Browsing by Subject "Accuracy"
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- PublicationOpen AccessA complexity-effective local delta prefetcher(Institute of Electrical and Electronics Engineers, 2025-01-31) Navarro-Torres, Agustín; Panda, Biswabandan; Alastruey-Benedé, Jesús; Ibáñez, Pablo; Viñals-Yúfera, Víctor; Ros Bardisa, Alberto; Ingeniería y Tecnología de ComputadoresData prefetching is crucial for performance in modern processors by effectively masking long-latency memory accesses. Over the past decades, numerous data prefetching mechanisms have been proposed, which have continuously reduced the access latency to the memory hierarchy. Several state-of-the-art prefetchers, namely Instruction Pointer Classifier Prefetcher (IPCP) and Berti, target the first-level data cache, and thus, they are able to completely hide the miss latency for timely prefetched cache lines. Berti exploits timely local deltas to achieve high accuracy and performance. This paper extends Berti with a larger evaluation and with extra optimizations on top of the previous conference paper. The result is a complexity-effective version of Berti that outperforms it for a large amount of workloads and simplifies its control logic. The key for those advancements is a simple mechanism for learning timely deltas without the need to track the fetch latency of each cache miss. Our experiments conducted with a wide range of workloads (CVP traces by Qualcomm, SPEC CPU2017, and GAP) show performance improvements by 4.0% over a mainstream stride prefetcher, and by a non-negligible 1.4% over the previously published version of Berti requiring similar storage.
- PublicationOpen AccessAnalysing the AD process. Creativity, accuracy and experience(ZHAW, 2020-01) Ramos Caro, Marina; Rojo López, Ana María; Traducción e InterpretaciónThe study of audio description (AD) has flourished over the last decade to become a broad research area in its own right. However, experimental research on the processes involved in the creation of AD is still scarce. More specifically, the study of describers’ psychological traits has so far been a rather unexplored area in the field. The present study focuses on creativity as one of the main professional competencies required for AD. In order to study the relationship between creativity, accuracy and experience, we recruited 10 professional describers and measured their creativity through a validated creativity test. They were then asked to create AD scripts for four highly poetic scenes. Their performance was analysed in terms of the accuracy and subjectivity of the texts. Our results show that more experienced describers are more creative, less subjective and more accurate when creating their descriptions.
- PublicationOpen AccessBerti: An Accurate Local-Delta Data Prefetcher(IEEE, 2022-10) Navarro-Torres, Agustín; Panda, Biswabandan; Alastruey-Benedé, Jesús; Ibáñez, Pablo; Viñals-Yúfera, Victor; Ros, Alberto; Ingeniería y Tecnología de ComputadoresData prefetching is a technique that plays a crucial role in modern high-performance processors by hiding long latency memory accesses. Several state-of-the-art hardware prefetchers exploit the concept of deltas, defined as the difference between the cache line addresses of two demand accesses. Existing delta prefetchers, such as best offset prefetching (BOP) and multi-lookahead prefetching (MLOP), train and predict future accesses based on global deltas. We observed that the use of global deltas results in missed opportunities to anticipate memory accesses. In this paper, we propose Berti, a first-level data cache prefetcher that selects the best local deltas, i.e., those that consider only demand accesses issued by the same instruction. Thanks to a high-confidence mechanism that precisely detects the timely local deltas with high coverage, Berti generates accurate prefetch requests. Then, it orchestrates the prefetch requests to the memory hierarchy, using the selected deltas. Our empirical results using ChampSim and SPEC CPU2017 and GAP workloads show that, with a storage overhead of just 2.55 KB, Berti improves performance by 8.5% compared to a baseline IP-stride and 3.5% compared to IPCP, a state-of-the-art prefetcher. Our evaluation also shows that Berti reduces dynamic energy at the memory hierarchy by 33.6% compared to IPCP, thanks to its high prefetch accuracy.
