The Data Annotation and Collection Services market is experiencing robust growth, driven by the increasing adoption of artificial intelligence (AI) and machine learning (ML) across diverse sectors. The market, estimated at $10 billion in 2025, is projected to achieve a Compound Annual Growth Rate (CAGR) of 25% from 2025 to 2033, reaching approximately $45 billion by 2033. This significant expansion is fueled by several key factors. The surge in autonomous driving initiatives necessitates high-quality data annotation for training self-driving systems, while the burgeoning smart healthcare sector relies heavily on annotated medical images and data for accurate diagnoses and treatment planning. Similarly, the growth of smart security systems and financial risk control applications demands precise data annotation for improved accuracy and efficiency. Image annotation currently dominates the market, followed by text annotation, reflecting the widespread use of computer vision and natural language processing. However, video and voice annotation segments are showing rapid growth, driven by advancements in AI-powered video analytics and voice recognition technologies. Competition is intense, with both established technology giants like Alibaba Cloud and Baidu, and specialized data annotation companies like Appen and Scale Labs vying for market share. Geographic distribution shows a strong concentration in North America and Europe initially, but Asia-Pacific is expected to emerge as a major growth region in the coming years, driven primarily by China and India's expanding technology sectors. The market, however, faces certain challenges. The high cost of data annotation, particularly for complex tasks such as video annotation, can pose a barrier to entry for smaller companies. Ensuring data quality and accuracy remains a significant concern, requiring robust quality control mechanisms. Furthermore, ethical considerations surrounding data privacy and bias in algorithms require careful attention. To overcome these challenges, companies are investing in automation tools and techniques like synthetic data generation, alongside developing more sophisticated quality control measures. The future of the Data Annotation and Collection Services market will likely be shaped by advancements in AI and ML technologies, the increasing availability of diverse data sets, and the growing awareness of ethical considerations surrounding data usage.

Video Annotation Services Market Analysis The global video annotation services market size was valued at USD 475.6 million in 2025 and is projected to reach USD 843.2 million by 2033, exhibiting a compound annual growth rate (CAGR) of 7.4% over the forecast period. The increasing demand for video data in various industries such as healthcare, transportation, retail, and entertainment, coupled with the growing adoption of artificial intelligence (AI) and machine learning (ML) technologies, is driving the market growth. Moreover, the emergence of new annotation techniques and the increasing adoption of cloud-based annotation solutions are further contributing to the market expansion. Key market trends include the integration of AI and ML capabilities to enhance annotation accuracy and efficiency, the increasing adoption of remote and hybrid work models leading to the demand for automated video annotation tools, and the focus on ethical and responsible data annotation practices to ensure data privacy and protection. Major companies operating in the market include Acclivis, Ai-workspace, GTS, HabileData, iMerit, Keymakr, LXT, Mindy Support, Sama, Shaip, SunTec, TaskUs, Tasq, and Triyock. North America holds a dominant share in the market, followed by Europe and Asia Pacific.

The data collection and labeling market is experiencing robust growth, fueled by the escalating demand for high-quality training data in artificial intelligence (AI) and machine learning (ML) applications. The market, estimated at $15 billion in 2025, is projected to achieve a Compound Annual Growth Rate (CAGR) of 25% over the forecast period (2025-2033), reaching approximately $75 billion by 2033. This expansion is primarily driven by the increasing adoption of AI across diverse sectors, including healthcare (medical image analysis, drug discovery), automotive (autonomous driving systems), finance (fraud detection, risk assessment), and retail (personalized recommendations, inventory management). The rising complexity of AI models and the need for more diverse and nuanced datasets are significant contributing factors to this growth. Furthermore, advancements in data annotation tools and techniques, such as active learning and synthetic data generation, are streamlining the data labeling process and making it more cost-effective. However, challenges remain. Data privacy concerns and regulations like GDPR necessitate robust data security measures, adding to the cost and complexity of data collection and labeling. The shortage of skilled data annotators also hinders market growth, necessitating investments in training and upskilling programs. Despite these restraints, the market’s inherent potential, coupled with ongoing technological advancements and increased industry investments, ensures sustained expansion in the coming years. Geographic distribution shows strong concentration in North America and Europe initially, but Asia-Pacific is poised for rapid growth due to increasing AI adoption and the availability of a large workforce. This makes strategic partnerships and global expansion crucial for market players aiming for long-term success.

