Wyniki wyszukiwania - Biblioteka Nauki

1

Le feedback correctif dans les productions écrites en FLE

100%

Rougier N.

Glottodidactica

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2014

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tom 41

|

nr 1

113-127

DE

The purpose of this paper is to identify the objectives pursued by teachers whencorrecting learners writings and show that the type of feedback used to this end is essentially the direct feedback, while other forms of feedback, presented here, are neglected. On the other hand, it seems that neither in practice nor in research corrective feedback specifically adapted to the correction of non-formal errors has been developed so far.

2

USING COMPUTER-MEDIATED CORRECTIVE FEEDBACK MODES IN DEVELOPING STUDENTS’ WRITING PERFORMANCE

100%

Al-Olimat S. I. , AbuSeileek A. F.

Teaching English with Technology

|

2015

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tom 15

|

nr 3

3-30

EN

This study explored the effect of computer-mediated corrective feedback on the 10th grade EFL students’ performance in the writing skill. Seventy-two 10th grade female students at Al Hammra secondary school for girls situated in Mafraq (Jordan) were selected as the study sample. They were randomly assigned into four groups, three experimental groups (18 in each) and one control group (18 students). The three experimental groups were taught using the computer-mediated corrective feedback modes including teachers’ feedback (students who received feedback only from the teacher), students’ feedback (students who provided and received feedback from their peers), and both (students who received and provided feedback from students and teacher). The control group was taught using computer-mediated communication. However, it neither provided nor received corrective feedback. Findings of the study reveal that there were significant differences between the mean scores of the control group and the experimental groups due to the method of teaching in favor of the experimental groups which received corrective feedback. Furthermore, the findings revealed that there was a significant effect for the mean scores between teachers’ feedback, students’ feedback or both, in favor of both where students received corrective feedback from their peers and the teacher.

3

Metody poprawy dokładności kompasu elektronicznego

100%

Surdej Ł.

Spektrum

|

2011

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tom nr 7-8

VII-X

PL

Podano charakterystykę błędów w kompasach elektronicznych. Wyszczególniono metody korekcji błędów. Opisano przeprowadzone badania eksperymentalne i wykazano, że w celu poprawy dokładności kompasu elektronicznego należy skupić się na precyzyjnym pomiarze pola magnetycznego i dokładnej korekcji przechyłów.

EN

Given is the characteristics of errors in electronic compasses. Specified are methods of error correction. Described are experimental investigations and proved is that with the aim to improve the accuracy of an electronic compass all research activities must be focused on precision measurement of magnetic field and thorough tilt correction.

4

The Counterbalance Approach to L2 Error Correction in the Classroom Setting

100%

Rychlewska A.

Anglica Wratislaviensia

|

2015

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nr 53

135 - 149

EN

Research on classroom interaction has recently gained prominence in the field of foreign language learning and teaching. The significance of the role assigned to corrective feedback varied with the disciplinary orientation of researchers, either depreciating its role and influence on the SLA process (e.g. Krashen 1982) or emphasizing the effectiveness of the procedure (e.g. Long 1991). The article examines both the traditional and new approaches of feedback understood as any kind of the teacher’s reaction that refers to and demands improvement of the learner utterance (Chaudron 1977). The main purpose of the study is to investigate the effectiveness of the error correction procedure based on the principles of The Counterbalance Hypothesis (Lyster and Mori 2006) in relation to the acquisition of the English articles system. The hypothesis assumes that a learner’s ability to notice the gap between the ill-formed utterances produced in their interlanguage and the target linguistic form is enhanced by the shift in their attentional focus from meaning to form in a meaning-focused context and from form to meaning in a form-oriented setting. The hypothesis proved effective which resulted in significantly better results in experimental groups. Thus, instructional activities such as corrective feedback should act as a counterbalance to a classroom’s predominant orientation, which represents a usual type of formal instruction used to present the teaching material, and is predicted to be more effective than interactional feedback, which is congruent with the predominant FL teaching methodology.

5

Correcting students' written grammatical errors: The effects of negotiated versus nonnegotiated feedback

100%

Nassaji H.

