Multidimensional Mining of Massive Text Data (Synthesis Lectures on Data Mining and Knowledge Discovery)

Unstructured text, as one of the most important data forms, plays a crucial role in data-driven decision making in domains ranging from social networking and information retrieval to scientific research and healthcare informatics. In many emerging applications, people's information need from text data is becoming multidimensional--they demand useful insights along multiple aspects from a text corpus. However, acquiring such multidimensional knowledge from massive text data remains a challenging task. This book presents data mining techniques that turn unstructured text data into multidimensional knowledge. We investigate two core questions. (1) How does one identify task-relevant text data with declarative queries in multiple dimensions? (2) How does one distill knowledge from text data in a multidimensional space? To address the above questions, we develop a text cube framework. First, we develop a cube construction module that organizes unstructured data into a cube structure, by discovering latent multidimensional and multi-granular structure from the unstructured text corpus and allocating documents into the structure. Second, we develop a cube exploitation module that models multiple dimensions in the cube space, thereby distilling from user-selected data multidimensional knowledge. Together, these two modules constitute an integrated pipeline: leveraging the cube structure, users can perform multidimensional, multigranular data selection with declarative queries; and with cube exploitation algorithms, users can extract multidimensional patterns from the selected data for decision making. The proposed framework has two distinctive advantages when turning text data into multidimensional knowledge: flexibility and label-efficiency. First, it enables acquiring multidimensional knowledge flexibly, as the cube structure allows users to easily identify task-relevant data along multiple dimensions at varied granularities and further distill multidimensional knowledge. Second, the algorithms for cube construction and exploitation require little supervision; this makes the framework appealing for many applications where labeled data are expensive to obtain.

Computers & Technology

Zhang, Chao

Han,Jiawei

Networking & Cloud Computing

Morgan & Claypool Publishers

This thesis studied the effect of aging of intumescent coatings (ICs) on the reliability of protected steel columns in fire condition and developed a probabilistic approach to assess the service life of ICs applied on steel columns. In the study, Monte Carlo simulations were conducted to obtain the reliability index or failure probability of steel columns protected by ICs subjected to compartment fires. The effect of aging of intumescent coatings on the failure probability of protected steel columns was investigated by using variable insulation property of intumescent coatings in the simulation. The test data on aging effect on insulation property of intumescent coatings from literature was used. Based on the reliability analysis, a probabilistic approach is given to determine the service life of intumescent coatings for steel columns. In that approach, the failure probability of the protected steel columns is compared with the target probability of the structural fire design. The approach can also be used for probabilistic analysis of steel columns protected by conventional inert fire protection materials.

Reliability of Steel Columns Protected by Intumescent Coatings Subjected to Natural Fires (Springer Theses)

Science & Math

Physics

Springer

Ace-building channels 48(Chinese Edition)

China Textile Press

This book records a young man¡¯s drifting in Beijing for years, narrates a few young people¡¯s unheard shouting and babbling hesitation, and depicts many distant places which young people dare not and can not reach. The city is so big, and the world is so big, but no matter how small our life is, we need to try to defend it. We may be fragile, helpless, desperate or infirm once, but we should not stop the pursuit of a better life. A person needs to reserve some foolishness to live it up -- if one can¡¯t laugh out loud even in the dream, how can he dare to run naked on the beach? You can only be young once, and you gotta enjoy life. What does your better half that can go hand in hand with you for a lifetime look like? I¡¯ve been looking for so many years, only seeking to find a person with whom I can talk. Nothing lasts forever, as the red wine goes sour overnight. The story of eternal happiness, I have never seen it in reality, and how many lovers fall out and become enemies each second. We are all mortals and can¡¯t live in a fairy tale. What I want is a partner, we can grow up together, support each other, and when we get old we can count each other¡¯s white hair and tell unfunny jokes.

We Need To Talk

China Overseas Press

China is a large country of human relationships. Connections are as important as air. Connections operation is a required course for every one of us. This is a relaxing, readable, and most useful connections textbook specially written for you, which teaches people how to be unusual from the first contact and the exchange of business card, thus leaving an indelible impression and a powerful charm to others. Besides, it teaches you to get to know the overall arrangement and learn to design, in order to improve your connections with the labor-saving and diligent efforts.

Connections Are Designed (everyone can be designed if people know the human nature and heart) (Chinese Edition)

North Women&Children's Publishing House

Contacts is designed: key articles(Chinese Edition)

Northern Women and Children Publishing House

Valhalla: the Realm of the Gods. From the author of the Heaven & Earth Tarot, the RUNIC TAROT is the ultimate deck created over Norse mythology. This deck is a powerful, fierce holder of an ancient aura. It weaves together the wisdom of the Runes, the poetry of the Skalds, the valour of the Einherjars, and the evergreen bounty of life and nature. Runic Tarot is a tribute to the divine spark within humanity. 
78 full colour tarot cards and instructions

Runic Tarot: 78 full colour tarot cards and instructions

Religion & Spirituality

Jack Sephiroth

New Age & Spirituality

Lo Scarabeo

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Books by Zhang, Chao