检索结果-内蒙古大学图书馆

41st International Conference on Machine Learning, ICML 2024

作者： Nguyen, Duy M.H. Lukashina, Nina Nguyen, Tai Le, An T. Nguyen, TrungTin Ho, Nhat Peters, Jan Sonntag, Daniel Zaverkin, Viktor Niepert, Mathias Department of Computer Science University of Stuttgart Germany Germany Germany Department of Computer Science Technische Universitat Darmstadt Germany School of Mathematics and Physics University of Queensland Australia Department of Statistics and Data Sciences University of Texas Austin United States Hessian.AI United States Department of Applied Artificial Intelligence Oldenburg University Germany NEC Laboratories Europe Germany

A molecule's 2D representation consists of its atoms, their attributes, and the molecule's covalent bonds. A 3D (geometric) representation of a molecule is called a conformer and consists of its atom types and Cartesian coordinates. Every conformer has a potential energy, and the lower this energy, the more likely it occurs in nature. Most existing machine learning methods for molecular property prediction consider either 2D molecular graphs or 3D conformer structure representations in isolation. Inspired by recent work on using ensembles of conformers in conjunction with 2D graph representations, we propose E(3)-invariant molecular conformer aggregation networks. The method integrates a molecule's 2D representation with that of multiple of its conformers. Contrary to prior work, we propose a novel 2D-3D aggregation mechanism based on a differentiable solver for the Fused Gromov-Wasserstein Barycenter problem and the use of an efficient conformer generation method based on distance geometry. We show that the proposed aggregation mechanism is E(3) invariant and propose an efficient GPU implementation. Moreover, we demonstrate that the aggregation mechanism helps to significantly outperform state-of-the-art molecule property prediction methods on established datasets. Our implementation is available at this link. Copyright 2024 by the author(s)

关键词： Molecular docking

来源：评论

学校读者我要写书评

暂无评论

Circuit designs for practical-scale fault-tolerant quantum computing

Circuit designs for practical-scale fault-tolerant quantum c...

引用

2023 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2023

作者： Suzuki, Yasunari Ueno, Yosuke Liao, Wang Tanaka, Masamitsu Tanimoto, Teruo Ntt Computer & Data Science Laboratories Tokyo Musashino Japan Jst Resto Kawaguchi Saitama Japan Keio University Kanagawa Yokohama Japan The University of Tokyo Bunkyo-ku Tokyo Japan Nagoya University Aichi Nagoya Japan Kyushu University Fukuoka Japan

ISBN: (纸本)9784863488069

To demonstrate reliable and scalable quantum computation, we need quantum error correction to reduce its error rates. One of the most challenging parts of implementing quantum error correction is to design error-decoding units, which estimate errors during computation. We estimate the required performances of error-decoding units to run practical-scale quantum algorithms and discuss the directions to satisfy them. © 2023 JSAP.

关键词： Quantum computers

来源：评论

学校读者我要写书评

暂无评论

Finding Contributable Activities Using Non-Verb Attributes In Events 27

Finding Contributable Activities Using Non-Verb Attributes I...

引用

27th International Conference on Knowledge Based and Intelligent Information and Engineering Sytems, KES 2023

作者： Kaiya, Haruhiko Takeuchi, Hironori Nakagawa, Hiroyuki Ogata, Shinpei Saito, Shinobu Kanagawa University Yokohama221-8686 Japan Musashi University Tokyo176-8534 Japan Osaka University Osaka565-0871 Japan Shinshu University Nagano380-8553 Japan NTT Computer and Data Science Laboratories Tokyo108-0023 Japan

Many different activities are performed simultaneously in the real world, and one of them contains actions, that can be utilized in another activity. If such actions are actually utilized, the activity utilizing them become more efficiently than ever. We call the activity providing such actions a contributable activity, and the one utilizing the actions a contributed activity. Our research goal is to find such contribution relationships between activities. To achieve the goal, we used a conformance checking technique in the field of process mining research. In the process mining research, logs of actions and control flow models are used, and the logs and the models are usually represented by the verb attribute in an action such as "submit", "decide" and so on. However, we could not find some contribution relationships by using the logs and models of the verb attribute. We thus examine the usage of non-verb attributes such as a place or a tool in an action for our goal. Through a case study about elderly people care, we find non-verb attributes have some potential to achieve our goal more comprehensively than ever. © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://***/licenses/by-nc-nd/4.0)

关键词： Conformance checking Non-verb attributes in a log Process mining

来源：评论

学校读者我要写书评

暂无评论

A Proposal to Find Mutually Contributable Business or Life Activities Using Conformance Checking 26

A Proposal to Find Mutually Contributable Business or Life A...

