18 citations · 18 across the 7 of their papers we have counts for
10 papers
Providing a hybrid cryptography algorithm for lightweight authentication protocol in RFID with urban traffic usage case
V. Chegeni, H. Haj Seyyed javadi, M. R Moazami Goudarzi +1
Today, the Internet of Things (IoT) is one of the emerging technologies that enable the connection and transfer of information through communication networks. The main idea of the…
Lightweight Key-Dependent Dynamic S-Boxes based on Hyperelliptic Curve for IoT Devices
Parvaneh Asghari, Seyyed Hamid Haj Seyyed Javadi
Security is one of the main issues in Internet of Things (IoT). Encryption plays a curtail role in making these systems secure. Substitution Box (S-Box) has an effective impact in…
A novel key pre-distribution scheme based on -PBIBD combinatorial design in the resource-constrained IoT network
Akbar Morshed Aski, Hamid Haj Seyyed Javadi
In a resource-constrained IoT network, end nodes like WSN, RFID, and embedded systems are used which have memory, processing, and energy limitations. One of the key distribution so…
An Instability in Variational Inference for Topic Models
Behrooz Ghorbani, Hamid Javadi, Andrea Montanari
Topic models are Bayesian models that are frequently used to capture the latent structure of certain corpora of documents or images. Each data element in such a corpus (for instanc…
Non-negative Matrix Factorization via Archetypal Analysis
Hamid Javadi, Andrea Montanari
Given a collection of data points, non-negative matrix factorization (NMF) suggests to express them as convex combinations of a small set of `archetypes' with non-negative entries.…
A Statistical Model for Motifs Detection
Hamid Javadi, Andrea Montanari
We consider a statistical model for the problem of finding subgraphs with specified topology in an otherwise random graph. This task plays an important role in the analysis of soci…
On a generalization of McCoy Rings
Mohammad Vahdani Mehrabadi, Shervin Sahebi, Hamid H. S. Javadi
We introduce Central McCoy rings, which are a generalization of McCoy rings and investigate their properties. For a ring R, we prove that R is right Central McCoy if and only if th…
On a generalization of NC-McCoy Rings
Mohammad Vahdani Mehrabadi, Shervin Sahebi, Hamid H. S. Javadi
In the present paper we concentrate on a natural generalization of NC-McCoy rings that is called J-McCoy and investigate their properties. We prove that local rings are J-McCoy. Al…
On A Generalization of Weak Armendariz Rings
Mahboubeh Sanaei, Shervin Sahebi, Hamid H. S. Javadi
We introduce the notion of J-Armendariz rings, which are a generalization of weak Armendariz rings and investigate their properties. We show that any local ring is J-Armendariz, an…
On Central Skew Armendariz rings
Mahboubeh Sanaei, Shervin Sahebi, Hamid H. S. Javadi
For a ring endomirphism, we introduce the central skew Armendariz rings, which are a generalization of skew Armendariz rings and central Armendariz rings, and investigate their pro…