Building an interactive ML dashboard in Panel | by Sophia Yang, Ph.D. | Jun, 2023

Sophia Yang, Ph.D.

Towards Data Science

By Andrew Huang, Sophia Yang, Philipp Rudiger

Demo of the image classification app.

HoloViz Panel is a versatile Python library that empowers developers and data scientists to build interactive visualizations with ease. Whether you’re working on machine learning projects, developing web applications, or designing data dashboards, Panel provides a powerful set of tools and features to enhance your data exploration and presentation capabilities. In this blog post, we will delve into the exciting features of HoloViz Panel, explore how it can revolutionize your data visualization workflows, and demonstrate how you can make an app like this using about 100 lines of code.

Try out the app and check out the code:

ML/AI has become an integral part of data analysis and decision-making processes. With Panel, you can seamlessly integrate ML models and results into your visualizations. In this blog post, we will explore how to make an image classification task using the OpenAI CLIP model.

CLIP is pretrained on a large dataset of image-text pairs, enabling it to understand images and corresponding textual descriptions and work for various downstream tasks such as image classification.

There are two ML-related functions we used to perform the image classification task. The first function load_processor_model enables us to load a pre-trained CLIP model from Hugging Face. The second function get_similarity_score calculates the degree of similarity between the image and a provided list of class labels.

def load_processor_model(
processor_name: str, model_name: str
) -> Tuple[CLIPProcessor, CLIPModel]:
processor = CLIPProcessor.from_pretrained(processor_name)
model = CLIPModel.from_pretrained(model_name)
return processor, model

def get_similarity_scores(class_items: List[str], image: Image) -> List[float]:
processor, model = load_processor_model(
"openai/clip-vit-base-patch32", "openai/clip-vit-base-patch32"
inputs = processor(…

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