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Tuning language models for dialogue generation has been a prevalent paradigm for building capable dialogue agents. Yet, traditional tuning narrowly views dialogue generation as resembling other language generation tasks, ignoring the role…

Computation and Language · Computer Science 2024-05-31 Jian Wang , Chak Tou Leong , Jiashuo Wang , Dongding Lin , Wenjie Li , Xiao-Yong Wei

We present a methodology to systematically test conversational recommender systems with regards to conversational breakdowns. It involves examining conversations generated between the system and simulated users for a set of pre-defined…

Information Retrieval · Computer Science 2024-05-24 Nolwenn Bernard , Krisztian Balog

Face forgery detection faces a critical challenge: a persistent gap between offline benchmarks and real-world efficacy,which we attribute to the ecological invalidity of training data.This work introduces Agent4FaceForgery to address two…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Yingxin Lai , Zitong Yu , Jun Wang , Linlin Shen , Yong Xu , Xiaochun Cao

Financial fraud is an issue with far reaching consequences in the finance industry, government, corporate sectors, and for ordinary consumers. Increasing dependence on new technologies such as cloud and mobile computing in recent years has…

Cryptography and Security · Computer Science 2015-10-27 J. West , Maumita Bhattacharya , R. Islam

In the field of fraud detection, the availability of comprehensive and privacy-compliant datasets is crucial for advancing machine learning research and developing effective anti-fraud systems. Traditional datasets often focus on…

Machine Learning · Computer Science 2024-04-24 Phoebe Jing , Yijing Gao , Xianlong Zeng

Identity theft is a major problem for credit lenders when there's not enough data to corroborate a customer's identity. Among super-apps large digital platforms that encompass many different services this problem is even more relevant;…

Identity authentication is the process of verifying one's identity. There are several identity authentication methods, among which biometric authentication is of utmost importance. Facial recognition is a sort of biometric authentication…

Computer Vision and Pattern Recognition · Computer Science 2022-12-15 Matineh Pooshideh

This paper presents a dataset collected from natural dialogs which enables to test the ability of dialog systems to learn new facts from user utterances throughout the dialog. This interactive learning will help with one of the most…

Computation and Language · Computer Science 2016-05-17 Miroslav Vodolán , Filip Jurčíček

With the proliferation of various online and mobile payment systems, credit card fraud has emerged as a significant threat to financial security. This study focuses on innovative applications of the latest Transformer models for more robust…

Machine Learning · Computer Science 2024-11-13 Chang Yu , Yongshun Xu , Jin Cao , Ye Zhang , Yinxin Jin , Mengran Zhu

With the increasing prevalence of fraudulent Android applications such as fake and malicious applications, it is crucial to detect them with high accuracy and adaptability. We present AgentDroid, a novel tool for Android fraudulent…

Software Engineering · Computer Science 2025-10-09 Ruwei Pan , Hongyu Zhang , Zhonghao Jiang , Ran Hou

Efficient patient-doctor interaction is among the key factors for a successful disease diagnosis. During the conversation, the doctor could query complementary diagnostic information, such as the patient's symptoms, previous surgery, and…

Computation and Language · Computer Science 2024-10-08 Xueshen Li , Xinlong Hou , Nirupama Ravi , Ziyi Huang , Yu Gan

Remote user verification in Internet-based applications is becoming increasingly important nowadays. A popular scenario for it consists of submitting a picture of the user's Identity Document (ID) to a service platform, authenticating its…

Cryptography and Security · Computer Science 2025-08-29 Javier Muñoz-Haro , Ruben Tolosana , Julian Fierrez , Ruben Vera-Rodriguez , Aythami Morales

Factuality is a crucial requirement in information seeking dialogue: the system should respond to the user's queries so that the responses are meaningful and aligned with the knowledge provided to the system. However, most modern large…

Computation and Language · Computer Science 2024-03-05 Evgeniia Razumovskaia , Ivan Vulić , Pavle Marković , Tomasz Cichy , Qian Zheng , Tsung-Hsien Wen , Paweł Budzianowski

In recent years, Large Language Models (LLMs) have shown great capability in processing graph tasks such as fraud detection. However, most existing methods rely heavily on rich text attributes, which poses difficulties for this domain due…

Artificial Intelligence · Computer Science 2026-05-28 Zhixing Zuo , Huilin He , Jiasheng Wu , Dawei Cheng

Phone scams pose a significant threat to individuals and communities, causing substantial financial losses and emotional distress. Despite ongoing efforts to combat these scams, scammers continue to adapt and refine their tactics, making it…

Cryptography and Security · Computer Science 2024-10-18 Zitong Shen , Kangzhong Wang , Youqian Zhang , Grace Ngai , Eugene Y. Fu

Credit card fraud has emerged as major problem in the electronic payment sector. In this survey, we study data-driven credit card fraud detection particularities and several machine learning methods to address each of its intricate…

Machine Learning · Computer Science 2020-10-14 Yvan Lucas , Johannes Jurgovsky

Personality recognition is useful for enhancing robots' ability to tailor user-adaptive responses, thus fostering rich human-robot interactions. One of the challenges in this task is a limited number of speakers in existing dialogue…

Computation and Language · Computer Science 2024-03-11 Yahui Fu , Haiyue Song , Tianyu Zhao , Tatsuya Kawahara

Current large language models (LLMs) excel at general NLP tasks but often lack domain specific precision in professional settings. Building a high quality domain specific multi turn dialogue dataset is essential for developing specialized…

Artificial Intelligence · Computer Science 2025-08-05 Yuanyuan Liang , Xiaoman Wang , Tingyu Xie , Lei Pan

The article proposes an expert system for detection, and subsequent investigation, of groups of collaborating automobile insurance fraudsters. The system is described and examined in great detail, several technical difficulties in detecting…

Artificial Intelligence · Computer Science 2011-04-21 Lovro Šubelj , Štefan Furlan , Marko Bajec

Evaluating Retrieval-Augmented Generation (RAG) systems using static multi-turn datasets fails to capture the dynamic nature of real-world dialogues. Existing evaluation methods rely on predefined datasets, which restrict them to static,…

Information Retrieval · Computer Science 2026-04-21 Lorenz Brehme , Benedikt Dornauer , Jan-Henrik Böttcher , Klaus Schmid , Mircea-Cristian Racasan , Ruth Breu