论文抄袭检测大师在线答疑

2024-05-16

论文抄袭检测大师在线答疑(精选4篇)

篇1:论文抄袭检测大师在线答疑

同学们对于论文抄袭最集中的几个问题是:

1。硕士、本科生需要检测论文吗?

2。论文抄袭检测率多少才能通过?

3。论文写作中,抄袭是不可避免的,说好听点是借鉴,不好听就是抄袭文章,那么,怎么写文章才能通过抄袭检测呢?

4。论文抄袭检测出来了,后果是什么,学校怎么处理?

5。论文抄袭检测大师目前是免费的,以后会收费吗?

在此,论文抄袭检测大师的工作人员针对论文检测的方方面面,给出了论文抄袭的一些指导意见。

问题一:硕士、本科生需要检测论文吗?

论文抄袭检测大师答:

是的,现在的论文都需要进行检测,我们研发论文检测系统的目的也是帮助学生对自己的论文进行修正。单纯的抄袭对学业是没有帮助的,哪怕是用自己的话把别人的意思说出来,对你的专业学习也是一种进步。

现在大学对论文抄袭查的很紧,知网也开发出了大学生论文抄袭检测系统,各位同学不要抱着侥幸心理,一定要重视自己的文章。

如果有什么疑问或者觉得自己抄袭的很严重,可以根据自己的情况到论文抄袭检测大师的官方网站提问。

问题二:论文抄袭检测率多少才能通过?

论文抄袭检测大师答:

学校一般规定是30%。这里面存在的一个问题,就是以什么为标准。现在市面上的系统有好几个,但是学校一半用知网的检测系统。

这里有个问题,系统不一样,检测结果也不一样,有同学用论文抄袭检测大师的测出是29%,就以为不用修改了。这种情况是不行的,毕竟不是同一个系统。如果你根据检测结果,把这29%降为0。我相信,不管你什么系统都能轻松过关。

我们系统的研发目的也是这样。

问题三:论文写作中,抄袭是不可避免的,说好听点是借鉴,不好听就是抄袭文章,那么,怎么写文章才能通过抄袭检测呢?

论文抄袭检测大师答:

这个问题很经典。那么我们先来看看论文检测的原理吧。

1。论文检测首先是文字和词的匹配。如果你连续超过20-50个字都是一样的,不用说,肯定会判断为抄袭。

2。其次是词意的匹配,有同学误以为批量替换可以解决问题。实际不然,检测系统都含有同义词库,词意和语义也是抄袭判定的重要依据。

知道了这些,我们如何来修改抄袭了的文章呢?.首先,不能生搬硬套,你看了别人的文章,核心的观点用自己的话说出来,是绝对可以的。其次,参考文献对你的文章抄袭率影响很关键。不管哪个检测系统,都是支持参考文献的匹配的。有的同学在使用论文抄袭检测大师的系统时,把参考文献删了,大大影响抄袭率,测出来的六七十。

还有,有同学说英文翻译可以躲过抄袭检测,这也是个误区。检测系统都会有英文数据库,如果单纯的翻译,是会被查到的。但是由于现有的几个系统对这方面的检测能力还不够,你颠倒顺序,多加几道工序,也有一定的效果。不过建议不要碰运气。毕竟影响自己的学业。问题四:论文抄袭检测出来了,后果是什么,学校怎么处理?

论文抄袭检测大师答:

这个不一定,还是要看学校的意见。我们能做的,是帮同学们过关,检测不是目的,是为了提高你的通过技能。呵呵。

问题五:论文抄袭检测大师目前是免费的,以后会收费吗?

论文抄袭检测大师答:

瑞然论文抄袭检测大师已经是第二版了,不过免费的论文检测我们还会做下去,坚持服务同学。

再次也欢迎更多的同学使用我们的系统,在使用的过程中,我们也将赠送几名热心的同学整理的《论文抄袭检测大师修改秘籍【独家】》,里面讲解了最快速的论文修改方法,和具体的案例。

篇2:论文抄袭检测大师在线答疑

下面是从知网内部工作人员拿到的关于知网检测系统,揭示了知网学术不端检测系统的具体算法,如何判定论文抄袭,以及如何修改来通过的技巧秘籍。与大家一起分享。

1,格式要求

测试文本上传整个文件格式,测试结果可能会受到影响,您将需要提交的最后的格式检测将影响降到最低,可能无法检测到几十个小块的话。不会影响转移。算法更复杂的系统,每个修改过的第一个测试可能无法检测到在第一的文件副本(经过2年的实践经验表明,小件不超过200字,二次修复的变化,将大大降低率一般抄袭)

