semantic variable
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Author(s):  
Seth Lindstromberg ◽  
June Eyckmans

Although retrieval of lexical forms is a prerequisite for language production, research of L2 vocabulary learning has focused much more on meanings and form-meaning mappings than on development of detailed, accessible mental representations of forms. This is particularly true with respect to multi-word items (MWIs). We report an experimental study involving a variety of intra-lexical, usage-based, and interlingual co-determinants of L2 vocabulary learnability pertaining to MWIs. Each learner (N = 60) encountered a randomly allocated set of 26 two-word MWIs (Nsets = 4) semi-randomly drawn from a larger pool of MWIs. Learners were asked to remember either the 13 MWIs showing the form variable assonance (e.g., change shape) or the 13 nonassonant control MWIs (e.g., sound good). Posttests of form recall revealed a large, durable effect of the focusing task in combination with forewarning of testing. Except when MWI concreteness (a semantic variable) was high, assonance had a positive effect on retrievability in recall tests given after delays of 15 minutes and one week. There was a consistent effect of the semi-semantic variable Mutual Information. Even in the context of a strong focus on forms, form variables are not the only variables that matter.


2020 ◽  
Vol 8 (5) ◽  
pp. 5039-5045

Semantic Variable Length Markov Chain Length Model (SVLMC) is a web page recommendation system which combined the fields of semantic web and web usage mining by the Markov transition probability matrix with rich semantic information extracted from web pages. Though it has high prediction accuracy, it has problem of high state space complexity. The high space complexity reduce the execution speed and reduce the performance of the system, which was resolved by Semantic Variable Length confidence pruned Markov Chain Model (SVLCPMC) model that provides high user satisfied recommendation and Confidence Pruned Markov Model (CPMM). The time consumption of CPMM was reduced by Support Vector Machine (SVM). But still the recommendation accuracy is still below the user satisfaction. So in this paper, quickest change detection using Kullback-Leibler Divergence method is introduced to improve the accuracy of recommendation generation by developing a scalable quickest change detection schemes that can be implemented recursively in a more complicated scenario of Markov model and it is included in the training data of SVM. Then the performance of web page recommendation is improved by ranking the web pages using page ranking technique. Thus the performance of web page recommendation generation system has been improved. The experiments are conducted to prove the effectiveness of the proposed work in terms of prediction accuracy, precision, recall, F1-measure, coverage and R measure.


2019 ◽  
Vol 40 (4) ◽  
pp. 965-985
Author(s):  
Patrick Bonin ◽  
Margaux Gelin ◽  
Vivien Dioux ◽  
Alain Méot

AbstractAnimacy is one of the basic semantic features of word meaning and influences perceptual and episodic memory processes. However, evidence that this variable also influences lexicosemantic processing is mixed. As animacy is a semantic variable thought to have evolutionary roots, we first examined its influence in a semantic categorization task that did not make the animacy dimension salient, namely, concrete-abstract categorization. Animates were categorized faster (and more accurately) than inanimates. We then assessed the influence of animacy in two lexical decision experiments. In Experiment 2, we mostly used legal nonwords, whereas in Experiment 3, we varied the context of the nonwords across participants in such a way that the discriminability between words and nonwords was either high or low. Animates yielded faster decision times than inanimates when legal nonwords were used (Experiment 2) and when the discriminability between words and nonwords was low (i.e., “difficult nonwords” in Experiment 3), but the difference between the two types of words was not reliable when discriminability was high (e.g., illegal strings of letters, i.e., “easy nonwords” in Experiment 3). The findings suggest that animacy is a core meaning-related dimension that influences a large number of processes involved in perception, episodic memory, and semantic memory.


