首页 > 最新文献

2014 International Conference on Information Systems and Computer Networks (ISCON)最新文献

英文 中文
Measuring similarity between user profile and library book 测量用户档案和图书馆图书之间的相似度
Pub Date : 2014-03-01 DOI: 10.1109/ICISCON.2014.6965217
S. B. Shirude, S. Kolhe
In the development of recommender system either the content or collaborative filtering is necessary. To filter the records it is required to measure the similarity between profile of user and items present in the dataset. This experiment is performed on the dataset containing 978 books related to computer science field and 7 users. Similarity between profile of user and contents of book is measured using Euclidean, Manhattan, Minkowski, Cosine distances. The results are evaluated and compared. This work is useful in the development of library recommender system.
在推荐系统的开发中,无论是内容过滤还是协同过滤都是必不可少的。为了过滤记录,需要测量用户配置文件与数据集中存在的项目之间的相似性。本实验在包含978本计算机科学领域相关书籍和7个用户的数据集上进行。使用欧几里得距离、曼哈顿距离、闵可夫斯基距离和余弦距离来测量用户轮廓和图书内容之间的相似性。对结果进行了评价和比较。该工作对图书馆推荐系统的开发具有一定的参考价值。
{"title":"Measuring similarity between user profile and library book","authors":"S. B. Shirude, S. Kolhe","doi":"10.1109/ICISCON.2014.6965217","DOIUrl":"https://doi.org/10.1109/ICISCON.2014.6965217","url":null,"abstract":"In the development of recommender system either the content or collaborative filtering is necessary. To filter the records it is required to measure the similarity between profile of user and items present in the dataset. This experiment is performed on the dataset containing 978 books related to computer science field and 7 users. Similarity between profile of user and contents of book is measured using Euclidean, Manhattan, Minkowski, Cosine distances. The results are evaluated and compared. This work is useful in the development of library recommender system.","PeriodicalId":193007,"journal":{"name":"2014 International Conference on Information Systems and Computer Networks (ISCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130245356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
RC-OCP: Reverse coordinated optimized commit protocol RC-OCP:反向协调优化提交协议
Pub Date : 2014-03-01 DOI: 10.1109/ICISCON.2014.6965224
G. Chauhan, M. K. Gupta, A. Khunteta
With the growth of trends in computing and requirement for developing a reliable computing environment the need for performing tasks in distributed manner has gained much importance. Atomic commit protocols (ACP) are used to preserve the ACID property in distributed systems. Two-Phase Commit (2PC) is most widely used but the blocking of sites is undesirable as these sites may be holding locks on the resources. As alternative, non-blocking ACP has been suggested: This nonblocking protocol is Three-Phase Commit (3PC) protocol which requires an extra phase (pre-commit) to remove blocking state. The existing protocols require so many messages transfer from the coordinator to participants and vice versa during different phases and corresponding increase communication and time complexity and hold the locks acquire by different participants till the end of last phase, forcing other transactions also to be blocked just because of the objects that are locked. All the existing protocols give the same performance for both deferred and immediate consistency constraints databases. Lots of protocols are being proposed and mainly the concentration was to make the 2PC protocol non-blocking or to minimize the blocking possibilities in 2PC. There has been a renewed interest in developing and optimization of more efficient ACPs. This paper is an effort to propose a new technique to optimize atomic commit protocols by optimizing voting phase based on deferred and immediate consistency constraints. Also an attempt has been made to propose reduction in communication complexity which will require less number of messages to be shared between coordinator and participants, the cost of execution as well as time delays.