2,比库

全部文本中国重要报纸在中国的专利文本数据库,个人图书馆的数据库比较数据库:中国学术期刊网络出版池,充满了中国博士论文/中国期刊中国学术期刊数据库的比例全部文本数据库,比其他图书馆,一些书不知网库无法检测抄袭。知网库是由大学论文论文知网检测系统指定的状态指定为国家图书馆的纸检测对比检测系统,该系统是最好的,最广泛的官方检查制度,检测知网的大学制度,这是教育部学术不端行为的考虑公平实施。

3,分分章的结果

上传一个文件,系统会自动检测到的文件信息节,如果你设置的内置分章知网,以确定系统的条件下进行测试,分章学校的目录系统的结果,否则它会点出来的结果。科或分章节,主要涉及到4门槛。纸提醒分章或一节,和学校的完整性,可以保持不变。

4,参考文献,可以检测到它呢?

有的学生问:“我显然是指他人的段落或句子,为什么没有检测到它吗?”有同学问:“我参考标记的源泉,为什么复制?”首先,引用计数为抄袭,并没有什么标记,不能被检测的参考源,和以下系统是准确的,不要紧。所有这些都是由系统阈值。中国知网检测灵敏度的系统设置的阈值设置,3%的线段(或章节)的阈值来计算的话,不到3%的文章不能被复制或引述检测这种情况下,在一个小的文本块,一句话或一个小的共同的概念。我们举例说明: 5000字的第一章,第一章,我们将参考只有150字以内,否则系统将被视为剽窃。第二章4000字,那么我们只能参考120字以内,否则系统将被视为剽窃。章8000字,章7000字,240字以内,分别和210字以内,依此类推。总之,原因是太多的计算是基于本章的基础,这是通过复制相同的计算上。

5,一个字,就如何系统考虑抄袭?

该文件的副本将被检测到,如何?文本文件的测试条件是20个单位或更多的类似的话,或抄袭他人作品将被标记为红色,但它必须满足四个先决条件:你从文件中的部分(章节),一个文本引用或复制到3%的所有测试的总和。作者:

6,修改后的形式抄袭

标准加入法3个红色的文字变化,换句话说,一个字的变化,方式的转变(改变原句是倒装句,被动句,主动句,等等)的描述,扰乱了该段的顺序删除关键的词汇,单词等。认为,结合上述方法可以有效地降低复制的比例,以确保顺利通过。

整体而言,我们需要确保流畅,句子字面上尽可能的句子的前提下,并保持差异。例1:例如,下面的句子:

过热的变压器过热和正常运行的热力差异的失败,从绕组和铁芯,其中铜损和铁损,变压器过热故障的正常运行的热源,是因为有效的热绝缘加速恶化所造成的压力,它有一个中等水平的能量密度。

几乎标记为红色,说明有一个类似的文学和高度相似,这些方法的组合重叠,这句话可以改为:

曲径通幽,可以很容易混淆在高温过热过热的变压器故障和核心是铜损和铁损现象,这是正常运作的正常运行,有效的热应力的变压器绝缘的加速恶化所造成的过热故障的热,法律事务厅300字在这里是一个粗略的价值,而不是门槛。参考号码,我们不容易被发现。

香港公开进修学院以后的更新CNKI学术不端行为检测系统将调整阈值的3%,5%以前,意味着更严格的要求,参考测试系统,但用我们的方法中提到,以后是不是很难。一个中等水平的密度的能力。

这个修改就可以减少近一半的复制率。

例2:考虑下面的句子:

3.7.1.2在透明的玻璃水,搅拌少量的纤维,他们可以直观地找到暂停三维纤维

样混乱的蔓延,并放置很长一段时间不会有太大的变化,说明质量好合成纤维质量差纤维混合后,可以分散,但很快,它将作为絮状层。均匀地分散在这个过程中中质量较差的混凝土和纤维的实际准备更加困难。

本节是完全在红色标记的,不变的是,只有一个办法,就是打乱顺序,重新组织。

篇3:论文抄袭检测大师在线答疑

关键词:自动文摘,关键词,提取,检索,抄袭检测

1. I nt r oduct i on

So-called automatic abstraction is to automatically extract abstracts from the original literature using the computer[1].Automatic abstraction quickly condenses and extracts a large of electronic texts,which is an accurate and efficient way to accelerate the reading and obtain information resources.So-called abstract is a brief and coherent passage to reflect the central content of a document accurately,mainly including the following three types:instruction,information and comment[2].This paper mainly studies on information abstract,a kind of concentrated expression for the details of the content.It can help users to grasp the core content of the original paper only through reading the abstract,and greatly save the time and improve the efficiency of reading.The main purpose of this study is to design a kind of automatic abstraction techniques based on keywords retrieval and apply it to the rapid detection of paper copy.

