This data set is uploaded as supporting information for the publication entitled:Effect of data preprocessing and machine learning hyperparameters on mass spectrometry imaging modelsFiles are as follows:polymer_microarray_data.mat - MATLAB workspace file containing peak-picked ToF-SIMS data (hyperspectral array) for the polymer microarray sample.nylon_data.mat - MATLAB workspace file containing m/z binned ToF-SIMS data (hyperspectral array) for the semi-synthetic nylon data set, generated from 7 nylon samples.Additional details about the datasets can be found in the published article.If you use this data set in your work, please cite our work as follows:Cite as: Gardner et al.. J. Vac. Sci. Technol. A 41, 000000 (2023); doi: 10.1116/6.0002788

BackgroundThis study proposes machine learning-driven data preparation (MLDP) for optimal data preparation (DP) prior to building prediction models for cancer cohorts.MethodsA collection of well-established DP methods were incorporated for building the DP pipelines for various clinical cohorts prior to machine learning. Evolutionary algorithm principles combined with hyperparameter optimization were employed to iteratively select the best fitting subset of data preparation algorithms for the given dataset. The proposed method was validated for glioma and prostate single center cohorts by 100-fold Monte Carlo (MC) cross-validation scheme with 80-20% training-validation split ratio. In addition, a dual-center diffuse large B-cell lymphoma (DLBCL) cohort was utilized with Center 1 as training and Center 2 as independent validation datasets to predict cohort-specific clinical endpoints. Five machine learning (ML) classifiers were employed for building prediction models across all analyzed cohorts. Predictive performance was estimated by confusion matrix analytics over the validation sets of each cohort. The performance of each model with and without MLDP, as well as with manually-defined DP were compared in each of the four cohorts.ResultsSixteen of twenty established predictive models demonstrated area under the receiver operator characteristics curve (AUC) performance increase utilizing the MLDP. The MLDP resulted in the highest performance increase for random forest (RF) (+0.16 AUC) and support vector machine (SVM) (+0.13 AUC) model schemes for predicting 36-months survival in the glioma cohort. Single center cohorts resulted in complex (6-7 DP steps) DP pipelines, with a high occurrence of outlier detection, feature selection and synthetic majority oversampling technique (SMOTE). In contrast, the optimal DP pipeline for the dual-center DLBCL cohort only included outlier detection and SMOTE DP steps.ConclusionsThis study demonstrates that data preparation prior to ML prediction model building in cancer cohorts shall be ML-driven itself, yielding optimal prediction models in both single and multi-centric settings.

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US Deep Learning Market Size 2025-2029

The deep learning market size in US is forecast to increase by USD 5.02 billion at a CAGR of 30.1% between 2024 and 2029.

The deep learning market is experiencing robust growth, driven by the increasing adoption of artificial intelligence (AI) in various industries for advanced solutioning. This trend is fueled by the availability of vast amounts of data, which is a key requirement for deep learning algorithms to function effectively. Industry-specific solutions are gaining traction, as businesses seek to leverage deep learning for specific use cases such as image and speech recognition, fraud detection, and predictive maintenance. Alongside, intuitive data visualization tools are simplifying complex neural network outputs, helping stakeholders understand and validate insights. 


However, challenges remain, including the need for powerful computing resources, data privacy concerns, and the high cost of implementing and maintaining deep learning systems. Despite these hurdles, the market's potential for innovation and disruption is immense, making it an exciting space for businesses to explore further. Semi-supervised learning, data labeling, and data cleaning facilitate efficient training of deep learning models. Cloud analytics is another significant trend, as companies seek to leverage cloud computing for cost savings and scalability. 

What will be the Size of the market During the Forecast Period?

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Deep learning, a subset of machine learning, continues to shape industries by enabling advanced applications such as image and speech recognition, text generation, and pattern recognition. Reinforcement learning, a type of deep learning, gains traction, with deep reinforcement learning leading the charge. Anomaly detection, a crucial application of unsupervised learning, safeguards systems against security vulnerabilities. Ethical implications and fairness considerations are increasingly important in deep learning, with emphasis on explainable AI and model interpretability. Graph neural networks and attention mechanisms enhance data preprocessing for sequential data modeling and object detection. Time series forecasting and dataset creation further expand deep learning's reach, while privacy preservation and bias mitigation ensure responsible use.

In summary, deep learning's market dynamics reflect a constant pursuit of innovation, efficiency, and ethical considerations. The Deep Learning Market in the US is flourishing as organizations embrace intelligent systems powered by supervised learning and emerging self-supervised learning techniques. These methods refine predictive capabilities and reduce reliance on labeled data, boosting scalability. BFSI firms utilize AI image recognition for various applications, including personalizing customer communication, maintaining a competitive edge, and automating repetitive tasks to boost productivity. Sophisticated feature extraction algorithms now enable models to isolate patterns with high precision, particularly in applications such as image classification for healthcare, security, and retail.

