A dissertation abstract aims at giving the reader an exact and concise knowledge of the dissertation. Abstracts of research articles are produced by their author or by professional abstractors working for abstracting services. In documentary abstracting, two main types of abstracts are identifed: indicative abstracts which point to information and informative abstracts which give detailed information about the findings of the work.
Most studies agree on a two stage logical account for describing the human production of abstracts: the analytical stage in which the salient facts of the text are obtained and condensed and the synthetic stage in which the text of the abstract is produced. Abstracting manuals give indications about grasping the “essential” content of a document and writing the abstract such as “scan the document to get some idea of the sub ject matter”, “mark the material containing information on purpose, method, findings, conclusion and recommendation”, “write a concise unified abstract”. These instructions are very conceptual and require good abstracting skills in order to be operationalized and thus are very difficult to implement in an automatic procedure.
There are dissertation abstract parts used in writing:
Use of titles. Titles of articles usually contain complete descriptions of the themes of the document so they could be used by the abstractor in order to convey the information in a more precise form. An example of such a situation can be seen in the alignment where the complete descriptions of the title is used in a sentence.
Use of introductions. Usually, statements related to the purpose, the method and the problem studied in a technical article are found in introductions, those conceptual categories have to be reported in abstracts and so are easily extracted from that section because they are lexically marked, in alignment the ob jective of the paper is stated in the introduction and in alignment the plan of the document it is so.
Use of conclusions. In the conclusion, the author usually restates the ob jective of the document, this case is exemplified in alignment.
Use of subtitles. Subtitles of sections usually indicate the sub-themes of the document but also complete descriptions of entities could be found there, in alignment the subtitle indicates the content of the section so it is used in the abstract to indicate that information.