What is the I-JEPA approach and how does it differ from other self-supervised learning methods in computer vision? The I-JEPA approach is a non-generative approach for self-supervised learning from images that aims to learn highly semantic image representations without relying on hand-crafted data-augmentations. The idea behind I-JEPA is to predict…

can you manipulate a simple dataset, use it to train a MLM, don’t use pre-trained mode, I just want to learn how it will be coded.

This code randomly selects a percentage of tokens to mask, replaces them with [MASK], and then generates a masked word activity matrix using a learned feature creation matrix. …

Me: “The query Q represents the feature of interest and the matrix K represents the collection of masks. “ can you explain it with an example? PDF: Certainly! Let’s say we have a sentence “The cat sat on the mat.” and we want to use a Transformer model to predict…

….. I am confused: A and B is same victor, but ChatGPT said it is not similar… how does the dot product represent the similarity? The dot product is a mathematical operation that can be used to measure the similarity between two vectors. In the context of attention mechanisms, the…

Certainly! Let’s consider a simple example to explain how the Transformer architecture works. Suppose we have a sentence: “I love pizza.” 1. Tokenization: The first step is to tokenize the input sentence into individual words or subwords. In this case, the sentence might be tokenized into [“I”, “love”, “pizza”]. 2…

We adapt this method from interactive segmentation [109, 70], although unlike interactive segmentation whose aim is to eventually predict a valid mask after enough user input, our aim is to always predict a valid mask for any prompt even when the prompt is ambiguous. — Zero-shot transfer. Intuitively, our pre-training task en- dows the model with the ability to respond appropriately to any prompt at inference time, and thus downstream tasks can be solved by engineering appropriate prompts. For ex- ample, if one has a bounding box detector for cats, cat in- stance segmentation can be solved by providing the detec- tor’s box output as a prompt to our model. In general, a wide array of practical segmentation tasks can be cast as prompt- ing.

First, let’s assuming we have a book, count follow sentences in a book: Check whether the battery ran down please. Check whether the program ran please. Totally, they appeared for 100 times; the first line appeared for 40 times and second for 60 times. Our goal here is to predict next word after word “ran”. First Order Sequence: only look at “ran” , so next word could be “down” (.4 probability) and “please”(.6 probability).

Surprisingly, we find that a simple design satisfies all three constraints: a powerful image encoder computes an image embedding, a prompt encoder embeds prompts, and then the two infor- mation sources are combined in a lightweight mask decoder that predicts segmentation masks. It needs to use a powerful image encoder…