How is this market segmented and which is the largest segment?

The market research report provides comprehensive data (region-wise segment analysis), with forecasts and estimates in 'USD million' for the period 2025-2029, as well as historical data from 2019-2023 for the following segments.

Application

  Image recognition
  Voice recognition
  Video surveillance and diagnostics
  Data mining


Type

  Software
  Services
  Hardware


End-user

  Security
  Automotive
  Healthcare
  Retail and commerce
  Others


Geography

  North America

    US

By Application Insights

The Image recognition segment is estimated to witness significant growth during the forecast period. In the realm of artificial intelligence (AI) and machine learning, image recognition, a subset of computer vision, is gaining significant traction. This technology utilizes neural networks, deep learning models, and various machine learning algorithms to decipher visual data from images and videos. Image recognition is instrumental in numerous applications, including visual search, product recommendations, and inventory management. Consumers can take photographs of products to discover similar items, enhancing the online shopping experience. In the automotive sector, image recognition is indispensable for advanced driver assistance systems (ADAS) and autonomous vehicles, enabling the identification of pedestrians, other vehicles, road signs, and lane markings.

Furthermore, image recognition plays a pivotal role in augmented reality (AR) and virtual reality (VR) applications, where it tracks physical objects and overlays digital content onto real-world scenarios. The model training process involves the backpropagation algorithm, which calculates

The diamond is 58 times harder than any other mineral in the world, and its elegance as a jewel has long been appreciated. Forecasting diamond prices is challenging due to nonlinearity in important features such as carat, cut, clarity, table, and depth. Against this backdrop, the study conducted a comparative analysis of the performance of multiple supervised machine learning models (regressors and classifiers) in predicting diamond prices. Eight supervised machine learning algorithms were evaluated in this work including Multiple Linear Regression, Linear Discriminant Analysis, eXtreme Gradient Boosting, Random Forest, k-Nearest Neighbors, Support Vector Machines, Boosted Regression and Classification Trees, and Multi-Layer Perceptron. The analysis is based on data preprocessing, exploratory data analysis (EDA), training the aforementioned models, assessing their accuracy, and interpreting their results. Based on the performance metrics values and analysis, it was discovered that eXtreme Gradient Boosting was the most optimal algorithm in both classification and regression, with a R2 score of 97.45% and an Accuracy value of 74.28%. As a result, eXtreme Gradient Boosting was recommended as the optimal regressor and classifier for forecasting the price of a diamond specimen. Methods Kaggle, a data repository with thousands of datasets, was used in the investigation. It is an online community for machine learning practitioners and data scientists, as well as a robust, well-researched, and sufficient resource for analyzing various data sources. On Kaggle, users can search for and publish various datasets. In a web-based data-science environment, they can study datasets and construct models.

Can machine learning effectively lower the effort necessary to extract important information from raw data for hydrological research questions? On the example of a typical water-management task, the extraction of direct runoff flood events from continuous hydrographs, we demonstrate how machine learning can be used to automate the application of expert knowledge to big data sets and extract the relevant information. In particular, we tested seven different algorithms to detect event beginning and end solely from a given excerpt from the continuous hydrograph. First, the number of required data points within the excerpts as well as the amount of training data has been determined. In a local application, we were able to show that all applied Machine learning algorithms were capable to reproduce manually defined event boundaries. Automatically delineated events were afflicted with a relative duration error of 20 and 5% event volume. Moreover, we could show that hydrograph separation patterns could easily be learned by the algorithms and are regionally and trans-regionally transferable without significant performance loss. Hence, the training data sets can be very small and trained algorithms can be applied to new catchments lacking training data. The results showed the great potential of machine learning to extract relevant information efficiently and, hence, lower the effort for data preprocessing for water management studies. Moreover, the transferability of trained algorithms to other catchments is a clear advantage to common methods.

The purpose of this report is to compare three different classifiers through supervised machine learning on two diverse datasets. The whole machine learning process was applied and conducted in different experiments. The exploration of the datasets as well as the preprocessing strategies are outlined in the following. Furthermore, the modelling processes and the performance measures on which their results are evaluated will be explained. Finally, different parameter adjustments and settings are compared and discussed which leads to a conclusion.

