scholarly journals Personalized Mobile Information Recommendation Based on Fine-Grained User Behaviors

2020 ◽  
Author(s):  
Yilei Wang ◽  
Xueqin Chen
Keyword(s):  
Reading Habits ◽  
Reading Behaviors ◽  
Fine Grained ◽  
User Behaviors ◽  
Reading Preference ◽  
Mobile Information ◽  
Behavioral Preferences ◽  
Information Recommendation ◽  
Interest Model ◽  
The Difference

At present, the enthusiasm of users to score actively in mobile information recommendation system is generally poor. Moreover, the existing research works rarely start with the analysis of fine-grained reading behaviors of mobile terminal users, but mostly based on the analysis of reading content and the improvement of model. It is difficult to find out the objective, short-term and local behavioral preferences of users. To solve the above problems, we propose six kinds of explicit fine-grained reading behaviors and integrate them into the user reading interest model to form the SVR-ALL model. The effectiveness of these six fine-grained behaviors is verified by ablative experiments. On the basis of SVR-ALL model, four implicit fine-grained reading behaviors are further mined by considering the difference of user reading habits, and then propose the user reading preference model called F-AFC. The updating mechanism for user preference designed in F-AFC can fully reflect the changes of users’ reading habits in different periods. Experiments show that the accuracy of the user interest model considering user’s reading preference and its update can be improved to some extent.

scholarly journals An Information Recommendation Technique Based on Influence and Activeness of Users in Social Networks

2021 ◽  
Vol 11 (6) ◽  
pp. 2530
Author(s):  
Minsoo Lee ◽  
Soyeon Oh
Keyword(s):  
Social Networks ◽  
Social Network ◽  
Recommendation Systems ◽  
Network Services ◽  
The Past ◽  
User Behaviors ◽  
User Influence ◽  
User Activity ◽  
Information Recommendation ◽  
Social Network Services

Over the past few years, the number of users of social network services has been exponentially increasing and it is now a natural source of data that can be used by recommendation systems to provide important services to humans by analyzing applicable data and providing personalized information to users. In this paper, we propose an information recommendation technique that enables smart recommendations based on two specific types of analysis on user behaviors, such as the user influence and user activity. The components to measure the user influence and user activity are identified. The accuracy of the information recommendation is verified using Yelp data and shows significantly promising results that could create smarter information recommendation systems.

FG-LiquID

2021 ◽  
Vol 5 (3) ◽  
pp. 1-27
Author(s):  
Yumeng Liang ◽  
Anfu Zhou ◽  
Huanhuan Zhang ◽  
Xinzhe Wen ◽  
Huadong Ma
Keyword(s):  
Alcohol Concentration ◽  
Coarse Grained ◽  
Robust Identification ◽  
Fine Grained ◽  
Fresh Milk ◽  
Average Accuracy ◽  
Coarse Grained Material ◽  
Potential Applications ◽  
Fine Grained Material ◽  
The Difference

Contact-less liquid identification via wireless sensing has diverse potential applications in our daily life, such as identifying alcohol content in liquids, distinguishing spoiled and fresh milk, and even detecting water contamination. Recent works have verified the feasibility of utilizing mmWave radar to perform coarse-grained material identification, e.g., discriminating liquid and carpet. However, they do not fully exploit the sensing limits of mmWave in terms of fine-grained material classification. In this paper, we propose FG-LiquID, an accurate and robust system for fine-grained liquid identification. To achieve the desired fine granularity, FG-LiquID first focuses on the small but informative region of the mmWave spectrum, so as to extract the most discriminative features of liquids. Then we design a novel neural network, which uncovers and leverages the hidden signal patterns across multiple antennas on mmWave sensors. In this way, FG-LiquID learns to calibrate signals and finally eliminate the adverse effect of location interference caused by minor displacement/rotation of the liquid container, which ensures robust identification towards daily usage scenarios. Extensive experimental results using a custom-build prototype demonstrate that FG-LiquID can accurately distinguish 30 different liquids with an average accuracy of 97%, under 5 different scenarios. More importantly, it can discriminate quite similar liquids, such as liquors with the difference of only 1% alcohol concentration by volume.

scholarly journals The Impact of Print vs. Digital Resources on Moroccan University Students’ Reading Habits, Uses, and Preferences