2. Over vi ew of Aut omat i c Abst r act i on Technol ogy

Automatic abstraction consists of three steps:text analysis,informationselectionandgeneralization,andgenerating abstracts.Textanalysisfindsthemostrepresentative componentsoforiginalcontents.Conversionprocess compresses text through summary.The last step is to recombine the original content and generate abstracts[3].

Automatic abstraction includes four main methods:automati c extraction,automatic abstraction based on understanding,information extraction and automatic abstraction based on structure[4].

2.1 Automatic Extraction

Automatic extraction regards text as a linear sequence sentences and the sentence as a linear sequence of words.It usually works by four steps:(1)calculating the right value of words;(2)calculating the right value of sentences;(3)descending the order of all the original sentences from the highest value to the lowest,and the highest one is selected as abstract words;(4)outputting all abstract words according to their order in the original text.In automatic extraction,the calculation of word value and sentence value and the selection of abstract words are all on the basis of the six kinds of text form:word-frequency,title,position,syntax structure,clue words and demonstrative expressions.These six features are the basis of automatic extraction and they indicate the theme of the text from different angles.

2.2 Automatic Abstraction Based on Understanding

The obvious difference between this mathod and automatic abstraction lies in the use of knowledge.It not only obtains language structure by using the knowledge of linguistics,but also gets the significance of abstract by using the knowledge of this field.Finally it produces the abstract from the significance.

2.3 Information Extraction

Information extraction means to automatically identify the information such as referring to an entity,relationship,and event from a given set of texts and store or manage all the information.The method of using information extraction to carry out automatic summarization should firstly identify the themes of text,then choose the framework of abstracts,analyze the useful fragments of information extraction deeply and use relevant phrases or sentences to fill the abstract framework.Lastly,we will make use of the abstract model to convert the content in the framework into the abstract and output it.

2.4 Automatic Abstraction Based on Structure

The abstract words are usually regarded as top sentences which are related to many sentences in a network composed of sentences.The relationship between sentences can be judged by that of words or conjunctions.To a long article,it also can be regarded as a network of paragraphs.We can give each paragraph a feature vector,and take the inner product of these two paragraphs eigenvector as the connection strength of them.If the connection strength is beyond the given threshold,the two paragraphs have semantic links.Lastly,the central groups with the link to many segments are extracted to form an abstract of an article.

3. A Techni que of Aut omat i c Abst r act i on Based on Keywor d Ret r i eval

3.1 Keyword Extraction

The algorithm model of keyword extraction puts the following into a full framework,such as word segmentation and part-of-speech tagging,text pretreatment,linear weighting algorithm,the formation and filtration of combined words,merging keywords,etc.And the two important data structures are the word information table the compound word information table.The generated combined words are not regarded as exceptions,but to give them value with the scientific method and take part in the competition with other words(the words made by the algorithm of linear weighting).Then we merge the two tables and get the ultimate keywords[5].

We first deal with text pretreatment,and the system of word segmentation and part-of-speech tagging,then use the algorithm of linear weighting.Through analyzing the frequency of the Chinese text,part of speech and the position of phrases,we quantize the weighting factor and calculate the value of each word.Then the candidate keys are extracted according to the size of value,and take them as the basis of final keywords.Based on the method of getting combined words by using linear weighted algorithm,we can get the second candidate keywords list.Finally the repeated items in these two tables are taken away,and the keywords are produced according to the right order of the size of value.Meanwhile,the number of keywords can be specified by users.

3.2 Algorithm of Automatic Abstraction

The algorithm of automatic abstraction first does the text segmentation by using segmentation tools[6];then it extracts the keywords,on the one hand,it stores the keywords according to the unit of paragraphs;each keyword is given different weights by the order of extraction(1.0,0.9,0.8),and the weight of each statement in every paragraph is calculated according to the value of keywords.Title,position and the length of sentences are also taken as the important factors of choosing abstracts besides word frequency.According to statistics,the chance of abstract words appearing on the title is around 95%,85%in the beginning of the paragraph,and 7%in the end of the paragraph.Therefore,the titles with keywords are directly seen as abstract words.The other statements are sorted by the order of weight,and the 5 sentences with the maximum weight in each paragraph are picked up as candidate key sentences.Then we select the abstract words considering the position and length of statements.Eventually the abstract of the whole thesis is formed.Specific processes are shown below:

4. Det ect i on of Thesi s Copyi ng Based on Aut omat-i c Abst r act i on

4.1 Basic Thought

Because most papers take up the large space,it is time-consuming to compare them.Therefore,we first compare their abstracts and again compare whole text if they have a high similarity to find the contents suspected of plagiarism.But some authors offer too simple abstracts,no more than200words;or the abstract is not too accurate.And to sum the full content of text is a good way to stress the key point.So here this paper deals with the themes with automatic abstraction and compare the abstracts so that the accuracy is improved.

