2 min readfrom Machine Learning

How would you model this "strand" clustering problem? [P]

Our take

In tackling the strand clustering problem, the goal is to analyze and group detections from your YOLO model based on their spatial separation. With a maximum of eight groups and three strands each, consider employing clustering algorithms like DBSCAN or hierarchical clustering, which can leverage the detection distances effectively. Additionally, refining your features based on detection box areas can enhance model accuracy. For further insights on optimizing workflows, explore our article, "AI Workflows for Sales Teams," which discusses automating time-consuming tasks for improved productivity.
How would you model this "strand" clustering problem? [P]

In the realm of computer vision, the challenge of accurately clustering detected objects based on separation distance is both intriguing and complex. The scenario presented in the article showcases a user who has successfully trained a YOLO (You Only Look Once) model to detect specific strands in videos. However, the quest to cluster these detections and provide a meaningful output—such as the number of strands in each group from left to right—highlights the ongoing difficulties in bridging detection and classification with effective data analysis. This intersection of challenges is a common theme in machine learning, as seen in related articles like DuckDB Quack: Client/Server Protocol over HTTP for Multi-User Analytics and AI Workflows for Sales Teams: Prospect Research, Lead Qualification, and CRM Updates on Autopilot Using LangGraph, which emphasize the importance of innovative workflows and data management solutions in enhancing productivity.

The user's approach includes a promising start with an XGBoost classification model, achieving around 70% accuracy. However, the mention of Bayes error suggests that the user recognizes inherent limitations in the current model—an acknowledgment that points to a deeper understanding of statistical principles and the complexities of their application. For those engaged in similar computer vision tasks, this represents a critical learning opportunity. It encourages a thorough exploration of how different algorithms, feature engineering, and perhaps even ensemble methods could enhance the predictive power of the model. The challenge of clustering strands based on separation distance requires a nuanced approach that considers the spatial and temporal dimensions of the detected objects, which may not always be captured effectively by traditional classification models.

Moreover, the constraints outlined—such as a maximum of eight groups and three strands per group—further complicate the problem space. These restrictions can influence the choice of modeling technique. For instance, a clustering algorithm that incorporates distance metrics and density-based measures could be advantageous. This could provide a more nuanced understanding of how strands relate to one another within the detection space. The focus on practical outputs, like returning a string format of the detected groups, emphasizes the need for models that are not only accurate but also user-friendly. The aspiration to simplify complex tasks in this domain aligns well with broader trends in AI and machine learning, where user-centered design is becoming increasingly paramount.

As we look toward the future, the questions raised in this scenario resonate across multiple fields that utilize data analysis and machine learning. How can we better integrate detection capabilities with effective clustering algorithms to produce actionable insights? What innovations in model training and evaluation can help mitigate issues like Bayes error and enhance accuracy? These inquiries not only reflect the ongoing evolution of technology but also underscore the necessity for continual learning and adaptation in data science. Collectively, they pave the way for a more sophisticated understanding of complex data interactions, ultimately empowering users to transform their workflows and decision-making processes. As advancements in AI-native technologies continue to emerge, the potential for more intuitive and effective data management solutions remains vast and promising.

How would you model this "strand" clustering problem? [P]

https://preview.redd.it/llqlupnwng4h1.png?width=2188&format=png&auto=webp&s=7fae5860babaffa1c8bfdcb1468b374eb38ac55d

I'm currently building a computer vision application. I've managed to successfully train a YOLO model to detect the object I'm interested in for my videos.

The image above shows some visualisations of the YOLO model outputs for some of the videos. I want to essentially cluster these strands in the image into groups based on their separation distance and return a string telling me the number of strands in each group from left to right (e.g. 1-2-3).

The target value for each column in the image (where each column corresponds to a video) is 1-2-3, 1-2-3-2-3, 1-1-2-3-3-3-3 and don't worry about the fourth column for now 😄.

The rows show the x vs t, y vs t and x vs y vs t for all the detections and the points are sized based on the detection box area.

In the fourth column I have some background object detections which I want to ignore hence why I've also visualised detection box area.

I've managed to train a XGBoost classification model that gives 70ish% accuracy however Bayes error is making me think I should be able to do much better than this.

How would you approach trying to predict these strand clusterings?

Some extra info that might help; there are at max 8 groups and each group can have only at max 3 strands.

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#natural language processing for spreadsheets#generative AI for data analysis#Excel alternatives for data analysis#rows.com#automated anomaly detection#cloud-based spreadsheet applications#strand clustering#computer vision#YOLO model#object detection#detection box area#XGBoost#classification model#Bayes error#cluster groups#videos#visualization#group separation distance#max groups#strands