全文获取类型
收费全文 | 449篇 |
免费 | 3篇 |
国内免费 | 3篇 |
专业分类
电工技术 | 7篇 |
综合类 | 16篇 |
化学工业 | 32篇 |
金属工艺 | 14篇 |
机械仪表 | 21篇 |
建筑科学 | 8篇 |
矿业工程 | 3篇 |
能源动力 | 20篇 |
轻工业 | 9篇 |
水利工程 | 1篇 |
石油天然气 | 7篇 |
武器工业 | 1篇 |
无线电 | 31篇 |
一般工业技术 | 214篇 |
冶金工业 | 16篇 |
自动化技术 | 55篇 |
出版年
2023年 | 9篇 |
2022年 | 5篇 |
2021年 | 25篇 |
2020年 | 22篇 |
2019年 | 12篇 |
2018年 | 16篇 |
2017年 | 16篇 |
2016年 | 33篇 |
2015年 | 30篇 |
2014年 | 39篇 |
2013年 | 31篇 |
2012年 | 15篇 |
2011年 | 33篇 |
2010年 | 19篇 |
2009年 | 24篇 |
2008年 | 14篇 |
2007年 | 9篇 |
2006年 | 16篇 |
2005年 | 17篇 |
2004年 | 13篇 |
2003年 | 12篇 |
2002年 | 8篇 |
2001年 | 7篇 |
2000年 | 7篇 |
1999年 | 6篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1984年 | 5篇 |
排序方式: 共有455条查询结果,搜索用时 15 毫秒
1.
This article is based on experiences with data and text mining to gain information for strategic business decisions, using host-based analysis and visualisation (A/V), primarily in the field of patents. The potential advantages of host-based A/V are pointed out and the features of the first such A/V software, STN®AnaVist™, are described in detail. Areas covered include the user interfaces, initial set of documents for A/V, data mining, text mining, reporting, and suggestions for further development. 相似文献
2.
结合条件随机场与伯克利句法分析器对中文专利文献中的单层并列结构进行识别。在经过分词和词性标注的中文专利语料的基础上,分别运用条件随机场和伯克利句法分析器对专利语料中的单层并列结构进行识别,提取两种机器模型相同的和识别结果中满足相应规则的并列结构识别结果。实验结果表明,该方法有效的识别了专利文献中的单层并列结构,取得了73.09%的F值。 相似文献
3.
《Advanced Engineering Informatics》2015,29(4):918-929
Apple is a leading company of technological evolution and innovation. This company founded and produced the Apple I computer in 1976. Since then, based on its innovative technologies, Apple has launched creative and innovative products and services such as the iPod, iTunes, the iPhone, the Apple app store, and the iPad. In many fields of academia and business, diverse studies of Apple’s technological innovation strategy have been performed. In this paper, we analyze Apple’s patents to better understand its technological innovation. We collected all applied patents by Apple until now, and applied statistics and text mining for patent analysis. By using graphical causal inference method, we created the causal relations among Apple keywords preprocessed by text mining, and then we carried out the semiparametric Gaussian copula regression model to see how the target response keyword and the predictor keywords are relating to each other. Furthermore, Gaussian copula partial correlation was applied to Apple keywords to find out the detailed dependence structure. By performing these methods, this paper shows the technological trends and relations between Apple’s technologies. This research could make contributions in finding vacant technology areas and central technologies for Apple’s R&D planning. 相似文献
4.
5.
Modern information technologies and in particular the internet have revolutionized the patent information professionals' work in terms of speed of access and information comprehensiveness from both company internal and external digital sources. Here, I describe how the digital mindmapping technique can be used to complement existing intellectual property management software solutions to meet the challenge of optimizing and managing patent search workflows as well as to rapidly organise and access highly dynamic, heterogeneous and scattered patent information sources. Both eye catching and highly memorable and at the same time self-explanatory mindmapping examples are presented. These were designed to include basic and advanced level digital mindmapping features tailored to significantly speed up and maintain a high work quality level of patent search professionals. A special emphasis is put on the great benefit of organising and accessing the plethora of internet-based worldwide online patent registers through mindmapping, both in terms of managing the constantly changing deep links to the actual search options for e.g., legal status information, and keeping track of the offered level of content. 相似文献
6.
7.
The nature, definition, typical services, utility and future developments in Open Patent Services (OPS) are described. This is with particular reference to the European Patent Office (EPO), and German Patent and Trademark Office (GPTO) systems. The impact of OPS on both information providers and users is discussed. 相似文献
8.
This article provides an overview of the factors that may contribute to the effective term of protection for a pharmaceutical product in the USA––by patent and by FDA market exclusivities, identifies public and commercial sources for collecting relevant patent term and exclusivity data, and provides a strategy for ensuring that the effective term of protection has been calculated accurately. 相似文献
9.
This work introduces a deep learning pipeline for automatic patent classification with multichannel inputs based on LSTM and word vector embeddings. Sophisticated text mining methods are used to extract the most important segments from patent texts, and a domain-specific pre-trained word embeddings model for the patent domain is developed; it was trained on a very large dataset of more than five million patents. The deep learning pipeline is using multiple parallel LSTM networks that read the source patent document using different input dimensions namely embeddings of different segments of patent texts, and sparse linear input of different metadata. Classifying patents into corresponding technical fields is selected as a use case. In this use case, a series of patent classification experiments are conducted on different patent datasets, and the experimental results indicate that using the segments of patent texts as well as the metadata as multichannel inputs for a deep neural network model, achieves better performance than one input channel. 相似文献
10.
Welcome to the quarterly Literature Listing intended as a current awareness service for readers indicating newly published books, journal and conference articles on IP management; Information Retrieval Techniques; Patent Landscapes; Education & Certification; and, Legal & Intellectual Property Office Matters. The current Literature Listing was compiled end-May 2021. Key resources include Scopus, Digital Commons, publishers' RSS feeds, and serendipity! This article gives a selection of interesting references to whet your appetite - the full list of references can be found in the companion datafile. 相似文献