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One of the main problems that emerges in the classic approach to semantics is the difficulty in acquisition and maintenance of ontologies and semantic annotations. On the other hand, the Internet explosion and the massive diffusion of…

Artificial Intelligence · Computer Science 2017-01-12 Valentina Franzoni

Reasoning-augmented search agents, such as Search-R1, are trained to reason, search, and generate the final answer iteratively. Nevertheless, due to their limited capabilities in reasoning and search, their performance on multi-hop QA…

Computation and Language · Computer Science 2025-10-14 Shu Zhao , Tan Yu , Anbang Xu

Semantic caching enhances the efficiency of large language model (LLM) systems by identifying semantically similar queries, storing responses once, and serving them for subsequent equivalent requests. However, existing semantic caching…

Machine Learning · Computer Science 2025-07-10 Shervin Ghaffari , Zohre Bahranifard , Mohammad Akbari

In recent years, the importance of research data and the need to archive and to share it in the scientific community have increased enormously. This introduces a whole new set of challenges for digital libraries. In the social sciences…

Digital Libraries · Computer Science 2017-05-03 Nadine Dulisch , Andreas Oskar Kempf , Philipp Schaer

Information-seeking conversation systems are increasingly popular in real-world applications, especially for e-commerce companies. To retrieve appropriate responses for users, it is necessary to compute the matching degrees between…

Computation and Language · Computer Science 2022-11-03 Haojie Pan , Cen Chen , Chengyu Wang , Minghui Qiu , Liu Yang , Feng Ji , Jun Huang

Vector similarity search is becoming increasingly important for data science pipelines, particularly in Retrieval-Augmented Generation (RAG), where it enhances large language model inference by enabling efficient retrieval of relevant…

Databases · Computer Science 2026-03-31 Hyunjoon Kim , Chaerim Lim , Hyeonjun An , Rathijit Sen , Kwanghyun Park

Existing open-domain question answering (QA) models are not suitable for real-time usage because they need to process several long documents on-demand for every input query. In this paper, we introduce the query-agnostic indexable…

Computation and Language · Computer Science 2019-06-17 Minjoon Seo , Jinhyuk Lee , Tom Kwiatkowski , Ankur P. Parikh , Ali Farhadi , Hannaneh Hajishirzi

We present GenEx, a generative model to explain search results to users beyond just showing matches between query and document words. Adding GenEx explanations to search results greatly impacts user satisfaction and search performance.…

Information Retrieval · Computer Science 2021-11-03 Razieh Rahimi , Youngwoo Kim , Hamed Zamani , James Allan

The exponential growth of AI in science necessitates efficient and scalable solutions for retrieving and preserving research information. Here, we present a tool for the development of a customized question-answer (QA) dataset, called…

Information Retrieval · Computer Science 2025-02-25 Qiming Liu , Zhongzheng Niu , Siting Liu , Mao Tian

The integration of Large Language Models (LLMs) into data analytics has unlocked powerful capabilities for reasoning over bulk structured and unstructured data. However, existing systems typically rely on either DataFrame primitives, which…

Databases · Computer Science 2026-03-13 Kangkang Qi , Dongyang Xie , Wenbo Li , Hao Zhang , Yuanyuan Zhu , Jeffrey Xu Yu , Kangfei Zhao

Semantic similarity measures are a key component in natural language processing tasks such as document analysis, requirement matching, and user input interpretation. However, the performance of individual measures varies considerably across…

Computation and Language · Computer Science 2025-04-28 Jorge Martinez-Gil

The rapid rise of large language models has shifted user search behavior from discrete keywords to natural-language, multi-constraint queries--a shift existing e-commerce search architectures struggle to accommodate. Users face a dilemma:…

Information Retrieval · Computer Science 2026-05-13 Lei Wang , Jinhang Wu , Zhibin Wang , Biye Li

Post-training has become the dominant recipe for turning a language model into a competent search-augmented reasoning agent. A line of recent work pushes its performance further by adding elaborate machinery on top of this standard…

Artificial Intelligence · Computer Science 2026-05-27 Zihan Liang , Yufei Ma , Ben Chen , Zhipeng Qian , Xuxin Zhang , Huangyu Dai , Lingtao Mao

One of the challenges in large-scale information retrieval (IR) is to develop fine-grained and domain-specific methods to answer natural language questions. Despite the availability of numerous sources and datasets for answer retrieval,…

Computation and Language · Computer Science 2019-11-28 Asma Ben Abacha , Dina Demner-Fushman

Using large language models (LMs) for query or document expansion can improve generalization in information retrieval. However, it is unknown whether these techniques are universally beneficial or only effective in specific settings, such…

Information Retrieval · Computer Science 2024-02-28 Orion Weller , Kyle Lo , David Wadden , Dawn Lawrie , Benjamin Van Durme , Arman Cohan , Luca Soldaini

Natural Language Query (NLQ) allows users to search and interact with information systems using plain, human language instead of structured query syntax. This paper presents a technical blueprint on the design of a modern NLQ system…

Information Retrieval · Computer Science 2026-01-27 Lalit Pant , Shivang Nagar

We focus on Text-to-SQL semantic parsing from the perspective of retrieval-augmented generation. Motivated by challenges related to the size of commercial database schemata and the deployability of business intelligence solutions, we…

Computation and Language · Computer Science 2024-11-05 Zhili Shen , Pavlos Vougiouklis , Chenxin Diao , Kaustubh Vyas , Yuanyi Ji , Jeff Z. Pan

Query rewrite transforms SQL queries into semantically equivalent forms that run more efficiently. Existing approaches mainly rely on predefined rewrite rules, but they handle a limited subset of queries and can cause performance…

Databases · Computer Science 2026-01-05 Yuyang Song , Hanxu Yan , Jiale Lao , Yibo Wang , Yufei Li , Yuanchun Zhou , Jianguo Wang , Mingjie Tang

Augmenting large language models (LLMs) with browsing tools substantially improves their potential as deep search agents to solve complex, real-world tasks. Yet, open LLMs still perform poorly in such settings due to limited long-horizon…

Computation and Language · Computer Science 2025-10-15 Rui Lu , Zhenyu Hou , Zihan Wang , Hanchen Zhang , Xiao Liu , Yujiang Li , Shi Feng , Jie Tang , Yuxiao Dong

This paper presents the ReCO, a human-curated ChineseReading Comprehension dataset on Opinion. The questions in ReCO are opinion based queries issued to the commercial search engine. The passages are provided by the crowdworkers who extract…

Computation and Language · Computer Science 2020-06-23 BingningWang , Ting Yao , Qi Zhang , Jingfang Xu , Xiaochuan Wang
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