RunMat
  • Pricing
RunMat
GitHub
GitHub
DownloadSign InTry in Browser
DesktopRuntimeServer
RunMat

Run math blazing fast

GitHubX (Twitter)LinkedIn

Company

  • About
  • Pricing
  • Contact

Explore

  • RunMat for academia
  • RunMat vs MATLAB Online
  • Benchmarks

Get product updates and release notes from the RunMat team.

© 2026 Dystr · Made withfor the scientific community.

RunMat™ is a registered trademark of Dystr, Inc. MATLAB® is a registered trademark of The MathWorks, Inc. RunMat is not affiliated with, endorsed by, or sponsored by The MathWorks, Inc.

LicensePrivacy
/
See all docs
Builtin Reference
    • addDependencyDetails
    • addEntityDetails
    • addLemmaDetails
    • addPartOfSpeechDetails
    • addSentenceDetails
    • addTypeDetails
    • bagOfNgrams
    • bagOfWords
    • cosineSimilarity
    • doc2sequence
    • encode
    • extractFileText
    • extractHTMLText
    • fastTextWordEmbedding
    • findElement
    • getAttribute
    • htmlTree
    • ind2word
    • isVocabularyWord
    • normalizeWords
    • readWordEmbedding
    • removeLongWords
    • removeShortWords
    • removeStopWords
    • removeWords
    • stopWords
    • tokenDetails
    • tokenizedDocument
    • trainWordEmbedding
    • vaderSentimentScores
    • vec2word
    • word2ind
    • word2vec
    • wordEncoding
    • writeWordEmbedding

addEntityDetails — Add named-entity tags to tokenized documents.

addEntityDetails(documents) adds named-entity metadata to a RunMat tokenizedDocument compatibility object. Use tokenDetails to view the resulting Entity column.

Syntax

updatedDocuments = addEntityDetails(documents)
updatedDocuments = addEntityDetails(documents,Name,Value)

Inputs

NameTypeRequiredDefaultDescription
documentsAnyYes—tokenizedDocument object.
NameValueAnyVariadic—Name-value options: RetokenizeMethod, DiscardKnownValues, Model.

Returns

NameTypeDescription
updatedDocumentsAnyUpdated tokenized document object.

Errors

IdentifierWhenMessage
RunMat:addEntityDetails:InvalidInputInput is not a supported tokenizedDocument object or option form.addEntityDetails: invalid input

How addEntityDetails works

  • documents must be a RunMat tokenizedDocument object.
  • addEntityDetails(documents, Name, Value) supports RetokenizeMethod, DiscardKnownValues, and Model name-value pairs.
  • RetokenizeMethod defaults to "entity", which merges simple adjacent entity tokens such as multiword locations. Use "none" to keep existing tokens.
  • DiscardKnownValues defaults to false, so existing known entity details are preserved while missing or empty entries are filled.
  • DiscardKnownValues, true recomputes every stored tag and ignores malformed stored entity details.
  • Model, "auto" selects RunMat's built-in deterministic compatibility tagger. Custom hmmEntityModel inputs remain tracked as broader Text Analytics model infrastructure.
  • addEntityDetails ensures sentence and part-of-speech details exist first, then updates part-of-speech details for recognized entities to "proper-noun".
  • RunMat tags English and German tokens with deterministic compatibility rules for person, location, organization, other, and non-entity.
  • If an existing tokenizedDocument object already carries Japanese or Korean language metadata, RunMat accepts the language and uses conservative token-class-aware fallback tags. Public Japanese/Korean tokenizedDocument construction and MeCab-backed entity models remain tracked.
  • Exact MathWorks statistical entity-model parity remains tracked as broader Text Analytics work.

GPU memory and residency

addEntityDetails updates host tokenizedDocument metadata and has no provider kernel.

Examples

Add Entity Details

documents = tokenizedDocument("Mary uses MATLAB at MathWorks.");
documents = addEntityDetails(documents);
tdetails = tokenDetails(documents)

Expected output:

`tdetails.Entity` contains tags such as `"person"`, `"organization"`, `"other"`, and `"non-entity"`.

Keep Existing Tokens

documents = addEntityDetails(documents, "RetokenizeMethod", "none")

Expected output:

`documents` receives entity details without the entity retokenization pass.

Recompute Entity Details

documents = addEntityDetails(documents, "DiscardKnownValues", true)

Expected output:

`documents` has refreshed entity details.

Using addEntityDetails with coding agents

Open a RunMat example with live inputs, then ask the agent to explain how addEntityDetails changes the result.

Run a small addEntityDetails example, explain the result, then change one input and compare the output.

FAQ

Does addEntityDetails use a full entity model?⌄

No. This compatibility slice uses deterministic English and German rules and records exact MathWorks model parity as remaining Text Analytics work.

Does addEntityDetails execute on the GPU?⌄

No. It updates host tokenizedDocument metadata.

Related Strings functions

Text Analytics

addDependencyDetails · addLemmaDetails · addPartOfSpeechDetails · addSentenceDetails · addTypeDetails · bagOfNgrams · bagOfWords · cosineSimilarity · doc2sequence · encode · extractFileText · extractHTMLText · fastTextWordEmbedding · findElement · getAttribute · htmlTree · ind2word · isVocabularyWord · normalizeWords · readWordEmbedding · removeLongWords · removeShortWords · removeStopWords · removeWords · stopWords · tokenDetails · tokenizedDocument · trainWordEmbedding · vaderSentimentScores · vec2word · word2ind · word2vec · wordEncoding · writeWordEmbedding

Transform

append · deblank · erase · eraseBetween · erasePunctuation · eraseURLs · extractAfter · extractBefore · extractBetween · insertAfter · insertBefore · join · lower · pad · replace · replaceBetween · reverse · split · splitlines · strcat · strip · strjoin · strjust · strrep · strsplit · strtrim · upper

Core

blanks · char · compose · convertCharsToStrings · convertContainedStringsToChars · convertStringsToChars · genvarname · int2str · isletter · isspace · isStringScalar · isstrprop · mat2str · native2unicode · newline · num2str · sprintf · sscanf · str2double · str2num · strcmp · strcmpi · string · string.empty · strings · strlength · strncmp · strncmpi · strtok · unicode2native

Search

contains · endsWith · matches · startsWith · strfind

Pattern

digitsPattern · lettersPattern · pattern · regexpPattern · textBoundary · wildcardPattern

Regex

regexp · regexpi · regexprep

Open-source implementation

Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how addEntityDetails is executed, line by line, in Rust.

  • View the source for addEntityDetails in Rust on GitHub
  • Learn how the RunMat runtime works
  • Found a bug? Open an issue with a minimal reproduction.

About RunMat

RunMat is an open-source runtime that executes MATLAB-syntax code blazing on any GPU. It is licensed under the Apache 2.0 license.

  • RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed. Simulations that took hours now take minutes.
  • Start running code in seconds. RunMat runs in the browser, on the desktop, or from the CLI. No license server, no IT ticket.

Getting started · Benchmarks · Pricing

Download RunMat

Download RunMat for full performance, or use RunMat in your browser for zero setup.

Download RunMatOpen Sandbox
On this page
  • Syntax
  • Inputs
  • Returns
  • Errors
  • How addEntityDetails works
  • GPU memory and residency
  • Examples
  • Add Entity Details
  • Keep Existing Tokens
  • Recompute Entity Details
  • Using addEntityDetails with coding agents
  • FAQ
  • Related Strings functions
  • Text Analytics
  • Transform
  • Core
  • Search
  • Pattern
  • Regex
  • Open-source implementation
  • About RunMat