4.2 Concrete Steps

Step 1:to segment the paper to be detected and the original one;

Step 2:to extract the keywords of the paper to be detected and the original one respectively and store them;

Step 3:to calculate and sort the weight of sentences in the paper to be detected and the original one respectively,and generate automatic abstracts;

Step 4:to compare the abstracts of the paper to be detected and the original one,calculate the similarity;to calculate the similarity of the abstract provided by the author and the automatic abstract;

Step 5:to suspect that it is a copy if the similarity is beyond 10%,make a further comparison between the whole text of the paper to be detected and the original one,output the copied contents.Otherwise,it is not thought as a copy.

4.3 Experimental Result

This paper designs the three copying files D1,D2,and D3to act as the test samples.The proportions of plagiarism are about 20%,30%and 50%respectively.And the main purpose is to test that different proportions of plagiarism have an influence on the result of the comparison.The paper calculates the similarity by using word-frequency statistics,that is,to get the proportion of similar words out of the total words[7].Figure 2is an interface of automatic abstraction system.Table 1 contains not only three copying files D1,D2 and their corresponding abstracts,but also the result of similarity between them and the original text,abstract and automatic abstracts.

4.4 Basic Summary

From the experiment result we can see that the similarity of the whole text and automatic abstract is very close to the proportion of copying.But the abstract provided by the writer sometimes makes some errors due to the accuracy and the words of the abstract.The abstract generated by the automatic abstraction based on keyword retrieval can roughly summarize the text,replace text to be detected.Of course it's only a preliminary inspection;detailed text detection still needs to be done.

In addition,the keywords given by some authors are less and not very accurate.This system usually extracts 5-8keywords,and they can reflect the theme of the text,so that the automatic abstract which is based on keywords retrieval is more accurate.

5. Concl usi on

The a bstract with good quality can replace the retrieval position of the original text to a certain extent and act as an alternative to the retrieval,so that it can reduce the time spent on the information retrieval.The experts at home and abroad are always exploring an accurate and efficient algorithm of automatic abstraction.There is still something to be improved in this paper.Generally,the abstract is about 700 words in a paper with 7000 words.The more the words or paragraphs of the text are,the more the words of abstract are.Therefore,it is necessary to reduce the number of words,that is,within 500words.We can combine a few paragraphs in the practice or pick up the key sentences for the unit of subtitle,not for the uni of paragraph.

参考文献

[1] 柴晓丽,自动文摘技术的研究与应用[D].硕士学位论文. 长春理工大学,2006.

[2] 黄丽琼,中文自动文摘及评价方法的研究[D].硕士学位论 文.重庆大学,2007.

[3] 郭燕慧,钟义信等,自动文摘综述,情报学报[J].2002,21 (5):582~591.

[4] 刘挺,王开铸,自动文摘的四种主要方法,情报学报[J]. 1999,18(1):10~19.

[5] 张红鹰,基于模糊处理的中文文本关键词提取算法[J].现 代图书情报技术,2009,(5):39~43.

[6] 李荣陆,文本分类及其相关技术研究[D].博士学位论文. 复旦大学,2005.

篇4:检测电子作业被抄袭的软件研究

关键词:电子作业 检测抄袭 关键字 截屏 距离计算

【中图分类号】G434

1引言

随着计算机应用的普及,高校正在逐步实现作业的电子化和网络化。这种作业形式的改革有效减少了教育资源浪费,教师工作任务量,提高了效率,使教与学得到了互动。作业的电子化是高校教学改革发展趋势,同时带来的负面影响则是加重抄袭现象,这就成为作业改革受到严重困扰的主要因素。所以研究一款减少抄袭现象发生的技术对作业质量的提高具有重要意义

