Miracle-dz/UniFAR-FTUs huggingface dataset:
Iio-eecient Algorithms for Problems on Grid-based Terrains Extended Abstract

The potential and use of Geographic Information Systems (GIS) is rapidly increasing due to the increasing availability of massive amounts of geospatial data from projects like NASA's Mission to Planet Earth. However, the use of these massive datasets also exposes scalability problems with existing GIS algorithms. These scalability problems are mainly due to the fact that most GIS algorithms have been designed to minimize internal computation time, while I/O communication often is the bottleneck when processing massive amounts of data. In this paper, we consider I/O-e cient algorithms for problems on grid-based terrains. Detailed grid-based terrain data is rapidly becoming available for much of the earth's surface. We describe O( B logM=B N B ) I/O algorithms for several problems on p N by p N grids for which only O(N) algorithms were previously known. Here M denotes the size of the main memory and B the size of a disk block. We demonstrate the practical merits of our work by comparing the empirical performance of our new algorithm for the ow accumulation problem with that of the previously best known algorithm. Flow accumulation, which models ow of water through a terrain, is one of the most basic hydrologic attributes of a terrain. We present the results of an extensive set of experiments on real-life terrain datasets of di erent sizes and characteristics. Our experiments show that while our new algorithm scales nicely with dataset size, the previously known algorithm \breaks down" once the size of the dataset becomes bigger than the available main memory. For example, while our algorithm computes the ow accumulation for the Appalachian Mountains in about three hours, the previously known algorithm takes several weeks. Supported in part by the National Science Foundation through ESS grant EIA{9870734. Email: large@cs.duke. edu. Supported in part by the U.S. Army Research O ce through MURI grant DAAH04{96{1{0013 and by the National Science Foundation through ESS grant EIA{9870734. Email: laura@cs.duke. edu. Supported in part by the U.S. Army Research O ce through MURI grant DAAH04{96{1{0013 and by the National Science Foundation through grants CCR{9522047 and EIA{9870734. Email: jsv@cs.duke. edu.
Algorithms forProblems on Grid-based

The potential and use of Geographic Information Systems (GIS) is rapidly increasing due to the increasing availability of massive amounts of geospatial data from projects like NASA's Mission to Planet Earth. However, the use of these massive datasets also exposes scalability problems with existing GIS algorithms. These scalability problems are mainly due to the fact that most GIS algorithms have been designed to minimize internal computation time, while I/O communication often is the bottleneck when processing massive amounts of data. In this paper, we consider I/O-eecient algorithms for problems on grid-based terrains. Detailed grid-based terrain data is rapidly becoming available for much of the earth's surface. We describe O(N B log M=B N B) I/O algorithms for several problems on p N by p N grids for which only O(N) algorithms were previously known. Here M denotes the size of the main memory and B the size of a disk block. We demonstrate the practical merits of our work by comparing the empirical performance of our new algorithm for the ow accumulation problem with that of the previously best known algorithm. Flow accumulation, which models ow of water through a terrain, is one of the most basic hydrologic attributes of a terrain. We present the results of an extensive set of experiments on real-life terrain datasets of diierent sizes and characteristics. Our experiments show that while our new algorithm scales nicely with dataset size, the previously known algorithm \breaks down" once the size of the dataset becomes bigger than the available main memory. For example, while our algorithm computes the ow accumulation for the Appalachian Mountains in about three hours, the previously known algorithm takes several weeks. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for proot or direct commercial advantage and that copies show this notice on the rst page or initial screen of a display along with the full citation. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, to redistribute to lists, or to use any component of this work in other works, requires prior speciic permission and/or a fee. Permissions may be requested from Publications
Understanding the role of aliovalent cation substitution on the li-ion diffusion mechanism in Li6+xP1−xSixS5Br argyrodites

Due to their high ionic conductivity, lithium-ion conducting argyrodites show promise as solid electrolytes for solid-state batteries. Aliovalent substitution is an effective technique to enhance the transport properties of Li6PS5Br, where aliovalent Si substitution triples ionic conductivity. However, the origin of this experimentally observed increase is not fully understood. Our density functional theory (DFT) study reveals that Si4+ substitution increases Li diffusion by activating Li occupancy in the T4 sites. Redistribution of Li-ions within the lattice results in a more uniform distribution of Li around the T4 and neighboring T5 sites, flattening the energy landscape for diffusion. Since the T4 site is positioned in the intercage jump pathway, an increase in the intercage jump rate is found, which is directly related to the macroscopic diffusion and bulk conductivity. Analysis of neutron diffraction experiments confirms partial T4 site occupancy, in agreement with the computational findings. Understanding the aliovalent substitution effect on interstitials is crucial for improving solid electrolyte ionic conductivity and advancing solid-state battery performance.
Hydrodynamic Efﬁciency Analysis of a Flexible Hydrofoil Oscillating in a Moderate Reynolds Number Fluid Flow

