International Conference on Information Retrieval and Applications ICIRA on July 22-23, 2026 in Tokyo, Japan

IR Theory and Practice

Searching, browsing, meta-searching
Data fusion, filtering and indexing
Language models, probabilistic IR
Learning to rank
Content classification, categorisation, clustering
Relevance feedback, query expansion, faceted retrieval
Topic detection and tracking, novelty detection
Content-based filtering, collaborative filtering
Spam detection and filtering
Personalised, collaborative or user-adaptive IR
Recommender systems
Adversarial IR
Privacy in IR
Contextual IR
Mobile, Geo and local search
Temporal IR, time-based modelling
Entity IR

Web and Social Media IR

Link analysis
Query log analysis
Advertising and ad targeting
Spam detection
Trust, authority, reputation, ranking
Blog and online-community search, microblogs
Social search
Social tagging
Social networking and Web based communities
Trend identification and tracking
Time series and forecasting

User aspects

User modelling, user studies, user interaction and history
Interactive IR
Task-based IR
Click models
Novel user interfaces for IR systems
Visualisation of queries, search results or content
Multimodal aspects

IR system architectures

Distributed and peer to peer IR
Cloud IR
Federated IR
Aggregated Search
Fusion/Combination
Open, interoperable and flexible systems
Performance, scalability, efficiency
Architectures and platforms
Crawling and indexing
Compression, optimisation
Map/Reduce for IR

Content representation and processing

IR for semi-structured documents
IR for semantically annotated collections, semantic search
Reasoning for IR
Meta information and structures, metadata
Query representation, query reformulation
Text categorisation and clustering
Text data mining
Opinion mining, sentiment analysis
Cross-language retrieval, multilingual retrieval
Machine translation for IR
Question answering
Natural language processing
Summarization for IR

Evaluation

Evaluation methods and metrics
Building test collections
Experimental design
Crowdsourcing for evaluation, human computing
User-oriented and user-centred test and evaluation
Metric comparison and evaluation
Offline vs online evaluation

Multimedia and cross-media IR

Speech retrieval
Image and video retrieval
Entity retrieval
Digital music, radio and broadcast retrieval
Virtual reality and information access

Applications

Digital libraries
Enterprise and intranet search
Desktop search
Mobile IR
Genomic IR, IR for chemical structures
Medical IR
Legal IR, patent search
eScience
The Internet of Things