引用

26th International Conference on Knowledge-Based and Intelligent Information and Engineering Systems, KES 2022

作者： Kaiya, Haruhiko Misawa, Tomoya Ogata, Shinpei Saito, Shinobu Nakagawa, Hiroyuki Takeuchi, Hironori Kanagawa University Hiratsuka259-1293 Japan Shinshu University Nagano380-8553 Japan NTT Computer and Data Science Laboratories Tokyo108-0023 Japan Osaka University Suita565-0871 Japan Musashi University Tokyo176-8534 Japan

We propose a method to comprehensively find a pair of business or life activities, which can mutually contribute to each other. We assume that the activities with synchronized processes can mutually contribute to each other. A process model of an activity is thus compared to a log of another activity for measuring whether the activities can synchronize their processes to a certain extent using a conformance checking technique. The threshold of the extent is defined on the basis of a randomly generated log containing the same events as those in the compared log. We tentatively evaluated the method through a case study, and confirmed that the method seemed to be valid. © 2022 The Authors. Published by Elsevier B.V.

关键词： Conformance checking Cross-organizational process Process mining Sharing process

来源：评论

学校读者我要写书评

暂无评论

Non-linear Embeddings in Hilbert Simplex Geometry

arXiv

引用

arXiv 2022年

作者： Nielsen, Frank Sun, Ke Sony Computer Science Laboratories Inc Japan Japan CSIRO Data61 Australia The Australian National University Australia

A key technique of machine learning is to embed discrete weighted graphs into continuous spaces for further downstream analysis. Embedding discrete hierarchical structures in hyperbolic geometry has proven very successful since it was shown that any weighted tree can be embedded in that geometry with arbitrary low distortion. Various optimization methods for hyperbolic embeddings based on common models of hyperbolic geometry have been studied. In this paper, we consider the Hilbert geometry of the standard simplex which is isometric to a vector space equipped with a symmetric polytope norm. We study the representation power of this Hilbert simplex geometry by embedding distance matrices of graphs using a fast differentiable approximation of the Hilbert metric distance. Our findings demonstrate that Hilbert simplex geometry is competitive to alternative geometries such as the Minkowski hyperboloid model of hyperbolic geometry or the Euclidean geometry for embedding tasks while being fast and numerically robust. Copyright © 2022, The Authors. All rights reserved.

关键词： Geometry

来源：评论

学校读者我要写书评

暂无评论

A Seat Headrest Loudspeaker System with Personalized Sound Zone Capabilities

A Seat Headrest Loudspeaker System with Personalized Sound Z...

引用

IEEE International Conference on Consumer Electronics (ICCE)

作者： Masahiro Fukui Kazunori Kobayashi Noriyoshi Kamado Computer and Data Science Laboratories NTT Corporation Tokyo Japan Product Department NTT Sonority Inc. Tokyo Japan

This paper proposes a novel local reproduction method called “personalized sound zone,” which can confine a sound field by using a combination of software processing and hardware innovations that remove loudspeaker enclosures from an array, and discusses the development of a headrest loudspeaker prototype unit not to leak sound into adjacent seats for airline seating. The proposed method is based on a two-channel fixed beamforming algorithm that does not require extensive equipment, and its prototype is compact enough to fit in a seat headrest. The personalized sound zone software algorithm is implemented on a DSP circuit board and processed in real time.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Interpretable Skill Learning for Dynamic Treatment Regimes through Imitation

Interpretable Skill Learning for Dynamic Treatment Regimes t...

引用

Annual Conference on Information sciences and Systems (CISS)

作者： Yushan Jiang Wenchao Yu Dongjin Song Wei Cheng Haifeng Chen Department of Computer Science and Engineering University of Connecticut Storrs CT USA NEC Laboratories American Data Science & System Security Princeton NJ USA

Imitation learning that mimics experts' skills from their demonstrations has shown great success in discovering dynamic treatment regimes, i.e., the optimal decision rules to treat an individual patient based on related evolving treatment and covariate history. Existing imitation learning methods, however, still lack the capability to interpret the underlying rationales of the learned policy in a faithful way. Moreover, since dynamic treatment regimes for patients often exhibit varying patterns, i.e., symptoms that transit from one to another, the flat policy learned by a vanilla imitation learning method is typically undesired. To this end, we propose an Interpretable Skill Learning (ISL) framework to resolve the aforementioned challenges for dynamic treatment regimes through imitation. The key idea is to model each segment of experts' demonstrations with a prototype layer and integrate it with the imitation learning layer to enhance the interpretation capability. On one hand, the ISL framework is able to provide interpretable explanations by matching the prototype to exemplar segments during the inference stage, which enables doctors to perform reasoning of the learned demonstrations based on human-understandable patient symptoms and lab results. On the other hand, the obtained skill embedding consisting of prototypes serves as conditional information to the imitation learning layer, which implicitly guides the policy network to provide a more accurate demonstration when the patients' state switches from one stage to another. Thoroughly empirical studies demonstrate that our proposed ISL technique can achieve better performance than state-of-the-art methods. Moreover, the proposed ISL framework also exhibits good interpretability which cannot be observed in existing methods.