Multiplexed imaging technologies provide insights into complex tissue architectures. However, challenges arise due to software fragmentation with cumbersome data handoffs, inefficiencies in processing large images (8 to 40 gigabytes per image), and limited spatial analysis capabilities. To efficiently analyze multiplexed imaging data, we developed SPACEc, a scalable end-to-end Python solution, that handles image extraction, cell segmentation, and data preprocessing and incorporates machine-learning-enabled, multi-scaled, spatial analysis, operated through a user-friendly and interactive interface. The demonstration dataset was derived from a previous analysis and contains TMA cores from a human tonsil and tonsillitis sample that were acquired with the Akoya PhenocyclerFusion platform. The dataset can be used to test the workflow and establish it on a user’s system or to familiarize oneself with the pipeline. Methods Tissue samples: Tonsil cores were extracted from a larger multi-tumor tissue microarray (TMA), which included a total of 66 unique tissues (51 malignant and semi-malignant tissues, as well as 15 non-malignant tissues). Representative tissue regions were annotated on corresponding hematoxylin and eosin (H&E)-stained sections by a board-certified surgical pathologist (S.Z.). Annotations were used to generate the 66 cores each with cores of 1mm diameter. FFPE tissue blocks were retrieved from the tissue archives of the Institute of Pathology, University Medical Center Mainz, Germany, and the Department of Dermatology, University Medical Center Mainz, Germany. The multi-tumor-TMA block was sectioned at 3µm thickness onto SuperFrost Plus microscopy slides before being processed for CODEX multiplex imaging as previously described. CODEX multiplexed imaging and processing To run the CODEX machine, the slide was taken from the storage buffer and placed in PBS for 10 minutes to equilibrate. After drying the PBS with a tissue, a flow cell was sealed onto the tissue slide. The assembled slide and flow cell were then placed in a PhenoCycler Buffer made from 10X PhenoCycler Buffer & Additive for at least 10 minutes before starting the experiment. A 96-well reporter plate was prepared with each reporter corresponding to the correct barcoded antibody for each cycle, with up to 3 reporters per cycle per well. The fluorescence reporters were mixed with 1X PhenoCycler Buffer, Additive, nuclear-staining reagent, and assay reagent according to the manufacturer's instructions. With the reporter plate and assembled slide and flow cell placed into the CODEX machine, the automated multiplexed imaging experiment was initiated. Each imaging cycle included steps for reporter binding, imaging of three fluorescent channels, and reporter stripping to prepare for the next cycle and set of markers. This was repeated until all markers were imaged. After the experiment, a .qptiff image file containing individual antibody channels and the DAPI channel was obtained. Image stitching, drift compensation, deconvolution, and cycle concatenation are performed within the Akoya PhenoCycler software. The raw imaging data output (tiff, 377.442nm per pixel for 20x CODEX) is first examined with QuPath software (https://qupath.github.io/) for inspection of staining quality. Any markers that produce unexpected patterns or low signal-to-noise ratios should be excluded from the ensuing analysis. The qptiff files must be converted into tiff files for input into SPACEc. Data preprocessing includes image stitching, drift compensation, deconvolution, and cycle concatenation performed using the Akoya Phenocycler software. The raw imaging data (qptiff, 377.442 nm/pixel for 20x CODEX) files from the Akoya PhenoCycler technology were first examined with QuPath software (https://qupath.github.io/) to inspect staining qualities. Markers with untenable patterns or low signal-to-noise ratios were excluded from further analysis. A custom CODEX analysis pipeline was used to process all acquired CODEX data (scripts available upon request). The qptiff files were converted into tiff files for tissue detection (watershed algorithm) and cell segmentation.

BackgroundBiomarkers are a key component of precision medicine. However, full clinical integration of biomarkers has been met with challenges, partly attributed to analytical difficulties. It has been shown that biomarker reproducibility is susceptible to data preprocessing approaches. Here, we systematically evaluated machine-learning ensembles of preprocessing methods as a general strategy to improve biomarker performance for prediction of survival from early breast cancer.ResultsWe risk stratified breast cancer patients into either low-risk or high-risk groups based on four published hypoxia signatures (Buffa, Winter, Hu, and Sorensen), using 24 different preprocessing approaches for microarray normalization. The 24 binary risk profiles determined for each hypoxia signature were combined using a random forest to evaluate the efficacy of a preprocessing ensemble classifier. We demonstrate that the best way of merging preprocessing methods varies from signature to signature, and that there is likely no ‘best’ preprocessing pipeline that is universal across datasets, highlighting the need to evaluate ensembles of preprocessing algorithms. Further, we developed novel signatures for each preprocessing method and the risk classifications from each were incorporated in a meta-random forest model. Interestingly, the classification of these biomarkers and its ensemble show striking consistency, demonstrating that similar intrinsic biological information are being faithfully represented. As such, these classification patterns further confirm that there is a subset of patients whose prognosis is consistently challenging to predict.ConclusionsPerformance of different prognostic signatures varies with pre-processing method. A simple classifier by unanimous voting of classifications is a reliable way of improving on single preprocessing methods. Future signatures will likely require integration of intrinsic and extrinsic clinico-pathological variables to better predict disease-related outcomes.

