March 25, 2025

Introducing Tessar

Advanced neural table reasoning with sophisticated SQL execution capabilities.

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Tessar (Textual SQL Analysis and Reasoning) is an advanced table reasoning model developed by SVECTOR, building upon groundbreaking research and pushing the boundaries of neural table understanding. This sophisticated model excels in table-based question answering with remarkable precision.

Model Architecture

Tessar is constructed using the BART architecture, featuring a bidirectional encoder and an autoregressive decoder. This design allows Tessar to capture intricate contextual relationships within tabular data and generate accurate, contextually relevant answers through innovative neural SQL execution capabilities.

Key Features

  • Advanced Neural SQL Execution: Sophisticated query interpretation and execution capabilities
  • State-of-the-art Performance: Exceptional results on complex table question answering benchmarks
  • Robust Query Handling: Effective processing of nuanced and multi-step queries
  • WikiTableQuestions Training: Fine-tuned on comprehensive table reasoning dataset

Intended Uses

Tessar is particularly powerful for solving complex table-based questions across various domains. The model can effectively address queries such as identifying the last title produced in a dataset, calculating differences in comparative metrics, determining entities with the most significant impact in given contexts, and finding first and last entries in specific columns.

Performance Highlights

  • Exceptional accuracy on complex table reasoning tasks
  • Robust handling of multi-step and contextual queries
  • State-of-the-art performance on WikiTableQuestions dataset
  • Superior neural SQL execution compared to traditional methods

Benchmark Performance

WikiTableQuestionsTabFactSQAHiTab0255075100
  • TAPAS
  • TaBERT
  • TAPEX
  • Tessar

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