@prefix : . @prefix owl: . @prefix rdf: . @prefix xml: . @prefix xsd: . @prefix rdfs: . @base . rdf:type owl:Ontology ; owl:versionIRI ; "2025-01-27"^^xsd:date ; "Konstantinos Kotis" , "Sotirios Angelis" ; "User profiles learned from trajectories: a UserProfile per person, a chain of timestamped ProfileSnapshots updated by an exponentially weighted moving average, POI category, dwell and time preferences, visit styles, and the preferences inferred by the semantic rules."@en ; "2026-10-01"^^xsd:date ; ; "2026-10-01"^^xsd:date ; "i-Lab, Department of Cultural Technology and Communication, University of the Aegean" ; "Trajecto User Profile Module"@en ; "user" ; "http://w3id.org/trajecto/user#" ; rdfs:label "trajecto-user"@en ; owl:priorVersion ; owl:versionInfo "1.1.0" . ################################################################# # Annotation properties ################################################################# ### http://purl.org/dc/terms/created rdf:type owl:AnnotationProperty . ### http://purl.org/dc/terms/creator rdf:type owl:AnnotationProperty . ### http://purl.org/dc/terms/description rdf:type owl:AnnotationProperty . ### http://purl.org/dc/terms/issued rdf:type owl:AnnotationProperty . ### http://purl.org/dc/terms/license rdf:type owl:AnnotationProperty . ### http://purl.org/dc/terms/modified rdf:type owl:AnnotationProperty . ### http://purl.org/dc/terms/publisher rdf:type owl:AnnotationProperty . ### http://purl.org/dc/terms/title rdf:type owl:AnnotationProperty . ### http://purl.org/vocab/vann/preferredNamespacePrefix rdf:type owl:AnnotationProperty . ### http://purl.org/vocab/vann/preferredNamespaceUri rdf:type owl:AnnotationProperty . ################################################################# # Datatypes ################################################################# ### http://www.w3.org/2001/XMLSchema#date xsd:date rdf:type rdfs:Datatype . ################################################################# # Object Properties ################################################################# ### http://w3id.org/trajecto/user#belongsToUser :belongsToUser rdf:type owl:ObjectProperty ; owl:inverseOf :hasTrajectory ; rdfs:domain ; rdfs:range :UserProfile ; rdfs:comment "Associates a trajectory with its user profile"@en ; rdfs:isDefinedBy ; rdfs:label "belongs to user"@en . ### http://w3id.org/trajecto/user#considersTrajectory :considersTrajectory rdf:type owl:ObjectProperty ; rdfs:domain :UserProfile ; rdfs:range ; rdfs:comment "Relates a user profile to a trajectory taken into account when learning it."@en ; rdfs:isDefinedBy ; rdfs:label "considers trajectory"@en . ### http://w3id.org/trajecto/user#forCategory :forCategory rdf:type owl:ObjectProperty ; rdfs:domain :Preference ; rdfs:comment "The POI class an inferred preference refers to. The value is a class of the POI module used as an individual."@en ; rdfs:isDefinedBy ; rdfs:label "for category"@en . ### http://w3id.org/trajecto/user#generatedSnapshot :generatedSnapshot rdf:type owl:ObjectProperty ; rdfs:domain ; rdfs:range :ProfileSnapshot ; rdfs:comment "Relates a trajectory to the profile snapshot its update produced."@en ; rdfs:isDefinedBy ; rdfs:label "generated snapshot"@en . ### http://w3id.org/trajecto/user#hasAffinityFor :hasAffinityFor rdf:type owl:ObjectProperty ; rdfs:domain ; rdfs:comment "A person has a strong inferred preference for a POI class. The value is a class of the POI module used as an individual."@en ; rdfs:isDefinedBy ; rdfs:label "has affinity for"@en . ### http://w3id.org/trajecto/user#hasDwellPreference :hasDwellPreference rdf:type owl:ObjectProperty ; rdfs:domain :UserProfile ; rdfs:range :DwellPreference ; rdfs:comment "Relates a user profile to its dwell preference."