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| Content Provider | ACM Digital Library |
|---|---|
| Author | Feng, Andy Grbovic, Mihajlo Ordentlich, Erik Yang, Lee Owens, Gavin Djuric, Nemanja Radosavljevic, Vladan Cnudde, Peter |
| Abstract | Word2vec is a popular family of algorithms for unsupervised training of dense vector representations of words on large text corpuses. The resulting vectors have been shown to capture semantic relationships among their corresponding words, and have shown promise in reducing a number of natural language processing (NLP) tasks to mathematical operations on these vectors. While heretofore applications of word2vec have centered around vocabularies with a few million words, wherein the vocabulary is the set of words for which vectors are simultaneously trained, novel applications are emerging in areas outside of NLP with vocabularies comprising several 100 million words. Existing word2vec training systems are impractical for training such large vocabularies as they either require that the vectors of all vocabulary words be stored in the memory of a single server or suffer unacceptable training latency due to massive network data transfer. In this paper, we present a novel distributed, parallel training system that enables unprecedented practical training of vectors for vocabularies with several 100 million words on a shared cluster of commodity servers, using far less network traffic than the existing solutions. We evaluate the proposed system on a benchmark data set, showing that the quality of vectors does not degrade relative to non-distributed training. Finally, for several quarters, the system has been deployed for the purpose of matching queries to ads in Gemini, the sponsored search advertising platform at Yahoo, resulting in significant improvement of business metrics. |
| Starting Page | 1139 |
| Ending Page | 1148 |
| Page Count | 10 |
| File Format | |
| ISBN | 9781450340731 |
| DOI | 10.1145/2983323.2983361 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2016-10-24 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Word2vec Distributed training Distributed systems Hadoop Spark Parameter server Word embeddings |
| Content Type | Text |
| Resource Type | Article |
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