January 2, 2020

336 words 2 mins read

Beyond Word2Vec: Using embeddings to chart out the ebb and flow of tech skills

Beyond Word2Vec: Using embeddings to chart out the ebb and flow of tech skills

Word embeddings such as word2vec have revolutionized language modeling. Maryam Jahanshahi discusses exponential family embeddings, which apply probabilistic embedding models to other data types. Join in to learn how TapRecruit implemented a dynamic embedding model to understand how tech skill sets have changed over three years.

Talk Title Beyond Word2Vec: Using embeddings to chart out the ebb and flow of tech skills
Speakers Maryam Jahanshahi (TapRecruit)
Conference O’Reilly Artificial Intelligence Conference
Conf Tag Put AI to Work
Location New York, New York
Date April 16-18, 2019
URL Talk Page
Slides Talk Slides
Video

Many data scientists are familiar with word embedding models such as word2vec, which capture semantic similarity among words and phrases in a corpus. However, word embeddings are limited in their ability to interrogate a corpus alongside other context or over time. Moreover, word embedding models either need significant amounts of data or tuning through transfer learning of a domain-specific vocabulary that’s unique to most commercial applications. Maryam Jahanshahi discusses exponential family embeddings, which apply probabilistic embedding models to other data types. Developed by Rudolph and Blei, these methods extend the idea of word embeddings to other types of high-dimensional data. Maryam demonstrates how they can be used to conduct advanced topic modeling on datasets that are medium sized, which are specialized enough to require significant modifications of a word2vec model and contain more general data types (including categorical, count, and continuous). Maryam explains how TapRecruit implemented a dynamic embedding model using Tensor Flow and its proprietary corpus of job descriptions. Using both categorical and natural language data associated with jobs, the company charted the development of different skill sets over the last three years. You’ll discover how tech and data science skill sets have developed, grown, and pollinated other types of jobs over time and explore other segmentation analyses TapRecruit performed, including company types or geographies. This talk is for both data science practitioners and data engineers. Rather than describe mathematical underpinnings, it focuses on the evolution of topic modeling systems using NLP.

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