local_feature_training_set.csv: Preprocessing data of feature extractor contains 65869 rows and 344 columns, and rows represent the number of samples , the first 343 columns represent feature and the last column represent label

local_feature_testing_set.csv: Preprocessing data of feature extractor contains 11791 rows and 344 columns, and rows represent the number of samples , the first 343 columns represent feature and the last column represent label

global&local_feature_training_set.csv: Preprocessing data of feature extractor contains 65869 rows and 1028 columns, and rows represent the number of samples , the first 1027 columns represent feature and the last column represent label

global&local_feature_testing_set.csv: Preprocessing data of feature extractor contains 11791 rows and 1028 columns, and rows represent the number of samples , the first 1027 columns represent feature and the last column represent label

Data Science And ML Platforms Market Outlook

The global market size for Data Science and ML Platforms was estimated to be approximately USD 78.9 billion in 2023, and it is projected to reach around USD 307.6 billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 16.4% during the forecast period. This remarkable growth can be largely attributed to the increasing adoption of artificial intelligence (AI) and machine learning (ML) across various industries to enhance operational efficiency, predictive analytics, and decision-making processes.

The surge in big data and the necessity to make sense of unstructured data is a substantial growth driver for the Data Science and ML Platforms market. Organizations are increasingly leveraging data science and machine learning to gain insights that can help them stay competitive. This is especially true in sectors like retail and e-commerce where customer behavior analytics can lead to more targeted marketing strategies, personalized shopping experiences, and improved customer retention rates. Additionally, the proliferation of IoT devices is generating massive amounts of data, which further fuels the need for advanced data analytics platforms.

Another significant growth factor is the increasing adoption of cloud-based solutions. Cloud platforms offer scalable resources, flexibility, and substantial cost savings, making them attractive for enterprises of all sizes. Cloud-based data science and machine learning platforms also facilitate collaboration among distributed teams, enabling more efficient workflows and faster time-to-market for new products and services. Furthermore, advancements in cloud technologies, such as serverless computing and containerization, are making it easier for organizations to deploy and manage their data science models.

Investment in AI and ML by key industry players also plays a crucial role in market growth. Tech giants like Google, Amazon, Microsoft, and IBM are making substantial investments in developing advanced AI and ML tools and platforms. These investments are not only driving innovation but also making these technologies more accessible to smaller enterprises. Additionally, mergers and acquisitions in this space are leading to more integrated and comprehensive solutions, which are further accelerating market growth.

Machine Learning Tools are at the heart of this technological evolution, providing the necessary frameworks and libraries that empower developers and data scientists to create sophisticated models and algorithms. These tools, such as TensorFlow, PyTorch, and Scikit-learn, offer a range of functionalities from data preprocessing to model deployment, catering to both beginners and experts. The accessibility and versatility of these tools have democratized machine learning, enabling a wider audience to harness the power of AI. As organizations continue to embrace digital transformation, the demand for robust machine learning tools is expected to grow, driving further innovation and development in this space.

From a regional perspective, North America is expected to hold the largest market share due to the early adoption of advanced technologies and the presence of major market players. However, the Asia Pacific region is anticipated to exhibit the highest growth rate during the forecast period. This is driven by increasing investments in AI and ML, a burgeoning start-up ecosystem, and supportive government policies aimed at digital transformation. Countries like China, India, and Japan are at the forefront of this growth, making significant strides in AI research and application.

Component Analysis

When analyzing the Data Science and ML Platforms market by component, it's essential to differentiate between software and services. The software segment includes platforms and tools designed for data ingestion, processing, visualization, and model building. These software solutions are crucial for organizations looking to harness the power of big data and machine learning. They provide the necessary infrastructure for data scientists to develop, test, and deploy ML models. The software segment is expected to grow significantly due to ongoing advancements in AI algorithms and the increasing need for more sophisticated data analysis tools.

The services segment in the Data Science and ML Platforms market encompasses consulting, system integration, and support services. Consulting services help organizatio

The MLCommons Dollar Street Dataset is a collection of images of everyday household items from homes around the world that visually captures socioeconomic diversity of traditionally underrepresented populations. It consists of public domain data, licensed for academic, commercial and non-commercial usage, under CC-BY and CC-BY-SA 4.0. The dataset was developed because similar datasets lack socioeconomic metadata and are not representative of global diversity.

This is a subset of the original dataset that can be used for multiclass classification with 10 categories. It is designed to be used in teaching, similar to the widely used, but unlicensed CIFAR-10 dataset.

These are the preprocessing steps that were performed:

1. Only take examples with one imagenet_synonym label
2. Use only examples with the 10 most frequently occuring labels
3. Downscale images to 64 x 64 pixels
4. Split data in train and test
5. Store as numpy array

This is the label mapping:

Checkout https://github.com/carpentries-lab/deep-learning-intro/blob/main/instructors/prepare-dollar-street-data.ipynb" target="_blank" rel="noopener">this notebook to see how the subset was created.

The original dataset was downloaded from https://www.kaggle.com/datasets/mlcommons/the-dollar-street-dataset. See https://mlcommons.org/datasets/dollar-street/ for more information.