Studies in Second Language Learning and Teaching

|

2011

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tom 1

|

nr 3

315-334

XX

A substantial number of studies have examined the effects of grammar correction on second language (L2) written errors. However, most of the existing research has involved unidirectional written feedback. This classroom-based study examined the effects of oral negotiation in addressing L2 written errors. Data were collected in two intermediate adult English as a second language classes. Three types of feedback were compared: nonnegotiated direct reformulation, feedback with limited negotiation (i.e., prompt + reformulation) and feedback with negotiation. The linguistic targets chosen were the two most common grammatical errors in English: articles and prepositions. The effects of feedback were measured by means of learner-specific error identification/correction tasks administered three days, and again ten days, after the treatment. The results showed an overall advantage for feedback that involved negotiation. However, a comparison of data per error types showed that the differential effects of feedback types were mainly apparent for article errors rather than preposition errors. These results suggest that while negotiated feedback may play an important role in addressing L2 written errors, the degree of its effects may differ for different linguistic targets.

6

Performance Enhancement of Chaotic Error Correction Coding Using Consecutive Sequences

100%

Sahar A. H. , Abdullah H. N. , Saed T. R.

Journal of Telecommunications and Information Technology

|

2023

|

tom nr 2

10--16

EN

The use of chaotic dynamics for error correction is the subject of extensive research, as the approach allows to avoid the use of redundant data. This work proposes a new technique for non-coherent chaos communications for modifying error-correction depending on chaotic dynamics. In the proposed system, there are two consecutive sequences created from a comparable chaotic map, with the second series being created as the latest value of the initial one. Generation of a sequential chaotic sequence with a comparable chaotic dynamic delivers additional information to the receiver, allowing it to appropriately recover information and, hence, facilitate the receiver’s bit-error performance. For error correction and for detecting the symbol that is transmitted, a suboptimal technique based on the nearest distance between chaotic map trajectories over the n-dimensional sequence received is utilized. Simulation results show that the proposed error correction approach improves Eb/N0 as the dimension of the trajectory map increases, indicating that the method improves overall error correction performance. With the dimension of 4, a gain of 0.8 dB in Eb/N0 is achieved compared with an approach without any error-correcting schemes, at the bit-error probability of 10−3.

7

Correcting students’ written grammatical errors: The effects of negotiated versus nonnegotiated feedback

100%

Nassaji H.

Studies in Second Language Learning and Teaching

|

2011

|

tom 1

|

nr 3

315-334

EN

A substantial number of studies have examined the effects of grammar correction on second language (L2) written errors. However, most of the existing research has involved unidirectional written feedback. This classroom-based study examined the effects of oral negotiation in addressing L2 written errors. Data were collected in two intermediate adult English as a second language classes. Three types of feedback were compared: nonnegotiated direct reformulation, feedback with limited negotiation (i.e., prompt + reformulation) and feedback with negotiation. The linguistic targets chosen were the two most common grammatical errors in English: articles and prepositions. The effects of feedback were measured by means of learner-specific error identification/correction tasks administered three days, and again ten days, after the treatment. The results showed an overall advantage for feedback that involved negotiation. However, a comparison of data per error types showed that the differential effects of feedback types were mainly apparent for article errors rather than preposition errors. These results suggest that while negotiated feedback may play an important role in addressing L2 written errors, the degree of its effects may differ for different linguistic targets.

8

Correction Techniques Preferred by Students During the Process of Learning a Foreign Language

100%

Bargiel-Matusiewicz K. , Bargiel-Firlit A.

Psychology of Language and Communication

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2009

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tom 13

|

nr 1

39-52

EN

Mistakes can be seen as an integral and natural part of learning. This is true of the development of a child's first language as well as of second language learning by children and adults. Learning never proceeds without making errors. They appear naturally in linguistic development. The main aim of the research is to find out if and how the learners appreciate error correction. Besides, its goal is to provide qualitative data concerning learners' opinions, as well as bring some comments on errors in their own experience. The research results clearly indicate that students generally believe that making errors is one of the things they do while learning a foreign language. They agree that they can learn a lot from their mistakes. Almost 40% of the research subjects think that error correction is absolutely necessary, and a half of them see correction as very helpful. They value correction as a means of improvement. Most learners are not afraid of errors and treat them as something natural. However, almost half of the research subjects associate making a mistake with the feeling of guilt. They use an avoidance technique in order not to be laughed at when they make a mistake. Thus, errors should not be approached with hostility. It is better to view errors as the sign of a learner's progress rather than a sign of lack of knowledge.

