Aray Karjauv

Research Associate in Machine Learning at Technical University of Berlin

Aray Karjauv Aray's Blog About me

Posts

  • What Does a Vision Model See Without Labels?

    Foundation models trained without explicit labels can learn remarkably rich representations, but the same lack of supervision that makes this possible also makes them harder to interpret and validate. Without annotations to tell us what the model has learned, where can we look for clues? Convolutional networks and vision transformers offer one in their activations. These activations can be turned into heatmaps that show where the model responds most strongly, without extra labels or gradients. The catch is that these maps are often coarse. In this blog post, we explore how to extract spatial heatmaps from these activations and how they can be refined.

  • Hands-on Guide to Multi-Language Speech Recognition and Speaker diarization

    Multi-Language speech recognition and speaker diarization are two important tasks in the field of audio processing. Speech recognition can be defined as the process of converting spoken language into written text, while speaker diarization involves segmenting an audio recording and assigning each segment to a particular speaker. These techniques are used in a variety of applications, including podcasts and conference transcription.

    In this blog post, you will learn how to build a pipeline for multi-language speech recognition and speaker diarization using existing libraries.

  • Turning StyleGAN into a latent feature extractor

    While Generative Adversarial Networks (GANs) are primarily known for their ability to generate high-quality synthetic images, their main task is to learn a latent feature representation of real data. In addition, recent improvements to the original GAN allow it to learn a disentangled latent representation, enabling us to obtain semantically meaningful embeddings.

    This property could possibly allow GANs to be used as high-level feature extractors. However, the problem is that the original GAN architecture is not invertible or, in other words, it is impossible to project real images into the latent space.

    This article addresses this issue and attempts to answer whether GANs can extract meaningful features from real images and if they are suitable for downstream tasks.

  • Bringing Python to the Web

    Have you ever wanted to share your cool Python app with the world without deploying an entire Django server or developing a mobile app just for a small project?

    Good news, you don’t have to! All you need is to add one JavaScript library to your HTML page and it will even work on mobile devices, allowing you to mix JS with Python so you can take advantage of both worlds.

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