The Portuguese Association of Data Classification and Analysis (CLAD) and the Escola Superior de Tecnologia e Gestão of the Instituto Politécnico de Viana do Castelo (ESTG — IPVC) are pleased to announce the XXX Conference on Data Classification and Analysis (JOCLAD2023), which will take place in person from the 20th to the 22nd of April 2023, in Viana do Castelo, Portugal.

This annual conference is aimed at professors, researchers, students and other users that share interests in the area of Classification and Data Analysis, and its main objectives are:
- Promote, support, develop and disseminate scientific research in the field of data science;
- Promote scientific collaboration and exchange in the area of data science between researchers, companies and other organizations;
- Offer training in the area of data science.

Proposals for communications are welcomed – in oral or poster format – in all areas of Classification and Data Analysis, including but not limited to:

Theory and Methods:
- Algorithms and optimization
- Sampling
- Classificatory analysis
- Symbolic data analysis
- Textual data analysis and natural language / Text mining
- Experience analysis
- Social network analysis
- Survival analysis
- Exploratory data analysis
- Data analysis applications
- Machine learning and pattern recognition
- Databases and information management
- Classification, discrimination and clustering
- Quality control
- Data mining and business intelligence
- Deep learning
- Models with latent variables
- Mixture models
- Fuzzy models and neural networks
- Models for spatial data
- Experiment planning
- Regression and generalized linear models
- Time series/longitudinal models
- Data visualization

Applications:
- Computation sciences
- Education sciences
- Natural sciences
- Management sciences
- Medical sciences
- Environmental sciences
- Exact and Engineering sciences
- Social sciences
- Demography and Actuarial sciences
- Economics and Finance
- Official statistics
- Market research and Public opinion studies

IMPORTANT DATES:
Deadline for abstract submission: February 7th
Communication of the decision by the Scientific Committee: February 28th
Deadline for a corrected version submission: March 7th
Registration: March 14th