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Jifan Yu

24 accepted papers

2025

CoT-based Synthesizer: Enhancing LLM Performance through Answer Synthesis

ACL 2025long

Current inference scaling methods, such as Self-consistency and Best-of-N, have proven effective in improving the accuracy of LLMs on complex reasoning tasks. However, these methods rely heavily on the quality of candidate responses and are unable to produce correct answers when all candidates are i…

2025

Dynamic Scaling of Unit Tests for Code Reward Modeling

ACL 2025long

Current large language models (LLMs) often struggle to produce accurate responses on the first attempt for complex reasoning tasks like code generation. Prior research tackles this challenge by generating multiple candidate solutions and validating them with LLM-generated unit tests. The execution r…

Cited by 0SourcePDFScholar
2025

Simulating Classroom Education with LLM-Empowered Agents

NAACL 2025long

Large language models (LLMs) have been applied across various intelligent educational tasks to assist teaching. While preliminary studies have focused on task-specific, independent LLM-empowered agents, the potential of LLMs within a multi-agent collaborative framework for classroom simulation with…

2025

TableLLM: Enabling Tabular Data Manipulation by LLMs in Real Office Usage Scenarios

ACL 2025finding

We introduce TableLLM, a robust large language model (LLM) with 8 billion parameters, purpose-built for proficiently handling tabular data manipulation tasks, whether they are embedded within documents or spreadsheets, catering to real-world office scenarios. We propose a distant supervision method…

2024

A Cause-Effect Look at Alleviating Hallucination of Knowledge-grounded Dialogue Generation

COLING 2024main

Empowered by the large-scale pretrained language models, existing dialogue systems have demonstrated impressive performance conducting fluent and natural-sounding conversations. However, they are still plagued by the <b>hallucination</b> problem, causing unpredictable factual errors in the generated…

2024

CharacterGLM: Customizing Social Characters with Large Language Models

EMNLP 2024industry

Character-based dialogue (CharacterDial) has become essential in the industry (e.g., Character.AI), enabling users to freely customize social characters for social interactions. However, the generalizability and adaptability across various conversational scenarios inherent in customizing social char…

Cited by 0SourcePDFScholar
2024

Evaluating Generative Language Models in Information Extraction as Subjective Question Correction

COLING 2024main

Modern Large Language Models (LLMs) have showcased remarkable prowess in various tasks necessitating sophisticated cognitive behaviors. Nevertheless, a paradoxical performance discrepancy is observed, where these models underperform in seemingly elementary tasks like relation extraction and event ex…

2024

KoLA: Carefully Benchmarking World Knowledge of Large Language Models

ICLR 2024poster

The unprecedented performance of large language models (LLMs) necessitates improvements in evaluations. Rather than merely exploring the breadth of LLM abilities, we believe meticulous and thoughtful designs are essential to thorough, unbiased, and applicable evaluations. Given the importance of wor…

2024

LM-Interview: An Easy-to-use Smart Interviewer System via Knowledge-guided Language Model Exploitation

EMNLP 2024system demonstrations

Semi-structured interviews are a crucial method of data acquisition in qualitative research. Typically controlled by the interviewer, the process progresses through a question-and-answer format, aimed at eliciting information from the interviewee. However, interviews are highly time-consuming and de…

2024

SpreadsheetBench: Towards Challenging Real World Spreadsheet Manipulation

NeurIPS 2024spotlight

We introduce SpreadsheetBench, a challenging spreadsheet manipulation benchmark exclusively derived from real-world scenarios, designed to immerse current large language models (LLMs) in the actual workflow of spreadsheet users. Unlike existing benchmarks that rely on synthesized queries and simpli…

Cited by 5SourcePDFScholar
2024

Transferable and Efficient Non-Factual Content Detection via Probe Training with Offline Consistency Checking

ACL 2024long

This paper proposes PiNose, which trains a probing model on offline self-consistency checking results, thereby circumventing the need for human-annotated data and achieving transferability across diverse data distributions. As the consistency check process is offline, PiNose reduces the computationa…

2024

Untangle the KNOT: Interweaving Conflicting Knowledge and Reasoning Skills in Large Language Models

COLING 2024main

Providing knowledge documents for large language models (LLMs) has emerged as a promising solution to update the static knowledge inherent in their parameters. However, knowledge in the document may conflict with the memory of LLMs due to outdated or incorrect knowledge in the LLMs’ parameters. This…