随着计算趋势的发展和对可靠计算环境的要求,以分布式方式执行任务的需求变得越来越重要。原子提交协议(ACP)用于在分布式系统中保持ACID属性。两阶段提交(Two-Phase Commit, 2PC)是最广泛使用的,但是阻塞站点是不可取的,因为这些站点可能持有对资源的锁。作为替代方案,建议使用非阻塞ACP:这种非阻塞协议是三相提交(3PC)协议,它需要额外的阶段(预提交)来消除阻塞状态。现有的协议需要在不同的阶段从协调器到参与者传输大量的消息,反之亦然,这相应地增加了通信和时间复杂性,并将不同参与者获得的锁保留到最后一个阶段结束,迫使其他事务也因为锁定的对象而被阻塞。所有现有协议对延迟一致性约束和即时一致性约束数据库都提供相同的性能。许多协议被提出,主要集中在使2PC协议无阻塞或最小化2PC中的阻塞可能性。人们重新对开发和优化更有效的acp产生了兴趣。本文提出了一种基于延迟一致性约束和即时一致性约束的投票阶段优化原子提交协议的新技术。此外,还提出了减少通信复杂性的建议,这将减少协调器和参与者之间共享的消息数量,减少执行成本和时间延迟。
{"title":"RC-OCP: Reverse coordinated optimized commit protocol","authors":"G. Chauhan, M. K. Gupta, A. Khunteta","doi":"10.1109/ICISCON.2014.6965224","DOIUrl":"https://doi.org/10.1109/ICISCON.2014.6965224","url":null,"abstract":"With the growth of trends in computing and requirement for developing a reliable computing environment the need for performing tasks in distributed manner has gained much importance. Atomic commit protocols (ACP) are used to preserve the ACID property in distributed systems. Two-Phase Commit (2PC) is most widely used but the blocking of sites is undesirable as these sites may be holding locks on the resources. As alternative, non-blocking ACP has been suggested: This nonblocking protocol is Three-Phase Commit (3PC) protocol which requires an extra phase (pre-commit) to remove blocking state. The existing protocols require so many messages transfer from the coordinator to participants and vice versa during different phases and corresponding increase communication and time complexity and hold the locks acquire by different participants till the end of last phase, forcing other transactions also to be blocked just because of the objects that are locked. All the existing protocols give the same performance for both deferred and immediate consistency constraints databases. Lots of protocols are being proposed and mainly the concentration was to make the 2PC protocol non-blocking or to minimize the blocking possibilities in 2PC. There has been a renewed interest in developing and optimization of more efficient ACPs. This paper is an effort to propose a new technique to optimize atomic commit protocols by optimizing voting phase based on deferred and immediate consistency constraints. Also an attempt has been made to propose reduction in communication complexity which will require less number of messages to be shared between coordinator and participants, the cost of execution as well as time delays.","PeriodicalId":193007,"journal":{"name":"2014 International Conference on Information Systems and Computer Networks (ISCON)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132479102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Agro App: An application for healthy living Agro App:健康生活应用
Pub Date : 2014-03-01 DOI: 10.1109/ICISCON.2014.6965213
Mayank Aggarwal, Apoorv Kaushik, Arpit Sengar, Aarju Gangwar, Ambuj Singh, V. Raj
Mobile applications and services make things simpler fulfilling our daily needs for information, communication, entertainment or leisure. Mobile Applications have brought a new revolution. In this paper we provide one such mobile application “Agro-App” under development by us, which can lead to a healthy life. Agro-App is a mobile application built keeping the farmers in mind and also a common man who wants to grow vegetables for his daily need. It keeps a farmer updated with all the information related to crop, pesticides, insecticides, financial sector etc. It provides detailed information about which crop to grow in which season and which crop is suitable for that particular area in which the farmer is living. Government of India is spending millions of money to make ICT helpful for agriculture purpose but the hindrance is the literacy of farmers mobile being a common device now, with this application we aim to make it friendly for farmers.
移动应用程序和服务使事情变得更简单,满足了我们对信息、通信、娱乐或休闲的日常需求。移动应用带来了一场新的革命。在本文中,我们提供了一个这样的移动应用程序“农业应用程序”,我们正在开发的,可以导致健康的生活。农业应用程序是一个移动应用程序建立保持农民的头脑,也是一个普通人谁想要种植蔬菜,以满足他的日常需要。它使农民能够更新与作物、农药、杀虫剂、金融部门等有关的所有信息。它提供了在哪个季节种植哪种作物以及哪种作物适合农民居住的特定地区的详细信息。印度政府正在花费数百万美元使ICT对农业有用,但障碍是农民的识字能力,现在移动设备是一种常见的设备,我们的目标是通过这个应用程序使其对农民友好。
{"title":"Agro App: An application for healthy living","authors":"Mayank Aggarwal, Apoorv Kaushik, Arpit Sengar, Aarju Gangwar, Ambuj Singh, V. Raj","doi":"10.1109/ICISCON.2014.6965213","DOIUrl":"https://doi.org/10.1109/ICISCON.2014.6965213","url":null,"abstract":"Mobile applications and services make things simpler fulfilling our daily needs for information, communication, entertainment or leisure. Mobile Applications have brought a new revolution. In this paper we provide one such mobile application “Agro-App” under development by us, which can lead to a healthy life. Agro-App is a mobile application built keeping the farmers in mind and also a common man who wants to grow vegetables for his daily need. It keeps a farmer updated with all the information related to crop, pesticides, insecticides, financial sector etc. It provides detailed information about which crop to grow in which season and which crop is suitable for that particular area in which the farmer is living. Government of India is spending millions of money to make ICT helpful for agriculture purpose but the hindrance is the literacy of farmers mobile being a common device now, with this application we aim to make it friendly for farmers.","PeriodicalId":193007,"journal":{"name":"2014 International Conference on Information Systems and Computer Networks (ISCON)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114372195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
An efficient system to identify user attentiveness based on fatigue detection 基于疲劳检测的用户注意力识别系统
Pub Date : 2014-03-01 DOI: 10.1109/ICISCON.2014.6965210
Syed Imran Ali, P. Singh, Sameer Jain
This paper presents a user alertness identification system based on fatigue detection. The user may be a person like computer operator, operating critical operations on distant machines, hands free interaction with computational devices/machines, controlling heavy machineries like cranes or performing time critical operations like air traffic controlling etc. Same system can also be employed to detect and notifying the driver vigilance level and hence to avoid possibility of road accidents. The proposed system uses the time-efficient image processing techniques to measure eyes closer count, blinking rate of eye and user yawning as the parameters to conclude user's fatigue. The proposed system continuously captures the image of the subject on site using web camera and detects face region, then focuses on eyes and lips using efficient image processing techniques to monitor their behavior. If abnormality either in behavior of eyes or mouth is detected, it indicates that the subject is falling asleep or having state of drowsiness therefore fatigue is detected and a warning alarm is generated.
