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senmuyan新蟲 (初入文壇)
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[求助]
請(qǐng)幫助我理解這段審稿意見 已有1人參與
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文章是關(guān)于基于浮動(dòng)車的路段行程時(shí)間估計(jì),小修,限我兩周之內(nèi)改完,很緊急,請(qǐng)各位蟲友相助,小弟感激不盡。。!審稿意見如下: The paper highlight a better performance of the new method over others, but this result is based on an a-priori data modelling of the data. A doubt remains about the true effectiveness of this approach for real time navigation support, where unexpected traffic conditions might occur. In fact the missing observations on CPV may lead the K-Nearest Neighbour Rule model to not classifying accurately unexpected conditions. The risk of an unreliable prediction on the vehicle's travel time remains proportional to the sampling interval (to the missing observations). The model should be accompanied by a value of reliability (statistical significance), for its use and for a proper benchmarking over competing models. Solutions based on Bayesian analysis modelling are, in principle, more appropriate to handle this kind of uncertainty since they are based on a-posteriori probability. With these premises the proposed method, without further justification in the paper, remains valid preferably to represent average traffic conditions for applications where this kind of model can be required. The paper is written with a good degree of precision in an acceptable technical English, but it is desirable to add a thorough discussion about the reliability of the model in relation to its use. 附上我自己的部分翻譯和主要疑問: 第一段:這篇文章強(qiáng)調(diào)了新方法與其它方法相比具有更好的性能,但這結(jié)果是基于一個(gè)對(duì)數(shù)據(jù)的先驗(yàn)數(shù)據(jù)建模(?這里不理解,我是用幾年前的GPS浮動(dòng)車數(shù)據(jù)驗(yàn)證的,先驗(yàn)指的是這個(gè)嗎?)。該方法對(duì)實(shí)時(shí)車輛導(dǎo)航支持的真實(shí)效果存在疑問,因?yàn)榭赡艹霈F(xiàn)意外的交通狀況。事實(shí)上,CPV(指當(dāng)前探測(cè)車)觀測(cè)數(shù)據(jù)的缺失(請(qǐng)問這就是前面提到的意外狀況嗎?)可能導(dǎo)致K近鄰模型對(duì)意外交通狀況不能準(zhǔn)確分類。對(duì)車輛行程時(shí)間預(yù)測(cè)不可靠的風(fēng)險(xiǎn)與采樣間隔成正比(to 缺失觀測(cè)值 最后一句話完全不理解) 第二段徹底不能理解,這些詞連在一起就不明白審稿人的意圖了,我文章的方法是K近鄰與神經(jīng)網(wǎng)絡(luò)結(jié)合,并沒有使用貝葉斯分析模型,專家為何在此提出貝葉斯模型呢?他是想讓我換方法,還是想讓我用貝葉斯分析模型去驗(yàn)證我提出來的模型,還是想讓我用我的方法去和貝葉斯模型做比較呢? (我對(duì)Bayesian analysis modelling也完全不了解,能不能稍微解釋一下,給我一個(gè)方向查閱資料) 第三段:需要添加一個(gè)關(guān)于模型在實(shí)際使用中可靠性的討論。 另外還有兩個(gè)問題: 1)這三段是三個(gè)問題,我需要分別解答,還是這三段其實(shí)是一個(gè)問題,讓我分析我方法的可靠性呢? 2)如何分析模型的可靠性呢?我文中的評(píng)價(jià)指標(biāo)是相關(guān)度,均方根誤差(RMSE)、平均絕對(duì)誤差(MAE)、平均絕對(duì)百分誤差(MAPE),這些不能說明可靠性嗎?還有Bayesian analysis modelling是用來驗(yàn)證可靠性的嗎? |
木蟲之王 (文學(xué)泰斗)
peterflyer
新蟲 (初入文壇)
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