Upgrade to Pro — share decks privately, control downloads, hide ads and more …
Sign up for free

Ensemble Topic Modelling

Avatar for Leland McInnes Leland McInnes
July 12, 2019
Research
510
1

Ensemble Topic Modelling

A short lightning talk on ensemble topic modelling with pLSA using the enstop package.

Avatar for Leland McInnes

Leland McInnes

July 12, 2019

More Decks by Leland McInnes

See All by Leland McInnes
PyNNDescent: Fast Approximate Nearest Neighbors with Numba
Avatar for Leland McInnes lmcinnes
0
1.1k
Word and Document Embeddings
Avatar for Leland McInnes lmcinnes
0
190
Topological Data Analysis
Avatar for Leland McInnes lmcinnes
1
390
Learning Topology: topological methods for unsupervised learning
Avatar for Leland McInnes lmcinnes
2
3.7k
A Guide to Dimension Reduction
Avatar for Leland McInnes lmcinnes
3
1.5k
UMAP: Uniform Manifold Approximation and Projection for Dimension Reduction
Avatar for Leland McInnes lmcinnes
2
2.8k

Other Decks in Research

See All in Research
GLIM とMegaParticles：正規分布近似の限界とタイトカップリング＆パーティクルフィルタの進展 / GLIM and MegaParticles : Progress of the distribution representation in SLAM
Avatar for koide3 koide3
0
1k
PHTalks Bengaluru - SSRF When All Else Fails
Avatar for Debangshu Kundu dk999
0
1.2k
Easy to Guess, Hard to Verify: Lessons from AIMO 3 for Olympiad-Level AI Mathematics
Avatar for corochann corochann
0
140
[SNLP2026] Scaling up Test-Time Compute with Latent Reasoning: A Recurrent Depth Approach
Avatar for 池田航 wataruuuuu
0
350
OWASP AISVS - C7
Avatar for shieLL shiell
2
850
ハードウェア研究で国際トップ会議を目指す！IROS 2027での論文採択を目指して
Avatar for 金田礼人 ayatokanada
7
4.1k
JPA2026_NetworkTutorial_JunKashihara
Avatar for JunKashihara junkashihara
0
240
[WebDB2026]セレンディピティ指向推薦システム再考 ―セレンディピティの原義・類型・発生過程に基づく設計指針―
Avatar for RecSysLab recsyslab
PRO
0
220
2026年6月_副業コンプライアンス調査_業界別リスク度分析_株式会社フクスケ.pdf
Avatar for fkske fkske
0
130
論文読み会 SNLP2026 Tau2-Bench: Evaluating Conversational Agents in a Dual-Control Environment
Avatar for S s_mizuki_nlp
0
320
XDPerf: A High-Performance Traffic Generator Built with WASM and eBPF
Avatar for Takeru Hayasaka takehaya
1
360
SLAMはどこまで解決されたのか？
Avatar for tomonom tomonom
0
1.6k

Featured

See All Featured
The SEO Collaboration Effect
Avatar for Kristina Bergwall kristinabergwall1
1
600
Discover your Explorer Soul
Avatar for Emna emna__ayadi
2
1.3k
Put a Button on it: Removing Barriers to Going Fast.
Avatar for kastner kastner
60
4.6k
Stewardship and Sustainability of Urban and Community Forests
Avatar for Eric Wiseman pwiseman
0
570
Writing Fast Ruby
Avatar for Erik Berlin sferik
630
63k
Utilizing Notion as your number one productivity tool
Avatar for Mfonobong Umondia mfonobong
4
630
Mind Mapping
Avatar for Hélio Medeiros helmedeiros
1
410
New Earth Scene 8
Avatar for Sydney Stone popppiees
4
2.7k
We Analyzed 250 Million AI Search Results: Here's What I Found
Avatar for Josh Blyskal joshbly
2
2.1k
Color Theory Basics | Prateek | Gurzu
Avatar for Gurzu gurzu
1
500
No one is an island. Learnings from fostering a developers community.
Avatar for Antonio thoeni
21
3.9k
Practical Orchestrator
Avatar for Shlomi Noach shlominoach
192
12k

Transcript

  1. Ensemble Topic Modelling Leland McInnes

  2. Model a corpus of documents in terms of underlying “topics”

  3. Topic Modelling as Matrix Factorization

  4. None
  5. None
  6. None
  7. None

  8. LDA and pLSA are probabilistic matrix factorization methods

  9. (Ensembles of) pLSA

  10. Performance?

  11. None

  12. Quality?

  13. None

  14. Instability?

  15. These are hard optimization problems

  16. Topics vary from one run to another

  17. What are the stable topics? Inspired by https://github.com/RaRe-Technologies/gensim/pull/2282

  18. None

  19. Each cluster represents a stable topic

  20. None

  21. • Greater stability • Determines number of topics automatically •

    Embarrassingly parallel computation

  22. Implementation

  23. sklearn API

  24. None

  25. https://github.com/lmcinnes/enstop

  26. pip install enstop