2018 ◽  
Vol 52 ◽  
pp. 02001
Author(s):  
Maryem Larhmaid
Keyword(s):  
Undergraduate Students ◽  
Reading Practices ◽  
Reading Habits ◽  
Reading Behaviors ◽  
Digital Resources ◽  
Online Newspapers ◽  
Digital Devices ◽  
Reading Materials ◽  
Information Consumers ◽  
The Impact

The widespread use of digital resources, the Internet and the development of technology have brought several significant changes in reading practices, preferences and use among information consumers. Readers of the 21st century have many options for reading thanks to the rapid growth of electronic-based reading materials, instead of printed ones, such as online newspapers, electronic books, digital encyclopedias, and online academic journals, as well as the expansion of e-book readers. All of these have contributed to changing readers’ reading strategies, reading preferences, and attitudes toward the act of reading. In the field of academia, for instance, there has been a tremendous shift from paper-based reading to screen-based reading. Given the fact that digital devices have become pervasive, and that reading has recently become a digital activity, this article proposes the need to investigate the impact of print vs. digital reading materials on Moroccan undergraduate students’ reading behaviors, preferences and use.

scholarly journals A new type of slumping-induced soft-sediment deformation structure: the envelope structure

Geologos ◽  
2019 ◽  
Vol 25 (2) ◽  
pp. 111-124
Author(s):  
Uk Hwan Byun ◽  
A.J. Tom van Loon ◽  
Yi Kyun Kwon ◽  
Kyoungtae Ko
Keyword(s):  
Slope Failure ◽  
Gravity Flow ◽  
Soft Sediment ◽  
Deformation Structure ◽  
Rare Type ◽  
Fine Grained ◽  
Sediment Deformation ◽  
Soft Sediment Deformation ◽  
The Difference ◽  
Siliciclastic Rocks

Abstract The sediments of the Cretaceous Gyeokpori Formation in south-western South Korea accumulated in a lake in which mainly siliciclastic rocks were deposited, with some interbedded volcaniclastics. The nearby volcanic activity resulted in unstable lake margins inducing a dominance of gravity-flow deposits. The high sedimentation rate facilitated soft-sediment deformation on the sloping margin. The deposition of numerous gravity-flow deposits resulted in a vertically heterolithic stratification. The slumps are composed of different lithologies, which is expressed in different types of deformation due to the difference in cohesion between sandy and mussy layers within the slumps. Coarser-grained (cohesionless) slumps tend to show more chaotic deformation of their lamination or layering. The difference in slumping behaviour of the cohesive and non-cohesive examples is explained and modelled. A unique soft-sediment deformation structure is recognized. This structure has not been described before, and we call it ‘envelope structure’. It consists of a conglomerate mass that has become entirely embedded in fine-grained sediment because slope failure took place and the fine-grained material slumped down with the conglomerate ‘at its back’. The cohesive laminated mudstone formed locally slump folds that embedded the non-cohesive overlying conglomerate unit, possibly partly due to the bulldozing effect of the latter. This structure presumably can develop when the density contrast with the underlying and overlying deposits is exceptionally high. The envelope structure should be regarded as a special – and rare – type of a slumping-induced deformation structure.

A Tool for Discourse Analysis and Visualization

2013 ◽  
Vol 5 (2) ◽  
pp. 55-71 ◽  
Author(s):  
Costin-Gabriel Chiru ◽  
Stefan Trausan-Matu
Keyword(s):  
Discourse Analysis ◽  
Intrinsic Structure ◽  
Fine Grained ◽  
Construction Of Knowledge ◽  
Cultural Paradigms ◽  
Starting Point ◽  
Social Construction Of Knowledge ◽  
Before And After ◽  
The Difference ◽  
Polyphonic Model

In this paper the authors present a system that combines the cognitive and socio-cultural paradigms in the field of discourse analysis in order to analyze both texts written by only one author (for example narrations) and those written collaboratively (chat conversations, blogs, wikis, forums). The novelty of their approach is that the majority of the existing applications are oriented on analyzing only one of these two types, an adaptation being necessary for the analysis of the other type. Another advantage of the presented system is that since it is centered on a dialogistic polyphonic model considering topics as inter-animated voices, it could show the difference between coarse- and fine-grained coherence in discourse, therefore allowing the analysis of a text from two different viewpoints: a) its intrinsic structure and cohesion and b) how well this text fits in a stream of texts (whether it is or not cohesive with the texts before and after it). The dialogistic polyphonic model was used as a starting point for a method for analyzing collaboration and social construction of knowledge in groups and communities using textual interactions, and for several implemented systems for providing computerized support to the analysis method through visualizations and feedback generation.

