Spectral retrieval - PowerPoint PPT Presentation


Enhanced Spectral NITF Implementation Profile (SNIP) Version 1.2 Overview

This document outlines the Spectral NITF Implementation Profile (SNIP) version 1.2, its development, applications, and new elements. SNIP is a mandated standard for EO still imagery on DoD and IC systems, aiming to reduce integration costs and meet advanced exploitation needs for future HSI systems.

2 views • 14 slides


Assisted Reproductive Techniques: Oocyte Retrieval Process

The process of oocyte retrieval in assisted reproductive techniques involves the careful retrieval of cumulus-oocyte complexes from follicular fluid under anesthesia and ultrasound guidance. These complexes are then sorted and stored before further procedures such as in-vitro insemination or intracy

1 views • 13 slides



Enhancing Geography Learning Through Metacognitive Retrieval Practice

Students in Geography can improve their learning by applying metacognitive retrieval practice techniques. Retrieval practice helps activate prior knowledge, enhances memory retention, and fosters critical thinking skills. Metacognition, which involves planning, monitoring, and evaluating one's learn

1 views • 19 slides


Dynamic Subchannel Operation in IEEE 802.11-23/1892r0: Enhancing Spectral Efficiency

The document discusses the implementation of Dynamic Subchannel Operation in IEEE 802.11 to address underutilization of bandwidth by narrowband devices. By allowing dynamic switching to secondary subchannels, the aim is to maximize spectral efficiency and enable communication with narrowband STAs on

0 views • 9 slides


BTR: Binary Token Representations for Efficient Retrieval Augmented Language Models

Retrieval-augmented language models like BTR address issues such as hallucination by providing efficient solutions for encoding input passages and queries. By utilizing cacheable binary token representations, BTR offers a unique approach to decomposing and binarizing passage encoding to improve runt

0 views • 9 slides


Rate Optimization in Wideband RIS-assisted Wireless Systems

This research focuses on rate optimization in wideband RIS-assisted wireless systems, specifically investigating MIMO RIS-assisted systems in sub-6 GHz mmWave settings. Pathloss and blockage modeling, along with LOS vs. spectral efficiency and RIS-UE distance vs. spectral efficiency analyses, are ke

0 views • 4 slides


Understanding Retrieval Practice in Learning

Retrieval practice is a powerful learning strategy that involves recalling previously learned material to strengthen memory, improve long-term retention, and identify gaps in knowledge. It helps in combating forgetting, enhancing understanding, reducing test anxiety, and promoting independent study

0 views • 26 slides


Enhancing Information Retrieval with Augmented Generation Models

Augmented generation models, such as REALM and RAG, integrate retrieval and generation tasks to improve information retrieval processes. These models leverage background knowledge and language models to enhance recall and candidate generation. REALM focuses on concatenation and retrieval operations,

1 views • 9 slides


Introduction to Information Retrieval and Web Search

Information Retrieval (IR) involves finding unstructured material, typically text documents, within large collections stored on computers to satisfy information needs. This process extends beyond web search to include email search, corporate knowledge bases, and legal information retrieval. The text

0 views • 53 slides


Evaluation of IEEE 802.11ax for IMT-2020 eMBB Dense Urban Test Environment

This document discusses the evaluation of IEEE 802.11ax technology in the context of the IMT-2020 Enhanced Mobile Broadband (eMBB) Dense Urban test environment. It analyzes the performance of 802.11ax in meeting the key PHY/MAC metrics required for eMBB Dense Urban scenarios, such as Peak Spectral E

2 views • 13 slides


Enhancing Geography Learning Through Metacognitive Strategies and Retrieval Practice

Utilizing metacognition and retrieval practice can significantly improve students' learning in Geography by facilitating the activation of prior knowledge, enhancing memory retention, and promoting self-regulated learning. Metacognition involves planning, monitoring, and evaluating one's learning pr

0 views • 19 slides


Pure Shift NMR Workshop: Advancements and Insights

Explore the latest developments and insights in Pure Shift NMR spectroscopy through presentations on acquisition methods, implementations, and the quest for spectral purity. Discover the evolution of magnet development and the potential of high-temperature superconductivity in NMR technology. Delve

2 views • 27 slides


Understanding Ultraluminous X-ray Sources (ULXs) Properties

Explore the timing and spectral properties of Ultraluminous X-ray Sources (ULXs) through research conducted by Middleton, Gladstone, Roberts, Done, Uttley, and others. Learn about the spectral shapes, spectral deconvolutions, variability in X-ray spectra, timing tools, classification into low and hi

