Information Retrieval Technology: 11th Asia Information Retrieval Societies Conference, AIRS 2015, Brisbane, QLD, Australia, December 2-4, 2015. Proceedings

Front Matter....Pages I-XVIII
Front Matter....Pages 1-1
On Structures of Inverted Index for Query Processing Efficiency....Pages 3-14
Access Time Tradeoffs in Archive Compression....Pages 15-28
Large Scale Sentiment Analysis with Locality Sensitive BitHash....Pages 29-40
Front Matter....Pages 41-41
Knowledge-Based Query Expansion in Real-Time Microblog Search....Pages 43-55
Enrichment of Academic Search Engine Results Pages by Citation-Based Graphs....Pages 56-67
Quality-Aware Review Selection Based on Product Feature Taxonomy....Pages 68-80
Front Matter....Pages 81-81
An Author Subject Topic Model for Expert Recommendation....Pages 83-95
A Keyword Recommendation Method Using CorKeD Words and Its Application to Earth Science Data....Pages 96-108
Incorporating Distinct Opinions in Content Recommender System....Pages 109-120
Front Matter....Pages 121-121
Detecting Automatically-Generated Arabic Tweets....Pages 123-134
Improving Tweet Timeline Generation by Predicting Optimal Retrieval Depth....Pages 135-146
Abstract Venue Concept Detection from Location-Based Social Networks....Pages 147-157
Front Matter....Pages 159-159
Snapboard: A Shared Space of Visual Snippets - A Study in Individual and Asynchronous Collaborative Web Search....Pages 161-173
Improving Ranking and Robustness of Search Systems by Exploiting the Popularity of Documents....Pages 174-187
Heading-Aware Snippet Generation for Web Search....Pages 188-200
Front Matter....Pages 201-201
Smoothing Temporal Difference for Text Categorization....Pages 203-214
Charset Encoding Detection of HTML Documents....Pages 215-226
Structure Matters: Adoption of Structured Classification Approach in the Context of Cognitive Presence Classification....Pages 227-238
Front Matter....Pages 239-239
A Sequential Latent Topic-Based Readability Model for Domain-Specific Information Retrieval....Pages 241-252
Automatic Labelling of Topic Models Using Word Vectors and Letter Trigram Vectors....Pages 253-264
Front Matter....Pages 239-239
A Study of Collection-Based Features for Adapting the Balance Parameter in Pseudo Relevance Feedback....Pages 265-276
Front Matter....Pages 277-277
An MDL-Based Frequent Itemset Hierarchical Clustering Technique to Improve Query Search Results of an Individual Search Engine....Pages 279-291
Improving Clustering Quality by Automatic Text Summarization....Pages 292-303
Tweet Timeline Generation via Graph-Based Dynamic Greedy Clustering....Pages 304-316
Front Matter....Pages 317-317
Topic Set Size Design with the Evaluation Measures for Short Text Conversation....Pages 319-331
Towards Nuanced System Evaluation Based on Implicit User Expectations....Pages 332-344
Front Matter....Pages 345-345
A Study of Visual and Semantic Similarity for Social Image Search Recommendation....Pages 347-357
Company Name Disambiguation in Tweets: A Two-Step Filtering Approach....Pages 358-365
Utilizing Word Embeddings for Result Diversification in Tweet Search....Pages 366-378
Front Matter....Pages 379-379
Displaying People with Old Addresses on a Map....Pages 381-386
A Query Expansion Approach Using Entity Distribution Based on Markov Random Fields....Pages 387-393
Analysis of Cyber Army’s Behaviours on Web Forum for Elect Campaign....Pages 394-399
Beyond tf-idf and Cosine Distance in Documents Dissimilarity Measure....Pages 400-406
Explorations of Cross-Disciplinary Term Similarity....Pages 407-412
A Signature Approach to Patent Classification....Pages 413-419
The Impact of Using Combinatorial Optimisation for Static Caching of Posting Lists....Pages 420-425
Improving Difficult Queries by Leveraging Clusters in Term Graph....Pages 426-432
Front Matter....Pages 433-433
EEST: Entity-Driven Exploratory Search for Twitter....Pages 435-439
TopSig: A Scalable System for Hashing and Retrieving Document Signatures....Pages 440-446
Back Matter....Pages 447-452
....Pages 453-454