- PublicationOpen AccessCreativity and Translation Quality: Opposing Enemies or Friendly Allies?(2018) Rojo López, Ana M.; Meseguer Cutillas, Purificación; Traducción e InterpretaciónIn recent years, placing the translator’s agency at the fore of creativity research has drawn the scholars’ attention towards the need to define the role of individual personality traits in creativity in the translation process. But many questions still remain as to the role that a creative personality may play in the translation process and the final quality of translation performance. The study proposed here specifically aims to investigate the consequences of a creative profile for translation performance. The experiment correlates the scores of forty Spanish professional translators on a validated creativity personality test with their scores on product indicators of creativity. Translations were rated for accuracy and creativity by two different examiners. Results of the study suggest that creative intelligence plays a role in guiding translational behaviour, directing the translator’s attention and fostering flexible thinking, but does not necessarily guarantee higher quality in terms of number of translation errors.
- PublicationOpen AccessDesign and application of a test to measure the accuracy of receiving in volleyball using the forearm pass for female students(Universidad de Murcia, Servicio de Publicaciones, 2022) Fadil, Asmaa HikmetThe primary aim of this study was to design and apply a test to measure the accuracy of receiving in volleyball using the forearm pass for female students. In the current study, third year students of the College of Physical Education and Sports Sciences of the University of Baghdad were recruited as the participants of the study in the academic year 2018/2019. A total of 73 female students were recruited. Based on the findings of this study, the researcher concluded that the accuracy of receiving in volleyball using the forearm pass for the female students analyzed was below average, as most of them showed below average performance. The researcher recommends to adopt the test prepared in this study to assess the level of accuracy of female students, in order to determine their degree of development. The researcher also recommends to pay attention to the development of accuracy among students by giving them more time to train accuracy during the volleyball lessons.
- PublicationOpen AccessEvaluación del reanalysis (NCEP/NCAR) para el estudio de la variabilidad termo-pluviométrica del Noroeste Argentino.(Universidad de Murcia, Servicio de Publicaciones, 2022) Ferrelli, Federico; Brendel, Andrea Soledad; Piccolo, María CintiaEl objetivo de esta investigación fue evaluar la precisión del reanálisis NCEP/NCAR para la caracterización de la variabilidad termo-pluviométrica del Noroeste Argentino. Series meteorológicas obtenidas de observatorios meteorológicos del área de estudio y modeladas del período 1960-2020 fueron estudiadas con técnicas estadísticas estándar (valores medios, desvíos, máximos, mínimos, etc). Posterior a la verificación del método Kriging como el método más adecuado para interpolar la información espacial, se analizó la temperatura y la precipitación. Un análisis de regresión cuantílica se aplicó a las series de tiempo. Para ello, las series fueron divididas en diez cuantiles y se evaluaron sus ajustes. Los resultados para ambas variables presentaron ajustes estadísticos significativos (p < 0,05), indicando que los datos del modelo Reanálisis permiten caracterizar la distribución espacial de estas variables. La temperatura del aire registró mejores resultados que la precipitación. Sin embargo, al estudiar los eventos extremos, se observaron diferencias importantes. La temperatura mostró buenos ajustes (p < 0,05) en los climas templados, seguidos por los climas áridos. La precipitación mostró ajustes significativos en los cuantiles medios, pero no así en los cuantiles extremos. Los resultados demostraron que el Reanalysis permite estudiar las características climáticas de la región NOA, pero no sus eventos extremos térmicos y pluviométricos. Además, esta base de datos es esencial para el estudio del clima a escala regional y para el diseño de planes de ordenamiento del territorio.
