Ongoing research
Projects led by Carlos Diego, his research groups and undergraduate and graduate students.
Integrity, Bias, Synthetic Data & Provenance
Toward a Data-Centric Trust Pipeline for Trustworthy AI. Investigates how integrity, bias, synthetic data generation and provenance form an interdependent ecosystem for building trustworthy AI.
Objective
Propose the Data-Centric Trust Pipeline as a unified model to raise transparency, interpretability and accountability across the data lifecycle.
Problem lines
- Problem. How to ensure consistency, contextualization and completeness when datasets lack metadata and standardization?
Rationale. Integrity failures compromise reproducibility and auditability, amplifying downstream errors. - Problem. Which approaches mitigate disparities across demographic groups when fairness metrics are incomplete?
Rationale. Studies show 20–35% error variation across groups: fairness demands continuous treatment. - Problem. How to validate the authenticity and usage limits of synthetic data, which may reproduce structural bias?
Rationale. Without traceability, synthetic data distorts interpretation in sensitive analyses. - Problem. How do provenance systems evolve from passive repositories into interpretive records of decisions?
Rationale. Provenance is essential for explainability and auditing in AI pipelines.
Refs.: Schwabe et al. (2024) · Buolamwini & Gebru (2018) · Hameed et al. (2024) · Ahmed et al. (2023) · Longpre et al. (2024).
C2PF — Architecture-Aware Capacity Planning
An Architecture-Aware Conceptual Framework for Cloud Capacity Planning. Integrates architectural characteristics, workload semantics and operational objectives (SLO, PLO, RLO) into a unified conceptual model.
Objective
Propose C2PF as an architecture-aware framework capable of producing proactive, explainable and repeatable capacity decisions.
Problem lines
- Problem. How to move past reactive models based only on historical metrics, which miss variation and concurrency?
Rationale. The absence of architectural context leads to inaccurate forecasts and overprovisioning. - Problem. How to combine architectural components, workload classification and performance objectives?
Rationale. There are semantic and cognitive gaps between architects, operators and planners. - Problem. How to quantify the effects of patterns (microservices, event-driven, serverless) on capacity consumption?
Rationale. Architectural factors can add up to 30% overhead, altering scalability and latency.
Refs.: Pereira (2023, 2025) · Richards & Ford (2020) · Lichtenthäler et al. (2023) · Gunther (2010).
The Economics of the Generative AI Ecosystem
Capital Intensity, Market Dynamics, and Competitive Differentiation Across the Value Chain. Analyzes how the layers — semiconductors, cloud, models, inference, platforms and applications — organize competition, investment and value capture.
Objective
Propose a conceptual model of the generative-AI value chain and evaluate hypotheses on capital intensity, infrastructure concentration, capability diffusion and productivity impacts.
Problem lines
- Economic structure and capital intensity — how the distribution of capital across layers shapes competition.
- Infrastructure concentration — the extent to which supply shows structural concentration.
- Capability diffusion — how quickly frontier capabilities diffuse.
- Application entry barriers — how APIs and platforms influence development.
- Productivity impacts — evidence of gains in knowledge work.
Refs.: LeCun, Bengio & Hinton (2015) · Kaplan et al. (2020) · Hoffmann et al. (2022) · Brynjolfsson, Li & Raymond (2023).
Optimized Scheduling for Kubernetes
A systematic literature review. Critically analyzes optimized scheduling algorithms for Kubernetes, focusing on applicability, benefits and challenges in general computing, AI and edge.
Problem lines
- Problem. How do optimized algorithms behave in production compared with the experimental tests in the literature?
Rationale. Most studies occur in controlled environments; there is a gap on practical applicability. - Problem. How do multi-criteria algorithms improve allocation in heterogeneous clusters (CPU/GPU, edge/cloud)?
Rationale. The combined effectiveness of latency, GPU and energy is still uncertain. - Problem. Which ML models are most effective at forecasting demand and adapting the scheduler?
Rationale. Systematic comparisons of QoS and cost-benefit are lacking.
Refs.: Ahmed et al. (2021) · Harichane et al. (2022) · Carvalho & Macedo (2023) · Menouer (2021).