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Authentication is the act of confirming the truth of an attribute of a datum or entity. This might involve confirming the identity of a person, tracing the origins of an artefact, ensuring that a product is what it's packaging and labelling…

密码学与安全 · 计算机科学 2011-10-10 A. S. N. Chakravarthy , Penmetsa V. Krishna Raja , P. S. Avadhani

Authentication of smartphone users is important because a lot of sensitive data is stored in the smartphone and the smartphone is also used to access various cloud data and services. However, smartphones are easily stolen or co-opted by an…

密码学与安全 · 计算机科学 2017-09-01 Wei-Han Lee , Ruby B. Lee

Mobile phones are becoming increasingly advanced and the latest ones are equipped with many diverse and powerful sensors. These sensors can be used to study different position and orientation of the phone which can help smartphone…

计算机与社会 · 计算机科学 2018-02-14 Karthik R , Preetam Satapath , Srivatsa Patnaik , Saurabh Priyadarshi , Rajesh Kumar M

The large language based-model chatbot ChatGPT gained a lot of popularity since its launch and has been used in a wide range of situations. This research centers around a particular situation, when the ChatGPT is used to produce news that…

计算与语言 · 计算机科学 2023-10-26 Amanda Ferrari Iaquinta , Gustavo Voltani von Atzingen

We propose a privacy-preserving Naive Bayes classifier and apply it to the problem of private text classification. In this setting, a party (Alice) holds a text message, while another party (Bob) holds a classifier. At the end of the…

密码学与安全 · 计算机科学 2021-06-09 Amanda Resende , Davis Railsback , Rafael Dowsley , Anderson C. A. Nascimento , Diego F. Aranha

The improvement in Information Technology has encouraged the use of Igbo in the creation of text such as resources and news articles online. Text similarity is of great importance in any text-based applications. This paper presents a…

计算与语言 · 计算机科学 2020-08-05 Nkechi Ifeanyi-Reuben , Chidiebere Ugwu , Nwachukwu E. O

Authorship identification ascertains the authorship of texts whose origins remain undisclosed. That authorship identification techniques work as reliably as they do has been attributed to the fact that authorial style is properly captured…

计算与语言 · 计算机科学 2023-10-03 Haining Wang

Machine-translated text plays an important role in modern life by smoothing communication from various communities using different languages. However, unnatural translation may lead to misunderstanding, a detector is thus needed to avoid…

计算与语言 · 计算机科学 2019-04-25 Hoang-Quoc Nguyen-Son , Tran Phuong Thao , Seira Hidano , Shinsaku Kiyomoto

Authorship attribution refers to the task of automatically determining the author based on a given sample of text. It is a problem with a long history and has a wide range of application. Building author profiles using language models is…

计算与语言 · 计算机科学 2016-02-25 Zhenhao Ge , Yufang Sun

Short Message Service (SMS) spam is a serious problem in Vietnam because of the availability of very cheap pre-paid SMS packages. There are some systems to detect and filter spam messages for English, most of which use machine learning…

计算与语言 · 计算机科学 2017-05-12 Thai-Hoang Pham , Phuong Le-Hong

The problem of obfuscating the authorship of a text document has received little attention in the literature to date. Current approaches are ad-hoc and rely on assumptions about an adversary's auxiliary knowledge which makes it difficult to…

密码学与安全 · 计算机科学 2018-05-24 Natasha Fernandes , Mark Dras , Annabelle McIver

An improved email classification method based on Artificial Immune System is proposed in this paper to develop an immune based system by using the immune learning, immune memory in solving complex problems in spam detection. An optimized…

密码学与安全 · 计算机科学 2014-02-07 Ismaila Idris , Shafii Muhammad Abdulhamid

N-grams have been a common tool for information retrieval and machine learning applications for decades. In nearly all previous works, only a few values of $n$ are tested, with $n > 6$ being exceedingly rare. Larger values of $n$ are not…

密码学与安全 · 计算机科学 2019-08-02 Edward Raff , William Fleming , Richard Zak , Hyrum Anderson , Bill Finlayson , Charles Nicholas , Mark McLean

Static detection technologies based on signature-based approaches that are widely used in Android platform to detect malicious applications. It can accurately detect malware by extracting signatures from test data and then comparing the…

密码学与安全 · 计算机科学 2017-09-27 Sanya Chaba , Rahul Kumar , Rohan Pant , Mayank Dave

We demonstrate how the multitude of sensors on a smartphone can be used to construct a reliable hardware fingerprint of the phone. Such a fingerprint can be used to de-anonymize mobile devices as they connect to web sites, and as a second…

密码学与安全 · 计算机科学 2014-08-08 Hristo Bojinov , Yan Michalevsky , Gabi Nakibly , Dan Boneh

Stylometry, the science of inferring characteristics of the author from the characteristics of documents written by that author, is a problem with a long history and belongs to the core task of Text categorization that involves authorship…

计算与语言 · 计算机科学 2012-10-16 Tanmoy Chakraborty , Sivaji Bandyopadhyay

The widespread use of smartphones gives rise to new security and privacy concerns. Smartphone thefts account for the largest percentage of thefts in recent crime statistics. Using a victim's smartphone, the attacker can launch impersonation…

密码学与安全 · 计算机科学 2017-03-10 Wei-Han Lee , Ruby Lee

Cybercriminals have leveraged the popularity of a large user base available on Online Social Networks to spread spam campaigns by propagating phishing URLs, attaching malicious contents, etc. However, another kind of spam attacks using…

社会与信息网络 · 计算机科学 2018-02-13 Srishti Gupta , Abhinav Khattar , Arpit Gogia , Ponnurangam Kumaraguru , Tanmoy Chakraborty

Thousands of malicious applications targeting mobile devices, including the popular Android platform, are created every day. A large number of those applications are created by a small number of professional under-ground actors, however…

密码学与安全 · 计算机科学 2019-03-06 Hyunjae Kang , Jae-wook Jang , Aziz Mohaisen , Huy Kang Kim

Efficient evaluation of regular expressions (regex, for short) is crucial for text analysis, and n-gram indexes are fundamental to achieving fast regex evaluation performance. However, these indexes face scalability challenges because of…

数据库 · 计算机科学 2025-09-08 Ling Zhang , Shaleen Deep , Jignesh M. Patel , Karthikeyan Sankaralingam