: The paper focuses on the study of a semi-activated system, based on a combination of two movements of forced pitching and free-heaving motion. Therefore, quantifying with accuracy the hydrodynamic forces applied on the hydrofoil seems to be crucial. This is investigated throughout a numerical analysis of the hydrofoil dynamics. The deformable structure is oscillating in a low-Reynolds number ﬂow. In this study, a hydrofoil animated by a combined forced pitching and heaving movements is considered. Various materials of the hydrofoil structure are studied, from the rigid material to a more ﬂexible one. A partitioned implicit coupling approach is applied in order to consider the Fluid-Structure Interaction (FSI) effects, while the Navier–Stokes equations are solved using the Arbitrary Lagrangian–Eulerian (ALE) method. Both the viscous incompressible Navier–Stokes equations and the elasticity equation are solved using ﬁnite volume method. The study is based on the analysis of the hydrodynamic loads acting on the structure. Therefore, the induced dynamics and the power coefﬁcient of the structure are investigated. It is shown that the ﬂexibility of the hydrofoil has an effect on its hydrodynamic behavior. Indeed it increases the load ﬂuctuations and the horizontal mean force component. Furthermore, the unsteady vortices around the hydrofoil are highly impacted by its deformations. Finally, the structure deformations mostly improve the device energy efﬁciency.
Radar-Only Odometry and Mapping for Autonomous Vehicles

—Odometry and mapping play a pivotal role in the navigation of autonomous vehicles. In this paper, we address the problem of pose estimation and map creation using only radar sensors. We focus on two odometry estimation approaches followed by a mapping step. The first one is a new point-to-point ICP approach that leverages the velocity information provided by 3D radar sensors. The second one is advantageous for 2D radars with a low number of samples, and particularly useful for scenarios where the sensor is being blocked by large dynamic obstacles. It exploits a constant velocity filter and the measured Doppler velocities to estimate the vehicle’s ego-motion. We enrich this with a filtering step to improve the accuracy of the points in the resulting map. We put our work to the test using the View of Delft and NuScenes datasets, which involve 3D and 2D radar sensors. Our findings illustrate state-of-the-art performance of our odometry techniques in terms of accuracy when compared to existing alternatives. Moreover, we demonstrate that our map filtering methodology achieves higher similarity rates than the raw unfiltered map when benchmarked against a corresponding LiDAR map.
Assessment of the right ventricular function before and after Assessment of the right ventricular function before and after coronary artery bypass surgery by conventional and tissue coronary artery bypass surgery by conventional and tissue Doppler echocardiography Doppler echocardiography

Aim of the work : To study the extent of right ventricular (RV) dysfunction in ischemic patients after coronary artery bypass grafting (CABG). Patients and methods : RV function was studied preoperatively and followed for 1 month postoperatively in 40 patients who were scheduled for elective coronary artery bypass surgery and in other 40 controls. We evaluated RV function by tissue Doppler study of the tricuspid annulus and the basal septum, tricuspid annular plane systolic excursion, and RV dimensions. Both LV dimensions, left atrium dimensions, and aortic root dimensions were also measured before and after surgery. Results : RV function was signi ﬁ cantly reduced after CABG as assessed by pulsed-wave tissue Doppler imaging in both the tricuspid annulus and the basal septum. There was also a signi ﬁ cant reduction of tricuspid annular plane systolic excursion after CABG, but there was no signi ﬁ cant difference in RV dimensions. Moreover, LVEDD was signi ﬁ cantly reduced after CABG. Conclusion : RV systolic function was reduced after CABG and remained depressed for 1 month postoperatively.
The characterization and comorbidities of heterozygous Bardet-Biedl syndrome carriers