Although metagenomic sequencing is now the preferred technique to study microbiome-host interactions, analyzing and interpreting microbiome sequencing data presents challenges primarily attributed to the statistical specificities of the data (e.g., sparse, over-dispersed, compositional, inter-variable dependency). This mini review explores preprocessing and transformation methods applied in recent human microbiome studies to address microbiome data analysis challenges. Our results indicate a limited adoption of transformation methods targeting the statistical characteristics of microbiome sequencing data. Instead, there is a prevalent usage of relative and normalization-based transformations that do not specifically account for the specific attributes of microbiome data. The information on preprocessing and transformations applied to the data before analysis was incomplete or missing in many publications, leading to reproducibility concerns, comparability issues, and questionable results. We hope this mini review will provide researchers and newcomers to the field of human microbiome research with an up-to-date point of reference for various data transformation tools and assist them in choosing the most suitable transformation method based on their research questions, objectives, and data characteristics.

This data package is associated with the publication “Prediction of Distributed River Sediment Respiration Rates using Community-Generated Data and Machine Learning’’ submitted to the Journal of Geophysical Research: Machine Learning and Computation (Scheibe et al. 2024). River sediment respiration observations are expensive and labor intensive to obtain and there is no physical model for predicting this quantity. The Worldwide Hydrobiogeochemisty Observation Network for Dynamic River Systems (WHONDRS) observational data set (Goldman et al.; 2020) is used to train machine learning (ML) models to predict respiration rates at unsampled sites. This repository archives training data, ML models, predictions, and model evaluation results for the purposes of reproducibility of the results in the associated manuscript and community reuse of the ML models trained in this project. One of the key challenges in this work was to find an optimum configuration for machine learning models to work with this feature-rich (i.e. 100+ possible input variables) data set. Here, we used a two-tiered approach to managing the analysis of this complex data set: 1) a stacked ensemble of ML models that can automatically optimize hyperparameters to accelerate the process of model selection and tuning and 2) feature permutation importance to iteratively select the most important features (i.e. inputs) to the ML models. The major elements of this ML workflow are modular, portable, open, and cloud-based, thus making this implementation a potential template for other applications. This data package is associated with the GitHub repository found at https://github.com/parallelworks/sl-archive-whondrs. A static copy of the GitHub repository is included in this data package as an archived version at the time of publishing this data package (March 2023). However, we recommend accessing these files via GitHub for full functionality. Please see the file level metadata (flmd; “sl-archive-whondrs_flmd.csv”) for a list of all files contained in this data package and descriptions for each. Please see the data dictionary (dd; “sl-archive-whondrs_dd.csv”) for a list of all column headers contained within comma separated value (csv) files in this data package and descriptions for each. The GitHub repository is organized into five top-level directories: (1) “input_data” holds the training data for the ML models; (2) “ml_models” holds machine learning models trained on the data in “input_data”; (3) “scripts” contains data preprocessing and postprocessing scripts and intermediate results specific to this data set that bookend the ML workflow; (4) “examples” contains the visualization of the results in this repository including plotting scripts for the manuscript (e.g., model evaluation, FPI results) and scripts for running predictions with the ML models (i.e., reusing the trained ML models); (5) “output_data” holds the overall results of the ML model on that branch. Each trained ML model resides on its own branch in the repository; this means that inputs and outputs can be different branch-to-branch. Furthermore, depending on the number of features used to train the ML models, the preprocessing and postprocessing scripts, and their intermediate results, can also be different branch-to-branch. The “main-*” branches are meant to be starting points (i.e. trunks) for each model branch (i.e. sprouts). Please see the Branch Navigation section in the top-level README.md in the GitHub repository for more details. There is also one hidden directory “.github/workflows”. This hidden directory contains information for how to run the ML workflow as an end-to-end automated GitHub Action but it is not needed for reusing the ML models archived here. Please the top-level README.md in the GitHub repository for more details on the automation.

Early detection of Diabetic Retinopathy is a key challenge to prevent a patient from potential vision loss. The task of DR detection often requires special expertise from ophthalmologists. In remote places of the world such facilities may not be available, so In an attempt to automate the detection of DR, machine learning and deep learning techniques can be adopted. Some of the recent papers have proven such success on various publicly available dataset.

Another challenge of deep learning techniques is the availability of rightly processed standardized data. Cleaning and preprocessing the data often takes much longer time than the model training. As a part of my research work, I had to preprocess the images taken from APTOS and Messidor before training the model. I applied circle-crop and Graham Ben's preprocessing technique and scaled all the images to 512X512 format. Also, I applied the data augmentation technique and increased the number of samples from 3662 data of APTOS to 18310, and 400 messidor samples to 3600 samples. I divided the images into two classes class 0 (NO DR) and class 1 (DR). The large number of data is essential for transfer learning. This process is very cumbersome and time-consuming. So I thought to upload the newly generated dataset in Kaggle so that some people might find it useful for their work. I hope this will help many people. Feel free to use the data.

