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Constructing query-biased summaries: A comparison of human and system generated snippets 10

Constructing query-biased summaries: A comparison of human a...

引用

Proceedings of the third symposium on Information interaction in context

作者： Bando, Lorena Leal Scholer, Falk Turpin, Andrew School of Computer Science and IT RMIT University Melbourne Australia Dept. of Computer Science Software Engineering University of Melbourne Melbourne Australia

ISBN: (纸本)9781450302470

Modern search engines display a summary for each ranked document that is returned in response to a query. These summaries typically include a snippet - a collection of text fragments from the underlying document - that has some relation to the query that is being answered. In this study we investigate how 10 humans construct snippets: participants first generate their own natural language snippet, and then separately extract a snippet by choosing text fragments, for four queries related to two documents. By mapping their generated snippets back to text fragments in the source document using eye tracking data, we observe that participants extract these same pieces of text around 73% of the time when creating their extractive snippets. In comparison, we notice that automated approaches for extracting snippets only use these same fragments 22% of the time. However, when the automated methods are evaluated using a position-independent bag-of-words approach, as typically used in the research literature for evaluating snippets, they appear to be much more competitive, with only a 24 point difference in coverage, compared to the human extractive snippets. While there is a 51 point difference when word position is taken into account. In addition to demonstrating this large scope for improvement in snippet generation algorithms with our novel methodology, we also offer a series of observations on the behaviour of participants as they constructed their snippets. Copyright 2010 ACM.

关键词： Eye tracking

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A novel approach to perform reversible addition/subtraction operations using deoxyribonucleic acid

A novel approach to perform reversible addition/subtraction ...

引用

2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014

作者： Sarker, Ankur Hasan Babu, Hafiz Md. Islam, Md. Saiful Dept. of Computer Science and Engineering University of Dhaka Dhaka 1000 Bangladesh Dept. of Computer Science and Software Engineering Swinburne University of Technology VIC 3122 Australia

ISBN: (纸本)9781479934324

Reversible logic transforms logic signal in a way that allows the original input signals to be recovered from the produced outputs, has attracted great attention because of its application in many areas. Traditional silicon computers consume much more power compared to computing systems based on Deoxyribonucleic Acid (DNA). In addition, DNA-based logic gates are stable and reusable. In this paper, we propose a new approach for designing DNA-based reversible adder/subtractor circuit;it's possible to perform addition and subtraction operations using single circuit representation. We first merge the properties of addition and subtraction operations. Then, we demonstrate reversible DNA-based addition and subtraction operations. Our proposed DNA-based reversible addition/subtraction circuit is faster than the conventional one due to parallelism and replication properties of DNA strands. It also requires less space because of compactness of DNA strands. In addition, the DNA-based adder/subtractor circuit needs low power as the formation of DNAs consumes a small amount of energy. Finally, the comparative results show that the proposed DNA-based system requires m+3.2n DNA signals, but in existing system, it requires m.2n, where m is the size of extra tags and n is the total number of bits. Besides, the run time complexity of proposed system has O(1) while the existing system has O(mln2n). © 2014 IEEE.

关键词： DNA

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Eternal embedded software: Towards innovation experiment systems

Eternal embedded software: Towards innovation experiment sys...

引用

5th International Symposium on Leveraging Applications of Formal Methods, Verification and Validation: Technologies for Mastering Change, ISoLA 2012

作者： Bosch, Jan Eklund, Ulrik Software Engineering Division Dept. Computer Science and Engineering Chalmers University of Technology Göteborg Sweden

ISBN: (纸本)9783642340253

The paper discusses the concept of innovation experiment systems in the context of long-lived embedded systems. These systems need to evolve continuously to stay competitive and provide value to the customer and end-user, especially in domains where the pace of change is increasing. Innovation experiment systems provide a natural mechanism that allows an embedded system, its architecture and underlying platform to continuously evolve in response to changes in the user requirements and system context. It uses a rapid feedback loop to evaluate the benefits of small variations to users with the intent of continuous improvements. The paper explores the architectural implications as the ability to continuously evolve and conduct experiences in the deployed product context in a safe and controlled manner must be supported by the architecture of the embedded systems. Finally, the paper illustrates these concepts using a case study concerning an infotainment system in the automotive industry. © 2012 Springer-Verlag.

关键词： Embedded systems

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Enhancing Energy Consumption of a Node in Wireless Sensor Networks Using Quick Response Code 3

Enhancing Energy Consumption of a Node in Wireless Sensor Ne...