2024

WaterBench: Towards Holistic Evaluation of Watermarks for Large Language Models

ACL 2024long

To mitigate the potential misuse of large language models (LLMs), recent research has developed watermarking algorithms, which restrict the generation process to leave an invisible trace for watermark detection. Due to the two-stage nature of the task, most studies evaluate the generation and detect…

2023

Benchmarking Foundation Models with Language-Model-as-an-Examiner

NeurIPS 2023poster

Numerous benchmarks have been established to assess the performance of foundation models on open-ended question answering, which serves as a comprehensive test of a model's ability to understand and generate language in a manner similar to humans. Most of these works focus on proposing new datasets,…

Cited by 141SourcePDFScholar
2023

Distantly Supervised Course Concept Extraction in MOOCs with Academic Discipline

ACL 2023long

With the rapid growth of Massive Open Online Courses (MOOCs), it is expensive and time-consuming to extract high-quality knowledgeable concepts taught in the course by human effort to help learners grasp the essence of the course. In this paper, we propose to automatically extract course concepts us…

2023

Exploring the Cognitive Knowledge Structure of Large Language Models: An Educational Diagnostic Assessment Approach

EMNLP 2023short findings

Large Language Models (LLMs) have not only exhibited exceptional performance across various tasks, but also demonstrated sparks of intelligence. Recent studies have focused on assessing their capabilities on human exams and revealed their impressive competence in different domains. However, cognitiv…

Cited by 0SourceScholar
2023

FFAEval: Evaluating Dialogue System via Free-For-All Ranking

EMNLP 2023long findings

Evaluating open-domain dialogue systems is currently an open question. Automatic evaluation metrics have shown poor correlation with human assessment in dialogue generation tasks. Human evaluation, which involves annotators for multi-dimension scoring, is trustworthy but time-consuming. In this wor…

Cited by 0SourceScholar
2023

KoRC: Knowledge Oriented Reading Comprehension Benchmark for Deep Text Understanding

ACL 2023findings

Deep text understanding, which requires the connections between a given document and prior knowledge beyond its text, has been highlighted by many benchmarks in recent years. However, these benchmarks have encountered two major limitations. On the one hand, most of them require human annotation of k…

2023

Learn to Not Link: Exploring NIL Prediction in Entity Linking

ACL 2023findings

Entity linking models have achieved significant success via utilizing pretrained language models to capture semantic features. However, the NIL prediction problem, which aims to identify mentions without a corresponding entity in the knowledge base, has received insufficient attention. We categorize…

2023

Preserving Knowledge Invariance: Rethinking Robustness Evaluation of Open Information Extraction

EMNLP 2023long main

The robustness to distribution changes ensures that NLP models can be successfully applied in the realistic world, especially for information extraction tasks. However, most prior evaluation benchmarks have been devoted to validating pairwise matching correctness, ignoring the crucial validation of…

Cited by 0SourcecodeScholar
2022

Program Transfer for Answering Complex Questions over Knowledge Bases

ACL 2022long

Program induction for answering complex questions over knowledge bases (KBs) aims to decompose a question into a multi-step program, whose execution against the KB produces the final answer. Learning to induce programs relies on a large number of parallel question-program pairs for the given KB. How…

2022

Subgraph Retrieval Enhanced Model for Multi-hop Knowledge Base Question Answering

ACL 2022long

Recent works on knowledge base question answering (KBQA) retrieve subgraphs for easier reasoning. The desired subgraph is crucial as a small one may exclude the answer but a large one might introduce more noises. However, the existing retrieval is either heuristic or interwoven with the reasoning, c…

2022

UPER: Boosting Multi-Document Summarization with an Unsupervised Prompt-based Extractor

COLING 2022main

Multi-Document Summarization (MDS) commonly employs the 2-stage extract-then-abstract paradigm, which first extracts a relatively short meta-document, then feeds it into the deep neural networks to generate an abstract. Previous work usually takes the ROUGE score as the label for training a scoring…

2021

Interpretable and Low-Resource Entity Matching via Decoupling Feature Learning from Decision Making

ACL 2021long

Entity Matching (EM) aims at recognizing entity records that denote the same real-world object. Neural EM models learn vector representation of entity descriptions and match entities end-to-end. Though robust, these methods require many annotated resources for training, and lack of interpretability.…