2 国内外现状分析

大学作业抄袭在国内外已十分常见。中国青年报在调查中对2340人进行的一项调查显示,82.7%的人认为大学生作业抄袭现象普遍,45.5%的人感觉“非常普遍”。在国外,Cramster.com网站中包含数百本教科书附加答案,学生仅需月付少量金钱,便能轻松解决作业。

中国学者付兵在《基于信息隐藏技术的电子作业防抄袭研究》《网络环境与机房环境下电子作业反抄袭策略》这些篇论文中提到,他采用了信息隐藏算法对作业文本嵌入原创信息,对作业进行片段拷贝检测,从而准确定位抄袭源。西米苏里州立大学的J. Evan Noynaert教授在论文《Plagiarism Detection Software》中指出“Plagiarism detectionsoftware is a powerful tool in the fight against plagiarism.”并提出软件从三个方面来检测抄袭:Quiz methods ,Writing style methods以及Comparison with original sources。

在这些理论和实践的基础上,探究出一个方便直接的防抄袭系统,对大学生未来可持续发展都有积极的作用。

3 系统设计的主要设计思路

3.1设计方向

两个主要的设计方向:动态截屏和检查关键字个数。

3.2具体设计思路

3.2.1采用QT软件设计两个独立的客户端,分别为教师与学生使用。

3.2.2 教师端的采用QT的file读取技术,任意选择两个文件读入软件,统计文件中指定关键字的个数,利用算法得出两篇作业关键字个数的相似度,若相似度过高则可大体判断为抄袭。

3.2.3 学生端采用QT的图像截取技术,用定时器自动将电脑整个屏幕截图以图片格式保存在一个文件夹中。通过截图可判断做作业过程中学生是否出现异常操作。若短时间内截图中作业内容变化大或者截图中出现正在用浏览器搜索网络上的作业等,则可能存在抄袭。

4 研究过程

4.1图片定时记录以及存储

由于图像信息修改较为麻烦,能较真实的还原事物本质,则在研究过程中,着重利用Qt Creater中现有的针对图形图像处理的QPixmap类,运用其已有的grabWindow()函数,通过参数的设定,最终对学生电脑在作业时的整个屏幕进行捕捉记录,并利用saveScreen()函数将捕捉到的圖像信息以系统时间为命名方式存储在文件夹中,较为真实的还原了学生的作业过程。为了提高记录效率,后期利用Qtimer类以1min/张的频率进行图像信息的存储。

4.2内容对比检测

在数学中,空间向量的模越短,则两点坐标越相近。基于这一性质,系统罗列了电子作业中大部分可能用到的关键词,并按照其字符串长度进行排序,形成一个n维数组arr[n]。其次,对需进行比较的电子作业进行关键词的提取,记录各个关键词的数量,并按照数组arr[n]中元素的排列方式形成两组n维数组a[n]和b[n]。那么就等同于得到了2个三维坐标,在空间向量中,我们可以利用数学公式(1)求出二个向量之间的模,从而得到两点间的距离,为了增加检测结果的可信度检测程序中录入了50余个关键字。

公式1 计算距离的公式

根据d的数值大小来判定相对比的两份电子作业相似性。我们设定了一个指定的阙值,当得到的结果d的数值小于等于该指定阙值5时,则可判定为疑似抄袭。

结束语

现如今的中国高等教育的教育模式基本类似于“师傅领进门,修行靠个人”,在经历过快节奏的高中生涯后,自由的大学生活给大学生带来巨大的心理反差,许多人不再专心于专业课程学习,渐渐荒废学业,致使毕业时前途迷茫,遗憾蹉跎。

本项目的研究主要以检测大学生是否抄袭作业,使大学生独立自主完成专业作业,培养个人良好素质习惯。为社会输送更多学而有成的专业能手。提高高等教育培养出优秀人才的比例。对自身以及社会都有良好的影响。

本研究的特点,它是具有一定实用性的检测软件。可以从多个方面来判断抄袭,容易操作,简单,可行性大。

参考文献:

[1]付兵.基于信息隐藏技术的电子作业防抄袭研究.长江大学计算机科学学院:1-5.

[2]祁俊.王晓英.抄袭检测系统对计算机类电子作业的影响分析.青海大学:1-3.

[3]化柏林.抄袭检测系统将给中国学术界带来的变化.科技导报, 2009,27(12),107.

[4]胡秋芬.电子作业防拷贝技术比较研究.浙江越秀外国语学院, 2013,34(6):59-60.

[5]李建军.反抄袭软件的局限及学术打假之策.编辑之友·术业,2010,6:87-91.

[6]罗国辉.反抄袭系统的设计与实现.开发研究与设计技术,2007,1615-1616.

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