@en ; rdfs:isDefinedBy ; rdfs:label "has dwell preference"@en . ### http://w3id.org/trajecto/user#hasInferredPreference :hasInferredPreference rdf:type owl:ObjectProperty ; rdfs:domain ; rdfs:range :Preference ; rdfs:comment "Relates a person to a category preference inferred from all of their trajectories."@en ; rdfs:isDefinedBy ; rdfs:label "has inferred preference"@en . ### http://w3id.org/trajecto/user#hasPreference :hasPreference rdf:type owl:ObjectProperty ; rdfs:domain :UserProfile ; rdfs:range :Preference ; rdfs:comment "Relates a user profile directly to a category preference, without a chain of snapshots."@en ; rdfs:isDefinedBy ; rdfs:label "has preference"@en . ### http://w3id.org/trajecto/user#hasPreferences :hasPreferences rdf:type owl:ObjectProperty ; rdfs:domain :ProfileSnapshot ; rdfs:range :Preference ; rdfs:comment "Relates a profile snapshot to a POI category preference it holds."@en ; rdfs:isDefinedBy ; rdfs:label "has preferences"@en . ### http://w3id.org/trajecto/user#hasProfile :hasProfile rdf:type owl:ObjectProperty ; rdfs:domain ; rdfs:range :UserProfile ; rdfs:comment "Relates a person to their user profile."@en ; rdfs:isDefinedBy ; rdfs:label "has profile"@en . ### http://w3id.org/trajecto/user#hasSnapshot :hasSnapshot rdf:type owl:ObjectProperty ; rdfs:domain :UserProfile ; rdfs:range :ProfileSnapshot ; rdfs:comment "Relates a user profile to one of its snapshots."@en ; rdfs:isDefinedBy ; rdfs:label "has snapshot"@en . ### http://w3id.org/trajecto/user#hasTimePreference :hasTimePreference rdf:type owl:ObjectProperty ; rdfs:domain :UserProfile ; rdfs:range :TimePreference ; rdfs:comment "Relates a user profile to its time preference."@en ; rdfs:isDefinedBy ; rdfs:label "has time preference"@en . ### http://w3id.org/trajecto/user#hasTrajectory :hasTrajectory rdf:type owl:ObjectProperty ; rdfs:domain :UserProfile ; rdfs:range ; rdfs:comment "Links a user profile to their trajectories"@en ; rdfs:isDefinedBy ; rdfs:label "has trajectory"@en . ### http://w3id.org/trajecto/user#hasVisitStyle :hasVisitStyle rdf:type owl:ObjectProperty ; rdfs:domain :UserProfile ; rdfs:range :PreferredStyle ; rdfs:comment "Relates a user profile to its preferred visit style."@en ; rdfs:isDefinedBy ; rdfs:label "has visit style"@en . ### http://w3id.org/trajecto/user#prefersPoiCategory :prefersPoiCategory rdf:type owl:ObjectProperty ; rdfs:domain :PoiCategoryPreference ; rdfs:comment "The POI class that a POI category preference scores. The value is a class of the POI module used as an individual."@en ; rdfs:isDefinedBy ; rdfs:label "prefers POI category"@en . ################################################################# # Data properties ################################################################# ### http://w3id.org/trajecto/user#alignmentScore :alignmentScore rdf:type owl:DatatypeProperty ; rdfs:range xsd:float ; rdfs:comment "How well trajectory aligns with user preferences"@en ; rdfs:isDefinedBy ; rdfs:label "alignment score"@en . ### http://w3id.org/trajecto/user#confidenceLevel :confidenceLevel rdf:type owl:DatatypeProperty ; rdfs:domain :Preference ; rdfs:range xsd:float ; rdfs:comment "Confidence in the preference prediction (0.0 to 1.0)"@en ; rdfs:isDefinedBy ; rdfs:label "confidence level"@en . ### http://w3id.org/trajecto/user#hasInterest :hasInterest rdf:type owl:DatatypeProperty ; rdfs:domain :UserProfile ; rdfs:range xsd:string ; rdfs:comment "A free-text interest keyword of a user profile."