The global healthcare data annotation tools market size reached USD 204.6 Million in 2024. Looking forward, IMARC Group expects the market to reach USD 1,308.5 Million by 2033, exhibiting a growth rate (CAGR) of 22.9% during 2025-2033. The increasing adoption of artificial intelligence (AI) and machine learning (ML) in healthcare, the rise in generating vast amounts of data, significant advancement in medical imaging technologies, and the increasing demand for telemedicine are some of the major factors propelling the market.

IMARC Group provides an analysis of the key trends in each segment of the global healthcare data annotation tools market report, along with forecasts at the global, regional, and country levels for 2025-2033. Our report has categorized the market based on type, technology, application, and end user.

The global Data Labeling Solution and Services market is experiencing robust growth, driven by the increasing adoption of artificial intelligence (AI) and machine learning (ML) across diverse sectors. The market, estimated at $15 billion in 2025, is projected to exhibit a Compound Annual Growth Rate (CAGR) of 25% from 2025 to 2033, reaching an estimated market value of $70 billion by 2033. This significant expansion is fueled by the burgeoning need for high-quality training data to enhance the accuracy and performance of AI models. Key growth drivers include the expanding application of AI in various industries like automotive (autonomous vehicles), healthcare (medical image analysis), and financial services (fraud detection). The increasing availability of diverse data types (text, image/video, audio) further contributes to market growth. However, challenges such as the high cost of data labeling, data privacy concerns, and the need for skilled professionals to manage and execute labeling projects pose certain restraints on market expansion. Segmentation by application (automotive, government, healthcare, financial services, others) and data type (text, image/video, audio) reveals distinct growth trajectories within the market. The automotive and healthcare sectors currently dominate, but the government and financial services segments are showing promising growth potential. The competitive landscape is marked by a mix of established players and emerging startups. Companies like Amazon Mechanical Turk, Appen, and Labelbox are leading the market, leveraging their expertise in crowdsourcing, automation, and specialized data labeling solutions. However, the market shows strong potential for innovation, particularly in the development of automated data labeling tools and the expansion of services into niche areas. Regional analysis indicates strong market penetration in North America and Europe, driven by early adoption of AI technologies and robust research and development efforts. However, Asia-Pacific is expected to witness significant growth in the coming years fueled by rapid technological advancements and a rising demand for AI solutions. Further investment in R&D focused on automation, improved data security, and the development of more effective data labeling methodologies will be crucial for unlocking the full potential of this rapidly expanding market.

The global data annotation platform market is experiencing robust growth, driven by the increasing demand for high-quality training data across diverse sectors. The market's expansion is fueled by the proliferation of artificial intelligence (AI) and machine learning (ML) applications in autonomous driving, smart healthcare, and financial risk control. Autonomous vehicles, for instance, require vast amounts of annotated data for object recognition and navigation, significantly boosting demand. Similarly, the healthcare sector leverages data annotation for medical image analysis, leading to advancements in diagnostics and treatment. The market is segmented by application (Autonomous Driving, Smart Healthcare, Smart Security, Financial Risk Control, Social Media, Others) and annotation type (Image, Text, Voice, Video, Others). The prevalent use of cloud-based platforms, coupled with the rising adoption of AI across various industries, presents significant opportunities for market expansion. While the market faces challenges such as high annotation costs and data privacy concerns, the overall growth trajectory remains positive, with a projected compound annual growth rate (CAGR) suggesting substantial market expansion over the forecast period (2025-2033). Competition among established players like Appen, Amazon, and Google, alongside emerging players focusing on specialized annotation needs, is expected to intensify. The regional distribution of the market reflects the concentration of AI and technology development in specific geographical regions. North America and Europe currently hold a significant market share due to their robust technological infrastructure and early adoption of AI technologies. However, the Asia-Pacific region, particularly China and India, is demonstrating rapid growth potential due to the burgeoning AI industry and expanding digital economy. This signifies a shift in market dynamics, as the demand for data annotation services increases globally, leading to a more geographically diverse market landscape. Continuous advancements in annotation techniques, including the use of automated tools and crowdsourcing, are expected to reduce costs and improve efficiency, further fueling market growth.

