Class Bm25Index

Namespace

Mythosia.VectorDb.InMemory

Assembly

Mythosia.VectorDb.InMemory.dll

In-memory BM25 index for keyword-based document search. Uses Bm25Tokenizer for text tokenization. Thread-safe for concurrent reads and writes.

public class Bm25Index : IDisposable

Inheritance

object

Bm25Index

Implements

IDisposable

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Constructors

Bm25Index()

public Bm25Index()

Properties

DocumentCount

Returns the number of indexed documents.

public int DocumentCount { get; }

Property Value

int

Methods

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

public void Dispose()

Index(string, string)

Indexes a document. If a document with the same ID exists, it is replaced.

public void Index(string id, string text)

Parameters

id string

Document identifier.

text string

Document text content.

Remove(string)

Removes a document from the index.

public void Remove(string id)

Parameters

id string

Document identifier to remove.

Search(string, int)

Searches the index using BM25 scoring.

public IReadOnlyList<Bm25Index.Bm25Result> Search(string query, int topK)

Parameters

query string

The search query text.

topK int

Maximum number of results to return.

Returns

IReadOnlyList<Bm25Index.Bm25Result>

BM25 results sorted by score descending.