scholarly journals How App Books’ Affordances Are Related to Young Children’s Reading Behaviors and Outcomes

AERA Open ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 233285841985984 ◽  
Author(s):  
Tanya Christ ◽  
X. Christine Wang ◽  
Ming Ming Chiu ◽  
Ekaterina Strekalova-Hughes
Keyword(s):  
Critical Thinking ◽  
Response Analysis ◽  
Reading Behaviors ◽  
Instructional Goals ◽  
Fine Grained ◽  
Buddy Reading ◽  
Individual Outcomes ◽  
Mixed Response ◽  
Reading Session ◽  
Individual Reading

Given the increasing use of app books with young children, research is needed to inform their selection and design. Although broad guidelines exist, more fine-grained guidance is needed. To address this need, we explored the relations among app books’ digital affordances, readers’ behaviors with these affordances during both buddy and individual reading sessions, and their individual outcomes. Fifty-three kindergarteners (ages 5.05–6.46 years; M = 5.60, SD = 0.42) read 12 app books twice each across 24 buddy reading sessions and four app books once each across four individual reading sessions, and their comprehension was assessed after each individual reading session. Multivariate, mixed response analysis found that (a) when a greater number of minimum hotspots were available per page, retelling was better; and (b) availability of word hotspots was linked to better critical thinking/inference outcomes. Implications include choosing app books with affordances that this study showed support particular reading outcomes, in alignment with instructional goals.

scholarly journals Granite micro-porosity changes due to fracturing and alteration: secondary mineral phases as proxies for porosity and permeability estimation

2018 ◽  
Author(s):  
Martin Staněk ◽  
Yves Géraud
Keyword(s):  
Mercury Intrusion Porosimetry ◽  
Fluorescent Light ◽  
Fracture Density ◽  
Void Space ◽  
Mercury Intrusion ◽  
Fine Grained ◽  
Mineral Phases ◽  
Space Geometry ◽  
Porosity And Permeability ◽  
The Difference

Abstract. Several alteration facies of fractured Lipnice granite are studied in detail on borehole samples by means of mercury intrusion porosimetry, polarized and fluorescent light microscopy and microprobe chemical analyses. The goal is to describe the granite void space geometry in vicinity of fractures with alteration halos and to link specific geometries with simply detectable parameters to facilitate quick estimation of porosity and permeability based on e.g. drill cuttings. The core of the study are results of porosity and throat size distribution analyses on 21 specimens representing unique combinations of fracture-related structures within 6 different alteration facies basically differing in secondary phyllosilicate chemistry and porosity structure. Based on a simple model to calculate permeability from the measured porosities and throat size distributions the difference in permeability between the fresh granite and the most fractured and altered granite is 5 orders of magnitude. Our observations suggest that the porosity, the size of connections and the proportion of crack porosity increase with fracture density, while precipitation of iron-rich infills as well as of fine grained secondary phyllosilicates acts in the opposite way. Different styles and intensities of such end-member agents shape the final void space geometry and imply various combinations of storage, transport and retardation capacity for specific structures. The study also shows the possibility to use the standard mercury intrusion porosimetry with advanced experimental setting and data treatment to distinguish important differences in void space geometry within a span of few per cent of porosity.

scholarly journals Boudinage in Glacier Ice — Some Examples

1975 ◽  
Vol 14 (72) ◽  
pp. 383-393 ◽  
Author(s):  
M. J. Hambrey ◽  
A. G. Milnes
Keyword(s):  
Compressive Strain ◽  
Coarse Grained ◽  
Planar Anisotropy ◽  
Fine Grained ◽  
Or Groups ◽  
First Results ◽  
Glacier Ice ◽  
Strain Axis ◽  
The Difference ◽  
Shear Planes

Boudinage structures have only rarely been reported in glacier ice, yet they seem to be widespread in Swiss glaciers. They form in debris-free, strongly foliated ice by the stretching, necking and rupture of layers or groups of layers, when the principal compressive strain axis lies at a high angle to the layering. Two main types of boudinage are distinguished. The first results from the difference in competence between fine-grained and coarse-grained ice, and indicates that the former is more resistant to flow than the latter. The second occurs in more equigranular ice which shows a strong planar anisotropy; associated with the necking of such ice is the development of shear planes, along which the layers are displaced. As in deformed rocks, it is not possible to determine the directions of the finite principal strain axes from the boudinage structures alone. Although the boudins described here all occur in longitudinal foliation, it is suggested that they are likely to form in other situations also.

