• Title/Summary/Keyword: scoring

Search Result 1,613, Processing Time 0.034 seconds

Development of automated scoring system for English writing (영작문 자동 채점 시스템 개발 연구)

  • Jin, Kyung-Ae
    • English Language & Literature Teaching
    • /
    • v.13 no.1
    • /
    • pp.235-259
    • /
    • 2007
  • The purpose of the present study is to develop a prototype automated scoring system for English writing. The system was developed for scoring writings of Korean middle school students. In order to develop the automated scoring system, following procedures have been applied. First, review and analysis of established automated essay scoring systems in other countries have been accomplished. By doing so, we could get the guidance for development of a new sentence-level automated scoring system for Korean EFL students. Second, knowledge base such as lexicon, grammar and WordNet for natural language processing and error corpus of English writing of Korean middle school students were established. Error corpus was established through the paper and pencil test with 589 third year middle school students. This study provided suggestions for the successful introduction of an automated scoring system in Korea. The automated scoring system developed in this study should be continuously upgraded to improve the accuracy of the scoring system. Also, it is suggested to develop an automated scoring system being able to carry out evaluation of English essay, not only sentence-level evaluation. The system needs to be upgraded for the improved precision, but, it was a successful introduction of an sentence-level automated scoring system for English writing in Korea.

  • PDF

Recent Development of Scoring Functions on Small Molecular Docking (소분자 도킹에서의 평가함수의 개발 동향)

  • Chung, Hwan Won;Cho, Seung Joo
    • Journal of Integrative Natural Science
    • /
    • v.3 no.1
    • /
    • pp.49-53
    • /
    • 2010
  • Molecular docking is a critical event which mostly forms Van der waals complex in molecular recognition. Since the majority of developed drugs are small molecules, docking them into proteins has been a prime concern in drug discovery community. Since the binding pose space is too vast to cover completely, many search algorithms such as genetic algorithm, Monte Carlo, simulated annealing, distance geometry have been developed. Proper evaluation of the quality of binding is an essential problem. Scoring functions derived from force fields handle the ligand binding prediction with the use of potential energies and sometimes in combination with solvation and entropy contributions. Knowledge-based scoring functions are based on atom pair potentials derived from structural databases. Forces and potentials are collected from known protein-ligand complexes to get a score for their binding affinities (e.g. PME). Empirical scoring functions are derived from training sets of protein-ligand complexes with determined affinity data. Because non of any single scoring function performs generally better than others, some other approaches have been tried. Although numerous scoring functions have been developed to locate the correct binding poses, it still remains a major hurdle to derive an accurate scoring function for general targets. Recently, consensus scoring functions and target specific scoring functions have been studied to overcome the current limitations.

The Scoring Framework Development for Teacher's Knowledge of Fractions (분수에 대한 교사 지식의 평가 기준 개발)

  • Lee Jong Euk
    • The Mathematical Education
    • /
    • v.44 no.2 s.109
    • /
    • pp.215-228
    • /
    • 2005
  • The purpose of this study is to development the scoring framework for teacher knowledge of fractions. This framework is qualified in the content-validity by professional educators' evaluation and in the reliability by correlation coefficient. 2 math educators judged that this framework is composed of appropriate scoring category, scoring criterion, and scoring level. After 2 teachers scored the tasks, correlation coefficient was calculated between evaluators. The coefficient is evaluated high in that it is more than 0.80.

  • PDF

A study on the Severity Scoring Systems of Atopic Dermatitis ; Comparision, Analysis and Establishment (아토피 피부염의 평가방법에 대한 연구 : 비교 분석 및 설립)

  • 윤화정;윤정원;윤소원;고우신
    • The Journal of Korean Medicine
    • /
    • v.23 no.4
    • /
    • pp.15-26
    • /
    • 2002
  • There is much confusion in the field of atopic dermatitis (AD) regarding how to best measuredisease severity objectively. Therefore, we aimed to establish a new adequate scoring system for AD, that should be based on comparisonand analysis of various scoring systems. We report as follows. Methods: We searched for data relating to severity scoring systems for atopic dermatitis in Entrez PubMed From 1990 to 2001 Results and Conclusions: 1. Properties of severity scoring systems were validity, reliability, sensitivity of change and ease of use. 2. The essential items of severity scoring systems were extent. intensity and subjective symptoms. 3. The surface extent of the lesion was evaluated by the percentage of involvement of each of 10 areas. 4. The criteria of severity were divided into intensity and subjective symptoms. Intensity items are erythema, papulation, lichenification, oozing, dryness, excoriations, and pigmentation. The subjective symptom is pruritus, evaluated according to sleep loss. 5. The significant items of severity scoring system were symptomsrather than areas. As it were, we assumed extent accounted for around 30% of each total score, with intensity and subjective symptoms representing 70%.

