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Chris Tanner

7 accepted papers

2025

BLEUBERI: BLEU is a surprisingly effective reward for instruction following

NeurIPS 2025poster

Reward models are central to aligning LLMs with human preferences, but they are costly to train, requiring large-scale human-labeled preference data and powerful pretrained LLM backbones. Meanwhile, the increasing availability of high-quality synthetic instruction-following datasets raises the quest…

Cited by 0SourcecodeScholar
2025

Language Model Probabilities are Not Calibrated in Numeric Contexts

ACL 2025long

Some statements have one well-defined continuation (e.g., “the Eiffel Tower is in [Paris]"), whereas others have a natural distribution over multiple options (e.g., “the weighted coin flip was [Heads/Tails].") We argue that language model (LM) outputs should capture these natural distributions. Our…

Cited by 0SourcePDFScholar
2024

BizBench: A Quantitative Reasoning Benchmark for Business and Finance

ACL 2024long

Answering questions within business and finance requires reasoning, precision, and a wide-breadth of technical knowledge. Together, these requirements make this domain difficult for large language models (LLMs). We introduce BizBench, a benchmark for evaluating models’ ability to reason about realis…

Cited by 13SourcePDFScholar
2024

DocFinQA: A Long-Context Financial Reasoning Dataset

ACL 2024short

For large language models (LLMs) to be effective in the financial domain – where each decision can have a significant impact – it is necessary to investigate realistic tasks and data. Financial professionals often interact with documents spanning hundreds of pages, but most financial research datase…

Cited by 17SourcePDFScholar
2024

Greed is All You Need: An Evaluation of Tokenizer Inference Methods

ACL 2024short

While subword tokenizers such as BPE and WordPiece are typically used to build vocabularies for NLP models, the method of decoding text into a sequence of tokens from these vocabularies is often left unspecified, or ill-suited to the method in which they were constructed. We provide a controlled ana…

2024

Tokenization Is More Than Compression

EMNLP 2024main

Tokenization is a foundational step in natural language processing (NLP) tasks, bridging raw text and language models. Existing tokenization approaches like Byte-Pair Encoding (BPE) originate from the field of data compression, and it has been suggested that the effectiveness of BPE stems from its a…