0 views • 23 slides


Bayesian Methodology for Soil Parameters Retrieval from SAR Images

Surface soil moisture retrieval is crucial for various applications such as climatic modeling, hydrological studies, and agronomy. This work focuses on developing a soil moisture retrieval algorithm using the SAOCOM L-Band polarimetric SAR system in Argentina. Limiting factors include spatial variab

1 views • 16 slides


Comprehensive Overview of Information Retrieval Techniques

This comprehensive overview delves into information retrieval concepts such as tolerant retrieval, inverted index, intersecting posting lists, and spelling correction. It also explores how Google utilizes the Boolean model for search queries and discusses various methods for spelling correction in d

2 views • 44 slides


Ranked Retrieval Models in Information Retrieval

Ranked retrieval in information retrieval systems offers an ordered list of top documents in response to free text queries, eliminating the issues of Boolean searches like "feast or famine". Users benefit from not being overwhelmed by vast result sets, as only the top results are presented. Scoring

0 views • 38 slides


Advanced Analysis of SAGE III Limb Scatter Retrievals

The proposed effort focuses on enhancing LaRC operational retrieval codes for SAGE LS data, correcting Level 1 radiances, and recommending LS operational scenarios. OMPS LS retrieval algorithms for aerosol and ozone, as well as the SAGE/M3 LS ozone retrieval approach, are detailed. Out-of-field stra

0 views • 12 slides


Efficient Solutions for Large-Scale Text Document Retrieval

In the realm of large-scale search and machine learning, implementing efficient solutions for text document retrieval is crucial. Techniques like inverted index and bitwise operations help overcome challenges of storage and sparsity in managing vast collections of documents. Measures like precision

0 views • 17 slides


Understanding Information Retrieval Models and Processes

Delve into the world of information retrieval models with a focus on traditional approaches, main processes like indexing and retrieval, cases of one-term and multi-term queries, and the evolution of IR models from boolean to probabilistic and vector space models. Explore the concept of IR models, r

0 views • 65 slides


Multimodal Semantic Indexing for Image Retrieval at IIIT Hyderabad

This research delves into multimodal semantic indexing methods for image retrieval, focusing on extending Latent Semantic Indexing (LSI) and probabilistic LSI to a multi-modal setting. Contributions include the refinement of graph models and partitioning algorithms to enhance image retrieval from tr

1 views • 28 slides


Soil Moisture Retrieval Over Bare Surfaces Using Radar Observations

This study focuses on retrieving soil moisture over bare surfaces using radar observations and a lookup table representation of forward scattering. The research aims to develop a non-empirical and simple method for accurate soil moisture retrieval without the need for ancillary information. Issues w

0 views • 14 slides


Intelligent Information Retrieval: Models, Ranking, and Algorithms

Explore the intricacies of retrieval models, ranking systems, and algorithms in the field of Intelligent Information Retrieval. Learn about the construction of indices, matching and scoring processes, distinguishing between exact-match and best-match retrieval, ranking algorithms like Boolean matchi

0 views • 36 slides


Understanding Retrieval Models in Information Retrieval

Retrieval models play a crucial role in defining the search process, with various assumptions and ranking algorithms. Relevance, a complex concept, is central to these models, though subject to disagreement. An overview of different retrieval models like Boolean, Vector Space, and Probabilistic Mode

0 views • 56 slides


Understanding Probabilistic Information Retrieval: Okapi BM25 Model

Probabilistic Information Retrieval plays a critical role in understanding user needs and matching them with relevant documents. This introduction explores the significance of using probabilities in Information Retrieval, focusing on topics such as classical probabilistic retrieval models, Okapi BM2

0 views • 27 slides


Understanding Core Concepts in Information Retrieval: Lexical and Semantic Gaps, Retrieval Models, and Algorithms

Explore the core concepts in Information Retrieval (IR) including lexical gaps like 'say' vs. 'said', semantic gaps, ranking models vs. retrieval methods, special data structures for efficient access, and algorithms for finding relevant documents. Understand the differences between IR and databases,

0 views • 46 slides


Role of Solvent in Spectral Properties and Solvatochromism

Solvent plays a crucial role in physical and chemical processes, affecting kinetics, equilibria, and spectral properties such as UV-vis, IR, and NMR. Solvathochromism describes the change in spectral bands caused by solvent interactions. Factors like solvent polarity and hydrogen bonding influence d

0 views • 19 slides


Insights into Cosmic Ray Spectrum Breaks and Hardening after Centuries of High-Resolution Measurements

