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Xinxi Lyu

7 accepted papers

2026

DS SERVE: A Framework for Efficient and Scalable Neural Retrieval

AAAI 2026technical

We present DS SERVE, a framework that transforms large-scale text datasets—comprising half a trillion tokens—into a high-performance neural retrieval system. DS SERVE offers both a web interface and API endpoints, achieving low latency with modest memory overhead on a single node. The framework also

Cited by 0SourcePDFScholar
2026

Frustratingly Simple Retrieval Improves Challenging, Reasoning-Intensive Benchmarks

ICLR 2026poster

Retrieval augmentation has primarily been studied in limited settings, such as factoid question answering; more challenging, reasoning-intensive benchmarks have seen limited success from minimal RAG. In this work, we challenge this prevailing view on a set of established, reasoning-intensive benchma…

Cited by 0SourceScholar
2024

Dolma: an Open Corpus of Three Trillion Tokens for Language Model Pretraining Research

ACL 2024long

Information about pretraining corpora used to train the current best-performing language models is seldom discussed: commercial models rarely detail their data, and even open models are often released without accompanying training data or recipes to reproduce them. As a result, it is challenging to…

2023

FActScore: Fine-grained Atomic Evaluation of Factual Precision in Long Form Text Generation

EMNLP 2023long main

Evaluating the factuality of long-form text generated by large language models (LMs) is non-trivial because (1) generations often contain a mixture of supported and unsupported pieces of information, making binary judgments of quality inadequate, and (2) human evaluation is time-consuming and costly…

Cited by 0SourcecodeScholar
2023

Z-ICL: Zero-Shot In-Context Learning with Pseudo-Demonstrations

ACL 2023long

Although large language models can be prompted for both zero- and few-shot learning, performance drops significantly when no demonstrations are available. In this paper, we introduce Z-ICL, a new zero-shot method that closes the gap by constructing pseudo-demonstrations for a given test input using…

2022

Prompt Waywardness: The Curious Case of Discretized Interpretation of Continuous Prompts

NAACL 2022long

Fine-tuning continuous prompts for target tasks has recently emerged as a compact alternative to full model fine-tuning. Motivated by these promising results, we investigate the feasibility of extracting a discrete (textual) interpretation of continuous prompts that is faithful to the problem they s…

2022

Rethinking the Role of Demonstrations: What Makes In-Context Learning Work?

EMNLP 2022main

Large language models (LMs) are able to in-context learn—perform a new task via inference alone by conditioning on a few input-label pairs (demonstrations) and making predictions for new inputs. However, there has been little understanding of how the model learns and which aspects of the demonstrati…