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3rd International Conference on Inventive Research in Computing Applications, ICIRCA 2021

作者： Nidhya, M.S. Veronica, Benita K. J. Jayakarthik, R. Parvathavardhini, K. Pmist Dept of Software Engineering Thanjavur India Mother Teresa University Dept of Computer Science Kodaiakanal India Vistas Dept of Computer Science Chennai India

ISBN: (纸本)9780738146270

Sending messages, retransmission of identical messages, and sensing information in the monitored environment can quickly reduce the energy consumption of a sensor node present in a wireless sensor network. Due to repeated delivery of the same message, the battery loses power and drops dead. Node closer to the sink node will quickly deplete its energy by forwarding the messages. Total network lifetime will also be decreased. To overcome this, this research work use Quick response code (QR) for message transmission and reject the transmission of the same message several times. © 2021 IEEE.

关键词： Energy utilization

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Uncertainty reasoning in description logics: A generic approach

Uncertainty reasoning in description logics: A generic appro...

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FLAIRS 2006 - 19th International Florida Artificial Intelligence Research Society Conference

作者： Haarslev, Volker Pai, Hsueh-Ieng Shiri, Nematollaah Concordia University Dept. of Computer Science and Software Engineering Montreal Que. Canada

Description Logics (DLs) are gaining more popularity as the foundation of ontology languages for the Semantic Web. As most information in real life is imperfect, there has been an increasing interest recently in extending the expressive power of DLs with uncertainty, for which a number of frameworks have been proposed. In this paper, we introduce an extension of DL which unifies and/or generalizes a number of existing approaches for DLs with uncertainty. For this, we first provide a classification of existing frameworks for DLs with uncertainty on the basis of their underlying certainty formalisms. Using this as a basis, we introduce a generic framework for DL with uncertainty by extending components of the DL framework, i.e., the description language, the knowledge base, and the reasoning services. Copyright © 2006, American Association for Artmcial intellgence (***). All rights reserved.

关键词： Formal logic

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Virtual reality based assessment tool for measuring human perceptual sensitivity to erroneous motion

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8th International Conference on Ubiquitous Information Technologies and Applications, CUTE 2013

作者： Choi, Min-Hyung Alquzi, Mohammed Bahni Hong, Min Dept. of Computer Science and Engineering University of Colorado Denver United States Dept. of Computer Software Engineering Soonchunhyang University Korea Republic of

ISBN: (纸本)9783642416705

Recent advances in neuroscience have shown that the neuropathological disorders are closely related with diseases such as Alzheimer's. Those damages are particularly associated with the intermediate visual perceptual processing which can cause the motion perception defects and abnormal visuo-spatial functions in daily living of patients. In this paper, we propose a virtual reality based assessment tools for measuring human perceptual sensitivity to dynamic erroneous motions, particularly designed to assess possible early stage of brain damages and its associated visual dysfunctions. The proposed method contains multiple assessment layers to check the awareness of erroneous motion in natural scenes at various severities. Our VR based game type environment provides an effective test bed for various dynamic motion based perceptual sensitivity experiments. Our initial human subject tests show that game based test environment produces more coherent and consistent data, preferable to survey based methods. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Virtual reality

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Poster abstract: Recommendation-based smart indoor navigation 2

Poster abstract: Recommendation-based smart indoor navigatio...

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2nd IEEE/ACM International Conference on Internet-of-Things Design and Implementation, IoTDI 2017

作者： Wang, Wenlu Ku, Wei-Shinn Dept. of Computer Science and Software Engineering Auburn University AuburnAL United States

ISBN: (纸本)9781450349666

Localization in indoor spaces has to rely on sensing devices (e.g., Radio Frequency Identification (RFID) readers, WiFi routers, bluetooth beacons) rather than GPS devices. On the other side, we could build a smart indoor environment that facilitates all types of spatial services with various sensing devices. In this paper, we focus on the topic of spatial navigation. Due to the complexity of indoor environments, we believe the indoor navigation strategy should not be limited to the shortest path. Taking shopping centers for example, a navigation path should be not only the shortest path, but also an attractive route to the shopper. We aim to build a smart indoor navigation system, which not only learns the user's behavior through previous sensing data, but also enjoys working with heterogeneous devices. Therefore, we propose a novel recommendation based smart navigation strategy with Recurrent Neural Network (RNN). This strategy provides optimal user experience by: 1) Memorizing the user's historical data;2) Overlapping the navigation with the user's indoor behavior model;3) Making recommendations based on real-time detections from sensor devices. © 2017 ACM.