Description:

👉 Download the dataset here

The Printed Digits Dataset is a comprehensive collection of approximately 3,000 grayscale images, specifically curate for numeric digit classification tasks. Originally create with 177 images, this dataset has undergone extensive augmentation to enhance its diversity and utility, making it an ideal resource for machine learning projects such as Sudoku digit recognition.

Dataset Composition:

Image Count: The dataset contains around 3,000 images, each representing a single numeric digit from 0 to 9.

Image Dimensions: Each image is standardized to a 28×28 pixel resolution, maintaining a consistent grayscale format.

Purpose: This dataset was develop with a specific focus on Sudoku digit classification. Notably, it includes blank images for the digit '0', reflecting the common occurrence of empty cells in Sudoku puzzles.

Download Dataset

Augmentation Details:

To expand the original dataset from 177 images to 3,000, a variety of data augmentation techniques were apply. These include:

Rotation: Images were rotated to simulate different orientations of printed digits.

Scaling: Variations in the size of digits were introduced to mimic real-world printing inconsistencies.

Translation: Digits were shifted within the image frame to represent slight misalignments often seen in printed text.

Noise Addition: Gaussian noise was added to simulate varying print quality and scanner imperfections.

Applications:

Sudoku Digit Recognition: Given its design, this dataset is particularly well-suited for training models to recognize and classify digits in Sudoku puzzles.

Handwritten Digit Classification: Although the dataset contains printed digits, it can be adapted and utilized in combination with handwritten digit datasets for broader numeric

classification tasks.

Optical Character Recognition (OCR): This dataset can also be valuable for training OCR systems, especially those aim at processing low-resolution or small-scale printed text.

Dataset Quality:

Uniformity: All images are uniformly scaled and aligned, providing a clean and consistent dataset for model training.

Diversity: Augmentation has significantly increased the diversity of digit representation, making the dataset robust for training deep learning models.

Usage Notes:

Zero Representation: Users should note that the digit '0' is represented by a blank image.

This design choice aligns with the specific application of Sudoku puzzle solving but may require adjustments if the dataset is use for other numeric classification tasks.

Preprocessing Required: While the dataset is ready for use, additional preprocessing steps, such as normalization or further augmentation, can be applied based on the specific requirements of the intended machine learning model.

File Format:

The images are stored in a standardized format compatible with most machine learning frameworks, ensuring ease of integration into existing workflows.

Conclusion: The Printed Digits Dataset offers a rich resource for those working on digit classification projects, particularly within the context of Sudoku or other numeric-based puzzles. Its extensive augmentation and attention to application-specific details make it a valuable asset for both academic research and practical Al development.

This dataset is sourced from Kaggle.

Overview

This replication package accompanies the paper "How Do Machine Learning Models Change?" In this study, we conducted a comprehensive analysis of over 200,000 commits and 1,200 releases across more than 50,000 models on the Hugging Face (HF) platform. Our goal was to understand how machine learning (ML) models evolve over time by classifying commit types based on an extended ML change taxonomy and analyzing patterns in commit and release activities using Bayesian networks.

Our research addresses three main aspects:

1. Categorization of Commit Changes: We classified over 200,000 commits on HF using an extended ML change taxonomy, providing a detailed breakdown of change types and their distribution across models.
2. Analysis of Commit Sequences: We examined the sequence and dependencies of commit types using Bayesian networks to identify temporal patterns and common progression paths in model changes.
3. Release Analysis: We investigated the distribution and evolution of release types, analyzing how model attributes and metadata change across successive releases.

This replication package contains all the necessary code, datasets, and documentation to reproduce the results presented in the paper.

Data Collection and Preprocessing

Data Collection

We collected data from the Hugging Face platform using the Hugging Face Hub API and the `HfApi` class. The data extraction was performed on November 6th, 2023. The collected data includes:

• Model Information: Details of over 380,000 models, including dataset sizes, training hardware, evaluation metrics, model file sizes, number of downloads and likes, tags, and the raw text of model cards.
• Commit Histories: Comprehensive commit details, including commit messages, dates, authors, and the list of files edited in each commit.
• Release Information: Information on model releases marked by tags in their repositories.

To enrich the commit data with detailed file change information, we integrated the PyDriller framework within the HFCommunity dataset.

Data Preprocessing

Commit Diffs

We computed the differences between commits for key files, specifically JSON configuration files (e.g., `config.json`). For each commit that modifies these files, we compared the changes with the previous commit affecting the same file to identify added, deleted, and updated keys.

Commit Classification

We classified each commit according to Bhatia et al.'s ML change taxonomy using the Gemini 1.5 Flash Large Language Model (LLM). This classification, using LLMs to apply Bhatia et al.'s taxonomy on a large-scale ML repository, is one of the main contributions of our paper. We ensured the correctness of the classification by achieving a Cohen's kappa coefficient ≥ 0.9 through iterative validation. In addition, we performed classification based on Swanson's categories using a simpler neural network approach, following methods from prior work. This classification has less impact compared to the detailed classification using Bhatia et al.'s taxonomy.