9

The influence of temperature on errors of WIM systems employing piezoelectric sensor

100%

Gajda J. , Sroka R. , Zeglen T. , Burnos P.

Metrology and Measurement Systems

|

2013

|

tom Vol. 20, nr 2

171--182

EN

The paper provides analysis of the influence of temperature on the error of weigh-in-motion (WIM) systems utilizing piezoelectric polymer load sensors. Results of tests of these sensors in a climatic chamber, as well as results of long-term tests at the WIM site, are presented. Different methods for correction of the influence of changes in temperature were assessed for their effectiveness and compared.

10

The role of extensive recasts in error detection and correction by adult ESL students

88%

Hawkes L. , Nassaji H.

Studies in Second Language Learning and Teaching

|

2016

|

tom 6

|

nr 1

19-41

EN

Most of the laboratory studies on recasts have examined the role of intensive recasts provided repeatedly on the same target structure. This is different from the original definition of recasts as the reformulation of learner errors as they occur naturally and spontaneously in the course of communicative interaction. Using a within-group research design and a new testing methodology (video-based stimulated correction posttest), this laboratory study examined whether extensive and spontaneous recasts provided during small-group work were beneficial to adult L2 learners. Participants were 26 ESL learners, who were divided into seven small groups (3-5 students per group), and each group participated in an oral activity with a teacher. During the activity, the students received incidental and extensive recasts to half of their errors; the other half of their errors received no feedback. Students’ ability to detect and correct their errors in the three types of episodes was assessed using two types of tests: a stimulated correction test (a video-based computer test) and a written test. Students’ reaction time on the error detection portion of the stimulated correction task was also measured. The results showed that students were able to detect more errors in error+recast (error followed by the provision of a recast) episodes than in error-recast (error and no recast provided) episodes (though this difference did not reach statistical significance). They were also able to successfully and partially successfully correct more errors in error+recast episodes than in error-recast episodes, and this difference was statistically significant on the written test. The reaction time results also point towards a benefit from recasts, as students were able to complete the task (slightly) more quickly for error+recast episodes than for error-recast episodes.

11

The role of extensive recasts in error detection and correction by adult ESL students

88%

Hawkes L. , Nassaji H.

Studies in Second Language Learning and Teaching

|

2016

|

tom 6

|

nr 1

19-41

EN

Most of the laboratory studies on recasts have examined the role of intensive recasts provided repeatedly on the same target structure. This is different from the original definition of recasts as the reformulation of learner errors as they occur naturally and spontaneously in the course of communicative interaction. Using a within-group research design and a new testing methodology (video-based stimulated correction posttest), this laboratory study examined whether extensive and spontaneous recasts provided during smallgroup work were beneficial to adult L2 learners. Participants were 26 ESL learners, who were divided into seven small groups (3-5 students per group), and each group participated in an oral activity with a teacher. During the activity, the students received incidental and extensive recasts to half of their errors; the other half of their errors received no feedback. Students’ ability to detect and correct their errors in the three types of episodes was assessed using two types of tests: a stimulated correction test (a video-based computer test) and a written test. Students’ reaction time on the error detection portion of the stimulated correction task was also measured. The results showed that students were able to detect more errors in error+recast (error followed by the provision of a recast) episodes than in error-recast (error and no recast provided) episodes (though this difference did not reach statistical significance). They were also able to successfully and partially successfully correct more errors in error+recast episodes than in error-recast episodes, and this difference was statistically significant on the written test. The reaction time results also point towards a benefit from recasts, as students were able to complete the task (slightly) more quickly for error+recast episodes than for error-recast episodes.

12

The Influence of Temperature on Errors of Wim Systems Employing Piezoelectric Sensors Keywords: Piezoelectric Sensors, Temperature Influence, Temperature Error Of Wim Systems, Error Correction

88%

Gajda J. , Burnos P. , Sroka R. , Zeglen T.

|

13

Error Correction for Discrete Tomography

88%

Ceko M. , Hajdu L. , Tijdeman R.

