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The increasing prevalence of malicious Portable Document Format (PDF) files necessitates robust and comprehensive feature extraction techniques for effective detection and analysis. This work presents a unified framework that integrates…

密码学与安全 · 计算机科学 2026-01-21 Sharmila S P

A rapid growth of web documents due to heavy use of World Wide Web necessitates efficient techniques to efficiently classify the document on the web. It is thus produced High volumes of data per second with high diversity. Automatically…

计算与语言 · 计算机科学 2020-06-03 Alireza Saleh Sedghpour , Mohammad Reza Saleh Sedghpour

In this paper, we aim at learning simultaneously a discriminative dictionary and a robust projection matrix from noisy data. The joint learning, makes the learned projection and dictionary a better fit for each other, so a more accurate…

计算机视觉与模式识别 · 计算机科学 2016-12-07 Homa Foroughi , Nilanjan Ray , Hong Zhang

Domain generation algorithms (DGAs) are frequently employed by malware to generate domains used for connecting to command-and-control (C2) servers. Recent work in DGA detection leveraged deep learning architectures like convolutional neural…

密码学与安全 · 计算机科学 2019-01-29 Joewie J. Koh , Barton Rhodes

This paper introduces a fast algorithm for randomized computation of a low-rank Dynamic Mode Decomposition (DMD) of a matrix. Here we consider this matrix to represent the development of a spatial grid through time e.g. data from a static…

计算机视觉与模式识别 · 计算机科学 2016-04-12 N. Benjamin Erichson , Carl Donovan

Grammar-based compression is a popular and powerful approach to compressing repetitive texts but until recently its relatively poor time-space trade-offs during real-life construction made it impractical for truly massive datasets such as…

The continued evolution and diversity of malware constitutes a major threat in modern systems. It is well proven that security defenses currently available are ineffective to mitigate the skills and imagination of cyber-criminals…

密码学与安全 · 计算机科学 2019-04-02 Irina Baptista , Stavros Shiaeles , Nicholas Kolokotronis

Dictionary learning aims at seeking a dictionary under which the training data can be sparsely represented. Methods in the literature typically formulate the dictionary learning problem as an optimization w.r.t. two variables, i.e.,…

信号处理 · 电气工程与系统科学 2021-10-27 Cheng Cheng , Wei Dai

File reading is the basis for data sharing and scientific computing. However, manual programming for file reading is labour-intensive and time-consuming, as data formats are heterogeneous and complex. To address such an issue, this study…

软件工程 · 计算机科学 2021-10-12 Xinghua Cheng , Erjie Hu , Di Hu

In recent years, deep learning has shown performance breakthroughs in many applications, such as image detection, image segmentation, pose estimation, and speech recognition. However, this comes with a major concern: deep networks have been…

机器学习 · 计算机科学 2019-01-11 Felix Kreuk , Assi Barak , Shir Aviv-Reuven , Moran Baruch , Benny Pinkas , Joseph Keshet

Content based Document Classification is one of the biggest challenges in the context of free text mining. Current algorithms on document classifications mostly rely on cluster analysis based on bag-of-words approach. However that method is…

信息检索 · 计算机科学 2015-12-15 Koushiki Sarkar , Ritwika Law

This paper describes several improvements to a new method for signal decomposition that we recently formulated under the name of Differentiable Dictionary Search (DDS). The fundamental idea of DDS is to exploit a class of powerful deep…

音频与语音处理 · 电气工程与系统科学 2022-11-29 Lukáš Samuel Marták , Rainer Kelz , Gerhard Widmer

Dictionary learning is a cutting-edge area in imaging processing, that has recently led to state-of-the-art results in many signal processing tasks. The idea is to conduct a linear decomposition of a signal using a few atoms of a learned…

机器学习 · 统计学 2016-05-26 Simeng Qu , Xiao Wang

Recently, a diverse set of decoding and reranking procedures have been shown effective for LLM-based code generation. However, a comprehensive framework that links and experimentally compares these methods is missing. We address this by…

计算与语言 · 计算机科学 2024-10-17 Haau-Sing Li , Patrick Fernandes , Iryna Gurevych , André F. T. Martins

Structured documents analysis and recognition are essential for modern online on-boarding processes, and document localization is a crucial step to achieve reliable key information extraction. While deep-learning has become the standard…

计算机视觉与模式识别 · 计算机科学 2023-10-03 Anastasiia Kabeshova , Guillaume Betmont , Julien Lerouge , Evgeny Stepankevich , Alexis Bergès

In this paper, we address the problem of classifying documents available from the global network of (open access) repositories according to their type. We show that the metadata provided by repositories enabling us to distinguish research…

数字图书馆 · 计算机科学 2017-07-14 Aristotelis Charalampous , Petr Knoth

Signature and anomaly based techniques are the quintessential approaches to malware detection. However, these techniques have become increasingly ineffective as malware has become more sophisticated and complex. Researchers have therefore…

密码学与安全 · 计算机科学 2021-03-05 Dennis Dang , Fabio Di Troia , Mark Stamp

Segmenting an unordered text document into different sections is a very useful task in many text processing applications like multiple document summarization, question answering, etc. This paper proposes structuring of an unordered text…

We initiate a study of locally decodable codes with randomized encoding. Standard locally decodable codes are error correcting codes with a deterministic encoding function and a randomized decoding function, such that any desired message…

信息论 · 计算机科学 2020-01-14 Kuan Cheng , Xin Li , Yu Zheng

We present algorithms for topic modeling based on the geometry of cross-document word-frequency patterns. This perspective gains significance under the so called separability condition. This is a condition on existence of novel-words that…

机器学习 · 统计学 2013-03-19 Weicong Ding , Mohammad H. Rohban , Prakash Ishwar , Venkatesh Saligrama