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Paper · 2004.14914 · EMNLP · 2020

Tired of Topic Models? Clusters of Pretrained Word Embeddings Make for Fast and Good Topics too!

Sabrina Mielke, Suzanna Sia, Ayush Dalmia

arXiv · PDF · Open in the Atlas

Code that ran

We lifted 2 functions out of this paper's own repositories and ran 2 of them in a sandbox. "Ran" means the function executed on a synthesized input and returned a value. It is not a reproduction of the paper's results.

RepositoryRoleRan
adalmia96/Cluster-Analysis — 2 of 2
FunctionStatusWhere it lives
Agglo_model Ran adalmia96/Cluster-Analysis/code/clustering.py
pointer only (licence: NONE) · get_code("7200461c5e224001")
find_words_for_cluster Ran adalmia96/Cluster-Analysis/code/clustering.py
pointer only (licence: NONE) · get_code("9de0b7bf06d142cf")

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Abstract

Topic models are a useful analysis tool to uncover the underlying themes within document collections. The dominant approach is to use probabilistic topic models that posit a generative story, but in this paper we propose an alternative way to obtain topics: clustering pretrained word embeddings while incorporating document information for weighted clustering and reranking top words. We provide benchmarks for the combination of different word embeddings and clustering algorithms, and analyse their performance under dimensionality reduction with PCA. The best performing combination for our approach performs as well as classical topic models, but with lower runtime and computational complexity.

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