VLDB 2026 Research / reviewers in the wild / expert
Mohammadhossein Ghahramani
dblp:204/6420 · also Mohammad Hossein Ghahramani
· DBLP profile ↗
9ranked-venue papers
8as first author
7since 2021 · last 2026
0000-0002-2743-359XORCID · verified
Domains — the database's venue-derived domains; a paper can count in several
Human-computer interaction and ubiquitous computing · 4 · 3 first-author · 4 since 2021Computer networks · 3 · 3 first-author · 3 since 2021Applied, interdisciplinary, general and emerging computing · 3 · 3 first-author · 1 since 2021
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2026 | A Multiobjective Optimization Approach for Feature Selection in Gentelligent SystemsabstractThe integration of advanced technologies, such as Artificial Intelligence (AI), into manufacturing processes is attracting significant attention, paving the way for the development of intelligent systems that enhance efficiency and automation. This paper uses the term ”Gentelligent system” to refer to systems that incorporate inherent component information (akin to genes in bioinformatics—where manufacturing operations are likened to chromosomes in this study) and automated mechanisms. By implementing reliable fault detection methods, manufacturers can achieve several benefits, including improved product quality, increased yield, and reduced production costs. To support these objectives, we propose a hybrid framework with a dominance-based multi-objective evolutionary algorithm. This mechanism enables simultaneous optimization of feature selection and classification performance by exploring Pareto-optimal solutions in a single run. This solution helps monitor various manufacturing operations, addressing a range of conflicting objectives that need to be minimized together. Manufacturers can leverage such predictive methods and better adapt to emerging trends. To strengthen the validation of our model, we incorporate two real-world datasets from different industrial domains. The results on both datasets demonstrate the generalizability and effectiveness of our approach. Mohammadhossein Ghahramani, Yan Qiao 0004, MengChu Zhou |
IEEE Internet Things J. | 1 |
| 2026 | CLAIRE: Compressed Latent Autoencoder for Industrial Representation and Evaluation - A Deep Learning Framework for Smart ManufacturingabstractAccurate fault detection in high-dimensional industrial environments remains a major challenge due to the inherent complexity, noise, and redundancy in sensor data. This article introduces compressed latent autoencoder for industrial representation and evaluation (CLAIRE), that is, a hybrid end-to-end learning framework that integrates unsupervised deep representation learning with supervised classification for intelligent quality control in smart manufacturing systems. It employs an optimized deep autoencoder to transform raw input into a compact latent space, effectively capturing the intrinsic data structure while suppressing irrelevant or noisy features. The learned representations are then fed into a downstream classifier to perform binary fault prediction. Experimental results on a high-dimensional dataset demonstrate that CLAIRE significantly outperforms conventional classifiers trained directly on raw features. Moreover, it incorporates a post hoc phase, using a game-theory-based interpretability technique, to analyze the latent space and identify the most informative input features contributing to fault predictions. The proposed framework highlights the potential of integrating explainable artificial intelligence with feature-aware regularization for robust fault detection. The modular and interpretable nature of the proposed framework makes it highly adaptable, offering promising applications in other domains characterized by complex, high-dimensional data, e.g., healthcare, finance, and environmental monitoring. Mohammadhossein Ghahramani, MengChu Zhou |
IEEE Trans. Syst. Man Cybern. Syst. | 1 |
| 2025 | Decoding the Black Box: Shedding Light on Manufacturing Processes with Explainable AIabstractAccurate fault detection in industrial environments with high-dimensional sensor data presents significant challenges. This paper presents an explainable AI framework that combines unsupervised deep representation learning with supervised classification for enhanced quality control in smart manufacturing systems. It utilizes a finely tuned deep autoencoder to convert raw data into a compressed latent representation, effectively capturing the underlying structure while removing irrelevant or noisy features. These representations are then used by a downstream classifier to predict faults. Experimental results on a high-dimensional dataset show that the proposed solution outperforms traditional classifiers that process raw features directly. In addition, the framework incorporates an interpretability phase. It adopts a game-theory-based technique to analyze latent space and identify the most influential features that contribute to accurate faulty predictions. Mohammadhossein Ghahramani, MengChu Zhou |
SMC | 1 |
| 2025 | Workload Balancing for Photolithography Machines in Semiconductor Manufacturing via Estimation of Distribution Algorithm Integrating Kmeans ClusteringabstractThis work focuses on the scheduling of a photolithography area with multiple machine groups and each one consists of a predetermined number of photolithography machines (PMs). PMs belonging to the same machine group should have identical processing capacities. Additionally, all PMs are designated with downward processing compatibility. This means that the wafers requiring relatively low pattern precision can be processed by the PMs used to deal with high pattern precision. After executing a photolithography process, a circuit pattern is transferred from an auxiliary resource called a reticle onto the wafer surface. Moreover, when processing wafers with different reticle and processing environment requirements, the machine setup is necessary. With those complex processing requirements, the objective is to minimize the difference between the longest and shortest working time of PMs so as to balance the workloads among all PMs. To do so, a mixed-integer linear programming model is built and then solved by using CPLEX for the small-sized problem. For medium-and large-sized problems, a designed estimation of distribution algorithm integrating a Kmeans clustering is constructed to improve the productivity of the photolithography area. Comparison results show that the proposed method outperforms the compared algorithms regardless of problem sizes. LiangChao Chen, Yan Qiao 0004, Mohammadhossein Ghahramani, Yonghua Shao, Sijun Zhan |
IEEE Trans. Syst. Man Cybern. Syst. | 4 |