关键词： Recurrent neural networks

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Split disk-cache architecture to reduce read miss ratio

Split disk-cache architecture to reduce read miss ratio

引用

9th IASTED International Conference on Parallel and Distributed Computing and Networks, PDCN 2010

作者： Baskiyar, Sanjeev Wang, Chengjun Dept. of Computer Science and Software Engineering Auburn University Auburn AL United States

ISBN: (纸本)9780889868205

The widening performance gap between processor and disk demands innovations. Several optimization techniques, (e.g., read caching, write buffering, prefetching), have been proposed to narrow this gap. Read caching is the least effective technique among them in resource-poor condition. In this paper, we propose a novel technique which splits the disk cache into metadata and data to improve read miss ratio. The proposal is based on observations that metadata is smaller in size and more frequently accessed than its data. Split caches can reduce the interference between metadata and data. Our study shows that by splitting the disk cache the effective read miss ratio can be improved by 20%, which in turn would bring about 16% performance improvements in response time. Furthermore, the total size of the split caches is about 35%-97% of the unified cache to reach the same read miss ratio.

关键词： Metadata

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Architecture for large-scale innovation experiment systems

Architecture for large-scale innovation experiment systems

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Joint 10th Working IEEE/IFIP Conference on software Architecture, WICSA 2012 and 6th European Conference on software, ECSA 2012

作者： Eklund, Ulrik Bosch, Jan Software Engineering Division Dept. of Computer Science and Engineering Chalmers University of Technology Göteborg Sweden

ISBN: (纸本)9780769548272

Business and design decisions regarding software development should be based on data, not opinions among developers, domain experts or managers. The company running the most and fastest experiments among the customer base against the lowest cost per experiment outcompetes others by having the data to engineer products with outstanding qualities such as power consumption and user experience. Innovation experiment systems for mass-produced devices with embedded software is an evolution of current R&D practices, going from where innovations are internally evaluated by the original equipment manufacturer to where they are tried by real users in a scale relevant to the full customer base. The turnaround time from developing and deploying an embedded product to getting customer feedback is decreased to weeks, the limit being the speed of the software development teams. The paper presents an embedded architecture for realising such a novel innovation experiment system based on a set of scenarios of what to evaluate in the experiments. A case is presented implementing an architecture in a prototype in-vehicle infotainment system where comparative testing between two software alternatives was performed. © 2012 IEEE.

关键词： software architecture

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Faceswap Deepfakes Detection using Novel Multi-directional Hexadecimal Feature Descriptor 19

Faceswap Deepfakes Detection using Novel Multi-directional H...

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19th International Bhurban Conference on Applied sciences and Technology, IBCAST 2022

作者： Qurat-Ul-Ain Javed, Ali Mahmood Malik, Khalid University of Engineering and Technology Dept. of Computer Science Taxila Pakistan University of Engineering and Technology Dept. of Software Engineering Taxila Pakistan Oakland University Dept. of Computer Science and Engineering United States

ISBN: (数字)9781665460514

ISBN: (纸本)9781665460514

With the growing number of sophisticated deep learning algorithms and fake video generation applications, it is now possible to create highly realistic deepfake videos. Faceswap is the most commonly employed deepfakes approach, which is challenging to detect due to variations in the facial skin tone, illumination conditions, presence of accessories like glasses on the face, compression artifacts, etc. Existing local texture descriptors have achieved better performance on face recognition applications;however, they compute only the limited directional information while ignoring the magnitude details. This motivated us to develop a robust local texture descriptor to extract more directional and magnitude details from the adjacent pixels to effectively represent the video frames. For this purpose, we proposed a robust multi-directional hexadecimal feature descriptor (MDHFD) by combining the local hexadecimal pattern (LHeXDP) and Local Adjacent Neighborhood Magnitude Pattern (LANMP). LHeXDP calculates the orientation-based pattern by computing 1st- and 2nd-order derivatives at 0°, 45°, 90°, and 135° angles from each center pixel. LANMP computes the magnitude information from each central pixel to its adjacent pixels in horizontal, vertical, diagonal, and diagonal-back directions. Histograms of both the LHeXDP and LANMP are fused to compute a multi-directional feature vector, which is used to train a support vector machine to classify between the original or faceswap deepfakes video. We measured the performance of our system on the challenging faceswap subset of a diverse and large-scale Face Forensic++ and World Leaders datasets. Experimental results illustrate that the proposed method outperforms state-of-art methods for the detection of faceswap deepfakes. © 2022 IEEE.

关键词： Pixels

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