Fundamenta Informaticae

|

2022

|

tom Vol. 189, nr 2

91--112

EN

Discrete tomography focuses on the reconstruction of functions from their line sums in a finite number d of directions. In this paper we consider functions f : A → R where A is a finite subset of ℤ2 and R an integral domain. Several reconstruction methods have been introduced in the literature. Recently Ceko, Pagani and Tijdeman developed a fast method to reconstruct a function with the same line sums as f. Up to here we assumed that the line sums are exact. Some authors have developed methods to recover the function f under suitable conditions by using the redundancy of data. In this paper we investigate the case where a small number of line sums are incorrect as may happen when discrete tomography is applied for data storage or transmission. We show how less than d/2 errors can be corrected and that this bound is the best possible. Moreover, we prove that if it is known that the line sums in k given directions are correct, then the line sums in every other direction can be corrected provided that the number of wrong line sums in that direction is less than k/2. [

14

Analysis of some dual properties in discrete dynamic systems

88%

Zhirabok A.

International Journal of Applied Mathematics and Computer Science

|

2006

|

tom 16

|

nr 3

297-308

EN

The problem of duality in nonlinear and linear systems is considered. In addition to the known duality between controllability and observability, new dual notions and their properties are investigated. A way to refine these properties through an isomorphic transformation of the original systems is suggested.

15

Technika kwantowa – szansa czy zagrożenie dla cyberbezpieczeństwa?

75%

Niemiec M.

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

|

2022

|

tom nr 4

99--104

PL

Obecny stan rozwoju techniki kwantowej umożliwia przesyłanie informacji kwantowej na odległość. Systemy telekomunikacyjne korzystające z tego typu rozwiązań mogą zapewnić poufność na niespotykanym dotychczas poziomie. Jednak praktyczne zastosowanie mechaniki kwantowej ma również drugi aspekt – jest nim ryzyko złamania obecnie stosowanych algorytmów szyfrowania danych. W artykule podsumowano obecny stan techniki kwantowej, skupiając się na tych technologiach, które mają bezpośredni wpływ na cyberbezpieczeństwo.

EN

The current state of quantum technology already enables the transfer of quantum information over a distance. Telecommunications systems using this type of solutions can ensure confidentiality at an unprecedented level. However, the practical application of quantum mechanics also has a flip side of the coin – the risk of breaking currently using data encryption algorithms. This paper summarizes the current state of quantum technology by considering those solutions that have a direct impact on cybersecurity.

16

Error correction in complex-shape objects processing with numerical control milling machines.

75%

Werner A. , Poniatowska M.

Advances in Manufacturing Science and Technology

|

2005

|

tom Vol. 29, nr 3

47-55

EN

The article describes an intermediary method of off-line error correction in the process of free surface patch processing with numerical control milling machines. The authors present and discuss the results of examining the effectiveness of the suggested method. The research was carried out with the use of a CNC FYS 16N milling machine, the CAD/CAM Mastercam system as well as a Renishaw JPC 11 contact measuring probe.

PL

W pracy przedstawiono pośrednią metodę korekcji błędów off-line obróbki płata powierzchni swobodnej na frezarce sterowanej numerycznie. Przeprowadzono badania i omówiono wyniki badań skuteczności proponowanej metody. Badania wykonano z użyciem frezarki CNC FYS 16N, systemu CAD/CAM Mastercam oraz sondy pomiarowej JPC 11 Renishaw.

17

Finding deformation of the stright rail track by GNSS measurements

75%

Koc W. , Chrostowski P. , Specht C.

Annual of Navigation

|

2012

|

tom No. 19, part 1

91--104

EN

In 2009, at the Gdansk University of Technology and Polish Naval Academy there has been carried out, for the first time, continuous satellite surveying of railway track by the use of the relative phase method based on the Polish Active Geodetic Network ASG-EUPOS and RTK (GPRS) real time service - NAVGEO. The analysis indicated strong connection between location of GNSS receiver and accuracy of position determination, the horizon obstruction deteriorated accuracy and impacts terrain obstructions, the precise GPS planning process on the position solution. It can be stated that implemented measuring technique opens a whole new perspective on applied research. As proved, it enables very precise determination of basic data definition for railway line modernization design. On-going research works focuses on the GNSS multi-receivers platform evaluation for projecting and stocktaking. Analyses also focused on the values of deviations of transverse position XTE (Cross Track Error). In order to eliminate the influence of random measurement errors and to obtain the coordinates representing the actual shape of the track, the XTE variable was performed by different statistical and regression methods (least square method - LSM, weighted least squares - WLS, Linear Chebyshev low-pass filtering and fast Fourier transform). The paper presents the result of trial analyses realized on the newly constructed (rectilinear) and old-used up railway lines. The authors were searching the methods for filtering random measurement GNSS errors different from instantaneous shape deformations of the straight rail track.

