60,779 research outputs found

    Students' drafting strategies and text quality

    Get PDF
    The study reports an analysis of the drafts produced by two groups of students during an exam. Drafts were categorized as a function of some of their graphic features (e.g. their length), and of their different planning strategies used for their production (e.g. note draft, organized draft, composed draft). Grades obtained by the students on their essays related to the different categories of drafts. Results show that 2/3 of both groups of students made some kinds of draft. Drafts mostly consisted of note drafts or long composed drafts. Very few consisted of organized drafts. However, students that wrote these latter drafts obtained the best ratings. Drafting strategy was homogeneous for half of the students who used one category. The other half successively used two drafting modes. In that case they mostly associated writing with jotting down notes or with some marks of organization. Here, again, students who organized, even partially, their drafts obtained the highest grades. Very few corrections were brought to the long drafts and they concerned the surface (spelling or lexicon), not the content or the plan. This research shows that only a limited number of students used an efficient drafting (organized draft) even though such a strategy is generally associated with the highest ratings

    Narrative and descriptive text revising strategies and procedures

    Get PDF
    Forty-eight children and forty-eight adults of contrasting degrees of expertise made a series of corrections in order to improve a text (narrative or description) in which three within-statement errors and three between-statement errors had been inserted. Subjects used a simplified word processor (SCRIPREV) which recorded all movements of linguistic units. The purpose of this research was to study revising strategies by examining the correction-sequencing procedures implemented by these subjects. The procedures, which were coded in the form of time series, were compared to the time series of model revising procedures (i.e. effective ones) representing three strategies based on certain predefined functional principles (linguistic level, execution order). The adults used two of these strategies. The Simultaneous Strategy for the narrative, and the Local-then-Global Strategy for the description. The children used the Local-then-Global Strategy for the narrative, but did not use any identifiable procedure to revise the description, which they did not manage to totally improve in the expected manner

    On paths-based criteria for polynomial time complexity in proof-nets

    Get PDF
    Girard's Light linear logic (LLL) characterized polynomial time in the proof-as-program paradigm with a bound on cut elimination. This logic relied on a stratification principle and a "one-door" principle which were generalized later respectively in the systems L^4 and L^3a. Each system was brought with its own complex proof of Ptime soundness. In this paper we propose a broad sufficient criterion for Ptime soundness for linear logic subsystems, based on the study of paths inside the proof-nets, which factorizes proofs of soundness of existing systems and may be used for future systems. As an additional gain, our bound stands for any reduction strategy whereas most bounds in the literature only stand for a particular strategy.Comment: Long version of a conference pape

    Effect of screen presentation on text reading and revising. International Journal of Human-Computer Studies

    Get PDF
    Two studies using the methods of experimental psychology assessed the effects of two types of text presentation (page-by-page vs. scrolling) on participants' performance while reading and revising texts. Greater facilitative effects of the page-by-page presentation were observed in both tasks. The participants' reading task performance indicated that they built a better mental representation of the text as a whole and were better at locating relevant information and remembering the main ideas. Their revising task performance indicated a larger number of global corrections (which are the most difficult to make)

    Revising strategies for different text types

    Get PDF
    Forty-eight children and forty-eight adults of contrasting degrees of expertise made a series of corrections in order to improve a text (narrative or description) in which three within-statement errors and three between-statement errors had been inserted. Subjects used a simplified word processor (SCRIPREV) which recorded all movements of linguistic units. The purpose of this research was to study revising strategies by examining the correction-sequencing procedures implemented by these subjects. The procedures, which were coded in the form of time series, were compared to the time series of model revising procedures (i.e. effective ones) representing three strategies based on certain predefined functional principles (linguistic level, execution order). The adults used two of these strategies: the Simultaneous Strategy for the narrative, and the Local-then-Global Strategy for the description. The children used the Local-then-Global Strategy for the narrative, but did not use any identifiable procedure to revise the description, which they did not manage to totally improve in the expected manner

    A Class of MSR Codes for Clustered Distributed Storage

    Full text link
    Clustered distributed storage models real data centers where intra- and cross-cluster repair bandwidths are different. In this paper, exact-repair minimum-storage-regenerating (MSR) codes achieving capacity of clustered distributed storage are designed. Focus is given on two cases: Ï”=0\epsilon=0 and Ï”=1/(n−k)\epsilon=1/(n-k), where Ï”\epsilon is the ratio of the available cross- and intra-cluster repair bandwidths, nn is the total number of distributed nodes and kk is the number of contact nodes in data retrieval. The former represents the scenario where cross-cluster communication is not allowed, while the latter corresponds to the case of minimum cross-cluster bandwidth that is possible under the minimum storage overhead constraint. For the Ï”=0\epsilon=0 case, two types of locally repairable codes are proven to achieve the MSR point. As for Ï”=1/(n−k)\epsilon=1/(n-k), an explicit MSR coding scheme is suggested for the two-cluster situation under the specific condition of n=2kn = 2k.Comment: 9 pages, a part of this paper is submitted to IEEE ISIT201
    • 

    corecore