  • PDF

Poultry Coccidiosis Lesions and Lesion Scoring (가금콕시듐증 병변과 Lesion Scoring)

  • Conway, Donal P.
    • Korean Journal of Poultry Science
    • /
    • v.6 no.2
    • /
    • pp.103-108
    • /
    • 1979
  • 1 닭의 콕시듐증 병변을 인식하고 확인하는데는 장의 각기 다른 부위에서 발견되는 콕시듐 원충에 달려있다. 병변에 대한 지식과 원충 확인이 lesion scoring에서 요구되고 있지만. 원충을 확인하는 것이 lesion scoring의 기본목적은 아니다. (중략)

  • PDF

A Study on design of The Internet-based scoring system for constructed responses (서답형 문항의 인터넷 기반 채점시스템 설계 연구)

  • Cho, Ji-Min;Kim, Kyung-Hoon
    • The Journal of Korean Association of Computer Education
    • /
    • v.10 no.2
    • /
    • pp.89-100
    • /
    • 2007
  • Scoring the constructed responses in large-scale assessments needs great efforts and time to reduce the various types of error in Paper-based training and scoring. For the purpose of eliminating the complexities and problems in Paper and pencil based training and scoring, many of countries including U.S.A and England already have applied online scoring system. There, however, has been few studies to develop the scoring system for the constructed responses items in Korea. The purpose of this study is to develop the basic design of the Internet-based scoring system for the constructed responses. This study suggested the algorithms for assigning scorers to constructed responses, employing methods for monitoring reliability, etc. This system can ensure reliable, quick scoring such as monitor scorer consistency through ongoing reliability checks and assess the quality of scorer decision making through frequent various checking procedures.

  • PDF

Automated Scoring System for Korean Short-Answer Questions Using Predictability and Unanimity (기계학습 분류기의 예측확률과 만장일치를 이용한 한국어 서답형 문항 자동채점 시스템)

  • Cheon, Min-Ah;Kim, Chang-Hyun;Kim, Jae-Hoon;Noh, Eun-Hee;Sung, Kyung-Hee;Song, Mi-Young
    • KIPS Transactions on Software and Data Engineering
    • /
    • v.5 no.11
    • /
    • pp.527-534
    • /
    • 2016
  • The emergent information society requires the talent for creative thinking based on problem-solving skills and comprehensive thinking rather than simple memorization. Therefore, the Korean curriculum has also changed into the direction of the creative thinking through increasing short-answer questions that can determine the overall thinking of the students. However, their scoring results are a little bit inconsistency because scoring short-answer questions depends on the subjective scoring of human raters. In order to alleviate this point, an automated scoring system using a machine learning has been used as a scoring tool in overseas. Linguistically, Korean and English is totally different in the structure of the sentences. Thus, the automated scoring system used in English cannot be applied to Korean. In this paper, we introduce an automated scoring system for Korean short-answer questions using predictability and unanimity. We also verify the practicality of the automatic scoring system through the correlation coefficient between the results of the automated scoring system and those of human raters. In the experiment of this paper, the proposed system is evaluated for constructed-response items of Korean language, social studies, and science in the National Assessment of Educational Achievement. The analysis was used Pearson correlation coefficients and Kappa coefficient. Results of the experiment had showed a strong positive correlation with all the correlation coefficients at 0.7 or higher. Thus, the scoring results of the proposed scoring system are similar to those of human raters. Therefore, the automated scoring system should be found to be useful as a scoring tool.

Analysis of weights depending on scoring domains of the mathematical creativity test (수학적 창의성 검사의 채점 영역별 가중치 분석)

  • Kim, Sungyeun
    • The Mathematical Education
    • /
    • v.55 no.2
    • /
    • pp.147-169
    • /
    • 2016
  • This study analyzes the mathematical creativity test as an illustrative example with scoring domains of fluency, flexibility and originality in order to make suggestions for obtaining maximum reliability based on a composite score depending on combinations of each scoring domain weights. This is done by performing a multivariate generalizability analysis on the test scores, which were allowed to access publicly, of 30 mathematically gifted elementary school students, and therefore error variances, generalizability coefficients, and effective weights have been calculated. The main results were as follows. First, the optimal weights should adjust to .5, .4, and .1 based on the maximum generalizability coefficient even though the original weights in the mathematical creativity test were equal for each scoring domain with fluency, flexibility and originality. Second, the mathematical creativity test using the three scoring domains of fluency, flexibility, and originality showed higher reliability than using one scoring domain such as fluency. These results are limited to the mathematical creativity test used in this study. However, the methodology applied in this study can help determine the optimal weights depending on each scoring domain when the tests constructed in various researchers or educational fields are composed of multiple scoring domains.

Quantitative Scoring System on the Importance of Software Vulnerabilities (보안취약점 중요도 정량 평가 체계 연구)

  • Ahn, Joonseon;Chang, Byeong-Mo;Lee, Eunyoung
    • Journal of the Korea Institute of Information Security & Cryptology
    • /
    • v.25 no.4
    • /
    • pp.921-932
    • /
    • 2015
  • We proposed a new scoring system on software vulnerabilities, which calculates quantitatively the severity of software vulnerabilities. The proposed scoring system consists of metrics for vulnerability severity and scoring equations; the metrics are designed to measure the severity of a software vulnerability considering the prevalence of the vulnerability, the risk level of the vulnerability, the domestic market share of the software and the frequency of the software. We applied the proposed scoring system to domestically reported software vulnerabilities, and discussed the effectiveness of the scoring system, comparing it with CVSS and CWSS. We also suggested the prospective utilization areas of the proposed scoring system.

A Study on an Alternative to the Standardized Scoring System in CSAT (대학수학능력시험에서 표준점수제의 개선방안에 대한 연구)

  • Hwang, Hyung-Tae
    • The Korean Journal of Applied Statistics
    • /
    • v.18 no.3
    • /
    • pp.521-532
    • /
    • 2005
  • In the current College Scholastic Aptitude Test (CSAT), the standardized scoring system is being adopted to adjust te differences of degrees of difficulty between the optional subjects. But it becomes clear that the system has several weak points, some of which are considered to be very serious. In this paper we propose an alternative method, so-called the additive scoring system. It determines the additional points per each subjects, according to the subject mean scores. The proposed method has been simulated using the data of 2005' CSAT, and it turns out that the additive scoring system reduces or remove the troubles caused by the standardized scoring system.