1. Top 1000 phrases that customers use to buy images (market research) (2020). https://www.microstockgroup.com/general-stock-discussion/top-phrases-that-customers-use-to-buy-images-(market-research)
2. Ajao, O., Hong, J., Liu, W.: A survey of location inference techniques on twitter. J. Inf. Sci. 41(6), 855–864 (2015)
3. Beliga, S., Meštrović, A., Martinčić-Ipšić, S.: An overview of graph-based keyword extraction methods and approaches. J. Inf. Organ. Sci. 39(1), 1–20 (2015)
4. Bennani-Smires, K., Musat, C., Hossmann, A., Baeriswyl, M., Jaggi, M.: Simple unsupervised keyphrase extraction using sentence embeddings. arXiv preprint arXiv:1801.04470 (2018)
5. Bromley, J., Guyon, I., LeCun, Y., Säckinger, E., Shah, R.: Signature verification using a “siamese” time delay neural network. In: Advances in Neural Information Processing Systems 6, pp. 737–744 (1993)