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

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On Structures of Inverted Index for Query Processing Efficiency
Xingshen Song | Xueping Zhang | Yuexiang Yang | Jicheng Quan | Kun Jiang

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Access Time Tradeoffs in Archive Compression
Matthias Petri | Alistair Moffat | P. C. Nagesh | Anthony Wirth

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Large Scale Sentiment Analysis with Locality Sensitive BitHash
Wenhao Zhang | Jianqiu Ji | Jun Zhu | Hua Xu | Bo Zhang

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Knowledge-Based Query Expansion in Real-Time Microblog Search
Chao Lv | Runwei Qiang | Feifan Fan | Jianwu Yang

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Enrichment of Academic Search Engine Results Pages by Citation-Based Graphs
Shuhei Shogen | Toshiyuki Shimizu | Masatoshi Yoshikawa

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Quality-Aware Review Selection Based on Product Feature Taxonomy
Nan Tian | Yue Xu | Yuefeng Li | Gabriella Pasi

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An Author Subject Topic Model for Expert Recommendation
Haikun Mou | Qian Geng | Jian Jin | Chong Chen

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A Keyword Recommendation Method Using CorKeD Words and Its Application to Earth Science Data
Youichi Ishida | Toshiyuki Shimizu | Masatoshi Yoshikawa

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Incorporating Distinct Opinions in Content Recommender System
Grace E. Lee | Keejun Han | Mun Yong Yi

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Detecting Automatically-Generated Arabic Tweets
Hind Almerekhi | Tamer Elsayed

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Improving Tweet Timeline Generation by Predicting Optimal Retrieval Depth
Maram Hasanain | Tamer Elsayed | Walid Magdy

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Abstract Venue Concept Detection from Location-Based Social Networks
Yi Liao | Shoaib Jameel | Wai Lam | Xing Xie

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Snapboard: A Shared Space of Visual Snippets - A Study in Individual and Asynchronous Collaborative Web Search
Teerapong Leelanupab | Hannarin Kruajirayu | Nont Kanungsukkasem

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Improving Ranking and Robustness of Search Systems by Exploiting the Popularity of Documents
Ashraf Bah | Ben Carterette

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Heading-Aware Snippet Generation for Web Search
Tomohiro Manabe | Keishi Tajima

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Smoothing Temporal Difference for Text Categorization
Fumiyo Fukumoto | Yoshimi Suzuki

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Charset Encoding Detection of HTML Documents - A Practical Experience
Shabanali Faghani | Ali Hadian | Behrouz Minaei-Bidgoli

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Structure Matters: Adoption of Structured Classification Approach in the Context of Cognitive Presence Classification
Zak Waters | Vitomir Kovanovic | Kirsty Kitto | Dragan Gasevic

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A Sequential Latent Topic-Based Readability Model for Domain-Specific Information Retrieval
Wenya Zhang | Dawei Song | Peng Zhang | Xiaozhao Zhao | Yuexian Hou

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Automatic Labelling of Topic Models Using Word Vectors and Letter Trigram Vectors
Wanqiu Kou | Fang Li | Timothy Baldwin

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A Study of Collection-Based Features for Adapting the Balance Parameter in Pseudo Relevance Feedback
Ye Meng | Peng Zhang | Dawei Song | Yuexian Hou

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An MDL-Based Frequent Itemset Hierarchical Clustering Technique to Improve Query Search Results of an Individual Search Engine
Diyah Puspitaningrum | Fauzi | Boko Susilo | Jeri Apriansyah Pagua | Aan Erlansari | Desi Andreswari | Rusdi Efendi | I. S. W. B. Prasetya

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Improving Clustering Quality by Automatic Text Summarization
Mohsen Pourvali | Salvatore Orlando | Mehrad Gharagozloo

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Tweet Timeline Generation via Graph-Based Dynamic Greedy Clustering
Feifan Fan | Runwei Qiang | Chao Lv | Wayne Xin Zhao | Jianwu Yang

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Topic Set Size Design with the Evaluation Measures for Short Text Conversation
Tetsuya Sakai | Lifeng Shang | Zhengdong Lu | Hang Li

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Towards Nuanced System Evaluation Based on Implicit User Expectations
Paul Thomas | Peter Bailey | Alistair Moffat | Falk Scholer

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A Study of Visual and Semantic Similarity for Social Image Search Recommendation
Yangjie Yao | Aixin Sun

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Company Name Disambiguation in Tweets: A Two-Step Filtering Approach
Muhammad Atif Qureshi | Arjumand Younus | Colm O'Riordan | Gabriella Pasi

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Utilizing Word Embeddings for Result Diversification in Tweet Search
Kezban Dilek Onal | Ismail Sengor Altingovde | Pinar Karagoz

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Displaying People with Old Addresses on a Map
Gang Zhang | Harumi Murakami

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A Query Expansion Approach Using Entity Distribution Based on Markov Random Fields
Rui Li | Linxue Hao | Xiaozhao Zhao | Peng Zhang | Dawei Song | Yuexian Hou

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Analysis of Cyber Army's Behaviours on Web Forum for Elect Campaign
Man-Chun Ko | Hsin-Hsi Chen

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Beyond tf-idf and Cosine Distance in Documents Dissimilarity Measure
Sunil Aryal | Kai Ming Ting | Gholamreza Haffari | Takashi Washio

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Explorations of Cross-Disciplinary Term Similarity
Hanif Sheikhadbolkarim | Laurianne Sitbon

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A Signature Approach to Patent Classification
Dilesha Seneviratne | Shlomo Geva | Guido Zuccon | Gabriela Ferraro | Timothy Chappell | Magali R. G. Meireles

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The Impact of Using Combinatorial Optimisation for Static Caching of Posting Lists
Casper Petersen | Jakob Grue Simonsen | Christina Lioma

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Improving Difficult Queries by Leveraging Clusters in Term Graph
Rajul Anand | Alexander Kotov

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EEST: Entity-Driven Exploratory Search for Twitter
Chao Lv | Runwei Qiang | Lili Yao | Jianwu Yang

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Oyster: A Tool for Fine-Grained Ontological Annotations in Free-Text
Hamed Tayebikhorami | Alejandro Metke-Jimenez | Anthony N. Nguyen | Guido Zuccon

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TopSig: A Scalable System for Hashing and Retrieving Document Signatures
Timothy Chappell | Shlomo Geva