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Nowadays, success of financial organizations heavily depends on their ability to process digital traces generated by their clients, e.g., transaction histories, gathered from various sources to improve user modeling pipelines. As…

The advances and successes in deep learning in recent years have led to considerable efforts and investments into its widespread ubiquitous adoption for a wide variety of applications, ranging from personal assistants and intelligent…

Machine Learning · Computer Science 2020-10-01 Andrew Hryniowski , Xiao Yu Wang , Alexander Wong

Traditional click-through rate (CTR) prediction models convert the tabular data into one-hot vectors and leverage the collaborative relations among features for inferring the user's preference over items. This modeling paradigm discards…

Information Retrieval · Computer Science 2023-12-19 Xiangyang Li , Bo Chen , Lu Hou , Ruiming Tang

Accurate evaluation of conversational retrieval is pivotal for advancing Retrieval-Augmented Generation (RAG) systems. However, existing conversational retrieval benchmarks suffer from costly, sparse human annotation or rigid, unnatural…

Computation and Language · Computer Science 2026-05-21 Junhao Ruan , Abudukeyumu Abudula , Bei Li , Yongjing Yin , Xinyu Liu , Kechen Jiao , Xin Chen , Jingang Wang , Xunliang Cai , Tong Xiao , Jingbo Zhu

In this work, we introduce the notion of Context-Based Prediction Models. A Context-Based Prediction Model determines the probability of a user's action (such as a click or a conversion) solely by relying on user and contextual features,…

Information Retrieval · Computer Science 2023-08-03 Jan Hartman , Assaf Klein , Davorin Kopič , Natalia Silberstein

Cumulative Prospect Theory (CPT) is a modeling tool widely used in behavioral economics and cognitive psychology that captures subjective decision making of individuals under risk or uncertainty. In this paper, we propose a dynamic pricing…

Computers and Society · Computer Science 2019-12-02 Yue Guan , Anuradha M. Annaswamy , H. Eric Tseng

The e-commerce systems are being tackled from commerce behavior and internet technologies. Therefore, trust aspect between buyer-seller transactions is a potential element which needs to be addressed in competitive e-commerce industry. The…

Artificial Intelligence · Computer Science 2024-06-21 Muhammad Yasir Siddiqui , Alam Gir

The recent explosion in work on neural topic modeling has been criticized for optimizing automated topic evaluation metrics at the expense of actual meaningful topic identification. But human annotation remains expensive and time-consuming.…

Computation and Language · Computer Science 2023-05-25 Hamed Rahimi , Jacob Louis Hoover , David Mimno , Hubert Naacke , Camelia Constantin , Bernd Amann

The conversion rate (CVR) is a crucial metric for evaluating the effectiveness of platforms, as it quantifies the alignment of content with audience preferences. However, the limited nature of customers' conversion actions presents a…

Information Retrieval · Computer Science 2026-05-08 Guohao Cai , Jun Yuan , Zhenhua Dong

Developing effective and efficient recommendation methods is very challenging for modern e-commerce platforms. Generally speaking, two essential modules named "Click-Through Rate Prediction" (\textit{CTR}) and "Conversion Rate Prediction"…

Machine Learning · Computer Science 2018-11-20 Hong Wen , Jing Zhang , Quan Lin , Keping Yang , Pipei Huang

Handling long-range dependencies in neural architectures has remained a persistent challenge due to computational limitations and inefficient contextual retention mechanisms. Tensorial operations have provided a foundation for restructuring…

Computation and Language · Computer Science 2025-08-11 Larin Tonix , Morgana Baskerville , Nathaniel Stourton , Ophelia Tattershall

In Sequential Recommendation Systems (SRecsys), traditional training approaches that rely on Cross-Entropy (CE) loss often prioritize accuracy but fail to align well with user satisfaction metrics. CE loss focuses on maximizing the…

Information Retrieval · Computer Science 2025-02-21 Chen Wang , Fangxin Wang , Ruocheng Guo , Yueqing Liang , Philip S. Yu

This research designs a unified architecture of CTR prediction benchmark (Bench-CTR) platform that offers flexible interfaces with datasets and components of a wide range of CTR prediction models. Moreover, we construct a comprehensive…

Information Retrieval · Computer Science 2025-12-02 Shan Gao , Yanwu Yang

Given a string $P$ of length $m$, a longer string $T$ of length $n>m$, and two integers $l\geq 0$ and $r\geq 0$, the context of $P$ in $T$ is the set of all string pairs $(L,R)$, with $|L|=l$ and $|R|=r$, such that the string $LPR$ occurs…

Data Structures and Algorithms · Computer Science 2025-06-24 Ling Li , Daniel Gibney , Sharma V. Thankachan , Solon P. Pissis , Grigorios Loukides

Despite the recent success of automatic metrics for assessing translation quality, their application in evaluating the quality of machine-translated chats has been limited. Unlike more structured texts like news, chat conversations are…

Computation and Language · Computer Science 2024-03-14 Sweta Agrawal , Amin Farajian , Patrick Fernandes , Ricardo Rei , André F. T. Martins

Monte-Carlo Tree Search (MCTS) is one of the most-widely used methods for planning, and has powered many recent advances in artificial intelligence. In MCTS, one typically performs computations (i.e., simulations) to collect statistics…

Artificial Intelligence · Computer Science 2020-11-20 Eren Sezener , Peter Dayan

Trust-based recommender systems improve rating prediction with respect to Collaborative Filtering by leveraging the additional information provided by a trust network among users to deal with the cold start problem. However, they are…

Information Retrieval · Computer Science 2019-09-05 Liliana Ardissono , Noemi Mauro

In electronic marketplaces, after each transaction buyers will rate the products provided by the sellers. To decide the most trustworthy sellers to transact with, buyers rely on trust models to leverage these ratings to evaluate the…

Social and Information Networks · Computer Science 2013-06-24 Lizi Zhang

Conversational Recommender Systems (CRS) provide personalized services through multi-turn interactions, yet most existing methods overlook users' heterogeneous decision-making styles and knowledge levels, which constrains both accuracy and…

Information Retrieval · Computer Science 2025-09-10 Yaying Luo , Hui Fang , Zhu Sun

Mobile Crowd-Sensing (MCS) has appeared as a prospective solution for large-scale data collection, leveraging built-in sensors and social applications in mobile devices that enables a variety of Internet of Things (IoT) services. However,…

Networking and Internet Architecture · Computer Science 2019-04-05 Nguyen Binh Truong , Gyu Myoung Lee , Tai-Won Um , Michael Mackay