共查询到20条相似文献,搜索用时 2 毫秒
1.
2.
Jennie E. Callas 《国际互联网参考资料服务季刊》2013,18(1):37-38
Abstract A major initiative of the Sandia National Laboratories Technical Library is to provide desktop access to information for Sandia researchers. During 1995 the Library created a home page, with information about how to link to its client-server based OPAC. Through multiple access points Sandians can now search the catalog from their desks. A new and evolving initiative within Sandia Laboratories is to improve desktop access to Sandia-generated documents (full-text) by converting them to electronic form, placing them on Sandia's “internal Web,” and linking them to the OPAC bibliographic record, enabling desktop viewing and printing. This paper addresses the processes developed in the Library to accomplish the preceding activities. It also addresses procedures for cataloging these electronic reports, including identification of the bibliographic information and MARC tags to be used. Open issues and lessons learned are identified. 相似文献
3.
In the Palm of Leonardo’s Hand: Modeling Polyhedra 总被引:1,自引:1,他引:0
George W. Hart presents three examples of new computer-based “3D printing” techniques for recreating the historically important
polyhedral models of Leonardo da Vinci and Luca Pacioli. It is hoped that such models will inspire students and the public
to appreciate the history and beauty of polyhedra for architectural and other applications. 相似文献
4.
5.
A recommender system is a Web technology that proactively suggests items of interest to users based on their objective behavior or explicitly stated preferences. Evaluations of recommender systems (RS) have traditionally focused on the performance of algorithms. However, many researchers have recently started investigating system effectiveness and evaluation criteria from users?? perspectives. In this paper, we survey the state of the art of user experience research in RS by examining how researchers have evaluated design methods that augment RS??s ability to help users find the information or product that they truly prefer, interact with ease with the system, and form trust with RS through system transparency, control and privacy preserving mechanisms finally, we examine how these system design features influence users?? adoption of the technology. We summarize existing work concerning three crucial interaction activities between the user and the system: the initial preference elicitation process, the preference refinement process, and the presentation of the system??s recommendation results. Additionally, we will also cover recent evaluation frameworks that measure a recommender system??s overall perceptive qualities and how these qualities influence users?? behavioral intentions. The key results are summarized in a set of design guidelines that can provide useful suggestions to scholars and practitioners concerning the design and development of effective recommender systems. The survey also lays groundwork for researchers to pursue future topics that have not been covered by existing methods. 相似文献
6.
《Information Processing Letters》1987,24(4):223-224
We give an elegant construction of short formulas for some of the symmetric Boolean functions. 相似文献
8.
A. V. Astanin A. D. Dashkevich I. B. Petrov M. N. Petrov S. V. Utyuzhnikov N. I. Khokhlov 《Mathematical Models and Computer Simulations》2017,9(2):133-141
The influence of the Chelyabinsk meteorite’s bow shock wave on the Earth’s surface is modeled. For solving the problem, a 3D statement is considered for its gas-dynamic and seismic parts. The determining equations of a gas-dynamic model and a seismic model are Euler equations with respect to the radiation heat exchange and the equations of linear elasticity theory, respectively. Two parts of the problem are matched by the direct mechanism of the disturbance transmission. A model seismic signal is compared with the real data. Modeling a seismic effect makes it possible to specify the estimate of the typical parameters of the phenomenon (height of the explosion, and the density and characteristic sizes of the meteorite). 相似文献
9.
10.
Ken Sugawara Kazuyuki Yaegashi Yoshikatsu Hayashi Tomonori Kikuchi Kazuki Tsuji 《Artificial Life and Robotics》2009,14(3):318-320
The gamergate (generally called the “queen”) of the Diacamma sp. walks around in the nest and comes into contact with the workers. The gamergate informs the workers of its presence by physical contact. This behavior is called a “patrol.” In previous work, it was reported that the gamergate controls its patrolling time depending on the colony size. How does the gamergate know the colony size, and how does it control the patrolling time? In this article, we propose a simple dynamics to explain this behavior. We assume that the gamergate and the workers have internal states which interact by physical contacts. By numerical simulations, we confirm that the patrol time of the proposed model depends on the size of the colony. 相似文献
11.