关键词： Learning systems Visualization MIMICs Decision making Prototypes Medical services Cognition

来源：评论

学校读者我要写书评

暂无评论

Real-Time Reporting of Broadband Wave Directional Spectra by NDBO Buoys

Real-Time Reporting of Broadband Wave Directional Spectra by...

引用

OCEANS

作者： E. Burdette F. Wilem K. Steele National Space Technology Laboratories Computer Science Corporation MI USA National Space Technology Laboratories Data Buoy National Oceanic and Atmospheric Administration MI USA

An improved system for the measurement and telemetry of ocean wave directional spectra has been developed by the NOAA data Buoy Office (NDBO). Based on the conventional technique for obtaining an azimuthal approximation of the directional spectrum from time series of measurements of the motion of a pitch/roll buoy, the system represents improvements in hardware over an earlier experimental system tested by NDBO, which demonstrated the feasibility of real-time reporting of directional spectra. The improved system was installed and operated on board the 12-meter-diameter discus-hull buoy XERB, (experimental environmental research buoy), to verify the improved system concept. Experience gained with the improved hardware will be reflected in the development of an operational system specification. An improved onboard processing procedure, employing a technique based on the segmented-record fast Fourier transform, will soon be installed aboard XERB for operational verification.

关键词： Hardware data communication Payloads Frequency estimation Propagation losses Power engineering and energy Packaging Power supplies data acquisition Buffer storage

来源：评论

学校读者我要写书评

暂无评论

Detection of NDBO Wave Measurement System Malfunctions

Detection of NDBO Wave Measurement System Malfunctions

引用

OCEANS

作者： K. Steele G. Marks National Space Technology Laboratories Data Buoy National Oceanic and Atmospheric Administration MS USA National Space Technology Laboratories Computer Science Corporation MS USA

The data Buoy Office of the National Oceanic and Atmospheric Administration (NOAA) has deployed a number of moored buoys at continental shelf and deep ocean sites. Most of these buoys report wind speed and wave displacement spectra to shore every 3 hours. Although the proper functioning of the systems measuring and reporting these data can be verified by comparison instruments on board a ship at the deployment site, other means of verification are required during long periods of unattended operation. The NOAA data Buoy Office (NDBO) has devised a technique for the detection of gross malfunctions in wind or wave measurement systems through the consistency of the wind and wave measurements with each other. This paper describes the technique and demonstrates its application by showing actual data.

关键词： Equations Filtering Sea measurements Wind speed Acceleration Velocity measurement Frequency Power filters Calibration Wind forecasting

来源：评论

学校读者我要写书评

暂无评论

Visually Equivalent Light Field 3D for Portable Displays

Visually Equivalent Light Field 3D for Portable Displays

引用

Conference Record of the IEEE Industry Applications Society Annual Meeting (IAS)

作者： Munekazu Date Shinya Shimizu Susumu Yamamoto NTT Computer and Data Science Laboratories Nippon Telegraph and Telephone Corporation Yokosuka Japan NTT Human Informatics Laboratories Nippon Telegraph and Telephone Corporation Yokosuka Japan

ISBN: (纸本)9781728164021

Highly realistic 3D displays that can reproduce object images to look like physical objects are utilized for natural and correct remote operation in industrial scenes. Therefore, we developed a visually equivalent light field 3D (VELF3D) display that can produce highly realistic, accurate images with a high resolution and a smooth, accurate motion parallax. However, the observation distance is slightly long, and users cannot reach the displayed images. Therefore, we aim to develop a tablet-computer-type VELF3D display that enables users to touch the displayed objects. The display viewpoint density has been increased to achieve a shorter observation distance while maintaining the display depth range. Because higher resolutions are required for a close observation distance and increased display viewpoints, we aimed to improve effective resolution using almost the same pixel pitch display panel. Therefore, we built a prototype that combines a vertical red, green, blue (RGB) stripe display panel and a parallax barrier with subpixel width slits. We confirmed effective resolution improvement by tiny subjective tests. This method also helps increase the depth range of the display when it is observed from a normal distance.

关键词： Three-dimensional displays Image resolution Fluctuations Industry applications Prototypes Tablet computers Light fields

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：