Page 157 - JOURNAL OF LIBRARY SCIENCE IN CHINA 2018 Vol. 42

156 Journal of Library Science in China, Vol. 8, 2016

One-to-many comparisons are advantage and disadvantage comparisons between one
method and many other ones. When compared with a family of methods, words like
traditional, classic, previous, existing, usual, and ordinary are quite frequently used. When
compared with several methods, coordinating conjunctions or punctuations that represent
coordinating conjunctions are used, for example, compared with ... and ..., ... is more .... One-
to-many comparison describes more of advantage. Usually, one-to-many comparison does
not discuss disadvantage. In some one-to-many comparisons, there are specific objects to be
compared while in some others, there is no explicit reference, for example, “compared with
other methods, MCLP is more concise and applicable”. Under such a situation no method
that is compared with can be extracted.

3.4 Method process description

Method process description includes processes, steps and conditions. There are many rules for
method process description, some of the rules contain apparent feature words like first, then,
etc. For example, “Yeung et al. designed an algorithm, first using clustering to label objects and
tags to different topics, then user tag sets are investigated to determine the user tag vector under
different interest topics”, “In this paper we use spectrum characteristics arrangement-based
transfer classification method to predict customer defection. The process is as follows. First, we
designed methods for data dimension fusion and data attribute normalization to normalize the
data representation. Then we use spectrum characteristics arrangement to establish the mapping
between different fields of data. This will achieve approximate unified characteristics distribution
between heterogeneous domains. Finally, we use TSVM classification model for customer
classification. Thus we can recognize the loyalty of customers and customer churn.
Some method process descriptions describe presupposition as well as conditions. For example,
“The presupposition of this method is that every author contributes the same to the paper, that is
they have the same contribution factor”. Some descriptions just have no rules. For example, in the
personalized sorting method we use the user search history information to train user interest model,
and use collaborative recommendation algorithm to obtain neighbor users with common interests.
We sort the search results according to the extent and degree of recommendation of neighbor users
as well as the similarity between the user interest model and the document. In this description,
there is no apparent indicator word, so it is difficult for us to recognize whether the sentence is
about method process or not.
Overall speaking, instead of using one sentence, method process description usually requires a
sentence set or a paragraph. So it is difficult to construct method process rules.