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Neural Information Processing Systems

We describe an approach for unsupervised learning of a generic, distributed sentence encoder. Using the continuity of text from books, we train an encoder-decoder model that tries to reconstruct the surrounding sentences of an encoded passage. Sentences that share semantic and syntactic properties are thus mapped to similar vector representations. We next introduce a simple vocabulary expansion method to encode words that were not seen as part of training, allowing us to expand our vocabulary to a million words. After training our model, we extract and evaluate our vectors with linear models on 8 tasks: semantic relatedness, paraphrase detection, image-sentence ranking, question-type classification and 4 benchmark sentiment and subjectivity datasets. The end result is an off-the-shelf encoder that can produce highly generic sentence representations that are robust and perform well in practice.


Why AI Companies Are Pivoting to Short-Form Video

TIME - Tech

OpenAI's new short-form video app, Sora, seems to have all the ingredients of a viral hit. Just hours after the app's launch on Tuesday, memes created using its AI video-generation technology were already spreading to other social networks--including, for example, a video of OpenAI CEO Sam Altman rapping from the inside of a toilet bowl. Sora's launch--complete with a TikTok style "for you" page--was something of an about-face for Altman, who had previously described social media feeds as "an example of misaligned AI," whose algorithms "are incredible at getting you to keep scrolling." Altman was quick to distance OpenAI from suggestions that it had caved to the temptation to create what he called an AI-powered "slop feed." He wrote: "The team has put great care and thought into trying to figure out how to make a delightful product that doesn't fall into that trap, and has come up with a number of promising ideas."