How to construct a case of Alzheimer's disease in three languages: case-based reasoning in narrative gerontology

2012 ◽  
Vol 34 (2) ◽  
pp. 280-309 ◽  
Author(s):  
ROBERT W. SCHRAUF ◽  
MADELYN IRIS ◽  
ELLEN NAVARRO ◽  
TETYANA SMOTROVA
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Soviet Union ◽  
Mexican Americans ◽  
Former Soviet Union ◽  
The United States ◽  
Case Based Reasoning ◽  
Fine Grained ◽  
The Difference ◽  
Case Based

ABSTRACTThis paper explores how people reason about Alzheimer's disease by telling stories about others who have the disease. More specifically, the paper is a cross-linguistic investigation of the narrative and linguistic devices used by African Americans in English, Mexican Americans in Spanish, and refugees/immigrants from the former Soviet Union (to the United States of America) in Russian in their oral productions of such stories. We examine the narratives as instances of case-based reasoning in which lay people (non-medical professionals) distinguish, represent and ‘perform’ symptomatic behaviours and construct a ‘case’ of the disease as a way of probing the difference between the normal and the pathological in conversational contexts. In particular, we examine situations in which stories are accepted and confirmed and situations in which stories are contested and negotiated. Common narrative and discursive devices across the three languages include concatenation, intertextuality, conjunction and conjunctive adverbs, lexical opposition, past progressive tenses, temporal adverbials, reported speech and prosodic cues. The fine-grained analysis of these narrative and discursive devices lays bare the inner-workings of case-based reasoning as a conversational task and suggests specific linguistic tools for intervening in lay narrative reasoning in clinical settings and in public health messaging about Alzheimer's disease.

scholarly journals The use of spectral natural gamma-ray analysis in reservoir evaluation of siliciclastic sediments: a case study from the Middle Jurassic of the Harald Field, Danish Central Graben

2003 ◽  
Vol 1 ◽  
pp. 349-366 ◽  
Author(s):  
Ida L. Fabricius ◽  
Louise Dahlerup Fazladic ◽  
Armgard Steinholm ◽  
Uffe Korsbech
Keyword(s):  
Middle Jurassic ◽  
Gamma Ray ◽  
Clay Content ◽  
Heavy Minerals ◽  
Reservoir Evaluation ◽  
Fine Grained ◽  
Natural Gamma ◽  
The Difference ◽  
Siliciclastic Sediments ◽  
Quartz Grains

Danish Central GrabenA cored sandstone interval from the Middle Jurassic Harald Field of the Danish North Sea was chosen for an investigation of the mineralogical sources for the gamma-ray activity, and with the purpose of determining how the Spectral Natural Gamma (SNG) log could be used as an indicator of reservoir quality. Core intervals of quartz arenites and quartz wackes were selected. Although no linear relationship was found between clay content and potassium (K), thorium (Th), or uranium (U), the K content characterises three discrete lithofacies. Lithofacies I has a grain-supported texture, with a predominance of quartz grains; only minor fine-grained matrix is present. Sandstones of lithofacies I have a low K content and most of the K is hosted in feldspar. Porosity varies between 23% and 28% and permeability is in the range 200–2000 mD. Lithofacies II sandstones have a grain-supported texture, with a predominance of quartz grains; fine-grained matrix fills the intergranular volume. Sandstones of lithofacies II have an intermediate K content, with K-feldspar, mica, and illite as the main sources. Porosity varies between 11% and 17% and permeability is in the range 0.4–25 mD. Lithofacies III has a matrix-supported texture with quartz grains floating in a clay-rich matrix. Samples from lithofacies III have the highest K signal. Illite and illitised kaolinite are roughly equal in importance as sources of K. Porosity is up to 11% and permeability up to 0.5 mD. The Th and U content of all lithofacies is governed primarily by the presence of heavy minerals; no apparent general relationship between U and Total Organic Carbon (TOC) was found. Comparisons between the core measurements of K, Th, and U, and the SNG log disclosed a discrepancy between the calibrations of laboratory and borehole measurements. For U the discrepancy contains an erratic element, whereas the difference for K and Th can be eliminated by correction factors. Thus, the conclusions based on laboratory measurements appear to be applicable to the log data, and, using corrected K values, the facies subdivision can be extended throughout the reservoir section based on the SNG log.

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