| 2022 | IoT-Based Route Recommendation for an Intelligent Waste Management SystemabstractThe Internet of Things (IoT) is a paradigm characterized by a network of embedded sensors and services. These sensors are incorporated to collect various information, track physical conditions, e.g., waste bins’ status, and exchange data with different centralized platforms. The need for such sensors is increasing; however, the proliferation of technologies comes with various challenges. For example, how can IoT and its associated data be used to enhance waste management? In smart cities, an efficient waste management system is crucial. Artificial intelligence (AI) and IoT-enabled approaches can empower cities to manage the waste collection. This work proposes an intelligent approach to route recommendation in an IoT-enabled waste management system given spatial constraints. It performs a thorough analysis based on AI-based methods and compare their corresponding results. Our solution is based on a multiple-level decision-making process in which bins’ status and coordinates are taken into account to address the routing problem. Such AI-based models can help engineers design a sustainable infrastructure system. Mohammadhossein Ghahramani, MengChu Zhou, Anna Mölter, Francesco Pilla |
IEEE Internet Things J. | 1 |
| 2022 | Spatiotemporal Analysis of Mobile Phone Network Based on Self-Organizing Feature MapabstractSpatiotemporal analysis ranges from simple univariate descriptive statistics to more complex multivariate analyses. Such an analysis can be used to explore spatial and temporal patterns in different domains, i.e., spatial and temporal information of subscribers in Internet of Things networks. Most spatial and temporal analysis techniques are based on conventional quantitative and traditional data mining approaches, such as the$k$-means algorithm. Clustering approaches based on artificial neural networks can be more efficient since they can reveal nonlinear patterns. Hence, in this work, we tailor an AI-based spatiotemporal unsupervised model such that the underlying pattern structure of a mobile phone network can be revealed, relative similarity among interactions extracted, and the associated patterns analyzed. The proposed approach is based on an optimized self-organizing feature map. It deals with high-dimensionality concerns and preserves inherent data structures. By identifying the spatial and temporal associations, decision makers can explore dominant interactions that can be used for resource optimization in network planning, content distribution, and urban planning. Mohammadhossein Ghahramani, MengChu Zhou, Yan Qiao 0004 |
IEEE Internet Things J. | 1 |
| 2022 | Intelligent Geodemographic Clustering Based on Neural Network and Particle Swarm OptimizationabstractMost of the techniques involved in customer clustering and segmentation are based on conventional methods of quantitative analysis or traditional data mining approaches such as the K-Means algorithm. However, clustering approaches based on artificial neural networks (ANNs), evolutionary algorithms, and fuzzy methods can be more efficient since they can reveal nonlinear patterns. They also seem to be more robust in coping with noise-related issues and relevant noise handling operations. They do not make any statistical distributional assumptions regarding the nature of the data. In this article, we develop a hybrid approach based on ANNs and swarm intelligence to reveal the underlying pattern structure of customers of an insurance company in the Republic of Ireland. This model is tailored to the scope of segmenting administrative districts, or “small areas,” given policyholders’ spatial characteristics. To that end, the geospatial features of customers are taken into account. Geodemographically speaking, by implementing such a hybrid model, the relative similarity among spatial objects (small areas in this work) are preserved. In this way, the similarity of each small area to all other small areas is characterized. Consequently, the pattern of customers is analyzed using an optimal and intelligent solution. We can also visualize the results of this study. Mohammadhossein Ghahramani, Adrian O'Hagan, MengChu Zhou, James Sweeney |
IEEE Trans. Syst. Man Cybern. Syst. | 1 |
| 2019 | Mobile Phone Data Analysis: A Spatial Exploration Toward Hotspot DetectionabstractThe percentage of processed large-scale heterogeneous data is exploding and technology is the most obvious reason for the big data issue. Nowadays, the results of data expansion are showing up in different fields. The users' contextual data are valuable in engineering and business domains, e.g., transportation, location-based services, and advertisement industry. Take mobile phones as an example. There are billions of subscriptions worldwide and sensor devices are digitizing people interactions. The data volume generated by mobile phones and the need to make better, fact-based, and real-time decisions, are the challenges facing researchers. Recently, new technologies based on cloud computing have emerged to process and analyze a large volume of data. We have utilized such technologies for the analysis of call detail records with the collaboration with a telecommunications company. We present an exploratory spatial data analysis algorithm and its analysis results. To prioritize different areas, detecting hotspots in a fast and accurate way is our objective. The findings of this research work can be helpful for urban planning and development as well as telecommunication infrastructure upgrading. Mohammadhossein Ghahramani, MengChu Zhou, Chi Tin Hon |
IEEE Trans Autom. Sci. Eng. | 1 |
| 2019 | Extracting Significant Mobile Phone Interaction Patterns Based on Community StructuresabstractMobile phones have emerged as an essential part of people's lives. The data produced from them can be utilized to derive the spatio-temporal information of their users' whereabouts. We can obtain a rich data set of human activities, interactions, social relationships, and mobility. Hence, it has been possible to explore these information sources with applications ranging from disaster management to disease epidemiology. In this paper, we have focused on the use of call detail records to explore and interpret patterns embedded in interaction flows of people through their mobile phone calls. To do so, we consider the geographical context of subscribers/celltowers to discover structures of spatio-temporal interactions and communities' patterns in Macau. We have explored the inter and intra-polygon interaction flows. The results suggest that subscribers tend to communicate within a spatial-proximity community. In order to delineate relatively contiguous objects with similar attribute values, we have implemented an efficient hierarchical clustering approach. By identifying key objects and their close associates and exploring their communication patterns, we can detect shared interests and dominant interactions that influence societal patterns. Such insight is useful for resource optimization in network planning, content distribution, and urban planning. Mohammadhossein Ghahramani, MengChu Zhou, Chi Tin Hon |
IEEE Trans. Intell. Transp. Syst. | 1 |