18

Odometry Error Correction for a 4-Wheel Omnidirectional Mobile Platform

75%

Blume H. , Heimann B. , Abelbeck F.

Machine Dynamics Problems

|

2006

|

tom Vol. 30, No. 1

5-20

EN

This paper deals with a dead reckoning error correction algorithm for a 4-wheel omnidirectional mobile platform. The platform is powered by 4 identical driven and actively steered wheels, which sums up to 8 actuation DOFs. The platform itself is described as unicycle kinematic by 3 DOFs in the horizontal plane containing speed in x- and y direction, and angular velocity around the vertical axis. For estimating the robot's speed the redundancy is solved by an extended Kalman filter, based on a kinematic model of the robot. Dead reckoning based on the estimated robot speed is subject to different systematic and random errors. Over time small errors sum up to large discrepancies between estimated and real robot position, which - especially in office environments with narrow passages in halls and doors - is a big limitation for position estimation based on dead reckoning. Still, dead reckoning offers high resolution position estimation in the close-up range and by data fusion with a landmark-based low resolution position estimation system qualifies for high accuracy path control. In this paper a dead reckoning error correction algorithm is presented, which splits the speed error into one part originating from straight line movement and a second part originating from rotation around the vertical axis. The parameters of the error correction algorithm are estimated by a recursive least squares algorithm. During operation the robot continuously verifies the set of parameters, to account for a drift of parameters due to wear and varying payload of the robot. A significant improvement against simple dead reckoning can be shown.

19

Error correction in complex-shape objects processing with numerical control milling machines

75%

Werner A. , Poniatowska M.

Archiwum Technologii Maszyn i Automatyzacji

|

2005

|

tom Vol. 25, nr 2

87-95

EN

The article describes an intermediary method of off-line error correction in the process of free surface patch processing with numerical control milling machines. The authors present and discuss the results of examining the effectiveness of the suggested method, The research was carried out with the use of a CNC FYS 16N milling machine, the CAD/CAM Mastercam system as well as a Renishaw JPC 11 contact measuring probe.

PL

W artykule przedstawiono pośrednią metodę korekcji błędów off-line obróbki płata powierzchni swobodnej na frezarce sterowanej numerycznie. Przedstawiono i omówiono wyniki badań skuteczności zaproponowanej metody. Badania prowadzono na frezarce CNC FYS 16N z wykorzystaniem systemu CAD/CAM Mastercam oraz sondy pomiarowej JPC 11 Renishaw.

20

The Influence of Direct and Indirect Feedback on Accuracy in the Production of Selected Grammar Structures in Written Compositions

75%

Serafin M.

Anglica Wratislaviensia

|

2014

|

nr 52

147 - 162

EN

Error correction is a burning issue in every classroom, since students tend to create numerous faulty structures. Those erroneous utterances should be corrected in such a way that would be supportive and useful for the pupil. Identifying the most effective feedback type is a considerable challenge for every researcher and English teacher. For many years, there has been an ongoing debate about correcting students’ grammatical errors. Nevertheless, this article can contribute to the development of research in its specific field of study mainly, because it deals with the influence of direct and indirect feedback on accuracy in the production of selected grammar structures in written texts. Most of the studies in this topic concern oral feedback; however, this paper gives some insight into written correction and its significant impact on grammar accuracy in written compositions. With the purpose of fully understanding this issue, the article includes not only the comparison of different forms of grammar instruction but also various types of feedback. The aim of this paper is to investigate whether direct or indirect feedback is more efficient in second language written compositions. In order to solve this problem, an experiment and an interview with the students had been conducted in Zespół Szkół Ekonomiczno-Turystycznych in Jelenia Góra. The results of this study may have some crucial implications for English teachers and methodologists.