Spectral breaks in cosmic ray (CR) spectrum reveal rigidity-dependent behaviors, such as proton break at 240 GeV and remarkable hardening post-breaks. Various experiments like PAMELA, ATIC, CREAM II, and others showcase unique features and spectral indices, shedding light on CR composition and accel

0 views • 15 slides


Evaluation Fundamentals and Interleaving Techniques in Information Retrieval

Explore the essentials of evaluation in Information Retrieval, covering topics like test collections, ranking, interleaving, and user studies. Understand batch and interleaved evaluation methods, user interaction feedback, and the motivation behind practical online retrieval evaluation. Dive into ba

0 views • 15 slides


Geographical Latent Variable Models for Microblog Retrieval

Addressing challenges in microblog retrieval such as vocabulary mismatch and multi-faceted relevance signals. Explore opportunities in leveraging lexical and non-lexical information, including geographical meta-data. Discuss prior work on utilizing timestamps and re-tweets, while also highlighting t

0 views • 19 slides


Modified Transmit Spectral Mask for IEEE P802.15 Working Group

This submission presents a modified transmit spectral mask for TG3e by Japan Radio Co., Ltd. The proposed mask aims to improve power efficiency without violating radio regulations. The motivation for the modification is to reduce unwanted aliasing and enhance SNR by employing a steep anti-aliasing s

0 views • 17 slides


Understanding Yukawa Textures and Spectral Data in Computing

Exploring the low energy limit of the Heterotic string, focusing on Yukawa couplings and spectral data in the context of Calabi-Yau threefold and Weierstrass elliptically fibered CY3. The goal involves direct computation of challenging cohomologies and utilizing Fourier-Mukai transform for bundle co

0 views • 17 slides


Spectral Characteristics of Infrared Sounders: Overview and Comparison

This presentation discusses the spectral characteristics of classic and smallsat types of infrared sounders, focusing on key parameters of LEO hyperspectral IR sounder sensors, spectral coverage, resolution, sampling, as well as the impact of spectral bands on power consumption and volume in smallsa

0 views • 4 slides


Spectral and Radiometric Considerations for Government Remote Sensing Instruments

This presentation explores the important considerations in designing and calibrating government passive optical remote sensing instruments, focusing on spectral and radiometric aspects. Topics include spectral variation, design considerations, uniformity, reflectance calibration, and examples from i

0 views • 27 slides


Introduction to Information Retrieval and Web Search

Information Retrieval (IR) involves finding unstructured material, usually text documents, to satisfy information needs from large collections. This process is essential for various applications like web search, email search, and corporate knowledge bases. The evolution of unstructured vs. structure

0 views • 15 slides


IEEE 802.11-21 Spectral Mask Floor Considerations

This document discusses the considerations related to changing the absolute power spectral density (PSD) floor for IEEE 802.11-21 transmissions. It covers requirements from regulatory bodies like ETSI and FCC, as well as considerations for coexistence with technologies like 5GNR. The document also h

0 views • 10 slides


TEMPO Simulation and Retrieval Tools Testing at SAO

TEMPO Simulation and Retrieval Tools and Algorithm Testing at SAO involved performing retrieval sensitivity studies, adapting VLIDORT for TEMPO radiance spectra, utilizing TEMPO SNR model for optical transmission calculations, and using climatological a priori data for trace gases. The studies focus

0 views • 4 slides


Efficient Scoring Techniques in Information Retrieval

Today's focus in Information Retrieval is on efficiently scoring and ranking documents matching a query from an inverted index. The goal is to assign scores to each document and select the top K highest scoring ones. Cutting down CPU usage for scoring while maintaining result quality is essential. T

0 views • 18 slides


Private Information Retrieval in Large-Scale Data Repositories

Private Information Retrieval (PIR) is a protocol that allows clients to retrieve data privately without revealing the query or returned data to the server or anyone spying on the network. Encrypting data on the server is not a solution due to security concerns related to server ownership. This adva

0 views • 31 slides


SUNSTORM: Advanced X-ray Technology for Solar Measurements

SUNSTORM, also known as XFM, is a cutting-edge technology designed specifically for measuring X-rays from the Sun, tailored for Space Weather monitoring. It offers high spectral and time resolution, a wide spectral range, and a large dynamic range, making it ideal for various scientific studies rela

0 views • 4 slides


Requirements for Semantic Biobanks and Global Biobank Data Retrieval

Explore the critical aspects of semantic interoperability in biobanking, highlighting the need for formal ontologies, comprehensive annotations, and model of meaning data. The (Generalized) Biomedical Retrieval Scenario underscores the importance of effective resource retrieval based on content-base

0 views • 16 slides