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基于自然生長(zhǎng)模型與重構(gòu)模型的社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)建模與實(shí)驗(yàn)分析

發(fā)布時(shí)間:2018-07-26 14:15
【摘要】:社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)建模是社會(huì)網(wǎng)絡(luò)其它領(lǐng)域研究的基礎(chǔ),旨在構(gòu)建合理的社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)模型。但由于隱私保護(hù)等諸多原因,幾乎不可能獲取構(gòu)建社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)模型所需的全部數(shù)據(jù),因此研究利用不完整數(shù)據(jù)構(gòu)建社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)模型十分必要。現(xiàn)有的構(gòu)建社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)模型的方法雖然有許多,但都存在一定的問(wèn)題,比如早期的靜態(tài)模型并不具有社會(huì)網(wǎng)絡(luò)的全部拓?fù)涮匦?大部分的動(dòng)態(tài)模型中節(jié)點(diǎn)隨時(shí)間推進(jìn)無(wú)限增長(zhǎng)。本文首先從應(yīng)用場(chǎng)景分析出發(fā),提煉技術(shù)需求,然后分別從時(shí)間、空間以及時(shí)空融合三個(gè)不同角度,設(shè)計(jì)了三種社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)模型——基于歷史事件的自然生長(zhǎng)模型、基于局部網(wǎng)絡(luò)信息的重構(gòu)模型以及時(shí)空融合社會(huì)網(wǎng)絡(luò)模型。基于歷史事件的自然生長(zhǎng)模型是一種基于行為原則以及事件對(duì)網(wǎng)絡(luò)結(jié)構(gòu)影響機(jī)制的動(dòng)態(tài)模型;基于局部網(wǎng)絡(luò)信息的重構(gòu)模型建立在修正的共鄰相似性和屬性相似性兩種鏈路預(yù)測(cè)指標(biāo)之上;時(shí)空融合社會(huì)網(wǎng)絡(luò)模型的構(gòu)建則結(jié)合了社會(huì)網(wǎng)絡(luò)自然選擇等基礎(chǔ)理論;贜etlogo實(shí)驗(yàn)平臺(tái),本文使用不同的實(shí)驗(yàn)數(shù)據(jù)及方法,對(duì)上述三種網(wǎng)絡(luò)模型進(jìn)行了實(shí)驗(yàn)驗(yàn)證。實(shí)驗(yàn)證明,三種網(wǎng)絡(luò)模型分別在不同條件下具有較好的準(zhǔn)確性。因此,具體應(yīng)用場(chǎng)景下,可以根據(jù)可獲取數(shù)據(jù)的不同,選擇相應(yīng)的模型建立社會(huì)網(wǎng)絡(luò)結(jié)構(gòu)。此外,由于外在環(huán)境和節(jié)點(diǎn)自身狀態(tài)的不斷變化,社會(huì)網(wǎng)絡(luò)的結(jié)構(gòu)也隨之不斷變化,但社會(huì)網(wǎng)絡(luò)的這種變化總是使其結(jié)構(gòu)在整體上向著更加穩(wěn)定的方向發(fā)展。
[Abstract]:The modeling of social network structure is the basis of other fields of social network research, aiming at constructing a reasonable social network structure model. However, for many reasons, such as privacy protection, it is almost impossible to obtain all the data needed to construct the social network structure model, so it is very necessary to study the use of incomplete data to construct the social network structure model. Although there are many existing methods of constructing social network model, there are some problems. For example, the early static model does not have all the topological characteristics of social network. In most dynamic models, nodes grow infinitely with time. In this paper, first of all, from the perspective of application scenario analysis, we refine the technical requirements, and then from three different angles of time, space and space fusion, we design three kinds of social network structure models-natural growth model based on historical events. Reconstruction model based on local network information and spatiotemporal fusion social network model. The natural growth model based on historical events is a dynamic model based on behavior principle and the influence mechanism of event on network structure. The reconstruction model based on local network information is based on two kinds of link prediction indexes: the modified co-neighbor similarity and attribute similarity, while the space-time fusion social network model combines the basic theories of social network natural selection and so on. Based on the Netlogo experimental platform, this paper uses different experimental data and methods to verify the above three network models. Experiments show that the three network models have better accuracy under different conditions. Therefore, according to the difference of available data, the corresponding model can be selected to establish the social network structure in the specific application scenario. In addition, the structure of social network changes with the change of external environment and the state of node itself, but the change of social network always makes the structure of social network more stable as a whole.
【學(xué)位授予單位】:南京郵電大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類(lèi)號(hào)】:O157.5

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