The Asia Pacific data annotation tools market is projected to exhibit a robust CAGR of 28.05% during the forecast period of 2025-2033. This growth is primarily driven by the surging demand for high-quality annotated data for training and developing artificial intelligence (AI) and machine learning (ML) algorithms. The increasing adoption of AI and ML across various industry verticals, such as healthcare, retail, and financial services, is fueling the need for accurate and reliable data annotation. Key trends influencing the market growth include the rise of self-supervised annotation techniques, advancements in natural language processing (NLP), and the proliferation of cloud-based annotation platforms. Additionally, the growing awareness of the importance of data privacy and security is driving the adoption of annotation tools that comply with industry regulations. The competitive landscape features a mix of established players and emerging startups offering a wide range of annotation tools. The Asia Pacific data annotation tools market is projected to grow from USD 2.4 billion in 2022 to USD 10.5 billion by 2027, at a CAGR of 35.4% during the forecast period. The growth of the market is attributed to the increasing adoption of artificial intelligence (AI) and machine learning (ML) technologies, which require large amounts of annotated data for training and development.

This is an enriched version of the Code4ML dataset, a large-scale corpus of annotated Python code snippets, competition summaries, and data descriptions sourced from Kaggle. The initial release includes approximately 2.5 million snippets of machine learning code extracted from around 100,000 Jupyter notebooks. A portion of these snippets has been manually annotated by human assessors through a custom-built, user-friendly interface designed for this task.

The original dataset is organized into multiple CSV files, each containing structured data on different entities:

• code_blocks.csv: Contains raw code snippets extracted from Kaggle.
• kernels_meta.csv: Metadata for the notebooks (kernels) from which the code snippets were derived.
• competitions_meta.csv: Metadata describing Kaggle competitions, including information about tasks and data.
• markup_data.csv: Annotated code blocks with semantic types, allowing deeper analysis of code structure.
• vertices.csv: A mapping from numeric IDs to semantic types and subclasses, used to interpret annotated code blocks.

Table 1. code_blocks.csv structure

Table 2. kernels_meta.csv structure

Table 3. competitions_meta.csv structure

Table 4. markup_data.csv structure

The dataset allows mapping between these tables. For example:

• code_blocks.csv can be linked to kernels_meta.csv via the kernel_id column.
• kernels_meta.csv is connected to competitions_meta.csv through comp_name. To maintain quality, kernels_meta.csv includes only notebooks with available Kaggle scores.

In addition, data_with_preds.csv contains automatically classified code blocks, with a mapping back to code_blocks.csvvia the code_blocks_index column.

Code4ML 2.0 Enhancements

The updated Code4ML 2.0 corpus introduces kernels extracted from Meta Kaggle Code. These kernels correspond to the kaggle competitions launched since 2020. The natural descriptions of the competitions are retrieved with the aim of LLM.

Notebooks in kernels_meta2.csv may not have a Kaggle score but include a leaderboard ranking (rank), providing additional context for evaluation.

Applications

The Code4ML 2.0 corpus is a versatile resource, enabling training and evaluation of models in areas such as:

• Code generation
• Code understanding
• Natural language processing of code-related tasks

1. Overview This dataset is a collection of 6,000+ images of mixed race human face with various expressions & emotions that are ready to use for optimizing the accuracy of computer vision models. All of the contents is sourced from PIXTA's stock library of 100M+ Asian-featured images and videos. PIXTA is the largest platform of visual materials in the Asia Pacific region offering fully-managed services, high quality contents and data, and powerful tools for businesses & organisations to enable their creative and machine learning projects.

2. The data set This dataset contains 6,000+ images of face emotion. Each data set is supported by both AI and human review process to ensure labelling consistency and accuracy. Contact us for more custom datasets.

3. About PIXTA PIXTASTOCK is the largest Asian-featured stock platform providing data, contents, tools and services since 2005. PIXTA experiences 15 years of integrating advanced AI technology in managing, curating, processing over 100M visual materials and serving global leading brands for their creative and data demands. Visit us at https://www.pixta.ai/ or contact via our email contact@pixta.ai."

