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We introduce and address the problem of ad hoc table retrieval: answering a keyword query with a ranked list of tables. This task is not only interesting on its own account, but is also being used as a core component in many other…

信息检索 · 计算机科学 2018-03-09 Shuo Zhang , Krisztian Balog

Answering real-world complex queries, such as complex product search, often requires accurate retrieval from semi-structured knowledge bases that involve blend of unstructured (e.g., textual descriptions of products) and structured (e.g.,…

Search and information retrieval systems are becoming more expressive in interpreting user queries beyond the traditional weighted bag-of-words model of document retrieval. For example, searching for a flight status or a game score returns…

人机交互 · 计算机科学 2023-08-01 Vidya Setlur , Andriy Kanyuka , Arjun Srinivasan

Large language models (LLMs) have emerged as a widely-used tool for information seeking, but their generated outputs are prone to hallucination. In this work, our aim is to allow LLMs to generate text with citations, improving their factual…

计算与语言 · 计算机科学 2023-11-01 Tianyu Gao , Howard Yen , Jiatong Yu , Danqi Chen

Large Language Models (LLMs) are increasingly used to recommend mobile applications through natural language prompts, offering a flexible alternative to keyword-based app store search. Yet, the reasoning behind these recommendations remains…

信息检索 · 计算机科学 2025-10-22 Quim Motger , Xavier Franch , Vincenzo Gervasi , Jordi Marco

Open-domain Timeline Summarization (TLS) is crucial for monitoring the evolution of news topics. To identify changes in news topics, existing methods typically employ general Large Language Models (LLMs) to summarize relevant timestamps…

计算与语言 · 计算机科学 2025-06-30 Chuanrui Hu , Wei Hu , Penghang Yu , Hua Zhang , Bing-Kun Bao

In recent years, the surge in unstructured data analysis, facilitated by advancements in Machine Learning (ML), has prompted diverse approaches for handling images, text documents, and videos. Analysts, leveraging ML models, can extract…

数据库 · 计算机科学 2024-04-08 Akash Mittal , Anshul Bheemreddy , Huili Tao

Open Information Extraction (OIE) systems seek to compress the factual propositions of a sentence into a series of n-ary tuples. These tuples are useful for downstream tasks in natural language processing like knowledge base creation,…

计算与语言 · 计算机科学 2021-01-28 Jacob Solawetz , Stefan Larson

Existing query languages for data discovery exhibit system-driven designs that emphasize database features and functionality over user needs. We propose a re-prioritization of the client through an introduction of a language-driven approach…

数据库 · 计算机科学 2025-08-12 Andrew Kang , Sainyam Galhotra

There has recently been considerable interest in incorporating information retrieval into large language models (LLMs). Retrieval from a dynamically expanding external corpus of text allows a model to incorporate current events and can be…

计算与语言 · 计算机科学 2025-03-26 Yanhong Li , David Yunis , David McAllester , Jiawei Zhou

Large language models (LLMs) are increasingly expected to go beyond simple factual queries toward Deep Research-tasks that require decomposing questions into sub-problems, coordinating multi-step reasoning, and synthesizing evidence from…

计算与语言 · 计算机科学 2025-09-03 Ziyi Xia , Kun Luo , Hongjin Qian , Zheng Liu

With the growing success of Large Language models (LLMs) in information-seeking scenarios, search engines are now adopting generative approaches to provide answers along with in-line citations as attribution. While existing work focuses…

Large Language Model (LLM)-based search agents have shown remarkable capabilities in solving complex tasks by dynamically decomposing problems and addressing them through interleaved reasoning and retrieval. However, this interleaved…

人工智能 · 计算机科学 2025-05-20 Tiannuo Yang , Zebin Yao , Bowen Jin , Lixiao Cui , Yusen Li , Gang Wang , Xiaoguang Liu

The rapid advancement of Large Language Models (LLMs) has led to a multitude of application opportunities. One traditional task for Information Retrieval systems is the summarization and classification of texts, both of which are important…

计算与语言 · 计算机科学 2025-02-25 Gautam Kishore Shahi , Oliver Hummel

Full-text search engines are important tools for information retrieval. In a proximity full-text search, a document is relevant if it contains query terms near each other, especially if the query terms are frequently occurring words. For…

信息检索 · 计算机科学 2019-07-11 Alexander B. Veretennikov

Large language models (LLMs) have emerged as a new paradigm for Text-to-SQL task. However, the absence of a systematical benchmark inhibits the development of designing effective, efficient and economic LLM-based Text-to-SQL solutions. To…

数据库 · 计算机科学 2023-11-21 Dawei Gao , Haibin Wang , Yaliang Li , Xiuyu Sun , Yichen Qian , Bolin Ding , Jingren Zhou

Large Language Models (LLMs) exhibit remarkable generative capabilities, enabling the generation of valuable information. Despite these advancements, previous research found that LLMs sometimes struggle with adhering to specific constraints…

人工智能 · 计算机科学 2024-02-27 Kaiwen Wei , Jingyuan Zhang , Hongzhi Zhang , Fuzheng Zhang , Di Zhang , Li Jin , Yue Yu

Tabular data synthesis is crucial in machine learning, yet existing general methods-primarily based on statistical or deep learning models-are highly data-dependent and often fall short in recommender systems. This limitation arises from…

信息检索 · 计算机科学 2025-02-12 Jingtong Gao , Zhaocheng Du , Xiaopeng Li , Yichao Wang , Xiangyang Li , Huifeng Guo , Ruiming Tang , Xiangyu Zhao

In ontology-mediated querying, description logic (DL) ontologies are used to enrich incomplete data with domain knowledge which results in more complete answers to queries. However, the evaluation of ontology-mediated queries (OMQs) over…

数据库 · 计算机科学 2020-07-30 Pablo Barcelo , Cristina Feier , Carsten Lutz , Andreas Pieris

Indexes are the best apposite choice for quickly retrieving the records. This is nothing but cutting down the number of Disk IO. Instead of scanning the complete table for the results, we can decrease the number of IO's or page fetches…

数据库 · 计算机科学 2019-03-21 Sourav Mukherjee