@en ; rdfs:isDefinedBy ; rdfs:label "has interest"@en . ### http://w3id.org/trajecto/user#immersiveFraction :immersiveFraction rdf:type owl:DatatypeProperty ; rdfs:domain :Preference ; rdfs:range xsd:float ; rdfs:comment "Share of the interactions with the category that are immersive."@en ; rdfs:isDefinedBy ; rdfs:label "immersive fraction"@en . ### http://w3id.org/trajecto/user#initialPreferences :initialPreferences rdf:type owl:DatatypeProperty ; rdfs:domain :ProfileSnapshot ; rdfs:range xsd:boolean ; rdfs:comment "True for the initial snapshot of a user profile, created before any trajectory updates it."@en ; rdfs:isDefinedBy ; rdfs:label "initial preferences"@en . ### http://w3id.org/trajecto/user#interestLevel :interestLevel rdf:type owl:DatatypeProperty ; rdfs:domain :UserProfile ; rdfs:range xsd:float ; rdfs:comment "Interest level from 0.0 to 1.0"@en ; rdfs:isDefinedBy ; rdfs:label "interest level"@en . ### http://w3id.org/trajecto/user#lastUpdated :lastUpdated rdf:type owl:DatatypeProperty ; rdfs:domain :UserProfile ; rdfs:range xsd:dateTime ; rdfs:comment "When the user profile was last updated."@en ; rdfs:isDefinedBy ; rdfs:label "last updated"@en . ### http://w3id.org/trajecto/user#learningRate :learningRate rdf:type owl:DatatypeProperty ; rdfs:domain [ rdf:type owl:Class ; owl:unionOf ( :ProfileSnapshot :UserProfile ) ] ; rdfs:range xsd:float ; rdfs:comment "Smoothing factor alpha of the EWMA preference update (0.15)."@en ; rdfs:isDefinedBy ; rdfs:label "learning rate"@en . ### http://w3id.org/trajecto/user#meaningfulFraction :meaningfulFraction rdf:type owl:DatatypeProperty ; rdfs:domain :Preference ; rdfs:range xsd:float ; rdfs:comment "Share of the interactions with the category that are meaningful."@en ; rdfs:isDefinedBy ; rdfs:label "meaningful fraction"@en . ### http://w3id.org/trajecto/user#observationCount :observationCount rdf:type owl:DatatypeProperty ; rdfs:domain :PoiCategoryPreference ; rdfs:range xsd:integer ; rdfs:comment "Number of interactions with the category that a POI category preference has accumulated."@en ; rdfs:isDefinedBy ; rdfs:label "observation count"@en . ### http://w3id.org/trajecto/user#preferenceScore :preferenceScore rdf:type owl:DatatypeProperty ; rdfs:domain :Preference ; rdfs:range xsd:float ; rdfs:comment "Score from 0.0 to 1.0 indicating preference strength"@en ; rdfs:isDefinedBy ; rdfs:label "preference score"@en . ### http://w3id.org/trajecto/user#profileCreated :profileCreated rdf:type owl:DatatypeProperty ; rdfs:domain :UserProfile ; rdfs:range xsd:dateTime ; rdfs:comment "When the user profile was created."@en ; rdfs:isDefinedBy ; rdfs:label "profile created"@en . ### http://w3id.org/trajecto/user#totalVisits :totalVisits rdf:type owl:DatatypeProperty ; rdfs:domain :Preference ; rdfs:range xsd:integer ; rdfs:comment "Number of interactions with the category."@en ; rdfs:isDefinedBy ; rdfs:label "total visits"@en . ### http://w3id.org/trajecto/user#updateTimestamp :updateTimestamp rdf:type owl:DatatypeProperty ; rdfs:domain :ProfileSnapshot ; rdfs:range xsd:dateTime ; rdfs:comment "The time a profile snapshot refers to: the end of the trajectory that produced it."@en ; rdfs:isDefinedBy ; rdfs:label "update timestamp"@en . ################################################################# # Classes ################################################################# ### http://w3id.org/trajecto#Person rdf:type owl:Class . ### http://w3id.org/trajecto/user#CasualStyle :CasualStyle rdf:type owl:Class ; rdfs:subClassOf :PreferredStyle ; rdfs:comment "A preference for unhurried, casual visits."@en ; rdfs:isDefinedBy ; rdfs:label "Casual Style"@en . ### http://w3id.org/trajecto/user#DwellPreference :DwellPreference rdf:type owl:Class ; rdfs:subClassOf :Preference ; rdfs:comment "A preference for how long to stay at POIs."