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Next point-of-interest (POI) recommendation requires modeling user mobility as a spatiotemporal sequence, where different behavioral factors may evolve at different temporal and spatial scales. Most existing methods compress a user's…

Information Retrieval · Computer Science 2026-04-24 Zhenyu Yu , Chunlei Meng , Yangchen Zeng , Mohd Yamani Idna Idris , Shuigeng Zhou

Neural information retrieval systems typically use a cascading pipeline, in which a first-stage model retrieves a candidate set of documents and one or more subsequent stages re-rank this set using contextualized language models such as…

Information Retrieval · Computer Science 2021-04-27 Antonio Mallia , Omar Khattab , Nicola Tonellotto , Torsten Suel

In this paper, we introduce the AI Search Paradigm, a comprehensive blueprint for next-generation search systems capable of emulating human information processing and decision-making. The paradigm employs a modular architecture of four…

Text retrieval is a long-standing research topic on information seeking, where a system is required to return relevant information resources to user's queries in natural language. From classic retrieval methods to learning-based ranking…

Information Retrieval · Computer Science 2022-11-29 Wayne Xin Zhao , Jing Liu , Ruiyang Ren , Ji-Rong Wen

Developers often wonder how to implement a certain functionality (e.g., how to parse XML files) using APIs. Obtaining an API usage sequence based on an API-related natural language query is very helpful in this regard. Given a query,…

Software Engineering · Computer Science 2017-07-17 Xiaodong Gu , Hongyu Zhang , Dongmei Zhang , Sunghun Kim

We introduce a novel latent vector space model that jointly learns the latent representations of words, e-commerce products and a mapping between the two without the need for explicit annotations. The power of the model lies in its ability…

Information Retrieval · Computer Science 2016-08-26 Christophe Van Gysel , Maarten de Rijke , Evangelos Kanoulas

Search systems are often focused on providing relevant results for the "now", assuming both corpora and user needs that focus on the present. However, many corpora today reflect significant longitudinal collections ranging from 20 years of…

Computation and Language · Computer Science 2017-08-01 Guy D. Rosin , Eytan Adar , Kira Radinsky

In this work, we consider the problem of searching people in an unconstrained environment, with natural language descriptions. Specifically, we study how to systematically design an algorithm to effectively acquire descriptions from humans.…

Robotics · Computer Science 2020-02-21 Vikram Shree , Wei-Lun Chao , Mark Campbell

POI recommendation is practically important to facilitate various Location-Based Social Network services, and has attracted rising research attention recently. Existing works generally assume the available POI check-ins reported by users…

Information Retrieval · Computer Science 2023-11-02 Jiangnan Xia , Yu Yang , Senzhang Wang , Hongzhi Yin , Jiannong Cao , Philip S. Yu

For ambiguous queries, conventional retrieval systems are bound by two conflicting goals. On the one hand, they should diversify and strive to present results for as many query intents as possible. On the other hand, they should provide…

Information Retrieval · Computer Science 2015-03-19 Karthik Raman , Thorsten Joachims , Pannaga Shivaswamy

In location-based social networks (LBSNs), users sense urban point-of-interest (PoI) information in the vicinity and share such information with friends in online social networks. Given users' limited social connections and severe lags in…

Social and Information Networks · Computer Science 2025-05-19 Songhua Li , Lingjie Duan

This paper describes a compact and effective model for low-latency passage retrieval in conversational search based on learned dense representations. Prior to our work, the state-of-the-art approach uses a multi-stage pipeline comprising…

Information Retrieval · Computer Science 2021-11-30 Sheng-Chieh Lin , Jheng-Hong Yang , Jimmy Lin

Deep neural network models represent the state-of-the-art methodologies for natural language processing. Here we build on top of these methodologies to incorporate temporal information and model how to review data changes with time.…

Machine Learning · Computer Science 2020-12-11 Kostadin Cvejoski , Ramses J. Sanchez , Bogdan Georgiev , Christian Bauckhage , Cesar Ojeda

Mathematical expressions (MEs) have complex two-dimensional structures in which symbols can be present at any nested depth like superscripts, subscripts, above, below etc. As MEs are represented using LaTeX format, several text retrieval…

Information Retrieval · Computer Science 2025-11-04 Pavan Kumar Perepu

Result relevance prediction is an essential task of e-commerce search engines to boost the utility of search engines and ensure smooth user experience. The last few years eyewitnessed a flurry of research on the use of Transformer-style…

Information Retrieval · Computer Science 2021-01-14 Ziyang Liu , Zhaomeng Cheng , Yunjiang Jiang , Yue Shang , Wei Xiong , Sulong Xu , Bo Long , Di Jin

Matching two texts is a fundamental problem in many natural language processing tasks. An effective way is to extract meaningful matching patterns from words, phrases, and sentences to produce the matching score. Inspired by the success of…

Computation and Language · Computer Science 2016-02-23 Liang Pang , Yanyan Lan , Jiafeng Guo , Jun Xu , Shengxian Wan , Xueqi Cheng

Establishing dense semantic correspondences between object instances remains a challenging problem due to background clutter, significant scale and pose differences, and large intra-class variations. In this paper, we address weakly…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Yun-Chun Chen , Po-Hsiang Huang , Li-Yu Yu , Jia-Bin Huang , Ming-Hsuan Yang , Yen-Yu Lin

The Peer-to-Peer systems (P2P) were led these last years as the major technology of access upon various resources on Internet. These systems build a cluster witch contains a very large number of peers. As the result the selection of peers…

Networking and Internet Architecture · Computer Science 2021-02-11 Taoufik Yeferny , Khedija Arour

Implicit discourse relation recognition is a challenging task as the relation prediction without explicit connectives in discourse parsing needs understanding of text spans and cannot be easily derived from surface features from the input…

Computation and Language · Computer Science 2018-07-17 Hongxiao Bai , Hai Zhao

While modern language models and their inner workings are incredibly complex, recent work (Golowich, Liu & Shetty; 2025) has proposed a simple and potentially tractable abstraction for them through the observation that empirically, these…

Machine Learning · Computer Science 2025-12-11 Noah Golowich , Allen Liu , Abhishek Shetty