Social Sciences Challenges
Explore social sciences challenges on Ewance to apply rigorous thinking to real-world problems. Work on research-driven briefs across psychology, sociology, policy, and communication.
Most Popular
- CodeIntermediateNew
Design Safe Navigation Behavior for a Hospital Delivery Robot
You receive a dataset of 200 anonymized hospital corridor traces (people positions over time from the robot's LIDAR) plus the current planner's parameters. Design a policy that …
- Human Aware Navigation
- Ros2
- Motion Planning
Human-Robot Interaction - CodeIntermediateNew
Map a Climate-Policy Corpus to Linked Open Data
You receive 12,000 policy PDFs and a benchmark of 200 documents with manually linked entities (places, organizations, policies). Build a pipeline that runs NER, candidate-genera…
- Entity Linking
- Linked Open Data
- Wikidata
Knowledge Graphs and Semantic Web - CodeIntermediateNew
Build a Federated Learning Prototype Across Two Hospitals
Simulate two sites with non-IID data splits (one site skews older, the other younger). Implement FedAvg using Flower (or PySyft). Run for at least 50 communication rounds; repor…
- Federated Learning
- Fedavg
- Secure Aggregation
Privacy-Preserving Machine Learning - AnalysisIntermediateNew
Model Patient Pathways with a Hidden Markov Model
You receive de-identified monthly summaries for 8,000 diabetic patients, each row coding the count of primary-care visits, specialist visits, ER visits, new medications, and HbA…
- Hidden Markov Models
- Em Algorithm
- Time Series Modeling
Probabilistic Graphical Models Practice your coursework on real scenarios.
Every challenge is shaped from real-world context — not generic exercises. The work mirrors what your degree prepares you for.
Why Ewance
- AnalysisIntermediateNew
MCMC for Conversion-Funnel A/B Testing at a Marketplace
You receive 6 weeks of per-visitor funnel data (visit, sign-up, trial start, trial-to-paid conversion) split by variant and by acquisition channel (organic, paid social, paid se…
- Mcmc
- Bayesian Hierarchical Models
- A/B Testing
Probabilistic Machine Learning - ResearchIntermediateNew
Policy-Gradient Trading Agent on Historical Data
You receive 5 years of daily OHLCV (Open/High/Low/Close/Volume) data for 5 large-cap stocks. Build an episodic environment where each episode is one calendar year and the agent'…
- Policy Gradients
- Reinforce
- Rl Evaluation
Reinforcement Learning - CodeIntermediateNew
Actor-Critic for Energy-Storage Dispatch
You receive 3 years of hourly day-ahead price data and a Python simulator that models state of charge, round-trip efficiency, and a 1-day price forecast with documented uncertai…
- Actor Critic
- A2c
- Deep Rl
Reinforcement Learning - AnalysisIntermediateNew
Exploration Strategies for a Recommendation Bandit
You receive 60 days of anonymized impression/click logs covering around 200 content items and user features (cohort, listening history bucket). Build a contextual-bandit simulat…
- Contextual Bandits
- Thompson Sampling
- Ucb
Reinforcement Learning - Browse challenges
Explore role
Product Manager
Ship product that solves real user problems. Combine user research, prototyping, and stakeholder alignment to turn ambiguous briefs into measurable wins — the role at the centre of modern software teams.
- ResearchIntermediateNew
Red-Team Evaluation of a Refusal Policy
You receive the lab's written refusal policy (version 2.3) and a starter set of 60 red-team prompts (10 per category). Extend the set to 240 prompts (40 per category) using docu…
- Red Team Operations
- Refusal Policy
- Alignment Evaluation
Machine Learning from Human Preferences (RLHF and Alignment) - ResearchIntermediateNew
Sim-to-Real Domain Randomization for a Mobile Robot
You receive an Isaac Sim navigation environment, a baseline trained policy, a 50-episode real-bench test set (recorded sensor streams + ground truth) for offline policy evaluati…
- Domain Randomization
- Sim To Real
- Robot Navigation
Robot Learning - ResearchIntermediateNew
Reward Shaping for a Quadruped Locomotion Policy
You receive a quadruped locomotion environment (Isaac Lab or pybullet-quadruped), the previous reward function (5 terms), and a budget of 6 training runs. Design 4 reward varian…
- Reward Shaping
- Ppo
- Locomotion
Robot Learning - ResearchIntermediateNew
Train a Reinforcement-Learning Locomotion Policy for a Quadruped
You receive a configured Isaac Lab environment for the quadruped, a baseline PPO trainer, and a set of 8 trip-hazard / slip stress scenarios. Train the policy for a budget of ab…
- Reinforcement Learning
- Locomotion
- Domain Randomization
Robotics Build a verifiable portfolio.
Submissions become evidence. Reviewers with shipping experience score against a rubric; the result becomes a credential anyone can verify.