Model Metadata

We extracted detailed metadata from the model files of selected releases, focusing on attributes such as the number of parameters, tensor shapes, etc. We also calculated the differences between the metadata of successive releases.

Folder Structure

The replication package is organized as follows:

- code/: Contains the Jupyter notebooks with the data extraction, preprocessing, analysis, and model training scripts.

• Collection/: Contains two Jupyter notebooks for data collection:
  • HFTotalExtraction.ipynb: Script for collecting data on the entire Hugging Face platform.
  • HFReleasesExtraction.ipynb: Script for collecting data on models that contain releases.
• Preprocessing/: Contains preprocessing scripts:
  • HFTotalPreprocessing.ipynb: Preprocesses the dataset obtained from `HFTotalExtraction.ipynb`.
  • HFCommitsPreprocessing.ipynb: Processes commit data, including:
    • Retrieval of diff information between commits.
    • Classification of commits following Bhatia et al.'s taxonomy using LLMs.
    • Extension and adaptation of the final commits dataset, including additional variables for Bayesian network analysis.
  • HFReleasesPreprocessing.ipynb: Processes release data, including classification and preparation for analysis.
• Analysis/: Contains three Jupyter notebooks with the analysis for each research question:
  • RQ1_Analysis.ipynb: Analysis for RQ1.
  • RQ2_Analysis.ipynb: Analysis for RQ2.
  • RQ3_Analysis.ipynb: Analysis for RQ3.

- datasets/: Contains the raw, processed, and manually curated datasets used for the analysis.

• Main Datasets:
  • HFCommits_50K_RANDOM.csv: Contains the commits of 50,000 randomly sampled models from HF with the classification based on Bhatia et al.'s taxonomy.
  • HFCommits_MultipleCommits.csv: Contains the commits of 10,000 models with at least 10 commits, used for analyzing commit sequences.
  • HFReleases.csv: Contains over 1,200 releases from 127 models, classified using Bhatia et al.'s taxonomy.
  • model_metadata_with_diff.csv: Contains the metadata of releases from 27 models, including differences between successive releases.
  • These datasets correspond to the following dataset splits:
    • +200,000 commits from 50,000 models: Used for RQ1. Provides a broad overview of commit types and patterns across diverse models.
    • +200,000 commits from 10,000 models: Used for RQ2. Focuses on models with at least 10 commits for detailed evolutionary study.
    • +1,200 releases from 127 models: Used for RQ3.1, RQ3.2, and RQ3.3. Facilitates the investigation of release patterns and their evolution.
    • Metadata of 173 releases from 27 models: Used for RQ3.4. Analyzes the evolution of model parameters and configurations.

• Additional Datasets:
  • HF_Total_Raw.csv: Contains a snapshot of the entire Hugging Face platform with over 380,000 models, as obtained from HFTotalExtraction.ipynb.
  • HF_Total_Preprocessed.csv: Contains the preprocessed version of the entire HF dataset, as obtained from HFTotalPreprocessing.ipynb. This dataset is needed for the commits preprocessing.
  • Auxiliary datasets generated during processing are also included to facilitate reproduction of specific parts of the code without time-consuming steps.

- metadata/: Contains the tags_metadata.yaml file used during preprocessing.

- models/: Contains the model trained to classify commit messages into corrective, perfective, and adaptive types based on Swanson's traditional software maintenance categories.

- requirements.txt: Lists the required Python packages to set up the environment and run the code.

Setup and Execution

Prerequisites

• Python 3.10.11 or later.
• Jupyter Notebook or JupyterLab.

Installation

1. Download and Extract the Replication Package
2. Create a Virtual Environment (Recommended):bash
python -m venv venv
source venv/bin/activate # On Windows, use venv\Scripts\activate
3. Install Required Packages:bash
pip install -r requirements.txt

Notes

- LLM Usage: The classification of commits using the Gemini 1.5 Flash LLM requires access to the model. Ensure you have the necessary permissions and API keys to use the model.

- Computational Resources: Processing large datasets and running Bayesian network analyses may require significant computational resources. It is recommended to use a machine with ample memory and processing power.

- Reproducing Results: The auxiliary datasets included can be used to reproduce specific parts of the code without re-running the entire data collection and preprocessing pipeline.

Additional Information

Contact: If you have any questions or encounter issues, please contact the authors at joel.castano@upc.edu.

This README provides detailed instructions and information to reproduce and understand the analyses performed in the paper. If you find this package useful, please cite our work.