The global data annotation platform market is projected to reach USD 4.4 billion by 2033, exhibiting a CAGR of 12.0% during the forecast period. The growing demand for data annotation in autonomous driving, smart healthcare, and other applications is driving the market growth. The increasing adoption of artificial intelligence (AI) and machine learning (ML) technologies is further fueling the market's expansion. North America and Europe are the dominant regional markets for data annotation platforms. However, the Asia Pacific region is expected to witness the highest growth rate during the forecast period. The rising number of AI startups and the growing adoption of AI technologies in various industries are contributing to the market's growth in this region. The presence of major players such as BasicFinder, Jingdong Weigong, Alibaba Cloud, Appen (MatrixGo), Baidu, and Longmao Data is also supporting the market's growth in the Asia Pacific region.

The open-source data labeling tool market is experiencing robust growth, driven by the increasing demand for high-quality training data in the burgeoning artificial intelligence (AI) and machine learning (ML) sectors. The market's expansion is fueled by several key factors. Firstly, the rising adoption of AI across various industries, including healthcare, automotive, and finance, necessitates large volumes of accurately labeled data. Secondly, open-source tools offer a cost-effective alternative to proprietary solutions, making them attractive to startups and smaller companies with limited budgets. Thirdly, the collaborative nature of open-source development fosters continuous improvement and innovation, leading to more sophisticated and user-friendly tools. While the cloud-based segment currently dominates due to scalability and accessibility, on-premise solutions maintain a significant share, especially among organizations with stringent data security and privacy requirements. The geographical distribution reveals strong growth in North America and Europe, driven by established tech ecosystems and early adoption of AI technologies. However, the Asia-Pacific region is expected to witness significant growth in the coming years, fueled by increasing digitalization and government initiatives promoting AI development. The market faces some challenges, including the need for skilled data labelers and the potential for inconsistencies in data quality across different open-source tools. Nevertheless, ongoing developments in automation and standardization are expected to mitigate these concerns. The forecast period of 2025-2033 suggests a continued upward trajectory for the open-source data labeling tool market. Assuming a conservative CAGR of 15% (a reasonable estimate given the rapid advancements in AI and the increasing need for labeled data), and a 2025 market size of $500 million (a plausible figure considering the significant investments in the broader AI market), the market is projected to reach approximately $1.8 billion by 2033. This growth will be further shaped by the ongoing development of new features, improved user interfaces, and the integration of advanced techniques such as active learning and semi-supervised learning within open-source tools. The competitive landscape is dynamic, with both established players and emerging startups contributing to the innovation and expansion of this crucial segment of the AI ecosystem. Companies are focusing on improving the accuracy, efficiency, and accessibility of their tools to cater to a growing and diverse user base.

3,000+ high quality images of babies & toddlers in dangerous poses & situations for AI & ML model

1. Overview This dataset is a collection of high view traffic images in multiple scenes, backgrounds and lighting conditions that are ready to use for optimizing the accuracy of computer vision models. All of the contents is sourced from PIXTA's stock library of 100M+ Asian-featured images and videos. PIXTA is the largest platform of visual materials in the Asia Pacific region offering fully-managed services, high quality contents and data, and powerful tools for businesses & organisations to enable their creative and machine learning projects.

2. Use case This dataset is used for AI solutions training & testing in various cases: Traffic monitoring, Traffic camera system, Vehicle flow estimation,... Each data set is supported by both AI and human review process to ensure labelling consistency and accuracy. Contact us for more custom datasets.

3. About PIXTA PIXTASTOCK is the largest Asian-featured stock platform providing data, contents, tools and services since 2005. PIXTA experiences 15 years of integrating advanced AI technology in managing, curating, processing over 100M visual materials and serving global leading brands for their creative and data demands. Visit us at https://www.pixta.ai/ for more details.

1. Specifications Data size : 60,000 ID

Population distribution : the race distribution is Asians, Caucasians and black people, the gender distribution is male and female, the age distribution is from children to the elderly

Collecting environment : including indoor and outdoor scenes (such as supermarket, mall and residential area, etc.)