Why Ewance
- ResearchIntermediateNew
Detect Coordinated Inauthentic Behavior on a News-Sharing Network
You receive a 60-day sample of about 6 million posts mentioning a recent election, with account metadata (creation date, posting times, follower graph). Design and prototype a C…
- Network Analysis
- Anomaly Detection
- Near Duplicate Detection
Social Network Analysis and Web Science - ResearchIntermediateNew
Audit Recommender Filter Bubbles for a Civic Forum
You receive 90 days of impression logs (about 30 million recommendation events) tagged with content viewpoint labels (left-leaning, center, right-leaning, non-political) from an…
- Recommender Evaluation
- Diversity Metrics
- Audit Methodology
Social Network Analysis and Web Science - ResearchIntermediateNew
Annual Report Teardown: Zalando vs. ASOS for an Equity Note
Download the latest annual reports for Zalando SE and ASOS plc from their investor relations pages and build a side-by-side analysis covering: (1) structure and quality of the i…
- Financial Statement Analysis
- Ratio Analysis
- IFRS Interpretation
Financial Accounting - AnalysisIntermediateNew
Redesign Transfer Pricing for a German Auto Supplier
Build a transfer pricing model for one EV component line (e.g., e-axle housing) flowing Germany → Hungary → Mexico → US OEM. Compare cost-plus, market-based, and negotiated appr…
- Transfer Pricing
- Managerial Accounting
- Tax Strategy
Advanced Management Accounting & Control - StrategyIntermediateNew
Designing a Developer Ecosystem for a Fintech API
Design a 12-month ecosystem strategy to grow active third-party developers in Italy and Spain by 3x, including governance rules, incentive structures, and partner tiers. Constra…
- Ecosystem Design
- Platform Strategy
- Developer Relations
Alliances, Networks and Ecosystems - StrategyIntermediateNew
Rebranding a B2B SaaS Scale-up for Global Expansion
As a marketing analyst, you must recommend whether TaskFlow should use a single global brand or adapt its brand name, logo, and messaging for key markets (Germany, Japan, Brazil…
- Brand Strategy
- Cross Cultural B2B Marketing
- Positioning
International Marketing - AnalysisIntermediateNew
Social Preferences in a 40-Person SaaS Scale-Up
You are an internal behavioral economist at TaskFlow. Analyze the current compensation structure (50% base, 50% individual commission) and its behavioral pitfalls. Propose a new…
- Incentive Design
- Game Theory
- Social Preferences
Behavioral Economics - StrategyIntermediateNew
Prospect Theory in Pricing for a 40-Person SaaS Scale-Up
You are a pricing strategist at TaskFlow. Your task is to analyze how existing PLG customers (who pay a flat fee) would perceive a move to tiered pricing. Using prospect theory,…
- Prospect Theory
- Loss Aversion
- Framing Effects
Behavioural Finance - StrategyIntermediateNew
Brand Crisis Simulation for a Fast-Food Chain
You are the brand crisis team at QuickBite. Within 48 hours of the video's release, you must draft a public statement, an internal memo, and a 30-day crisis management plan. The…
- Crisis Communication
- Stakeholder Management
- Brand Equity
Brand Management - StrategyIntermediateNew
Data Privacy Ethics for a 40-Person SaaS Scale-Up
You are the Data Ethics Officer at DataFlow. The enterprise client wants to use anonymized customer interaction data to train their AI models. Your task is to create a data gove…
- Data Privacy
- GDPR Compliance
- Ethical Framework Design
Business Ethics and Corporate Responsibility - StrategyIntermediateNew
Developing a Crisis Communication Plan for a 40-Person SaaS Scale-Up
Your team must produce a crisis communication plan within 2 weeks. The plan should include: a holding statement for immediate release, a detailed internal memo to employees, a c…
- Crisis Communication
- Stakeholder Management
- Press Release Writing
Business Communication - StrategyIntermediateNew
Regulatory Strategy for a Fintech Scale-Up in India
You are a team of two regulatory analysts at PayBridge. Your task is to: (1) assess the impact of the new RBI guidelines on PayBridge's current operations, (2) develop a complia…
- Regulatory Compliance
- Public Policy
- Stakeholder Management
Business, Government and Society
How it works
From brief to credential, in six steps.
Step 01
Browse challenges aligned to your studies.
Step 02
Accept the one that fits your goals.
Step 03
Work through it with AI Copilot guidance.
Step 04
Submit for structured evaluation.
Step 05
Earn a verified credential.
Step 06
Add it to LinkedIn with one click.
Industry teams behind a decade of practitioner briefs
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Sponsor a challenge and meet candidates through actual work.
Industry teams can shape briefs around the skills they hire for, then evaluate students on rubric-scored deliverables — not resumes.