2019 ◽  
Vol 72 (9) ◽  
pp. 2302-2312 ◽  
Author(s):  
Bojana Ćoso ◽  
Marc Guasch ◽  
Pilar Ferré ◽  
José Antonio Hinojosa

This study presents subjective ratings for 3,022 Croatian words, which were evaluated on two affective dimensions (valence and arousal) and one lexico-semantic variable (concreteness). A sample of 933 Croatian native speakers rated the words online. Ratings showed high reliabilities for all three variables, as well as significant correlations with ratings from databases available in Spanish and English. A quadratic relation between valence and arousal was observed, with a tendency for arousal to increase for negative and positive words, and neutral words having the lowest arousal ratings. In addition, significant correlations were found between affective dimensions and word concreteness, suggesting that abstract words have a tendency to be more arousing and emotional than concrete words. The present database will allow experimental research in Croatian, a language with a considerable lack of psycholinguistic norms, by providing researchers with a useful tool in the investigation of the relationship between language and emotion for the South-Slavic group of languages.


2013 ◽  
Vol 35 (4) ◽  
pp. 589-618 ◽  
Author(s):  
Jason Rothman ◽  
Michael Iverson

This study tests native Brazilian Portuguese (BP) speakers of second language (L2) Spanish in the domain of phonologically null object pronouns. This is a worthwhile first language (L1)-L2 pairing given that these languages are historically and typologically related and both seemingly allow for object drop. Nevertheless, the underlying syntax of phonologically null object pronouns is distinct in each language, resulting in differences in their respective syntactic reflexes. We pursue whether or not it is more difficult to acquire new syntactic structure for a L2 property that, on the surface, is shared by the L1. In other words, we explore whether advanced BP learners of L2 Spanish will be successful in the acquisition of Spanish object drop to the same degree as English learners and European Portuguese learners who were previously shown by Bruhn de Garavito and Guijarro-Fuentes (2001) to be quite successful. By means of a scalar grammaticality judgment task with context, we examine competence of the Spanish restrictions on the distribution of dropped objects that differ from BP in various syntactic positions (e.g., simple clauses vs. strong islands) while alternating the Spanish-specific semantic variable of definiteness as determined by the context. The data show that the semantic alternations are acquired as well as the new syntax; however, such acquisition does not guarantee preemption of the L1 syntactic option, which may result in target-deviant variability. We discuss the data in light of what they bring to bear on questions pertinent to formal SLA theory.


2003 ◽  
Vol 56 (2) ◽  
pp. 263-286 ◽  
Author(s):  
Naoki Shibahara ◽  
Marco Zorzi ◽  
Martin P. Hill ◽  
Taeko Wydell ◽  
Brian Butterworth

Three experiments investigated whether reading aloud is affected by a semantic variable, imageability. The first two experiments used English, and the third experiment used Japanese Kanji as a way of testing the generality of the findings across orthographies. The results replicated the earlier findings that readers were slower and more error prone in reading low-frequency exception words when they were low in imageability than when they were high in imageability (Strain, Patterson, & Seidenberg, 1995). This result held for both English and Kanji even when age of acquisition was taken into account as a possible confounding variable, and the imageability effect was stronger in Kanji compared to English.


2000 ◽  
Vol 12 (4) ◽  
pp. 556-568 ◽  
Author(s):  
Thomas C. Gunter ◽  
Angela D. Friederici ◽  
Herbert Schriefers

This experiment explored the effect of semantic expectancy on the processing of grammatical gender, and vice versa, in German using event-related-potentials (ERPs). Subjects were presented with correct sentences and sentences containing an article-noun gender agreement violation. The cloze probability of the nouns was either high or low. ERPs were measured on the nouns. The low-cloze nouns evoked a larger N400 than the high-cloze nouns. Gender violations elicited a left-anterior negativity (LAN, 300-600 msec) for all nouns. An additional P600 component was found only in high-cloze nouns. The N400 was independent of the gender mismatch variable; the LAN was independent of the semantic variable, whereas an interaction of the two variables was found in the P600. This finding indicates that syntactic and semantic processes are autonomous during an early processing stage, whereas these information types interact during a later processing phase.


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