Data diversity : different ages, different time periods, different cameras, different human body orientations and postures, different ages collecting environment

Device : surveillance cameras, the image resolution is not less than 1,9201,080

Data format : the image data format is .jpg, the annotation file format is .json

Annotation content : human body rectangular bounding boxes, 15 human body attributes

Quality Requirements : A rectangular bounding box of human body is qualified when the deviation is not more than 3 pixels, and the qualified rate of the bounding boxes shall not be lower than 97%;Annotation accuracy of attributes is over 97%

1. About Nexdata Nexdata owns off-the-shelf PB-level Large Language Model(LLM) Data, 1 million hours of Audio Data and 800TB of Annotated Imagery Data.These ready-to-go Identity Data support instant delivery, quickly improve the accuracy of AI models. For more details, please visit us at https://www.nexdata.ai/datasets/computervision?source=Datarade

The Machine Parts Segmentation Dataset is tailored for the manufacturing sector, featuring a collection of internet-collected images with a resolution of 2048 x 1536 pixels. This dataset is specialized in semantic segmentation, polygon, and key points annotations, focusing on contour annotation of machining positions within X-ray images of machine parts, facilitating precise analysis and inspection in manufacturing processes.

Description

CloudSEN12 is a large dataset for cloud semantic understanding that consists of 9880 regions of interest (ROIs). Each ROI has five 5090x5090 meters image patches (IPs) collected on different dates; we manually choose the images to guarantee that each IP inside an ROI matches one of the following cloud cover groups:

- clear (0%)

- low-cloudy (1% - 25%)

- almost clear (25% - 45%)

- mid-cloudy (45% - 65%)

- cloudy (65% >)

An IP is the core unit in CloudSEN12. Each IP contains data from Sentinel-2 optical levels 1C and 2A, Sentinel-1 Synthetic Aperture Radar (SAR), digital elevation model, surface water occurrence, land cover classes, and cloud mask results from eight cutting-edge cloud detection algorithms. Besides, in order to support standard, weakly, and self-/semi-supervised learning procedures, cloudSEN12 includes three distinct forms of hand-crafted labelling data: high-quality, scribble, and no annotation. Consequently, each ROI is randomly assigned to a different annotation group:

• 2000 ROIs with pixel-level annotation, where the average annotation time is 150 minutes (high-quality group).

• 2000 ROIs with scribble level annotation, where the annotation time is 15 minutes (scribble group).

• 5880 ROIs with annotation only in the cloud-free (0\%) image (no annotation group).

For high-quality labels, we use the Intelligence foR Image Segmentation\cite{iris2019} (IRIS) active learning technology, a system that combines human photo-interpretation and machine learning. For scribble, ground truth pixels were drawn using IRIS but without ML support. Finally, the no annotation dataset is generated automatically, with manual annotation only in the clear image patch. The dataset is already available here: https://shorturl.at/cgjtz. Check out our website https://cloudsen12.github.io/ for examples of how to download the dataset via STAC.

Coast Train is a library of images of coastal environments, annotations, and corresponding thematic label masks (or ‘label images’) collated for the purposes of training and evaluating machine learning (ML), deep learning, and other models for image segmentation. It includes image sets from both geospatial satellite, aerial, and UAV imagery and orthomosaics, as well as non-geospatial oblique and nadir imagery. Images include a diverse range of coastal environments from the U.S. Pacific, Gulf of Mexico, Atlantic, and Great Lakes coastlines, consisting of time-series of high-resolution (≤1m) orthomosaics and satellite image tiles (10–30m). Each image, image annotation, and labelled image is available as a single NPZ zipped file. NPZ files follow the following naming convention: {datasource}{numberofclasses}{threedigitdatasetversion}.zip, where {datasource} is the source of the original images (for example, NAIP, Landsat 8, Sentinel 2), {numberofclasses} is the number of classes used to annotate the images, and {threedigitdatasetversion} is the three-digit code corresponding to the dataset version (in other words, 001 is version 1). Each zipped folder contains a collection of NPZ format files, each of which corresponds to an individual image. An individual NPZ file is named after the image that it represents and contains (1) a CSV file with detail information for every image in the zip folder and (2) a collection of the following NPY files: orig_image.npy (original input image unedited), image.npy (original input image after color balancing and normalization), classes.npy (list of classes annotated and present in the labelled image), doodles.npy (integer image of all image annotations), color_doodles.npy (color image of doodles.npy), label.npy (labelled image created from the classes present in the annotations), and settings.npy (annotation and machine learning settings used to generate the labelled image from annotations). All NPZ files can be extracted using the utilities available in Doodler (Buscombe, 2022). A merged CSV file containing detail information on the complete imagery collection is available at the top level of this data release, details of which are available in the Entity and Attribute section of this metadata file.

