نتایج جستجو برای: ranking methods

تعداد نتایج: 1899936  

2012
Yanyan Lan Jiafeng Guo Xueqi Cheng Tie-Yan Liu

This paper is concerned with the statistical consistency of ranking methods. Recently, it was proven that many commonly used pairwise ranking methods are inconsistent with the weighted pairwise disagreement loss (WPDL), which can be viewed as the true loss of ranking, even in a low-noise setting. This result is interesting but also surprising, given that the pairwise ranking methods have been s...

Journal: :JCP 2014
Yangming Zhou Yangguang Liu Jiangang Yang Xiaoqi He Liangliang Liu

The problem of learning label rankings is receiving increasing attention from machine learning and data mining community. Its goal is to learn a mapping from instances to rankings over a finite number of labels. In this paper, we devote to giving an overview of the state-of-the-art in the area of label ranking, and providing a basic taxonomy of the label ranking algorithms. Specifically, we cla...

Journal: :CoRR 2015
Aleksei Kondratev Vladimir V. Mazalov

This paper considers the ranking problem of candidates for a certain position based on ballot papers filled by voters. We suggest a ranking procedure of alternatives using cooperative game theory methods. For this, it is necessary to construct a characteristic function via the filled ballot paper profile of voters. The Shapley value serves as the ranking method. The winner is the candidate havi...

Journal: :CoRR 2014
Jan Leike

The scope of this work is the constraint-based synthesis of termination arguments for the restricted class of programs called linear lasso programs. A termination argument consists of a ranking function as well as a set of supporting invariants. We extend existing methods in several ways. First, we use Motzkin’s Transposition Theorem instead of Farkas’ Lemma. This allows us to consider linear l...

2014
Leilei Kong Yong Han Zhongyuan Han Haihao Yu Qibo Wang Tinglei Zhang Haoliang Qi

This paper regards the query keywords selection problem in source retrieval as learning a ranking model to choose the method of keywords extraction over suspicious document segments. Four basic methods are used in our ranking function: BM25, TFIDF, TF and EW. Then, a ranking model based on Ranking SVM is proposed to rank the query keywords group which is contributed to get the higher evaluation...

Journal: :Int. J. Found. Comput. Sci. 2007
Ittai Balaban Amir Pnueli Lenore D. Zuck

Predicate abstraction has become one of the most successful methodologies for proving safety properties of programs. Recently, several abstraction methodologies have been proposed for proving liveness properties. This paper studies “ranking abstraction” where a program is augmented by a non-constraining progress monitor based on a set of ranking functions, and further abstracted by predicate-ab...

Journal: :Int. J. Intell. Syst. 2011
Heli Sun Jianbin Huang Boqin Feng

Ranking is a core problem for information retrieval since the performance of the search system is directly impacted by the accuracy of ranking results. Ranking model construction has been the focus of both the fields of information retrieval and machine learning, and learning to rank in particular has attracted much interest. Many ranking models have been proposed, for example, RankSVM is a sta...

2014
Nattapong Tongtep Frans Coenen Thanaruk Theeramunkong

Text readability is typically defined in terms of “grade level”; the expected educational level of the reader at which the text is directed. Mechanisms for measuring readability in English documents are well established; however this is not in case in many other languages, such as syllabic alphabetic languages. In this paper seven different mechanisms for assessing the readability of syllabic a...

Journal: :Informatica, Lith. Acad. Sci. 2011
Jurgita Antucheviciene Algimantas Zakarevicius Edmundas Kazimieras Zavadskas

The aim of the current research is to measure objective congruence (incongruence) of the results obtained in a process of multiple criteria analysis when applying different MCDM methods. The methodology for evaluation of ranking results is developed on the ground of a case study of the redevelopment of derelict buildings as well as on composed experimental tasks. Fuzzified COPRAS, TOPSIS and VI...

2013
Abhik Seal Perumal Yogeeswari Dharmaranjan Sriram David J. Wild

BACKGROUND Mycobacterium tuberculosis encodes 11 putative serine-threonine proteins Kinases (STPK) which regulates transcription, cell development and interaction with the host cells. From the 11 STPKs three kinases namely PknA, PknB and PknG have been related to the mycobacterial growth. From previous studies it has been observed that PknB is essential for mycobacterial growth and expressed du...

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