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Candidate retrieval is a fundamental issue in recommendation system. Given user's recommendation request, relevant candidates need to be retrieved in realtime for subsequent ranking operations. Considering that the retrieval operation is…

Information Retrieval · Computer Science 2019-10-22 Zheng Liu , Yu Xing , Jianxun Lian , Defu Lian , Ziyao Li , Xing Xie

In industry, feature selection is a standard but necessary step to search for an optimal set of informative feature fields for efficient and effective training of deep Click-Through Rate (CTR) models. Most previous works measure the…

Information Retrieval · Computer Science 2022-09-07 Yi Guo , Zhaocheng Liu , Jianchao Tan , Chao Liao , Sen Yang , Lei Yuan , Dongying Kong , Zhi Chen , Ji Liu

Recent works on parameter-efficient transfer learning (PETL) show the potential to adapt a pre-trained Vision Transformer to downstream recognition tasks with only a few learnable parameters. However, since they usually insert new…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Taolin Zhang , Jiawang Bai , Zhihe Lu , Dongze Lian , Genping Wang , Xinchao Wang , Shu-Tao Xia

Many modern high-performing machine learning models such as GPT-3 primarily rely on scaling up models, e.g., transformer networks. Simultaneously, a parallel line of work aims to improve the model performance by augmenting an input instance…

Machine Learning · Computer Science 2022-10-07 Soumya Basu , Ankit Singh Rawat , Manzil Zaheer

During the recent years, correlation filters have shown dominant and spectacular results for visual object tracking. The types of the features that are employed in these family of trackers significantly affect the performance of visual…

Computer Vision and Pattern Recognition · Computer Science 2018-03-13 Erhan Gundogdu , A. Aydin Alatan

Trajectory analysis is not only about obtaining movement data, but it is also of paramount importance in understanding the pattern in which an object moves through space and time, as well as in predicting its next move. Due to the…

Machine Learning · Computer Science 2025-06-26 Chanuka Don Samarasinghage , Dhruv Gulabani

Scaling dense retrievers to larger large language model (LLM) backbones has been a dominant strategy for improving their retrieval effectiveness. However, this has substantial cost implications: larger backbones require more expensive…

Information Retrieval · Computer Science 2025-06-09 Hang Li , Xiao Wang , Bevan Koopman , Guido Zuccon

Given a query composed of a reference image and a relative caption, the Composed Image Retrieval goal is to retrieve images visually similar to the reference one that integrates the modifications expressed by the caption. Given that recent…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Alberto Baldrati , Marco Bertini , Tiberio Uricchio , Alberto del Bimbo

Prompt-based methods have achieved promising results in most few-shot text classification tasks. However, for readability assessment tasks, traditional prompt methods lackcrucial linguistic knowledge, which has already been proven to be…

Computation and Language · Computer Science 2024-04-11 Ziyang Wang , Sanwoo Lee , Hsiu-Yuan Huang , Yunfang Wu

With the decreasing cost of data collection, the space of variables or features that can be used to characterize a particular predictor of interest continues to grow exponentially. Therefore, identifying the most characterizing features…

Machine Learning · Computer Science 2021-01-26 Sali Rasoul , Sodiq Adewole , Alphonse Akakpo

Feature selection is a common step in many ranking, classification, or prediction tasks and serves many purposes. By removing redundant or noisy features, the accuracy of ranking or classification can be improved and the computational cost…

Information Retrieval · Computer Science 2022-05-10 Maurizio Ferrari Dacrema , Fabio Moroni , Riccardo Nembrini , Nicola Ferro , Guglielmo Faggioli , Paolo Cremonesi

Forward-backward selection is one of the most basic and commonly-used feature selection algorithms available. It is also general and conceptually applicable to many different types of data. In this paper, we propose a heuristic that…

Machine Learning · Computer Science 2017-05-31 Giorgos Borboudakis , Ioannis Tsamardinos

We propose a way to learn visual features that are compatible with previously computed ones even when they have different dimensions and are learned via different neural network architectures and loss functions. Compatible means that, if…

Computer Vision and Pattern Recognition · Computer Science 2021-01-07 Yantao Shen , Yuanjun Xiong , Wei Xia , Stefano Soatto

Instance retrieval requires one to search for images that contain a particular object within a large corpus. Recent studies show that using image features generated by pooling convolutional layer feature maps (CFMs) of a pretrained…

Computer Vision and Pattern Recognition · Computer Science 2016-06-23 Jiewei Cao , Lingqiao Liu , Peng Wang , Zi Huang , Chunhua Shen , Heng Tao Shen

A reciprocal recommendation problem is one where the goal of learning is not just to predict a user's preference towards a passive item (e.g., a book), but to recommend the targeted user on one side another user from the other side such…

Machine Learning · Computer Science 2018-06-05 Fabio Vitale , Nikos Parotsidis , Claudio Gentile

Predictor combination aims to improve a (target) predictor of a learning task based on the (reference) predictors of potentially relevant tasks, without having access to the internals of individual predictors. We present a new predictor…

Machine Learning · Computer Science 2020-07-17 Kwang In Kim , Christian Richardt , Hyung Jin Chang

CNNs have excelled at performing place recognition over time, particularly when the neural network is optimized for localization in the current environmental conditions. In this paper we investigate the concept of feature map filtering,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Stephen Hausler , Adam Jacobson , Michael Milford

Passage retrieval is a fundamental task in many information systems, such as web search and question answering, where both efficiency and effectiveness are critical concerns. In recent years, neural retrievers based on pre-trained language…

Information Retrieval · Computer Science 2024-03-21 Qian Dong , Yiding Liu , Qingyao Ai , Haitao Li , Shuaiqiang Wang , Yiqun Liu , Dawei Yin , Shaoping Ma

Quadratically constrained quadratic programs (QCQPs) are ubiquitous in optimization: Such problems arise in applications from operations research, power systems, signal processing, chemical engineering, and portfolio theory, among others.…

Optimization and Control · Mathematics 2026-03-31 Muge Dedeoglu , Buket Ozen , Burak Kocuk

Relevant and high-quality data are critical to successful development of machine learning applications. For machine learning applications on dynamic systems equipped with a large number of sensors, such as connected vehicles and robots, how…

Machine Learning · Computer Science 2021-08-31 Alp Sahin , Xiangrui Zeng