": {
        "id": 9,
        "project": 1,
        "block_id": 9,
        "parent_id": 8,
        "dataset_url": "",
        "x_value_url": "",
        "y_value_url": "",
        "x_train_url": "",
        "y_train_url": "",
        "x_test_url": "",
        "y_test_url": "",
        "output": {}
    }
}

Sample Request

Make predictions with the trained SOM model.

{
    "project_id": 1,
    "parent_id": 8,
    "block_id": 9,
    "function_code": "DL_SOM_P",
    "args": {
        "test_data": "",
        "row": 12,
    }
}

Predicting Cluster with an Self Organizing Map

SOM Predict

POST https://autogon.ai/api/v1/engine/start

Request Body

Name	Type	Description
test_data*	String	Input data for prediction
project_id*	int	ID of the current project
block_id*	int	ID of the current block
parent_id*	int	ID of the previous block
function_code*	String	Function code for the current block
args*	object	Block arguments
row	int	row in the dataset to be used

200: OK Statemanagement object

{
    "status": "true",
    "message": {
        "id": 9,
        "project": 1,
        "block_id": 9,
        "parent_id": 8,
        "dataset_url": "",
        "x_value_url": "",
        "y_value_url": "",
        "x_train_url": "",
        "y_train_url": "",
        "x_test_url": "",
        "y_test_url": "",
        "output": {}
    }
}

Python

// Some code

Node