The dataset structure is designed to include two main directories, "train" and "test." Each of these directories is divided into subfolders, where data is organized based on the type of character (handwritten digits from 0 to 9 and mathematical symbols such as parentheses, brackets, braces, and arithmetic signs). The images, after digitization, have been resized to a standard dimension of 28x28 pixels, and various filters (including Gaussian Blur, Median Blur, and Canny) were applied for noise reduction and enhancement of clarity. This preprocessing ensures data uniformity, enabling direct use in deep learning and computer vision algorithms.

Deep learning, a state-of-the-art machine learning approach, has shown outstanding performance over traditional machine learning in identifying intricate structures in complex high-dimensional data, especially in the domain of computer vision. The application of deep learning to early detection and automated classification of Alzheimer's disease (AD) has recently gained considerable attention, as rapid progress in neuroimaging techniques has generated large-scale multimodal neuroimaging data. A systematic review of publications using deep learning approaches and neuroimaging data for diagnostic classification of AD was performed. A PubMed and Google Scholar search was used to identify deep learning papers on AD published between January 2013 and July 2018. These papers were reviewed, evaluated, and classified by algorithm and neuroimaging type, and the findings were summarized. Of 16 studies meeting full inclusion criteria, 4 used a combination of deep learning and traditional machine learning approaches, and 12 used only deep learning approaches. The combination of traditional machine learning for classification and stacked auto-encoder (SAE) for feature selection produced accuracies of up to 98.8% for AD classification and 83.7% for prediction of conversion from mild cognitive impairment (MCI), a prodromal stage of AD, to AD. Deep learning approaches, such as convolutional neural network (CNN) or recurrent neural network (RNN), that use neuroimaging data without pre-processing for feature selection have yielded accuracies of up to 96.0% for AD classification and 84.2% for MCI conversion prediction. The best classification performance was obtained when multimodal neuroimaging and fluid biomarkers were combined. Deep learning approaches continue to improve in performance and appear to hold promise for diagnostic classification of AD using multimodal neuroimaging data. AD research that uses deep learning is still evolving, improving performance by incorporating additional hybrid data types, such as—omics data, increasing transparency with explainable approaches that add knowledge of specific disease-related features and mechanisms.

Context

Data set was created by preprocessing (filling lost data, extracting new features) of Titanic - Machine Learning Disaster data set.

Using this processed data set, the machine learning models can be applied directly.

You can see preprocessing step in notebook: https://www.kaggle.com/fethiye/titanic-predict-survival-prediction

Description:

👉 Download the dataset here

This dataset consists of a diverse collection of images, tailored specifically for the task of Animal Image Classification Dataset in the domain of animal species. It contains 15 distinct folders, each corresponding to a unique animal class, with each folder representing the name of the animal species. The dataset is composed of a variety of images that have been preprocessed and prepared for use in machine learning applications.

Dataset Details:

Image Size: Each image in the dataset has been resized to dimensions of 224x224 pixels with 3 color channels (RGB), making them suitable for immediate use in neural networks.

Data Source: Images were sourced from publicly available databases on the web. They encompass various environments, lighting conditions, and angles, ensuring a rich and diverse representation of each animal class.

Classes: The dataset includes 15 animal classes such as cats, dogs, birds, elephants, lions, and more, with each class represented by images stored in its respective folder.

Download Dataset

Preprocessing and Augmentation:

The dataset underwent extensive preprocessing using OpenCV libraries, ensuring that all images were standardized to the same size. In addition to resizing, multiple augmentation techniques were applied to diversify the dataset and improve model generalization. These augmentations include:

Rotation: Random rotations applied to simulate different perspectives.

Flipping: Horizontal flips to account for variations in animal orientation.

Cropping: Random cropping to focus on various parts of the animal subjects.

Scaling: Minor scaling adjustments to simulate different zoom levels.

All preprocessing and augmentation were carried out to enhance the robustness of any model trained on this data, without the need for further augmentation steps. Therefore, the dataset is ready for immediate use in training deep learning models such as CNNs (Convolutional Neural Networks) or transfer learning models.

Applications:

This dataset is ideal for:

Image Classification: Train models to accurately classify different animal species.

Transfer Learning: Utilize pre-trained models to fine-tune performance on this dataset.

Computer Vision Research: Explore various computer vision tasks, such as animal identification, object detection, and species recognition.

Wildlife and Conservation Studies: Use the dataset to build Al systems capable of identifying animals in the wild for tracking and conservation efforts.

Potential Use Cases:

Education: For students and researchers to learn and experiment with animal classification using computer vision techniques.

Al and Machine Learning Competitions: A challenging dataset for machine learning competitions centered around image classification.

Mobile Applications: Can be used to develop apps for real-time animal identification using image recognition technology.

Dataset Format:

The dataset is structured for ease of use, with each folder containing images pertaining to a specific class. The file format is as follows:

Folder Structure: dataset/{class_name}/{image_files.jpg}

Image Type: JPEG/PNG

Annotations: No specific annotations are included, but each folder name serves as the label for the images within it.

This dataset is sourced from Kaggle.