提出了一种基于疲劳检测的用户警觉性识别系统。用户可以是像计算机操作员这样的人,在远程机器上操作关键操作,与计算设备/机器进行自由交互,控制重型机械,如起重机或执行时间关键操作,如空中交通管制等。同样的系统也可以用来检测和通知司机的警惕水平,从而避免可能发生的交通事故。该系统采用省时高效的图像处理技术,通过测量眼睛靠近次数、眼睛眨眼频率和用户打哈欠作为判断用户疲劳程度的参数。该系统利用网络摄像头连续捕捉被测者的现场图像并检测面部区域,然后利用高效的图像处理技术对被测者的眼睛和嘴唇进行聚焦监测。如果检测到眼睛或嘴巴的行为异常,则表明受试者正在入睡或处于困倦状态,因此检测到疲劳并发出警告警报。
{"title":"An efficient system to identify user attentiveness based on fatigue detection","authors":"Syed Imran Ali, P. Singh, Sameer Jain","doi":"10.1109/ICISCON.2014.6965210","DOIUrl":"https://doi.org/10.1109/ICISCON.2014.6965210","url":null,"abstract":"This paper presents a user alertness identification system based on fatigue detection. The user may be a person like computer operator, operating critical operations on distant machines, hands free interaction with computational devices/machines, controlling heavy machineries like cranes or performing time critical operations like air traffic controlling etc. Same system can also be employed to detect and notifying the driver vigilance level and hence to avoid possibility of road accidents. The proposed system uses the time-efficient image processing techniques to measure eyes closer count, blinking rate of eye and user yawning as the parameters to conclude user's fatigue. The proposed system continuously captures the image of the subject on site using web camera and detects face region, then focuses on eyes and lips using efficient image processing techniques to monitor their behavior. If abnormality either in behavior of eyes or mouth is detected, it indicates that the subject is falling asleep or having state of drowsiness therefore fatigue is detected and a warning alarm is generated.","PeriodicalId":193007,"journal":{"name":"2014 International Conference on Information Systems and Computer Networks (ISCON)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132502877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Generating domain specific ontology for retrieving Hidden Web contents 生成用于检索隐藏Web内容的特定领域本体
Pub Date : 2014-03-01 DOI: 10.1109/ICISCON.2014.6965220
Manvi, A. Dixit, K. Bhatia, Bhumika Wadhwa
Tremendous information present on the Internet is available only when the user type set of keywords for search for getting the result pages. Those pages are often referred as Hidden Web. The components like hidden Web crawler which wants to retrieve this hidden information has to fill the search interfaces automatically. For automatically filling these types of interfaces precise and relevant information is needed. A database that stores semantic information about objects and their relations may solve this purpose. This database can be defined with the help of Ontology defines common vocabulary. The work presented here mainly focuses on generating domain specific ontology for retrieving hidden Web contents. In this paper a knowledge base of Book domain has created using Protégé. All information stores as knowledge base in form of RDF triples <;subject predicate object>. This Knowledge base may be used in automatically filling up search interfaces for retrieving hidden Web data.
