SciRepEval: A Multi-Format Benchmark for Scientific Document Representations
Submission Type: Regular Long Paper
Submission Track: Resources and Evaluation
Submission Track 2: Information Retrieval and Text Mining
Keywords: Scientific tasks benchmark, multi task learning, task specific embeddings
TL;DR: 24 Task benchmark for evaluating scientific document embeddings and task-format specific multiple embedding generation with SPECTER2 adapters..
Abstract: Learned representations of scientific documents can serve as valuable input features for downstream tasks without further fine-tuning. However, existing benchmarks for evaluating these representations fail to capture the diversity of relevant tasks. In response, we introduce SciRepEval, the first comprehensive benchmark for training and evaluating scientific document representations. It includes 24 challenging and realistic tasks, 8 of which are new, across four formats: classification, regression, ranking and search. We then use this benchmark to study and improve the generalization ability of scientific document representation models. We show how state-of-the-art models like SPECTER and SciNCL struggle to generalize across the task formats, and that simple multi-task training fails to improve them. However, a new approach that learns multiple embeddings per document, each tailored to a different format, can improve performance. We experiment with task-format-specific control codes and adapters and find they outperform the existing single-embedding state-of-the-art by over 2 points absolute. We release the resulting family of multi-format models, called SPECTER2, for the community to use and build on.
Submission Number: 5182
Loading