Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chases and Bag-Set Certain Answers   In this paper we show that the chase technique is powerful enough to capture
the bag-set semantics of conjunctive queries over IDBs and IDs and TGDs. In
addition, we argue that in such cases it provides efficient (LogSpace) query
evaluation algorithms and that, moreover, it can serve as a basis for
evaluating some restricted classes of aggregate queries under incomplete
information.

21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th