互联网上的大量信息只有在用户键入搜索关键字集以获取结果页面时才可用。这些页面通常被称为隐藏的网络。想要检索这些隐藏信息的组件,如隐藏Web爬虫,必须自动填充搜索界面。为了自动填充这些类型的接口,需要精确和相关的信息。存储对象及其关系的语义信息的数据库可以解决这个问题。该数据库可以借助本体定义通用词汇表进行定义。这里介绍的工作主要集中在为检索隐藏的Web内容生成特定领域的本体。本文利用proprosamadgase建立了图书领域的知识库。所有信息以RDF三元组的形式存储为知识库。此知识库可用于自动填充检索隐藏Web数据的搜索界面。
{"title":"Generating domain specific ontology for retrieving Hidden Web contents","authors":"Manvi, A. Dixit, K. Bhatia, Bhumika Wadhwa","doi":"10.1109/ICISCON.2014.6965220","DOIUrl":"https://doi.org/10.1109/ICISCON.2014.6965220","url":null,"abstract":"Tremendous information present on the Internet is available only when the user type set of keywords for search for getting the result pages. Those pages are often referred as Hidden Web. The components like hidden Web crawler which wants to retrieve this hidden information has to fill the search interfaces automatically. For automatically filling these types of interfaces precise and relevant information is needed. A database that stores semantic information about objects and their relations may solve this purpose. This database can be defined with the help of Ontology defines common vocabulary. The work presented here mainly focuses on generating domain specific ontology for retrieving hidden Web contents. In this paper a knowledge base of Book domain has created using Protégé. All information stores as knowledge base in form of RDF triples <;subject predicate object>. This Knowledge base may be used in automatically filling up search interfaces for retrieving hidden Web data.","PeriodicalId":193007,"journal":{"name":"2014 International Conference on Information Systems and Computer Networks (ISCON)","volume":"414 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123570656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Hybrid addressing scheme for preemptive distributed address mechanism 抢占式分布式地址机制的混合寻址方案
Ketki P. Kardile-gawali, V. Kimbahune
ZigBee is the most powerful standard for wireless sensor network. Pre-emptive Distributed Address Assignment (PDAA) Mechanism used to improves Zig-Bee address assignment and PDAA Mechanism Presents an auto-routing mechanism which doesn't store any information into routing table. There are two types of devices such as router and end device. But in ZigBee & PDAA mechanism has a problem that there is parent & child relationship i.e. packet follow Tree topology to forward the packet from source to destination and second problem is address reuse mechanism. So, This Paper Proposes a Hybrid routing scheme to reduce the routing cost by using the neighbor table that is originally defined in the ZigBee standard and Provide address reuse facility. In ZigBee and PDAA mechanism address reuse facility is a main issue so by using AODV routing protocol is used to provide address reuse facility.
ZigBee是最强大的无线传感器网络标准。先发制人式分布式地址分配机制(Pre-emptive Distributed Address Assignment, PDAA)是对zigbee地址分配和PDAA机制的改进,提出了一种不向路由表中存储任何信息的自动路由机制。设备分为路由器和终端设备两种。但是在ZigBee和PDAA机制中存在父子关系的问题,即数据包遵循树拓扑结构将数据包从源转发到目标,第二个问题是地址重用机制。为此,本文提出了一种混合路由方案,利用ZigBee标准中原有的邻居表,并提供地址复用功能,以降低路由成本。在ZigBee和PDAA机制中地址复用是一个主要问题,因此通过使用AODV路由协议来提供地址复用功能。
{"title":"Hybrid addressing scheme for preemptive distributed address mechanism","authors":"Ketki P. Kardile-gawali, V. Kimbahune","doi":"10.5120/14563-2671","DOIUrl":"https://doi.org/10.5120/14563-2671","url":null,"abstract":"ZigBee is the most powerful standard for wireless sensor network. Pre-emptive Distributed Address Assignment (PDAA) Mechanism used to improves Zig-Bee address assignment and PDAA Mechanism Presents an auto-routing mechanism which doesn't store any information into routing table. There are two types of devices such as router and end device. But in ZigBee & PDAA mechanism has a problem that there is parent & child relationship i.e. packet follow Tree topology to forward the packet from source to destination and second problem is address reuse mechanism. So, This Paper Proposes a Hybrid routing scheme to reduce the routing cost by using the neighbor table that is originally defined in the ZigBee standard and Provide address reuse facility. In ZigBee and PDAA mechanism address reuse facility is a main issue so by using AODV routing protocol is used to provide address reuse facility.","PeriodicalId":193007,"journal":{"name":"2014 International Conference on Information Systems and Computer Networks (ISCON)","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115470633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
2014 International Conference on Information Systems and Computer Networks (ISCON)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1