This dataset features over 15,000,000 high-quality images sourced from photographers worldwide. Designed to support AI and machine learning applications, it provides a diverse and richly annotated collection of imagery.

Key Features: 1. Comprehensive Metadata: the dataset includes full EXIF data, detailing camera settings such as aperture, ISO, shutter speed, and focal length. Additionally, each image is pre-annotated with object and scene detection metadata, making it ideal for tasks like classification, detection, and segmentation. Popularity metrics, derived from engagement on our proprietary platform, are also included.

1. Unique Sourcing Capabilities: the images are collected through a proprietary gamified platform for photographers. Competitions focused on flower photography ensure fresh, relevant, and high-quality submissions. Custom datasets can be sourced on-demand within 72 hours, allowing for specific requirements such as particular flower species or geographic regions to be met efficiently.

2. Global Diversity: photographs have been sourced from contributors in over 100 countries, ensuring a vast array of flower species, colors, and environmental settings. The images feature varied contexts, including natural habitats, gardens, bouquets, and urban landscapes, providing an unparalleled level of diversity.

3. High-Quality Imagery: the dataset includes images with resolutions ranging from standard to high-definition to meet the needs of various projects. Both professional and amateur photography styles are represented, offering a mix of artistic and practical perspectives suitable for a variety of applications.

4. Popularity Scores Each image is assigned a popularity score based on its performance in GuruShots competitions. This unique metric reflects how well the image resonates with a global audience, offering an additional layer of insight for AI models focused on user preferences or engagement trends.

5. I-Ready Design: this dataset is optimized for AI applications, making it ideal for training models in tasks such as image recognition, classification, and segmentation. It is compatible with a wide range of machine learning frameworks and workflows, ensuring seamless integration into your projects.

6. Licensing & Compliance: the dataset complies fully with data privacy regulations and offers transparent licensing for both commercial and academic use.

Use Cases 1. Training AI systems for plant recognition and classification. 2. Enhancing agricultural AI models for plant health assessment and species identification. 3. Building datasets for educational tools and augmented reality applications. 4. Supporting biodiversity and conservation research through AI-powered analysis.

This dataset offers a comprehensive, diverse, and high-quality resource for training AI and ML models, tailored to deliver exceptional performance for your projects. Customizations are available to suit specific project needs. Contact us to learn more!

• Check out the file ManyTypes4PyDataset.spec for repositories URL and their commit SHA. The dataset is gathered on Sep. 17th 2020.
• The dataset has more 5.4K Python repositories that are hosted on GitHub.
• It contains more than 1.1M type annotations.
• Please note that this is the first version of the dataset. In the second version, we will provide processed Python projects in JSON files that contain relevant features and hints for ML-based type inference task.

THIS ARTICLE USES WORDS OR LANGUAGE THAT IS CONSIDERED PROFANE, VULGAR, OR OFFENSIVE BY SOME READERS.Different types of abusive content such as offensive language, hate speech, aggression, etc. have become prevalent in social media and many efforts have been dedicated to automatically detect this phenomenon in different resource-rich languages such as English. This is mainly due to the comparative lack of annotated data related to offensive language in low-resource languages, especially the ones spoken in Asian countries. To reduce the vulnerability among social media users from these regions, it is crucial to address the problem of offensive language in such low-resource languages. Hence, we present a new corpus of Persian offensive language consisting of 6,000 out of 520,000 randomly sampled micro-blog posts from X (Twitter) to deal with offensive language detection in Persian as a low-resource language in this area. We introduce a method for creating the corpus and annotating it according to the annotation practices of recent efforts for some benchmark datasets in other languages which results in categorizing offensive language and the target of offense as well. We perform extensive experiments with three classifiers in different levels of annotation with a number of classical Machine Learning (ML), Deep learning (DL), and transformer-based neural networks including monolingual and multilingual pre-trained language models. Furthermore, we propose an ensemble model integrating the aforementioned models to boost the performance of our offensive language detection task. Initial results on single models indicate that SVM trained on character or word n-grams are the best performing models accompanying monolingual transformer-based pre-trained language model ParsBERT in identifying offensive vs non-offensive content, targeted vs untargeted offense, and offensive towards individual or group. In addition, the stacking ensemble model outperforms the single models by a substantial margin, obtaining 5% respective macro F1-score improvement for three levels of annotation.