16 research outputs found

    Simple: Sistim Penilai Esei Otomatis Untuk Menilai Ujian Dalam Bahasa Indonesia

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    SIMPLE: System Automatic Essay Assessment for Indonesian Language Subject Examination. Evaluation ofstudy of a student is a very important aspect of an educational process. Evaluation is aimed at measuring the level ofstudent understanding of the given lecture materials. Measuring student understanding of the course material, usingessay-type exam, is generally used as the evaluation tool. In this essay-type exam, the student has to answer questionsusing sentences, whereby choices of possible answers are not indicated. The student has to answer the questions withhis/her sentences. The answers may vary, since it reflects the student's best thoughts of the materials. One of theweaknesses of essay-type exam is the difficulty to grade the answers and it tends to be time consuming. Currently,automatic grading systems that may speed up the grading process, are being developed in many research institutions.The method used to grade, varies form one system to another, and one of the popular system is the Latent SemanticAnalysis (LSA). LSA is a method of grading essay by extracting words and representing the sentence in the form ofmathematical or statistical formulation, from a text with a relatively large number of words. The grade of the essay isdetermined, by matching the important words to a group of words prepared by the human rater. This paper describes aneffort to developed LSA, enhanced with word weighting, word order and the word synonym to improve the accuracy ofgrading. This system is called SIMPLE. SIMPLE is used to grade answers using bahasa Indonesia. The exam is carriedout on-line through the Web. From the experiments conducted, for small classes, the conformity of grade compared tothe grade of human rater lies between 69.80 % - 94.64 %, and for medium size classes the conformity lies between77.18 % - 98.42 % with the human rater. These results are roughly proportional with the result of LSA system, whichgrade essay given in English

    A variant of the primitive element theorem for separable extensions of a commutative ring

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    In this article we show that any strongly separable extension of a commutative ring R can be embedded into another one having primitive element whenever every boolean localization of R modulo its Jacobson radical is von Neumann regular and locally uniform

    Finite-dimensional Nichols algebras over dual Radford algebras

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    For n, m ∈ N, let Hn,m be the dual of the Radford algebra of dimension n 2m. We present new finite-dimensional Nichols algebras arising from the study of simple Yetter-Drinfeld modules over Hn,m. Along the way, we describe the simple objects in Hn,m Hn,m YD and their projective envelopes. Then, we determine those simple modules that give rise to finite-dimensional Nichols algebras for the case n = 2. There are 18 possible cases. We present by generators and relations the corresponding Nichols algebras on five of these eighteen cases. As an application, we characterize finite-dimensional Nichols algebras over indecomposable modules for n = 2 = m and n = 2, m = 3, which recovers some results of the second and third author in the former case, and of Xiong in the latter.Fil: Bagio, D.. Universidade Federal de Santa Maria; BrasilFil: García, Gastón Andrés. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Matemáticas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Jury Giraldi, Joao Matheus. Universidade Federal de Santa Maria; BrasilFil: Márquez, O.. Universidade Federal de Santa Maria; Brasi

    Twisted partial actions of Hopf algebras

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    In this work, the notion of a twisted partial Hopf action is introduced as a unified approach for twisted partial group actions, partial Hopf actions and twisted actions of Hopf algebras. The conditions on partial cocycles are established in order to construct partial crossed products, which are also related to partially cleft extensions of algebras. Examples are elaborated using algebraic groups

    On self-dual normal bases

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    We deal with the existence of self-dual normal basis for Galois extensions of a commutative ring. We consider commutative rings which are local, connected semi-local (under some suitable restrictions) or zero-dimensional. We show that for such kind of rings every Galois extension of odd degree has a self-dual normal basis.17111

    Problems of Supevision of Buying Circulations Medicine Online

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    Drugs are pharmaceutical preparations that are much needed during the pandemic, such as today. There are so many pharmaceutical preparations circulating through internet-based media, which are not in accordance with applicable regulations so that they have big potential to cause bad impacts. There are various obstacles faced by the government in carrying out supervision of pharmaceutical preparations through the Food and Drug Supervisory Agency, especially related to online drug buying and selling activities. Some of these obstacles include good access to Indonesia's territory, the low level of public knowledge about drugs, low cross-sectoral supervision, and weak legislation. These weaknesses then become a gap for business actors to conduct online buying and selling transactions without complying with applicable regulations. Thus, further supervision is needed by the Food and Drug Supervisory Agency as a form of responsibility and the realization of legal certainty in order to improve justice and public safety as consumers

    Inner actions of weak Hopf algebras

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