Huang Hsinfu Lin Chiaying Cai Dengchuan 《Universal Access in the Information Society》2021,20(3):429-440
Universal Access in the Information Society - Knowledge of 3D modeling design is crucial for industrial designers. Therefore, 3D modeling learning is a crucial subject in industrial design... 相似文献
12.
Jasmin Christian Blanchette 《Journal of Automated Reasoning》2009,43(1):1-18
Huffman’s algorithm is a procedure for constructing a binary tree with minimum weighted path length. Our Isabelle/HOL proof
closely follows the sketches found in standard algorithms textbooks, uncovering a few snags in the process. Another distinguishing
feature of our formalization is the use of custom induction rules to help Isabelle’s automatic tactics, leading to very short
proofs for most of the lemmas.
This work was supported by the DFG grant NI 491/11-1. 相似文献
13.
Calcolo - We derive results on equivalence of piecewise polynomial approximations of a given function in the Sobolev space $${varvec{H}}{mathrm{(curl)}}$$ . We namely show that the global-best... 相似文献
14.
Consensus of multiple Euler-Lagrange systems using one Euler-Lagrange System’s velocity measurements
Cheng Shan Yu Li Zhang Dongmei Ji Jinchen 《International Journal of Control, Automation and Systems》2017,15(1):450-456
International Journal of Control, Automation and Systems - This brief paper studies the stationary consensus of multiple Euler-Lagrange systems with nonlinear protocols. Two consensus protocols are... 相似文献
15.
Tomás García-Salgado 《Nexus Network Journal》2008,10(2):269-282
Because of differences between Palladio’s architecture as built and the ideal architecture represented in the Quattro libri, many analyses have been performed in order to bring to light the proportions that underlie the beauty of the architecture.
This present paper proposes a method of analysis based on perspective grids laid out on photographs to reveal how perspective
is used to heighten the spectator’s perception of the forms. 相似文献
16.
《Card Technology Today》2002,14(2):11-12
The roll-out by four major Canadian banks of the Email Money Transfers system (this issue, p.1) is a challenge to the dominance of PayPal in the person-to-person payments market. 相似文献
17.
Fiona Jane Candy 《Personal and Ubiquitous Computing》2007,11(8):647-655
Interaction forms are beginning to make more use of the way we move our bodies in the physical and social world. This paper
aims to contribute to a new generation of personal computing by showing how the medium of everyday clothing and dress can
bring valuable perspectives to the study of human embodiment and movement. The author refers to ideas from fashion theory
and clothing design that can contribute to a richer understanding of the many influences that convene emotions of style and
identity. In order to indicate the potential of personal style as a social medium with relevance to human computer interaction
(HCI), some existing artefacts that entail interaction through movement are referenced, along with research outcomes from
biomechanics, dance and performance. In conclusion design strategies are constructed for new movement-based interaction concepts
that can have relevance to the changing meanings of identity in twenty-first century mass society.
相似文献
Fiona Jane CandyEmail: |
18.
We are attempting to develop a system so that a user is able to let robots perform an intellectual action that has a healing
and friendly feeling. Based on the development process of the actions and consciousness of animals, we constructed a structure
model which connects consciousness and action hierarchically, built a valuation function for action selection, and developed
software to control the action of a robot. This software is called Consciousness-Based Architecture (CBA). With it, our aim
is to connect a user and robot as closely as possible and to allow smooth communications between them by developing an emotional
system that takes notice of consciousness. In our system, the robotic arm’s finger is outfitted with a small Web camera, which
allows the arm to recognize external information so that the robot can select various actions that comply with certain factors
in the outside environment. Furthermore, by using the actuator of the robotic arm, the system we have built provides a correspondence
between the robot’s internal states, such as the degree of rotation angle, and the outside temperature. In the present study,
a motivation model which considers the outside environment and the internal states has been built into the CBA, and the behavior
of the robotic arm has been verified. 相似文献
19.
Cognition, Technology & Work - Examining different team dynamics and understanding collective activities in home environments are two important challenges for ergonomics and its related fields.... 相似文献
20.
《Card Technology Today》2000,12(4):11
An almighty row has broken out in French banking circles and the dust has not settled yet. The much-vaunted security of the Cartes Bancaires system, which is built around the world’s first smart debit/credit card, has been cracked and the banks are still reeling under the shock. 相似文献