You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.3 KiB
65 lines
2.3 KiB
/*
|
|
* Copyright (C) 2018 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef NLP_SAFT_COMPONENTS_LANG_ID_MOBILE_MODEL_PROVIDER_H_
|
|
#define NLP_SAFT_COMPONENTS_LANG_ID_MOBILE_MODEL_PROVIDER_H_
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "lang_id/common/embedding-network-params.h"
|
|
|
|
namespace libtextclassifier3 {
|
|
namespace mobile {
|
|
namespace lang_id {
|
|
|
|
// Interface for accessing parameters for the LangId model.
|
|
//
|
|
// Note: some clients prefer to include the model parameters in the binary,
|
|
// others prefer loading them from a separate file. This file provides a common
|
|
// interface for these alternative mechanisms.
|
|
class ModelProvider {
|
|
public:
|
|
virtual ~ModelProvider() = default;
|
|
|
|
// Returns true if this ModelProvider has been succesfully constructed (e.g.,
|
|
// can return false if an underlying model file could not be read). Clients
|
|
// should not use invalid ModelProviders.
|
|
bool is_valid() { return valid_; }
|
|
|
|
// Returns the TaskContext with parameters for the LangId model. E.g., one
|
|
// important parameter specifies the features to use.
|
|
virtual const TaskContext *GetTaskContext() const = 0;
|
|
|
|
// Returns parameters for the underlying Neurosis feed-forward neural network.
|
|
virtual const EmbeddingNetworkParams *GetNnParams() const = 0;
|
|
|
|
// Returns list of languages recognized by the model. Each element of the
|
|
// returned vector should be a BCP-47 language code (e.g., "en", "ro", etc).
|
|
// Language at index i from the returned vector corresponds to softmax label
|
|
// i.
|
|
virtual std::vector<std::string> GetLanguages() const = 0;
|
|
|
|
protected:
|
|
bool valid_ = false;
|
|
};
|
|
|
|
} // namespace lang_id
|
|
} // namespace mobile
|
|
} // namespace nlp_saft
|
|
|
|
#endif // NLP_SAFT_COMPONENTS_LANG_ID_MOBILE_MODEL_PROVIDER_H_
|