- PublicationRestrictedFeedback timing and engagement with feedback. Effects on L2 written accuracy(Taylor and Francis Group, 2026-05-04) Nicolás Conesa, Florentina; Cerezo García, María Lourdes; McBride, Sophie; Didáctica de la Lengua y la Literatura; Facultades de la UMU::Facultad de EducaciónA substantial body of research has demonstrated the benefits of written corrective feedback (WCF) for L2 written accuracy (see meta-analyses such as Kang & Han); however, comparatively few studies have experimentally examined the effectiveness of feedback in different timing conditions or how learners engage with feedback provided at different times. Yet, understanding when feedback is most beneficial and how feedback timing shapes learners’ engagement with corrections is pedagogically essential, as it can help learners maximize their opportunities to notice and integrate corrections into their evolving L2 linguistic system. The present study employs a mixed-methods design to compare learners’ engagement with WCF and accuracy improvement under three timing conditions: (i) immediate synchronous WCF (during writing), (ii) delayed synchronous WCF, and (iii) asynchronous WCF. Twenty advanced EFL university students completed two writing tasks, processed unfocused indirect WCF, completed audio-recorded questionnaires on their engagement with WCF, and revised their texts using screencast technology to capture real-time engagement and changes in accuracy. All groups significantly improved accuracy, with no advantage for synchronous or delayed synchronous over asynchronous feedback. All participants were similarly engaged, but different patterns of engagement were found because of different feedback timing conditions. These findings suggest that advanced learners can benefit equally from different feedback timing conditions using unfocused indirect feedback. Methodological and pedagogical implications are drawn.
- PublicationOpen AccessStudy of accuracy and grammatical complexity in EFL writing(2018-07-04) Lahuerta, Ana CristinaThe aim of the present study is to compare the writing products of English as a Foreign Language (EFL) university students using accuracy and grammatical complexity as measures. It also aims at examining the development of the morphological, syntactic, lexical, spelling, and punctuation errors committed by these learners when writing in English. Students enrolled in a University Degree in Modern Languages and their Literatures participated in the study. They were divided into advanced and upper intermediate according to their Oxford Placement Test score. Compositions were collected as the basis of this study. Results show that upper intermediate students exhibited a higher error mean in each of the error categories, namely, grammatical morphemes, lexical choice and syntax, as well as punctuation and spelling. However, an analysis of variance shows the differences between groups to be significant only in spelling and punctuation errors.
- PublicationOpen AccessThe impact of adjunct instruction on EFL academic writing at university(John Benjamins Publishing, 2024-02-02) Roquet Pugès, Helena; Navarro Gil, Noelia; Nicolás Conesa, Florentina; Didáctica de la Lengua y la LiteraturaAdjunct instruction (AI), a form of content-based instruction, can provide students with opportunities to learn disciplinary discourse in context. Few studies have explored the extent to which AI affects students’ written production over time. This study aims to analyze the impact of a 60-hour AI course in English on writing complexity, accuracy, fluency (CAF) and on holistic measures in two groups with different exposure to English. The participants were 51 first-year Dentistry students from two strands, English-Medium of Instruction (EMI) (n = 21) and first language (L1 Catalan/Spanish) (n = 30). After 60 hours of AI, the EMI+AI group improved lexical diversity, while the L1+AI group improved accuracy and some holistic measures. Correlations between CAF and holistic measures indicate defining features of second language writing in each strand. The benefits of adjunct instruction for writing development are discussed in the light of the two settings explored. ------------------------
