Method GetTopCategories

Namespace

LMKit.TextAnalysis

Assembly

LM-Kit.NET.dll

GetTopCategories(IList<string>, string, int, bool, CancellationToken)

Classifies the specified plain text into up to a specified maximum number of categories.

public List<int> GetTopCategories(IList<string> categories, string content, int maxCategories, bool normalize = true, CancellationToken cancellationToken = default)

Parameters

categories IList<string>

A list of predefined category names.

content string

The plain text to be classified.

maxCategories int

The maximum number of top categories to return.

normalize bool

Optional. Specifies whether the input parameters should be normalized. The default is true.

cancellationToken CancellationToken

Optional. A CancellationToken to cancel the operation if needed.

Returns

List<int>

A list of indices representing the top categories for the given text. The indices correspond to positions in the input categories list.

Examples

// Synchronous usage:
var categories = new List<string> { "finance", "travel", "entertainment", "politics", "technology" };
string text = "The government unveiled a new technology policy impacting the finance sector.";

// Returns the top 3 categories:
IList<int> topCategories = categorization.GetTopCategories(categories, text, 3);

Console.WriteLine("Top categories:");
foreach (var index in topCategories)
{
    Console.WriteLine(categories[index]);
}

Exceptions

OperationCanceledException

Thrown if the operation is canceled via the cancellationToken.

GetTopCategories(IList<string>, Attachment, int, bool, CancellationToken)

Classifies the content provided as an attachment into up to a specified maximum number of categories. The attachment can contain either plain text or image data. If the attachment is an image requiring vision processing, the underlying language model must support vision input.

public List<int> GetTopCategories(IList<string> categories, Attachment content, int maxCategories, bool normalize = true, CancellationToken cancellationToken = default)

Parameters

categories IList<string>

A list of predefined category names.

content Attachment

The attachment to be classified, representing either plain text or image content.

maxCategories int

The maximum number of top categories to return.

normalize bool

Optional. Specifies whether the input parameters should be normalized. The default is true.

cancellationToken CancellationToken

Optional. A CancellationToken to cancel the operation if needed.

Returns

List<int>

A list of indices representing the top categories for the given attachment. The indices correspond to positions in the input categories list.

Exceptions

InvalidModelException

Thrown when the attachment is an image that requires vision input but the underlying language model does not support vision.