@en ; rdfs:isDefinedBy ; rdfs:label "Dwell Preference"@en . ### http://w3id.org/trajecto/user#ExploratoryStyle :ExploratoryStyle rdf:type owl:Class ; rdfs:subClassOf :PreferredStyle ; rdfs:comment "A preference for visits that cover many POIs."@en ; rdfs:isDefinedBy ; rdfs:label "Exploratory Style"@en . ### http://w3id.org/trajecto/user#ImmersiveStyle :ImmersiveStyle rdf:type owl:Class ; rdfs:subClassOf :PreferredStyle ; rdfs:comment "A preference for long, absorbed visits to few POIs."@en ; rdfs:isDefinedBy ; rdfs:label "Immersive Style"@en . ### http://w3id.org/trajecto/user#LongDwell :LongDwell rdf:type owl:Class ; rdfs:subClassOf :DwellPreference ; rdfs:comment "Preference for extended visits (>45 minutes)"@en ; rdfs:isDefinedBy ; rdfs:label "Long Dwell"@en . ### http://w3id.org/trajecto/user#MediumDwell :MediumDwell rdf:type owl:Class ; rdfs:subClassOf :DwellPreference ; rdfs:comment "Preference for moderate visits (15-45 minutes)"@en ; rdfs:isDefinedBy ; rdfs:label "Medium Dwell"@en . ### http://w3id.org/trajecto/user#PoiCategoryPreference :PoiCategoryPreference rdf:type owl:Class ; rdfs:subClassOf :Preference ; rdfs:comment "Preference for specific POI categories"@en ; rdfs:isDefinedBy ; rdfs:label "POI Category Preference"@en . ### http://w3id.org/trajecto/user#PreferedStyle :PreferedStyle rdf:type owl:Class ; owl:equivalentClass :PreferredStyle ; rdfs:comment "Deprecated since 1.1.0: renamed to PreferredStyle."@en ; rdfs:label "PreferedStyle (deprecated)"@en ; owl:deprecated "true"^^xsd:boolean . ### http://w3id.org/trajecto/user#Preference :Preference rdf:type owl:Class ; rdfs:comment "A preference of a user. Specialized as POI category, dwell, time and visit-style preferences."@en ; rdfs:isDefinedBy ; rdfs:label "Preference"@en . ### http://w3id.org/trajecto/user#PreferredStyle :PreferredStyle rdf:type owl:Class ; rdfs:subClassOf :Preference ; rdfs:comment "The visit style a user prefers: casual, exploratory, immersive or targeted."@en ; rdfs:isDefinedBy ; rdfs:label "Preferred Style"@en . ### http://w3id.org/trajecto/user#ProfileSnapshot :ProfileSnapshot rdf:type owl:Class ; rdfs:comment "The state of a user profile after a trajectory. Each snapshot updates the previous one by an exponentially weighted moving average of the preferences the trajectory shows."@en ; rdfs:isDefinedBy ; rdfs:label "Profile Snapshot"@en . ### http://w3id.org/trajecto/user#ShortDwell :ShortDwell rdf:type owl:Class ; rdfs:subClassOf :DwellPreference ; rdfs:comment "Preference for brief visits (<15 minutes)"@en ; rdfs:isDefinedBy ; rdfs:label "Short Dwell"@en . ### http://w3id.org/trajecto/user#TargetedStyle :TargetedStyle rdf:type owl:Class ; rdfs:subClassOf :PreferredStyle ; rdfs:comment "A preference for direct visits to one or two POIs."@en ; rdfs:isDefinedBy ; rdfs:label "Targeted Style"@en . ### http://w3id.org/trajecto/user#TimePreference :TimePreference rdf:type owl:Class ; rdfs:subClassOf :Preference ; rdfs:comment "Preference for visit times"@en ; rdfs:isDefinedBy ; rdfs:label "Time Preference"@en . ### http://w3id.org/trajecto/user#UserProfile :UserProfile rdf:type owl:Class ; rdfs:comment "The learned profile of a person: preferences over POI categories, dwell, time and visit style, kept as a chain of timestamped snapshots."