Collect and clean signals
Assemble behaviour, item metadata and location or geo-coordinates, then normalise location formats and remove inconsistent timestamps.
Serve location-aware recommendations. Balance proximity with relevance.
Location-aware recommendation augments user–item signals with geographic or contextual proximity so suggestions are relevant where the user is. Key challenges include sparse location coverage, privacy and balancing proximity with item relevance and business constraints.
Learning concept · Not a validated service
Location-aware recommendation augments user–item signals with geographic or contextual proximity so suggestions are relevant where the user is. Key challenges include sparse location coverage, privacy and balancing proximity with item relevance and business constraints.
A proposed application is a mobile retail recommender that prioritises nearby stores and in-stock items while allowing users to opt out of location sharing; the supplied starter does not implement this extension.
Assemble behaviour, item metadata and location or geo-coordinates, then normalise location formats and remove inconsistent timestamps.
Start with user- or item-based collaborative filtering and add a location-weighting term that downweights distant items at ranking time.
Measure Precision@K, Recall@K and NDCG on held-out sessions broken down by distance bands to show how proximity alters quality.
Expose a location-filtered endpoint with caching, a non-location fallback, and explicit user consent for location data.
The supplied starter builds a small user–item rating matrix from six synthetic ratings, computes cosine similarity between users, selects the most similar neighbour to a target user, and recommends that neighbour's highest-rated unseen items. It contains no location or context signals and uses a tiny hand-crafted dataset.
matrix = ratings.pivot_table(index="user", columns="item", values="rating").fillna(0)
user_similarity = pd.DataFrame(
cosine_similarity(matrix),
index=matrix.index,
columns=matrix.index,
)
target_user = "user_1"
neighbor = user_similarity[target_user].drop(target_user).idxmax()
unseen_items = matrix.loc[target_user][matrix.loc[target_user] == 0].index
scores = matrix.loc[neighbor, unseen_items].sort_values(ascending=False)The code implements a basic user-based collaborative filter but contains no location or contextual features, and the tiny synthetic rating table cannot validate location-aware behaviour or production performance.
A proposed extension is to combine the CF score with a distance-based decay (for example, score' = CF_score * f(distance)) and to filter by store availability, producing nearby, relevant recommendations.
This is a potential application pathway, not a delivered product. The supplied starter does not implement this service or validate it with real users.
Networkers Home runs this topic inside its AI Engineer Course, with placement support and hands-on labs.