Abstract: Systems and methods method for performing captioning for image or video data are described herein. The method can include receiving unlabeled multimedia data, and outputting, from a machine learning model, one or more captions for the multimedia data. Training the machine learning model to create these outputs can include inputting a subset of video frames and a first utterance into the machine learning model, using the machine learning model to predict a predicted utterance based on the subset of video frames and the first utterance, and updating one or more parameters of the machine learning model based on a loss function that compares the predicted utterance with the second utterance.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing a network input using a computer vision neural network with learned tokenization.

Abstract: Example embodiments according to aspects of the present disclosure provide an example computer-implemented method for multimodal data processing with improved cross-modal attention. The example method includes inputting a multimodal sequence to an example machine-learned model. The example model includes a first modal processing stream receiving a first modal portion of the multimodal sequence and a second modal processing stream receiving a second modal portion of the multimodal sequence. The example model includes fusing the first modal processing stream and the second modal processing stream across one or more fusion layers of the machine-learned model through a plurality of cross-modal context encodings. The example method includes outputting an inference based at least in part on the plurality of cross-modal context encodings.

Abstract: A computer-implemented method for classifying video data with improved accuracy includes obtaining, by a computing system comprising one or more computing devices, video data comprising a plurality of video frames; extracting, by the computing system, a plurality of video tokens from the video data, the plurality of video tokens comprising a representation of spatiotemporal information in the video data; providing, by the computing system, the plurality of video tokens as input to a video understanding model, the video understanding model comprising a video transformer encoder model; and receiving, by the computing system, a classification output from the video understanding model.