- PublicationRestrictedEl uso de fuentes documentales y su impacto en la creatividad del estudiante de traducción e interpretación(John Benjamins Publishing Company, 2023-05-10) Rojo López, Ana María; Meseguer Cutillas, Purificación; Arqués Abellán, Paula; Traducción e InterpretaciónEl presente artículo pretende explorar el impacto que la documentación y la inteligencia creativa tienen a la hora de resolver retos creativos literarios. Para ello se diseñó un estudio experimental con estudiantes de traducción e interpretación en el que, divididos en dos grupos, debían traducir tres fragmentos que contenían retos creativos. Uno de los grupos tenía acceso a recursos de documentación; el otro, no. Nuestra hipótesis de partida predecía que el uso de herramientas de documentación daría lugar a soluciones menos creativas, pero más precisas, así como que las puntuaciones de los participantes en la prueba de creatividad se correlacionarían con las puntuaciones asignadas a la creatividad de sus soluciones. Los resultados del estudio mostraron que las puntuaciones asignadas a la creatividad de las soluciones eran más altas en el grupo sin acceso a la documentación. Sin embargo, en cuanto a la precisión de las soluciones, nuestra hipótesis solo se corroboró para el parámetro de corrección. -----------------------
- ItemOpen AccessUtilization of optical heart rate and electrocardiogram sensors as signal indicators during exercise in woodball(Servicio de Publicaciones. Universidad dde Murcia, 2026) Utamayasa, I Gede Dharma; Harwanto; Kusuma, Angga Indra; Sin departamento asociadoThis study aimed to examine the effectiveness of optical heart rate (OHR) and electrocardiogram (ECG) sensors as signal indicators in sports, particularly in the woodball game. The relevant and chosen approach was quantitative research with a quasi-experimental method using a matching-only design. The study involved a total of 64 participants (mean age 15.2±1.5 years; mean height 165.4±6.2 cm; mean weight 58.3±7.8 kg; BMI 21.3±2.1 kg/m²), divided equally into two groups: 32 athletes in the experimental group and 32 athletes in the control group. Treatment for the experimental group involved gate-in-one stroke training and 24-gate competition training using OHR and ECG sensors in the form of fitness trackers. Meanwhile, the control group followed only the conventional training routines conducted by each club. Data collection techniques using pre-test and post-test in this study employed a gate-in-one stroke test instrument. The results of this study indicated that OHR and ECG sensors, packaged in the form of a fitness tracker, can significantly support athletes in conducting sports activities (p=0.032), showing a meaningful improvement in performance and accuracy in woodball. Relating to this, the technology can have a significant effect on improving skills, especially accuracy in the woodball game. In conclusion, OHR and ECG sensors can serve as signal indicators during exercise in sports.
- PublicationOpen AccessValidity and reliability of an eight antennae ultra-wideband local positioning system to measure performance in an indoor environment(Taylor & Francis, 2020-11-18) Bastida-Castilla, Alejandro; Gómez-Carmona, Carlos David; Rico-González, Markel; Pino Ortega, José; Actividad Física y Deporteoad and positioning. One of the most important parameters to guarantee accurate measurements with radiofrequency systems is the number of reference nodes used to calculate player position. However, the accuracy of ultra-wideband (UWB) technology has only been analysed with 6 antennae. So, the purpose of the present study was to analyse the accuracy and inter-unit reliability of an UWB system with eight antennae. Three well-trained males covered 18 trajectories for the analysis of x- and y- coordinate accuracy assessment related to the positional variation among eight antennae UWB data and lines on a basketball court. This was achieved using geographical information system mapping software that calculated, for each interval and participant, the distance from the main axis of locomotion and the opposite side of the field every 0.5 s. The results showed that this is a valid system (Mean = 0.03 m; magnitude differences = 0.21% with real measures as reference; % CV <1% in all cases) for measuring locomotion and positioning. Besides, the inter-unit, test-retest and inter-subject analysis did not influence the reliability results. So, an eight antennae UWB system can be considered suitable for locomotion and positioning in an indoor environment.
- PublicationOpen AccessVisual spatial attention and its impact on the accuracy of the diagonal spike in volleyball(Universidad de Murcia, Servicio de Publicaciones, 2022) Naji Zwayen, JinanThe primary aim of this research was to study visual spatial attention and its impact on the accuracy of the diagonal spike in volleyball. A total of 20 volleyball players of Baghdad participated in this study. The sample was homogeneous in terms of height, weight and age of the players. The tests used in the present study were: 1) Visual Spatial Attention Test. 2) Volleyball Spike Test. Based on the findings of the study, the researcher concluded that visual spatial attention has a significant impact on the accuracy of the diagonal spike in volleyball.