TF一般与IDF连用。 IDF 英文名称:Inverse document frequency 指的是逆文档频率。 针对的是多篇文档,针对词i,用文档集合中的文档总数/词i出现的文档总数。 思想:如果一个词在越多的文档中出现,这个词就越不具备区分不同文档的能力。比如“的”,这个词频次很高,但是这个词能够区分不同文档吗?当然不能。 DF 英文...
Automated fibre analysis showed relative standard deviations ( TDF : 13.8%; IDF : 17.2%; and SDF : 24.6% at 95% CI reported by the AOAC in the method 991.43) that are consistent to the manual methods. Thus, this current work serves as a valuable assessment of a novel filtration system ...
athe TDF, IDF and SDF content in peels from different varieties of mango fruits at different stages of maturity varied from 45–78%, 29–50% and 15–28%, respectively TDF、IDF和SDF內容在果皮從芒果果子不同的品種在從45-78%, 29-50%和15-28%變化的成熟不同的階段,分別[translate]...
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这是早上一开门,美女拿了100多克金子来卖,美女说这点金子,赚了两万多块钱,需要卖黄金的赶紧抓住机会哟。 这是早上一开门,美女拿了100多克金子来卖,美女说这点金子,赚了两万多块钱,需要卖黄金的赶紧抓住机会哟。 图文17 高价回收黄铂金。刚收的100多克,现在金价不稳,该出手就出手。 高价回收黄铂金。刚收...
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The objectives of this article were to determine the content of total dietary fibre (TDF) as well as of its fractions – soluble dietary fibre (SDF) and insoluble dietary fibre (IDF) of different cereals grown by conventional and organic farming in Macedonia, as well as to find out the ...
The dynamic performance of\ndifferent controllers such as PIDF, TIDF, PDF-PIDF, and TDF-TIDF controllers\nare evaluated with their design variables tuned by employing genetic algorithm,\nparticle swarm optimization, gravitational search algorithm, quasi\nharmony search algorithm, grasshopper algorithm ...