Location

Hilton Waikoloa Village, Hawaii

Event Website

http://hicss.hawaii.edu/

Start Date

1-3-2018

End Date

1-6-2018

Description

Topic modeling is often perceived as a relatively new development in information retrieval sciences, and new methods such as Probabilistic Latent Semantic Analysis and Latent Dirichlet Allocation have generated a lot of research. However, attempts to extract topics from unstructured text using Factor Analysis techniques can be found as early as the 1960s. This paper compares the perceived coherence of topics extracted on three different datasets using Factor Analysis and Latent Dirichlet Allocation. To perform such a comparison a new extrinsic evaluation method is proposed. Results suggest that Factor Analysis can produce topics perceived by human coders as more coherent than Latent Dirichlet Allocation and warrant a revisit of a topic extraction method developed more than fifty-five years ago, yet forgotten.

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Jan 3rd, 12:00 AM Jan 6th, 12:00 AM

Comparison of Latent Dirichlet Modeling and Factor Analysis for Topic Extraction: A Lesson of History

Hilton Waikoloa Village, Hawaii

Topic modeling is often perceived as a relatively new development in information retrieval sciences, and new methods such as Probabilistic Latent Semantic Analysis and Latent Dirichlet Allocation have generated a lot of research. However, attempts to extract topics from unstructured text using Factor Analysis techniques can be found as early as the 1960s. This paper compares the perceived coherence of topics extracted on three different datasets using Factor Analysis and Latent Dirichlet Allocation. To perform such a comparison a new extrinsic evaluation method is proposed. Results suggest that Factor Analysis can produce topics perceived by human coders as more coherent than Latent Dirichlet Allocation and warrant a revisit of a topic extraction method developed more than fifty-five years ago, yet forgotten.

http://aisel.aisnet.org/hicss-51/cl/text_mining/5