Results 11 to 20 of about 5,045,493 (316)

Accessibility of information on the web [PDF]

open access: yesNature, 1999
Search engines do not index sites equally, may not index new pages for months, and no engine indexes more than about 16% of the web. As the web becomes a major communications medium, the data on it must be made more accessible.
Steve Lawrence, C. Lee Giles
openaire   +2 more sources

Laser Linewidth Analysis and Filtering/Fitting Algorithms for Improved TDLAS-Based Optical Gas Sensor

open access: yesSensors, 2023
Tunable Diode Laser Absorption Spectroscopy (TDLAS) has been widely applied in in situ and real-time monitoring of trace gas concentrations. In this paper, an advanced TDLAS-based optical gas sensing system with laser linewidth analysis and filtering ...
Chen Tong   +6 more
doaj   +1 more source

Quick Suppression of DDoS Attacks by Frame Priority Control in IoT Backhaul With Construction of Mirai-Based Attacks

open access: yesIEEE Access, 2022
We propose a novel distributed denial of service (DDoS) attack suppression system that significantly reduces discarding of normal traffic (i.e., the traffic from Internet of Things (IoT) devices that are not infected with a malware) with a small number ...
Rintaro Harada   +7 more
doaj   +1 more source

Evaluating Multimedia and Language Tasks

open access: yesFrontiers in Artificial Intelligence, 2020
Evaluating information access tasks, including textual and multimedia search, question answering, and understanding has been the core mission of NIST's Retrieval Group since 1989.
Ian Soboroff   +5 more
doaj   +1 more source

The Low-Loss Spot Size Converter for Alignment with Cleaved Single Mode Fiber

open access: yesApplied Sciences, 2023
Integrating the graded index (GRIN) waveguide with the 2-D inversely-tapered waveguide, a new design of spot size converter (SSC) has been proposed to couple the light beam between the cleaved single-mode fiber (SMF) and the silicon (Si) wire waveguide ...
Jinyang Zhao   +4 more
doaj   +1 more source

Cooperated Traffic Shaping With Traffic Estimation and Path Reallocation to Mitigate Microbursts in IoT Backhaul Network

open access: yesIEEE Access, 2021
An aggregating switch (SW) network offers cost-effective accommodation to Internet-of-Things (IoT) traffic by aggregating the traffic. In such a network, it is crucial to eliminate the discarded traffic caused by the simultaneous transmission of massive ...
Kazuaki Honda   +7 more
doaj   +1 more source

Design and Prototype Implementation of Software-Defined Radio Over Fiber

open access: yesIEEE Access, 2021
Future networks require a high degree of flexibility over wide areas to enable many services that require higher quality wireless networks such as remote control of cars and remote surgery.
Takumasa Ishioka   +10 more
doaj   +1 more source

Evaluating Information Retrieval and Access Tasks

open access: yes, 2021
This open access book summarizes the first two decades of the NII Testbeds and Community for Information access Research (NTCIR). NTCIR is a series of evaluation forums run by a global team of researchers and hosted by the National Institute of ...

core   +1 more source

Refractometry With a Tailored Sensitivity Based on a Single-Mode-Capillary-Single-Mode Fiber Structure

open access: yesIEEE Photonics Journal, 2017
We demonstrate a simple structure for the refractive index sensing by splicing a segment of capillary with two segments of single-mode fibers (SMFs). By selecting appropriate splicing parameters, two mode coupling regions can be formed with tapered air ...
Xiaobei Zhang   +5 more
doaj   +1 more source

Roughness Estimation of Multimode Rectangular Optical Waveguide Based on the Scattering Loss Difference Between SMFW and MMFW Structures

open access: yesIEEE Photonics Journal, 2017
Based on the scattering loss difference between the single-mode-fiber-optical-waveguide (SMFW) and multimode-fiber-optical-waveguide (MMFW) structures, a method to estimate the roughness of multimode rectangular optical waveguide (ROW) is proposed. Based
Chuanlu Deng   +6 more
doaj   +1 more source

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