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forward–backward algorithm

hidden Markov model inference algorithm which computes the posterior marginals of all hidden state variables given a sequence of observations, making use of dynamic programming to make only 2 passes: one forward, one backward
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forward–backward algorithm

Summary

forward–backward algorithm is an algorithm[1]. It draws 214 Wikipedia views per month (algorithm category, ranking #104 of 337).[2]

Key Facts

  • forward–backward algorithm's instance of is recorded as algorithm[3].
  • forward–backward algorithm's facet of is recorded as hidden Markov model[4].

Body

Designation and Status

forward–backward algorithm's instance of is recorded as algorithm[3].

Why It Matters

forward–backward algorithm draws 214 Wikipedia views per month (algorithm category, ranking #104 of 337).[2] It has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[5] It is known by 5 alternative names across languages and contexts.[6]

Related Entities

Calabozo

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [5] ↑ . Wikidata sitelinks. wikidata.org.
  3. [6] ↑ . Wikidata aliases. wikidata.org.

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). forward–backward algorithm. Retrieved May 3, 2026, from https://4ort.xyz/entity/forward-backward-algorithm
MLA “forward–backward algorithm.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/forward-backward-algorithm.
BibTeX @misc{4ortxyz_forward-backward-algorithm_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{forward–backward algorithm}}, year = {2026}, url = {https://4ort.xyz/entity/forward-backward-algorithm}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): forward–backward algorithm — https://4ort.xyz/entity/forward-backward-algorithm (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 5w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    Instance of → algorithm
    P14541 → 4OscHD
    Facet of → hidden Markov model
    Instance of → —
    + 1 other property edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.