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Real-time heuristic search is a popular model of acting and learning in intelligent autonomous agents. Learning real-time search agents improve their performance over time by acquiring and refining a value function guiding the application…

Artificial Intelligence · Computer Science 2007-05-23 Vadim Bulitko

The pre-trained language model (eg, BERT) based deep retrieval models achieved superior performance over lexical retrieval models (eg, BM25) in many passage retrieval tasks. However, limited work has been done to generalize a deep retrieval…

Information Retrieval · Computer Science 2023-02-21 Tao Chen , Mingyang Zhang , Jing Lu , Michael Bendersky , Marc Najork

We present Hybrid Infused Reranking for Passages Retrieval (HYRR), a framework for training rerankers based on a hybrid of BM25 and neural retrieval models. Retrievers based on hybrid models have been shown to outperform both BM25 and…

Computation and Language · Computer Science 2022-12-21 Jing Lu , Keith Hall , Ji Ma , Jianmo Ni

Combinatorial generalization remains a central challenge in Deep Reinforcement Learning (DRL). Classical planning provides a simple yet challenging setting to study this problem through explicit relational descriptions, without requiring…

Artificial Intelligence · Computer Science 2026-05-26 Michael Aichmüller , Yannik Hesse , Hector Geffner

Hybrid search has emerged as an effective strategy to offset the limitations of different matching paradigms, especially in out-of-domain contexts where notable improvements in retrieval quality have been observed. However, existing…

Computation and Language · Computer Science 2024-09-04 Antoine Louis , Gijs van Dijck , Gerasimos Spanakis

In the last decade quantum machine learning has provided fascinating and fundamental improvements to supervised, unsupervised and reinforcement learning. In reinforcement learning, a so-called agent is challenged to solve a task given by…

Quantum Physics · Physics 2022-04-13 Arne Hamann , Sabine Wölk

While billions of non-English speaking users rely on search engines every day, the problem of ad-hoc information retrieval is rarely studied for non-English languages. This is primarily due to a lack of data set that are suitable to train…

Information Retrieval · Computer Science 2020-05-01 Sean MacAvaney , Luca Soldaini , Nazli Goharian

Information retrieval across different languages is an increasingly important challenge in natural language processing. Recent approaches based on multilingual pre-trained language models have achieved remarkable success, yet they often…

Information Retrieval · Computer Science 2024-08-21 Adel Elmahdy , Sheng-Chieh Lin , Amin Ahmad

Search agents have achieved significant advancements in enabling intelligent information retrieval and decision-making within interactive environments. Although reinforcement learning has been employed to train agentic models capable of…

Computation and Language · Computer Science 2025-10-22 Guanzhong He , Zhen Yang , Jinxin Liu , Bin Xu , Lei Hou , Juanzi Li

In recent years, robots and autonomous systems have become increasingly integral to our daily lives, offering solutions to complex problems across various domains. Their application in search and rescue (SAR) operations, however, presents…

Robotics · Computer Science 2024-09-23 Dimitrios Panagopoulos , Adolfo Perrusquia , Weisi Guo

We study contextual search, a generalization of binary search in higher dimensions, which captures settings such as feature-based dynamic pricing. Standard formulations of this problem assume that agents act in accordance with a specific…

Machine Learning · Computer Science 2022-08-09 Akshay Krishnamurthy , Thodoris Lykouris , Chara Podimata , Robert Schapire

Hashing, or learning binary embeddings of data, is frequently used in nearest neighbor retrieval. In this paper, we develop learning to rank formulations for hashing, aimed at directly optimizing ranking-based evaluation metrics such as…

Machine Learning · Statistics 2018-10-11 Kun He , Fatih Cakir , Sarah Adel Bargal , Stan Sclaroff

In both industrial and service domains, a central benefit of the use of robots is their ability to quickly and reliably execute repetitive tasks. However, even relatively simple peg-in-hole tasks are typically subject to stochastic…

Robotics · Computer Science 2023-07-28 Benjamin Alt , Darko Katic , Rainer Jäkel , Michael Beetz

Many recent advances in neural information retrieval models, which predict top-K items given a query, learn directly from a large training set of (query, item) pairs. However, they are often insufficient when there are many previously…

Agentic search has recently emerged as a powerful paradigm, where an agent interleaves multi-step reasoning with on-demand retrieval to solve complex questions. Despite its success, how to design a retriever for agentic search remains…

Information Retrieval · Computer Science 2026-01-22 Wenhan Liu , Xinyu Ma , Yutao Zhu , Yuchen Li , Daiting Shi , Dawei Yin , Zhicheng Dou

This paper presents a non-manual design engineering method based on heuristic search algorithm to search for candidate agents in the solution space which formed by artificial intelligence agents modeled on the base of bionics.Compared with…

Artificial Intelligence · Computer Science 2018-07-30 Zengkun Li

Despite the significant success at enabling robots with autonomous behaviors makes deep reinforcement learning a promising approach for robotic object search task, the deep reinforcement learning approach severely suffers from the nature…

Robotics · Computer Science 2021-03-04 Xin Ye , Yezhou Yang

Home-assistant robots have been a long-standing research topic, and one of the biggest challenges is searching for required objects in housing environments. Previous object-goal navigation requires the robot to search for a target object…

Robotics · Computer Science 2023-03-14 Hongyi Chen , Ruinian Xu , Shuo Cheng , Patricio A. Vela , Danfei Xu

In this paper we apply Deep Reinforcement Learning (Deep RL) and Domain Randomization to solve a navigation task in a natural environment relying solely on a 2D laser scanner. We train a model-based RL agent in simulation to follow lake and…

Robotics · Computer Science 2021-02-23 Antoine Richard , Stephanie Aravecchia , Thomas Schillaci , Matthieu Geist , Cedric Pradalier

The success of smart environments largely depends on their smartness of understanding the environments' ongoing situations. Accordingly, this task is an essence to smart environment central processors. Obtaining knowledge from the…

Human-Computer Interaction · Computer Science 2019-06-25 Hossein Rajaby Faghihi , Mohammad Amin Fazli , Jafar Habibi
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