Introduction: Bardet-Biedl syndrome (BBS) is a rare autosomal recessive disorder with clinical features of retinal dystrophy, obesity, postaxial polydactyly, renal anomalies, learning disabilities, hypogonadism, and genitourinary abnormalities. Nevertheless, previous studies on the phenotypic traits of BBS heterozygous carriers have generated inconclusive results. The aim of our study was to investigate the impact of BBS heterozygosity on carriers when compared to non-carriers within the Taiwanese population. Materials and Methods: This study follows a hospital-based case-control design. We employed the Taiwan Biobank version 2 (TWBv2) array to identify three specific loci associated with BBS (rs773862084, rs567573386, and rs199910690). In total, 716 patients were included in the case group, and they were compared to a control group of 2,864 patients who lacked BBS alleles. The control group was selected through gender and age matching at a ratio of 1:4. The association between BBS-related loci and comorbidity was assessed using logistic regression models. Results: We found that BBS heterozygous carriers exhibited a significant association with elevated BMI levels, especially the variant rs199910690 in MKS1 (p=0.0037). The prevalence of comorbidities in the carriers' group was not higher than that in the non-carriers' group. Besides, the average values of the biochemistry data showed no significant differences, except for creatinine level. Furthermore, we conducted a BMI-based analysis to identify specific risk factors for chronic kidney disease (CKD). Our findings revealed that individuals carrying the CA/AA genotype of the BBS2 rs773862084 variant or the CT/TT genotype of the MKS1 rs199910690 variant showed a reduced risk of developing CKD, irrespective of their BMI levels. When stratified by BMI level, obese males with the MKS1 rs199910690 variant and obese females with the BBS2 rs773862084 variant exhibited a negative association with CKD development. Conclusion: We found that aside from the association with overweight and obesity, heterozygous BBS mutations did not appear to increase the predisposition of individuals to comorbidities and metabolic diseases. To gain a more comprehensive understanding of the genetic susceptibility associated with Bardet-Biedl Syndrome (BBS), further research is warranted
How to mitigate ﬂood events similar to the 1979 catastrophic ﬂoods in the lower Tagus

The ﬂoods that struck the lower Tagus valley in February 1979 correspond to the most intense ﬂoods in this river and affected the largest number of people in a river ﬂow event in Portugal during the last 150 years. In fact, the vast area affected signiﬁcantly impacted circa 10 000 people in the lower Tagus sector (and an additional 7000 in other regions of Portugal), including thousands of people evacuated or made homeless. In this context, the present study focuses on an in-depth analysis of this event from a hydrodynamic perspective by means of the Iber+ numerical model and on developing strategies to mitigate the ﬂood episodes that occur in the lower section of the Tagus River using the exceptional ﬂoods of February 1979 as
INQUERY and TREC-9

Abstract : This year the Center for Intelligent Information Retrieval (CIIR) at the University of Massachusetts participated in three of the tracks: the cross-language, question answering, and query tracks. We used approaches that were similar to those used in past years. Although UMass used a wide range of tools, from Unix shell scripts, to PC spreadsheets, three major tools and techniques were applied across almost all tracks: the Inquery search engine, query processing, and a query expansion technique known as LCA. All three tracks used Inquery as the search engine, sometimes for training, and always for generating the final ranked lists for the test. In the cross language track, we experimented some techniques for crossing the character encoding boundaries. Our efforts were moderately successful, but we do not believe that our approach worked well in comparison to other techniques. In the question answering track, we focused on bringing answer-containing documents to the top of the ranked list. This is an important sub-task for most methods of tackling Q&A, and we are pleased with our results. We are now looking at alternate ways of thinking about that task that leverage the differences between retrieval for Q&A and for IR. Finally, we continued to participate in the query track, providing large numbers of query variants, and running our system on the huge number of resulting queries. Our analysis showed how query expansion compensates for some of the problems that can occurs in query formulation.
MDM 2 case study : Computational protocol utilizing protein flexibility and data mining improves ligand binding mode predictions

Recovery of the P53 tumor suppressor pathway via small molecule inhibitors of oncoprotein MDM2 highlights the critical role of computational methodologies in targeted cancer therapies. Molecular docking programs in particular, have become essential during computeraided drug design by providing a quantitative ranking of predicted binding geometries of small ligands to proteins based on binding free energy. In this study, we found improved ligand binding mode predictions of small medicinal compounds to MDM2 based on RMSD values using AutoDock and AutoDock Vina employing protein binding site flexibility. Additional analysis suggests a data mining protocol using linear regression can isolate the particular flexible bonds necessary for future optimum docking results. The implementation of a flexible receptor protocol based on ‘a priori’ knowledge obtained from data mining will improve accuracy and reduce costs of high throughput virtual screenings of potential cancer drugs targeting MDM2.
Event-triggered ﬁxed-time stabilization of two time scales linear systems

—This paper investigates the ﬁxed-time stabilization of uncertain linear time-invariant systems exhibiting two time scales using a state-feedback event-triggered controller. We proceed by emulation and assume that we know a controller that solves the problem in the absence of sampling. We then take sampling into account and present an event-triggered strategy, which consists of two independent sampling mechanisms, associated with the slow and the fast subsystems, respectively. In this setting, the ﬁxed-time stability property becomes practical, where the adjustable parameters are constants used to deﬁne the triggering rules. The existence of a strictly positive time between any two successive transmissions is ensured for each transmission law. A numerical example is provided to illustrate the effectiveness of the results.
Investigation of the lack of common understanding in the discipline of enterprise architecture