@en ; rdfs:isDefinedBy ; rdfs:label "User Profile"@en . ### http://w3id.org/trajecto/user#VariableDwell :VariableDwell rdf:type owl:Class ; rdfs:subClassOf :DwellPreference ; rdfs:comment "No specific dwell time preference"@en ; rdfs:isDefinedBy ; rdfs:label "Variable Dwell"@en . ### http://www.datacron-project.eu/datAcron#Trajectory rdf:type owl:Class . ################################################################# # Individuals ################################################################# ### http://w3id.org/trajecto/user#businessTravelerPersona :businessTravelerPersona rdf:type owl:NamedIndividual ; :hasDwellPreference :shortDwellPref ; :hasVisitStyle :targetedStyle ; :hasInterest "efficiency" , "restaurants" , "transport" ; rdfs:comment "Example persona: short, targeted visits to restaurants and transport."@en ; rdfs:isDefinedBy ; rdfs:label "Business Traveler Persona"@en . ### http://w3id.org/trajecto/user#casualStyle :casualStyle rdf:type owl:NamedIndividual , :CasualStyle ; rdfs:comment "The casual visit style."@en ; rdfs:isDefinedBy ; rdfs:label "Casual Visit Style"@en . ### http://w3id.org/trajecto/user#culturalEnthusiastPersona :culturalEnthusiastPersona rdf:type owl:NamedIndividual ; :hasDwellPreference :longDwellPref ; :hasVisitStyle :immersiveStyle ; :hasInterest "galleries" , "heritage" , "museums" ; rdfs:comment "Example persona: long, immersive visits to museums, galleries and heritage."@en ; rdfs:isDefinedBy ; rdfs:label "Cultural Enthusiast Persona"@en . ### http://w3id.org/trajecto/user#exploratoryStyle :exploratoryStyle rdf:type owl:NamedIndividual , :ExploratoryStyle ; rdfs:comment "The exploratory visit style."@en ; rdfs:isDefinedBy ; rdfs:label "Exploratory Visit Style"@en . ### http://w3id.org/trajecto/user#immersiveStyle :immersiveStyle rdf:type owl:NamedIndividual , :ImmersiveStyle ; rdfs:comment "The immersive visit style."@en ; rdfs:isDefinedBy ; rdfs:label "Immersive Visit Style"@en . ### http://w3id.org/trajecto/user#leisureVisitorPersona :leisureVisitorPersona rdf:type owl:NamedIndividual ; :hasDwellPreference :variableDwellPref ; :hasVisitStyle :casualStyle ; :hasInterest "dining" , "entertainment" , "shopping" ; rdfs:comment "Example persona: casual visits of variable length for dining, shopping and entertainment."@en ; rdfs:isDefinedBy ; rdfs:label "Leisure Visitor Persona"@en . ### http://w3id.org/trajecto/user#longDwellPref :longDwellPref rdf:type owl:NamedIndividual , :LongDwell ; rdfs:comment "A preference for long dwell (over 45 minutes)."@en ; rdfs:isDefinedBy ; rdfs:label "Long Dwell Preference"@en . ### http://w3id.org/trajecto/user#mediumDwellPref :mediumDwellPref rdf:type owl:NamedIndividual , :MediumDwell ; rdfs:comment "A preference for medium dwell (15 to 45 minutes)."@en ; rdfs:isDefinedBy ; rdfs:label "Medium Dwell Preference"@en . ### http://w3id.org/trajecto/user#shortDwellPref :shortDwellPref rdf:type owl:NamedIndividual , :ShortDwell ; rdfs:comment "A preference for short dwell (under 15 minutes)."@en ; rdfs:isDefinedBy ; rdfs:label "Short Dwell Preference"@en . ### http://w3id.org/trajecto/user#targetedStyle :targetedStyle rdf:type owl:NamedIndividual , :TargetedStyle ; rdfs:comment "The targeted visit style."@en ; rdfs:isDefinedBy ; rdfs:label "Targeted Visit Style"@en . ### http://w3id.org/trajecto/user#touristExplorerPersona :touristExplorerPersona rdf:type owl:NamedIndividual ; :hasDwellPreference :mediumDwellPref ; :hasVisitStyle :exploratoryStyle ; :hasInterest "culture" , "history" , "landmarks" ; rdfs:comment "Example persona: exploratory visits of medium length to landmarks."@en ; rdfs:isDefinedBy ; rdfs:label "Tourist Explorer Persona"@en . ### http://w3id.org/trajecto/user#variableDwellPref :variableDwellPref rdf:type owl:NamedIndividual , :VariableDwell ; rdfs:comment "No particular dwell preference."@en ; rdfs:isDefinedBy ; rdfs:label "Variable Dwell Preference"@en . ### Generated by the OWL API (version 5.1.18) https://github.com/owlcs/owlapi/