A Computational Model Of Attention In CALL Reading For Young Second Language Learners

China is a country with a relatively poor second language learning environment.On the one hand,the regional difference of education resources,lack of good environment can lead to second language acquisition second language students have few opportunities to learn the language characteristics,which makes the students unable to set up an independent system of second language development.On the other hand,students’ personal differences are also one of the key factors affecting second language acquisition,so it is obviously inappropriate to adopt unified teaching and learning methods.So using the language learning of computer aided technology is one of the important channels of second language acquisition.In addition,one of the main methods of second language learning is reading,the discretion of the second language reading learning efficiency by reading mode,reading mode,task difficulty.The model of concentration integrates these factors,establishes a dynamic fitting relationship among environmental factors,cognitive factors and learning effects,and at the same time makes a certain prediction of students’ recent academic performance.To help teachers predict or judge in advance whether the intervention method can have an impact on the learning effect of learners.Therefore,this paper used the method of empirical research to divide the learners into three reading groups(RWA,RWL,RO).Based on CALL(Computer Assisted Language Learning),three commonly used resource presentation modes(ReadingWhile-Animation,Reading-While-Listening,Reading only)were recreated,and two reading modes(forward reading and problem-driven reading)were used to train the three reading groups.Reading training process,the use of eye tracking technology to collect three reading group cognition in the process of reading data,and then through the description of statistical methods in relationship,use white box technology calculation model is established to extract the feature parameters,and uses the particle swarm optimization algorithm for computing the optimal parameters in the model,so as to get a predictable calculation model with parameter.The research results are as follows :(1)From the perspective of the reading acquisition effect of young second language learners,first of all,the length of short passages plays a key role in the reading acquisition effect of low learners.With the increase of the length of short sentences,the reading acquisition efficiency of young second language learners will gradually decrease.Moreover,in the forward reading mode,the short-term memory space of young second language learners reaches the upper limit when the essay is 4 sentences long,while in the problem-driven reading mode,the short-term memory space of young second language learners reaches the upper limit when the essay is 3 sentences long.Secondly,different reading patterns have different effects on reading acquisition.In the forward reading mode,the acquisition effect of Reading-While-Listening(RWL)for young second language learners is better than that of Reading-While-Animation(RWA)and Reading only(RO),and the order between them is: Reading-While-Listening(RWL)> ReadingWhile-Animation(RWA)> Reading only(RO).However,under the problem driven reading mode,young L2 learners prefer Reading only(RO).This point drive reading mode,the young before reading the second language learners remember immediately after the test subject,has already occupied their short-term memory space,so when the learners need to put cognitive resources into extra process such as pronunciation,intonation,animation,they will spend more processing time,thus increasing their cognitive load.(2)From the perspective of the distribution of visual attention of young second language learners,the mode of reading resources and the length of reading passages are the key factors affecting the distribution of visual attention of young second language learners.First of all,young second language learners allocate more attention to Reading only(RO)and Reading-While-Animation(RWA)regardless of the forward reading mode or the length of the passage(5 sentences,4 sentences,3sentences).Meanwhile,the shorter the passage is,the more visual attention is allocated.However,in the problem-driven reading mode,young L2 learners allocated more attention to Reading only(RO),which indicated that cognitive load had a role in promoting better concentration to some extent.(3)young second language learners word length and the relation of word frequency,whether it is a positive reading problem driven reading,or young gaze of second language learners to word length are satisfied gaze distribution,that young learners of second language learners do not have mature reading as visual focus will be on the key words of this kind of reading skills.