Despite growing interest in the discipline of Enterprise Architecture (EA) around the world in recent years, EA suffers from a lack of common understanding because researchers and practitioners do not use a shared approach and terminology when describing EA, its application, methodology, process or outcomes. A few studies have conducted a deep analysis on the extent of this situation but they all have methodological limitations. The objective of this thesis was to fill this gap in applying well know methodological design and techniques to shed some light on the lack of common understanding in the discipline of EA. To achieve this objective, this thesis is subdivided in three complementary studies which treat each a specific aspect. The first study conducts a Systematic Mapping Study and identifies, and classifies, sources of variety in the literature which could be on the basis of the lack of common understanding in the discipline of EA. The second study conducts a Systematic Literature Review using concepts from the academic field of terminology and thematic analysis techniques and identifies sources of implicitness, incompleteness, complexity and incoherence in the definitions of EA which could be on the basis of the lack of common understanding. The third study conducts an opinion survey with EA practitioners analyzed with the help of exploratory data analysis techniques, and identifies different EA practitioners’ major worldviews regarding organizations and the people within them. The findings of this thesis contribute to a better knowledge of the lack of common understanding in the discipline of EA and provide a better possibility to deal with this lack, as implication for practitioners. These findings also provide relevant directions to researchers for future studies concerning this topic or using the methodological design and techniques applied. To continue clarifying the characteristics of the lack of common understanding of EA, this thesis recommends both researcher and practitioner to support more descriptive and experimental research which prioritize the practice of EA (EA evolution, EA measurement, practitioners’ role, practitioners’ worldviews, etc.), to pay more attention to the definition of EA they provide when they produce a new article, and to integrate all ways of approaching EA into a shared reference, even if they seem to be divergent and conflictual sometimes.
Genetic Polymorphism of Some BBRI Developed Rice Cultivars by SSR Markers

Genetic diversity and relationships among seven modern rice cultivars were evaluated using 299 SSR markers that covered the rice genome. A total of 405 alleles were detected at 165 polymorphic SSR loci and the number of alleles per marker ranged from 2 to 5, averaging of 2.45 alleles per locus. The band size for a given microsatellite locus variation between 73 bp (RM9) to 335 bp (RM539). Polymorphism information content (PIC) values ranged from 0.21 to 0.70, with an average of 0.36. Total 43 markers were found as highly informative on 12 chromosomes. Among them, marker RM437 showed the highest polymorphism followed by RM9, RM472, RM85, RM548, RM334, RM336, RM464, RM222 and RM229 which might be effectively used for genetic diversity and relationship study of rice. Comparatively higher genetic distance was observed between BRRI dhan47 and BRRI dhan50 genotypes pair than the other combinations. Cluster analyses were used to group cultivars by constructing dendrogram based on SSR marker analysis which grouped the ice cultivars into three groups, where cluster 1 contained only one cultivar, and cluster 2 and cluster 3 consists of three cultivars each. The results of the genetic diversity will be useful for the selection of the parents for developing a rice breeding program and will construct a genetic fingerprint for varietal identification and background selection during breeding program.
Physical Fitness Status of Tertiary Students under the New Physical Activity towards Health and Fitness (PATHFit) Course: A Quasi-Experimental Study

According to the latest findings of the World Health Organization (2022), most young people nowadays are deficient in fulfilling the global standard for moderate-to vigorous-intensity physical activities. Concurrently, the issue of girls being less active than boys in most countries, including the Philippines, remains. To address this health issue, the Philippines’ Commission on Higher Education (CHED) implemented the new Physical Activity Towards Health and Fitness (PATHFit) Courses. Thus, this study aimed to evaluate existing program models that focused on developing students’ cardiorespiratory and muscular fitness. An exercise model underwent a quasi-experimental analysis using three fitness tests: Prone Bridge Test (PBT), 3-minute Step Test (STEP), and Wall Squat (WS). Results revealed that participants showed significant improvement after the 12-week fitness program, with p<0.01 in PBT, STEP, and WS scores. However, while differences in means were all significant (N=155), Cohen’s d results show that small to medium effects occurred for the three performance test scores after the treatment period. Effects also showed that female participants still exhibited lower effect magnitudes. These findings recommend developing innovative exercise models incorporating health motivation and gamification. It is also suggested that tertiary PE consider modified models for female students, addressing their sports fitness needs and attraction to sports participation. Lastly, the Philippine Commission should vigilantly endorse tertiary program models following the availability of exercise and sports scientists in institutes, effectively implementing PATHFit on the ground and improving the overall sports fitness of students.
Practical Lattice-based

: Among the various post-quantum techniques that exist (such as multivariate, code or hash-based), the most promising is lattice-based cryptography, which has become a very viable alternative to number-theoretic cryptography. Its main advantage is that it allows for extended functionality and is, at the same time, more efficient for the basic primitives of public-key encryption and digital signatures. The focus of this presentation will be to survey recent developments in lattice-based digital signature schemes and in particular practical schemes that have been shown to improve upon the performance of equivalent RSA designs. Propositions for future research areas that are essential for the continued development of lattice-based cryptography will also be discussed.